W32.Mydoom.AD@mm

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Discovered: October 04, 2004
Updated: February 13, 2007 12:28:07 PM
Also Known As: Email-Worm.Win32.Mydoom.z [Kas, W32/Mydoom.ad@MM [McAfee], W32/MyDoom-Gen [Sophos], WORM_MYDOOM.AD [Trend Micro]
Type: Worm
Systems Affected: Windows


W32.Mydoom.AD@mm is a mass-mailing worm that uses its own SMTP engine to send itself to the email addresses that it finds from an infected system. It also attempts to spread itself through IRC and some popular peer-to-peer networks.




Removing entries from the Hosts file
If this threat has modified the Windows Hosts file, there are two ways to remove these entries:

  • Install and run the current version of LiveUpdate. This will remove only the entries that refer to Symantec domains.
  • Manually edit the Hosts file and remove all the entries that the worm added.

To run the current version of LiveUpdate
  1. Click download LiveUpdate.

    Note:
    If you are not reading this Web page on the computer that is getting the error notice, the address for downloading the file is:

    ftp://ftp.symantec.com/public/english_us_canada/liveupdate/lusetup.exe

    If necessary, you can type this address into the address bar of the problem computer. Changes to the Hosts file will not stop you from getting to this site.

  2. Save the file to the Windows desktop.
  3. Double-click the lusetup.exe icon on the desktop to install LiveUpdate.
  4. Run LiveUpdate.
  5. Did you see the message "LU1860: LiveUpdate has detected a potential security compromise on your computer"?
    • If you did, let LiveUpdate "Remove these entries from the hosts files" (Recommended).
      This should allow LiveUpdate to run.
    • If you did not, that was not the cause of the problem. Return to the Removal section.


To manually edit the Hosts file and remove all the entries that the worm added

Note: The location of the Hosts file may vary and some computers may not have this file. For example, if the file exists in Windows 98, it will usually be in C:\Windows; and it is located in the C:\WINNT\system32\drivers\etc folder in Windows 2000. There may also be multiple copies of this file in different locations.


Follow the instructions for your operating system:
  • Windows 95/98/Me/NT/2000
    1. Click Start, point to Find or Search, and then click Files or Folders.
    2. Make sure that "Look in" is set to (C:) and that "Include subfolders" is checked.
    3. In the "Named" or "Search for..." box, type:

      hosts

    4. Click Find Now or Search Now.
    5. For each Hosts file that you find, right-click the file, and then click Open With.
    6. Deselect the "Always use this program to open this program" check box.
    7. Scroll through the list of programs and double-click Notepad.
    8. When the file opens, delete all the entries in step number 8 of the "Technical Details" section.
    9. Close Notepad and save your changes when prompted.

  • Windows XP
    1. Click Start > Search.
    2. Click All files and folders.
    3. In the "All or part of the file name" box, type:

      hosts

    4. Verify that "Look in" is set to "Local Hard Drives" or to (C:).
    5. Click More advanced options.
    6. Check Search system folders.
    7. Check Search subfolders.
    8. Click Search.
    9. Click Find Now or Search Now.
    10. For each Hosts file that you find, right-click the file, and then click Open With.
    11. Deselect the Always use this program to open this program check box.
    12. Scroll through the list of programs and double-click Notepad.
    13. When the file opens, delete all the entries in step number 8 of the "Technical Details" section.
    14. Close Notepad and save your changes when prompted.


Antivirus Protection Dates

  • Initial Rapid Release version October 05, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version October 05, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date October 06, 2004

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Writeup By: Yana Liu

Discovered: October 04, 2004
Updated: February 13, 2007 12:28:07 PM
Also Known As: Email-Worm.Win32.Mydoom.z [Kas, W32/Mydoom.ad@MM [McAfee], W32/MyDoom-Gen [Sophos], WORM_MYDOOM.AD [Trend Micro]
Type: Worm
Systems Affected: Windows


When W32.Mydoom.AD@mm runs, it does the following:

  1. Creates the following mutexes, which prevent some variants of W32.Netsky@mm from running:
    • MuXxXxTENYKSDesignedAsTheFollowerOfSkynet-D
    • 'D'r'o'p'p'e'd'S'k'y'N'e't'
    • _-oOaxX|-+S+-+k+-+y+-+N+-+e+-+t+-|XxKOo-_
    • [SkyNet.cz]SystemsMutex
    • AdmSkynetJklS003
    • ____--->>>>U<<<<--____
    • _-oO]xX|-S-k-y-N-e-t-|Xx[Oo-_

  2. Displays a fake message box:




  3. Copies itself as the following:
    • %System%\patch31345.exe
    • %Windir%\patch31345.exe

      or:
    • %Temp%\patch31345.exe


      Notes:
    • %System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
    • %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows (Windows 95/98/Me/XP) or C:\Winnt (Windows NT/2000).
    • %Temp% is a variable that refers to the Windows temporary folder. By default, this is C:\Windows\TEMP (Windows 95/98/Me/XP) or C:\WINNT\Temp (Windows NT/2000).

  4. Creates one of the following registry keys:
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\
      Explorer\ComDlg32\Version
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\
      Explorer\ComDlg32\Version

  5. Adds a value:

    "AV Client" = "%System%\patch31345.exe"

    to one of the registry keys:
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

  6. Adds a value:

    "AV Industry" = "%Windir%\patch31345.exe"

    to one of the registry keys:
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

  7. Deletes the following values:
    • Winsock2 driver
    • Microsoft IE Execute shell
    • tmproxy
    • NAV Agent
    • McAfeeVirusScanService
    • pccguide.exe
    • PCCIOMON.exe
    • PCClient.exe
    • McVsRte
    • McRegWiz
    • VSOCheckTask
    • VirusScan Online
    • MCUpdateExe
    • ScriptBlocking
    • ccApp
    • NPROTECT
    • F-Secure Manager
    • F-Secure TNB
    • Zone Labs Client Ex
    • Tiny AV
    • SysMonXP
    • Special Firewall Service
    • SkynetsRevenge
    • PandaAVEngine
    • Norton Antivirus AV
    • NetDy
    • My AV
    • MsInfo
    • KasperskyAVEng
    • Jammer2nd
    • ICQNet
    • ICQ Net
    • HtProtect
    • FirewallSvr
    • EasyAV
    • Antivirus
    • 9XHtProtect

      from the registry key:

      HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

  8. Appends the following lines to the file, %System%\drivers\etc\hosts, which prevents access to certain security-related Web sites:

    127.0.0.1 www.pandasoftware.com
    127.0.0.1 www.avp.com
    127.0.0.1 www.viruslist.com
    127.0.0.1 viruslist.com
    127.0.0.1 www.symantec.com
    127.0.0.1 networkassociates.com
    127.0.0.1 secure.nai.com
    127.0.0.1 downloads1.kaspersky-labs.com
    127.0.0.1 downloads2.kaspersky-labs.com
    127.0.0.1 downloads3.kaspersky-labs.com
    127.0.0.1 downloads4.kaspersky-labs.com
    127.0.0.1 downloads-us1.kaspersky-labs.com
    127.0.0.1 downloads-eu1.kaspersky-labs.com
    127.0.0.1 kaspersky-labs.com
    127.0.0.1 www.networkassociates.com
    127.0.0.1 us.mcafee.com
    127.0.0.1 f-secure.com
    127.0.0.1 avp.com
    127.0.0.1 www.sophos.com
    127.0.0.1 sophos.com
    127.0.0.1 www.ca.com
    127.0.0.1 ca.com
    127.0.0.1 securityresponse.symantec.com
    127.0.0.1 symantec.com
    127.0.0.1 mast.mcafee.com
    127.0.0.1 my-etrust.com
    127.0.0.1 www.kaspersky.com
    127.0.0.1 www.f-secure.com
    127.0.0.1 dispatch.mcafee.com
    127.0.0.1 update.symantec.com
    127.0.0.1 nai.com
    127.0.0.1 www.nai.com
    127.0.0.1 liveupdate.symantec.com
    127.0.0.1 customer.symantec.com
    127.0.0.1 rads.mcafee.com
    127.0.0.1 trendmicro.com
    127.0.0.1 liveupdate.symantecliveupdate.com
    127.0.0.1 www.mcafee.com
    127.0.0.1 mcafee.com
    127.0.0.1 viruslist.com
    127.0.0.1 www.my-etrust.com
    127.0.0.1 download.mcafee.com
    127.0.0.1 updates.symantec.com
    127.0.0.1 kaspersky.com
    127.0.0.1 www.trendmicro.com
    127.0.0.1 www.pandasoftware.de

  9. Downloads two files from a predefined Web site as:
    • C:\windows\eex.exe
    • C:\windows\eex2.exe

      or:
    • C:\winnt\eex.exe
    • C:\winnt\eex2.exe

  10. Attempts to copy itself as the following, if any of the paths exists:
    • C:\My Shared Folder\ICQ 8.0.exe
    • C:\My Shared Folder\PS2 Emulator.exe
    • C:\My Shared Folder\Hello.exe
    • C:\My Shared Folder\Hello.pif
    • C:\My Shared Folder\opera 7.7.exe
    • C:\My Shared Folder\In Da Club.exe
    • C:\My Shared Folder\WinZip.exe
    • C:\My Shared Folder\Winrar.exe
    • C:\My Shared Folder\WinAMp.exe
    • C:\My Shared Folder\1.exe
    • C:\My Shared Folder\Hot Sex Photos.exe
    • C:\My Shared Folder\Hot XxX Photos.exe
    • C:\My Shared Folder\XXX hardcore.exe
    • C:\My Shared Folder\ACDSee.exe
    • C:\My Shared Folder\Matrix.exe
    • C:\My Shared Folder\SexXx.exe
    • C:\My Shared Folder\netsky removal tool.exe
    • C:\My Shared Folder\anal,sex.exe
    • C:\My Shared Folder\Norton Anti Virus Crack.exe
    • C:\My Shared Folder\Mcafee Crack.exe
    • C:\My Shared Folder\Macfee Anti Virus.exe
    • C:\My Shared Folder\Beagle Removal Tool.exe
    • C:\My Shared Folder\Mydoom Removal Tool.exe
    • C:\My Shared Folder\ICQ.exe
    • C:\My Shared Folder\Kaspersky Antivirus 5.0.exe
    • C:\My Shared Folder\Norton Anti Virus 2004.exe
    • C:\My Shared Folder\KAV 5.0.exe
    • C:\My Shared Folder\Sex.exe
    • C:\My Shared Folder\Nero.exe
    • C:\My Shared Folder\Microsoft Office 2003 Crack.exe
    • C:\Program Files\Limewire\Shared\ICQ 8.0.exe
    • C:\Program Files\Limewire\Shared\PS2 Emulator.exe
    • C:\Program Files\Limewire\Shared\Hello.exe
    • C:\Program Files\Limewire\Shared\Hello.pif
    • C:\Program Files\Limewire\Shared\opera 7.7.exe
    • C:\Program Files\Limewire\Shared\In Da Club.exe
    • C:\Program Files\Limewire\Shared\WinZip.exe
    • C:\Program Files\Limewire\Shared\Winrar.exe
    • C:\Program Files\Limewire\Shared\WinAMp.exe
    • C:\Program Files\Limewire\Shared\1.exe
    • C:\Program Files\Limewire\Shared\Hot Sex Photos.exe
    • C:\Program Files\Limewire\Shared\Hot XxX Photos.exe
    • C:\Program Files\Limewire\Shared\XXX hardcore.exe
    • C:\Program Files\Limewire\Shared\ACDSee.exe
    • C:\Program Files\Limewire\Shared\Matrix.exe
    • C:\Program Files\Limewire\Shared\SexXx.exe
    • C:\Program Files\Limewire\Shared\netsky removal tool.exe
    • C:\Program Files\Limewire\Shared\anal,sex.exe
    • C:\Program Files\Limewire\Shared\Norton Anti Virus Crack.exe
    • C:\Program Files\Limewire\Shared\Mcafee Crack.exe
    • C:\Program Files\Limewire\Shared\Macfee Anti Virus.exe
    • C:\Program Files\Limewire\Shared\Beagle Removal Tool.exe
    • C:\Program Files\Limewire\Shared\Mydoom Removal Tool.exe
    • C:\Program Files\Limewire\Shared\ICQ.exe
    • C:\Program Files\Limewire\Shared\Kaspersky Antivirus 5.0.exe
    • C:\Program Files\Limewire\Shared\Norton Anti Virus 2004.exe
    • C:\Program Files\Limewire\Shared\KAV 5.0.exe
    • C:\Program Files\Limewire\Shared\Sex.exe
    • C:\Program Files\Limewire\Shared\Nero.exe
    • C:\Program Files\Limewire\Shared\Microsoft Office 2003 Crack.exe
    • C:\Program Files\Edonkey2000\Incoming\ICQ 8.0.exe
    • C:\Program Files\Edonkey2000\Incoming\PS2 Emulator.exe
    • C:\Program Files\Edonkey2000\Incoming\Hello.exe
    • C:\Program Files\Edonkey2000\Incoming\Hello.pif
    • C:\Program Files\Edonkey2000\Incoming\opera 7.7.exe
    • C:\Program Files\Edonkey2000\Incoming\In Da Club.exe
    • C:\Program Files\Edonkey2000\Incoming\WinZip.exe
    • C:\Program Files\Edonkey2000\Incoming\Winrar.exe
    • C:\Program Files\Edonkey2000\Incoming\WinAMp.exe
    • C:\Program Files\Edonkey2000\Incoming\1.exe
    • C:\Program Files\Edonkey2000\Incoming\Hot Sex Photos.exe
    • C:\Program Files\Edonkey2000\Incoming\Hot XxX Photos.exe
    • C:\Program Files\Edonkey2000\Incoming\XXX hardcore.exe
    • C:\Program Files\Edonkey2000\Incoming\ACDSee.exe
    • C:\Program Files\Edonkey2000\Incoming\Matrix.exe
    • C:\Program Files\Edonkey2000\Incoming\SexXx.exe
    • C:\Program Files\Edonkey2000\Incoming\netsky removal tool.exe
    • C:\Program Files\Edonkey2000\Incoming\anal,sex.exe
    • C:\Program Files\Edonkey2000\Incoming\Norton Anti Virus Crack.exe
    • C:\Program Files\Edonkey2000\Incoming\Mcafee Crack.exe
    • C:\Program Files\Edonkey2000\Incoming\Macfee Anti Virus.exe
    • C:\Program Files\Edonkey2000\Incoming\Beagle Removal Tool.exe
    • C:\Program Files\Edonkey2000\Incoming\Mydoom Removal Tool.exe
    • C:\Program Files\Edonkey2000\Incoming\ICQ.exe
    • C:\Program Files\Edonkey2000\Incoming\Kaspersky Antivirus 5.0.exe
    • C:\Program Files\Edonkey2000\Incoming\Norton Anti Virus 2004.exe
    • C:\Program Files\Edonkey2000\Incoming\KAV 5.0.exe
    • C:\Program Files\Edonkey2000\Incoming\Sex.exe
    • C:\Program Files\Edonkey2000\Incoming\Nero.exe
    • C:\Program Files\Edonkey2000\Incoming\Microsoft Office 2003 Crack.exe
    • C:\Program Files\Gnucleus\Downloads\ICQ 8.0.exe
    • C:\Program Files\Gnucleus\Downloads\PS2 Emulator.exe
    • C:\Program Files\Gnucleus\Downloads\Hello.exe
    • C:\Program Files\Gnucleus\Downloads\Hello.pif
    • C:\Program Files\Gnucleus\Downloads\opera 7.7.exe
    • C:\Program Files\Gnucleus\Downloads\In Da Club.exe
    • C:\Program Files\Gnucleus\Downloads\WinZip.exe
    • C:\Program Files\Gnucleus\Downloads\Winrar.exe
    • C:\Program Files\Gnucleus\Downloads\WinAMp.exe
    • C:\Program Files\Gnucleus\Downloads\1.exe
    • C:\Program Files\Gnucleus\Downloads\Hot Sex Photos.exe
    • C:\Program Files\Gnucleus\Downloads\Hot XxX Photos.exe
    • C:\Program Files\Gnucleus\Downloads\XXX hardcore.exe
    • C:\Program Files\Gnucleus\Downloads\ACDSee.exe
    • C:\Program Files\Gnucleus\Downloads\Matrix.exe
    • C:\Program Files\Gnucleus\Downloads\SexXx.exe
    • C:\Program Files\Gnucleus\Downloads\netsky removal tool.exe
    • C:\Program Files\Gnucleus\Downloads\anal,sex.exe
    • C:\Program Files\Gnucleus\Downloads\Norton Anti Virus Crack.exe
    • C:\Program Files\Gnucleus\Downloads\Mcafee Crack.exe
    • C:\Program Files\Gnucleus\Downloads\Macfee Anti Virus.exe
    • C:\Program Files\Gnucleus\Downloads\Beagle Removal Tool.exe
    • C:\Program Files\Gnucleus\Downloads\Mydoom Removal Tool.exe
    • C:\Program Files\Gnucleus\Downloads\ICQ.exe
    • C:\Program Files\Gnucleus\Downloads\Kaspersky Antivirus 5.0.exe
    • C:\Program Files\Gnucleus\Downloads\Norton Anti Virus 2004.exe
    • C:\Program Files\Gnucleus\Downloads\KAV 5.0.exe
    • C:\Program Files\Gnucleus\Downloads\Sex.exe
    • C:\Program Files\Gnucleus\Downloads\Nero.exe
    • C:\Program Files\Gnucleus\Downloads\Microsoft Office 2003 Crack.exe
    • C:\Program Files\Icq\Shared Files\ICQ 8.0.exe
    • C:\Program Files\Icq\Shared Files\PS2 Emulator.exe
    • C:\Program Files\Icq\Shared Files\Hello.exe
    • C:\Program Files\Icq\Shared Files\Hello.pif
    • C:\Program Files\Icq\Shared Files\opera 7.7.exe
    • C:\Program Files\Icq\Shared Files\In Da Club.exe
    • C:\Program Files\Icq\Shared Files\WinZip.exe
    • C:\Program Files\Icq\Shared Files\Winrar.exe
    • C:\Program Files\Icq\Shared Files\WinAMp.exe
    • C:\Program Files\Icq\Shared Files\1.exe
    • C:\Program Files\Icq\Shared Files\Hot Sex Photos.exe
    • C:\Program Files\Icq\Shared Files\Hot XxX Photos.exe
    • C:\Program Files\Icq\Shared Files\XXX hardcore.exe
    • C:\Program Files\Icq\Shared Files\ACDSee.exe
    • C:\Program Files\Icq\Shared Files\Matrix.exe
    • C:\Program Files\Icq\Shared Files\SexXx.exe
    • C:\Program Files\Icq\Shared Files\netsky removal tool.exe
    • C:\Program Files\Icq\Shared Files\anal,sex.exe
    • C:\Program Files\Icq\Shared Files\Norton Anti Virus Crack.exe
    • C:\Program Files\Icq\Shared Files\Mcafee Crack.exe
    • C:\Program Files\Icq\Shared Files\Macfee Anti Virus.exe
    • C:\Program Files\Icq\Shared Files\Beagle Removal Tool.exe
    • C:\Program Files\Icq\Shared Files\Mydoom Removal Tool.exe
    • C:\Program Files\Icq\Shared Files\ICQ.exe
    • C:\Program Files\Icq\Shared Files\Kaspersky Antivirus 5.0.exe
    • C:\Program Files\Icq\Shared Files\Norton Anti Virus 2004.exe
    • C:\Program Files\Icq\Shared Files\KAV 5.0.exe
    • C:\Program Files\Icq\Shared Files\Sex.exe
    • C:\Program Files\Icq\Shared Files\Nero.exe
    • C:\Program Files\Icq\Shared Files\Microsoft Office 2003 Crack.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\ICQ 8.0.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\PS2 Emulator.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Hello.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Hello.pif
    • C:\Program Files\Kazaa Lite\My Shared Folder\opera 7.7.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\In Da Club.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\WinZip.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Winrar.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\WinAMp.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\1.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Hot Sex Photos.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Hot XxX Photos.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\XXX hardcore.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\ACDSee.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Matrix.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\SexXx.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\netsky removal tool.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\anal,sex.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Norton Anti Virus Crack.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Mcafee Crack.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Macfee Anti Virus.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Beagle Removal Tool.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Mydoom Removal Tool.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\ICQ.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Kaspersky Antivirus 5.0.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Norton Anti Virus 2004.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\KAV 5.0.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Sex.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Nero.exe
    • C:\Program Files\Kazaa Lite\My Shared Folder\Microsoft Office 2003 Crack.exe
    • C:\Program Files\Kazaa\My Shared Folder\ICQ 8.0.exe
    • C:\Program Files\Kazaa\My Shared Folder\PS2 Emulator.exe
    • C:\Program Files\Kazaa\My Shared Folder\Hello.exe
    • C:\Program Files\Kazaa\My Shared Folder\Hello.pif
    • C:\Program Files\Kazaa\My Shared Folder\opera 7.7.exe
    • C:\Program Files\Kazaa\My Shared Folder\In Da Club.exe
    • C:\Program Files\Kazaa\My Shared Folder\WinZip.exe
    • C:\Program Files\Kazaa\My Shared Folder\Winrar.exe
    • C:\Program Files\Kazaa\My Shared Folder\WinAMp.exe
    • C:\Program Files\Kazaa\My Shared Folder\1.exe
    • C:\Program Files\Kazaa\My Shared Folder\Hot Sex Photos.exe
    • C:\Program Files\Kazaa\My Shared Folder\Hot XxX Photos.exe
    • C:\Program Files\Kazaa\My Shared Folder\XXX hardcore.exe
    • C:\Program Files\Kazaa\My Shared Folder\ACDSee.exe
    • C:\Program Files\Kazaa\My Shared Folder\Matrix.exe
    • C:\Program Files\Kazaa\My Shared Folder\SexXx.exe
    • C:\Program Files\Kazaa\My Shared Folder\netsky removal tool.exe
    • C:\Program Files\Kazaa\My Shared Folder\anal,sex.exe
    • C:\Program Files\Kazaa\My Shared Folder\Norton Anti Virus Crack.exe
    • C:\Program Files\Kazaa\My Shared Folder\Mcafee Crack.exe
    • C:\Program Files\Kazaa\My Shared Folder\Macfee Anti Virus.exe
    • C:\Program Files\Kazaa\My Shared Folder\Beagle Removal Tool.exe
    • C:\Program Files\Kazaa\My Shared Folder\Mydoom Removal Tool.exe
    • C:\Program Files\Kazaa\My Shared Folder\ICQ.exe
    • C:\Program Files\Kazaa\My Shared Folder\Kaspersky Antivirus 5.0.exe
    • C:\Program Files\Kazaa\My Shared Folder\Norton Anti Virus 2004.exe
    • C:\Program Files\Kazaa\My Shared Folder\KAV 5.0.exe
    • C:\Program Files\Kazaa\My Shared Folder\Sex.exe
    • C:\Program Files\Kazaa\My Shared Folder\Nero.exe
    • C:\Program Files\Kazaa\My Shared Folder\Microsoft Office 2003 Crack.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\ICQ 8.0.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\PS2 Emulator.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Hello.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Hello.pif
    • C:\Program Files\Gnucleus\Downloads\Incoming\opera 7.7.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\In Da Club.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\WinZip.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Winrar.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\WinAMp.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\1.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Hot Sex Photos.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Hot XxX Photos.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\XXX hardcore.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\ACDSee.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Matrix.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\SexXx.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\netsky removal tool.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\anal,sex.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Norton Anti Virus Crack.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Mcafee Crack.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Macfee Anti Virus.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Beagle Removal Tool.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Mydoom Removal Tool.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\ICQ.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Kaspersky Antivirus 5.0.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Norton Anti Virus 2004.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\KAV 5.0.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Sex.exe
    • C:\Program Files\Gnucleus\Downloads\Incoming\Nero.exe

  11. Modifies %ProgramFiles%\mIRC\script.ini in an attempt to send itself to other IRC users who connect at the same IRC channel.

  12. Attempts to copy itself as the following, if any of the paths exists:
    • C:\Winnt\Profiles\Default User\Start menu\Programs\Startup\patch31345.exe
    • C:\Winnt\Profiles\Administrator\Start menu\Programs\Startup\patch31345.exe
    • C:\Winnt\Profiles\All Users\Start menu\Programs\Startup\patch31345.exe
    • C:\Documents and Settings\Default User\Start menu\Programs\Startup\patch31345.exe
    • C:\Documents and Settings\Administrator\Start menu\Programs\Startup\patch31345.exe
    • C:\Documents and Settings\All Users\Start menu\Programs\Startup\patch31345.exe
    • C:\Windows\Start menu\Programs\Startup\patch31345.exe
    • C:\WinMe\Start menu\Programs\Startup\patch31345.exe
    • C:\Win95\Start menu\Programs\Startup\patch31345.exe
    • C:\Win98\Start menu\Programs\Startup\patch31345.exe

  13. Displays another fake message box:




  14. Terminates the following processes:
    • TASKMGR.EXE
    • JAMMER2ND.EXE
    • FirewallSvr.exe
    • Kasperskyaveng.exe
    • VisualGuard.exe
    • AVprotect9x.exe
    • AVprotect.exe
    • avpguard.exe
    • fooding.exe
    • maja.exe
    • avguard.exe
    • winlogon.exe
    • csrss.exe
    • wserver.exe
    • QDCFSF.EXE
    • OGRC.EXE
    • CSINJECT.EXE
    • CCREGVFY.EXE
    • F-AGOBOT.EXE
    • HIJACKTHIS.EXE
    • _AVPM.EXE
    • _AVPCC.EXE
    • _AVP32.EXE
    • ZONEALARM.EXE
    • ZONALM2601.EXE
    • ZATUTOR.EXE
    • ZAPSETUP3001.EXE
    • ZAPRO.EXE
    • XPF202EN.EXE
    • WYVERNWORKSFIREWALL.EXE
    • WUPDT.EXE
    • WUPDATER.EXE
    • WSBGATE.EXE
    • WRCTRL.EXE
    • WRADMIN.EXE
    • WNT.EXE
    • WNAD.EXE
    • WKUFIND.EXE
    • WINUPDATE.EXE
    • WINTSK32.EXE
    • WINSTART001.EXE
    • WINSTART.EXE
    • WINSSK32.EXE
    • WINSERVN.EXE
    • WINRECON.EXE
    • WINPPR32.EXE
    • WINNET.EXE
    • WINMAIN.EXE
    • WINLOGIN.EXE
    • WININITX.EXE
    • WININIT.EXE
    • WININETD.EXE
    • WINDOWS.EXE
    • WINDOW.EXE
    • WINACTIVE.EXE
    • WIN32US.EXE
    • WIN32.EXE
    • WIN-BUGSFIX.EXE
    • WIMMUN32.EXE
    • WHOSWATCHINGME.EXE
    • WGFE95.EXE
    • WFINDV32.EXE
    • WEBTRAP.EXE
    • WEBSCANX.EXE
    • WEBDAV.EXE
    • WATCHDOG.EXE
    • W9X.EXE
    • W32DSM89.EXE
    • VSWINPERSE.EXE
    • VSWINNTSE.EXE
    • VSWIN9XE.EXE
    • VSSTAT.EXE
    • VSMON.EXE
    • VSMAIN.EXE
    • VSISETUP.EXE
    • VSHWIN32.EXE
    • VSECOMR.EXE
    • VSCHED.EXE
    • VSCENU6.02D30.EXE
    • VSCAN40.EXE
    • VPTRAY.EXE
    • VPFW30S.EXE
    • VPC42.EXE
    • VPC32.EXE
    • VNPC3000.EXE
    • VNLAN300.EXE
    • VIRUSMDPERSONALFIREWALL.EXE
    • VIR-HELP.EXE
    • VFSETUP.EXE
    • VETTRAY.EXE
    • VET95.EXE
    • VET32.EXE
    • VCSETUP.EXE
    • VBWINNTW.EXE
    • VBWIN9X.EXE
    • VBUST.EXE
    • VBCONS.EXE
    • VBCMSERV.EXE
    • UTPOST.EXE
    • UPGRAD.EXE
    • UPDATE.EXE
    • UPDAT.EXE
    • UNDOBOOT.EXE
    • TVTMD.EXE
    • TVMD.EXE
    • TSADBOT.EXE
    • TROJANTRAP3.EXE
    • TRJSETUP.EXE
    • TRJSCAN.EXE
    • TRICKLER.EXE
    • TRACERT.EXE
    • TITANINXP.EXE
    • TITANIN.EXE
    • TGBOB.EXE
    • TFAK5.EXE
    • TFAK.EXE
    • TEEKIDS.EXE
    • TDS2-NT.EXE
    • TDS2-98.EXE
    • TDS-3.EXE
    • TCM.EXE
    • TCA.EXE
    • TC.EXE
    • TBSCAN.EXE
    • TAUMON.EXE
    • TASKMON.EXE
    • TASKMO.EXE
    • TASKMG.EXE
    • SYSUPD.EXE
    • SYSTEM32.EXE
    • NDETECT.EXE
    • SYSTEM.EXE
    • SYSEDIT.EXE
    • SYMPROXYSVC.EXE
    • SWEEPNET.SWEEPSRV.SYS.SWNETSUP.EXE
    • SWEEP95.EXE
    • SVSHOST.EXE
    • SVCHOSTS.EXE
    • SVCHOSTC.EXE
    • SVC.EXE
    • SUPPORTER5.EXE
    • SUPPORT.EXE
    • SUPFTRL.EXE
    • STCLOADER.EXE
    • START.EXE
    • ST2.EXE
    • SSG_4104.EXE
    • SSGRATE.EXE
    • SS3EDIT.EXE
    • SRNG.EXE
    • SREXE.EXE
    • SPYXX.EXE
    • SPOOLSV32.EXE
    • SPOOLCV.EXE
    • SPOLER.EXE
    • SPHINX.EXE
    • SPF.EXE
    • SPERM.EXE
    • SOFI.EXE
    • SOAP.EXE
    • SMSS32.EXE
    • SMS.EXE
    • SMC.EXE
    • SHOWBEHIND.EXE
    • SHN.EXE
    • SHELLSPYINSTALL.EXE
    • SYMTRAY.EXE
    • SH.EXE
    • SGSSFW32.EXE
    • SFC.EXE
    • SETUP_FLOWPROTECTOR_US.EXE
    • SETUPVAMEEVAL.EXE
    • SERVLCES.EXE
    • SERVLCE.EXE
    • SERVICE.EXE
    • SERV95.EXE
    • SD.EXE
    • SCVHOST.EXE
    • SCRSVR.EXE
    • SCRSCAN.EXE
    • SCANPM.EXE
    • SCAN95.EXE
    • SCAN32.EXE
    • SCAM32.EXE
    • SC.EXE
    • SBSERV.EXE
    • SAVENOW.EXE
    • SAVE.EXE
    • SAHAGENT.EXE
    • SAFEWEB.EXE
    • RUXDLL32.EXE
    • RUNDLL16.EXE
    • RUNDLL.EXE
    • RUN32DLL.EXE
    • RULAUNCH.EXE
    • RTVSCN95.EXE
    • RTVSCAN.EXE
    • RSHELL.EXE
    • RRGUARD.EXE
    • RESCUE32.EXE
    • RESCUE.EXE
    • REGEDT32.EXE
    • REGEDIT.EXE
    • REGED.EXE
    • REALMON.EXE
    • RCSYNC.EXE
    • RB32.EXE
    • RAY.EXE
    • RAV8WIN32ENG.EXE
    • RAV7WIN.EXE
    • RAV7.EXE
    • RAPAPP.EXE
    • QSERVER.EXE
    • QCONSOLE.EXE
    • PVIEW95.EXE
    • PUSSY.EXE
    • PURGE.EXE
    • PSPF.EXE
    • PROTECTX.EXE
    • PROPORT.EXE
    • PROGRAMAUDITOR.EXE
    • PROCEXPLORERV1.0.EXE
    • OBC.EXE
    • PROCESSMONITOR.EXE
    • PROCDUMP.EXE
    • PRMVR.EXE
    • PRMT.EXE
    • PRIZESURFER.EXE
    • PPVSTOP.EXE
    • PPTBC.EXE
    • PPINUPDT.EXE
    • POWERSCAN.EXE
    • PORTMONITOR.EXE
    • PORTDETECTIVE.EXE
    • POPSCAN.EXE
    • POPROXY.EXE
    • POP3TRAP.EXE
    • PLATIN.EXE
    • PINGSCAN.EXE
    • PGMONITR.EXE
    • PFWADMIN.EXE
    • PF2.EXE
    • PERSWF.EXE
    • PERSFW.EXE
    • PERISCOPE.EXE
    • PENIS.EXE
    • PDSETUP.EXE
    • PCSCAN.EXE
    • PCIP10117_0.EXE
    • PCFWALLICON.EXE
    • PCDSETUP.EXE
    • PCCWIN98.EXE
    • PCCWIN97.EXE
    • PCCNTMON.EXE
    • PCCIOMON.EXE
    • PCC2K_76_1436.EXE
    • PCC2002S902.EXE
    • PAVW.EXE
    • PAVSCHED.EXE
    • PAVPROXY.EXE
    • PAVCL.EXE
    • PATCH.EXE
    • PANIXK.EXE
    • PADMIN.EXE
    • OUTPOSTPROINSTALL.EXE
    • OUTPOSTINSTALL.EXE
    • OUTPOST.EXE
    • OTFIX.EXE
    • OSTRONET.EXE
    • OPTIMIZE.EXE
    • ONSRVR.EXE
    • OLLYDBG.EXE
    • NWTOOL16.EXE
    • NWSERVICE.EXE
    • NWINST4.EXE
    • NVSVC32.EXE
    • NVC95.EXE
    • NVARCH16.EXE
    • NUPGRADE.EXE
    • NUI.EXE
    • NTXconfig.EXE
    • NTVDM.EXE
    • NTRTSCAN.EXE
    • NT.EXE
    • NSUPDATE.EXE
    • NSTASK32.EXE
    • NSSYS32.EXE
    • NSCHED32.EXE
    • NPSSVC.EXE
    • NPSCHECK.EXE
    • NPROTECT.EXE
    • NPFMESSENGER.EXE
    • NPF40_TW_98_NT_ME_2K.EXE
    • NOTSTART.EXE
    • NORTON_INTERNET_SECU_3.0_407.EXE
    • NORMIST.EXE
    • NOD32.EXE
    • NMAIN.EXE
    • NISUM.EXE
    • NISSERV.EXE
    • NETUTILS.EXE
    • NETSTAT.EXE
    • NETSPYHUNTER-1.2.EXE
    • NETSCANPRO.EXE
    • NETMON.EXE
    • NETINFO.EXE
    • NETD32.EXE
    • NETARMOR.EXE
    • NEOWATCHLOG.EXE
    • NEOMONITOR.EXE
    • NDD32.EXE
    • NCINST4.EXE
    • NC2000.EXE
    • NAVWNT.EXE
    • NAVW32.EXE
    • NAVSTUB.EXE
    • NAVNT.EXE
    • NAVLU32.EXE
    • NAVENGNAVEX15.NAVLU32.EXE
    • NAVDX.EXE
    • NAVAPW32.EXE
    • NAVAPSVC.EXE
    • NAVAP.NAVAPSVC.EXE
    • AUTO-PROTECT.NAV80TRY.EXE
    • NAV.EXE
    • N32SCANW.EXE
    • MWATCH.EXE
    • MU0311AD.EXE
    • MSVXD.EXE
    • MSSYS.EXE
    • MSSMMC32.EXE
    • MSMSGRI32.EXE
    • MSMGT.EXE
    • MSLAUGH.EXE
    • MSINFO32.EXE
    • MSIEXEC16.EXE
    • MSDOS.EXE
    • MSDM.EXE
    • MSCONFIG.EXE
    • MSCMAN.EXE
    • MSCCN32.EXE
    • MSCACHE.EXE
    • MSBLAST.EXE
    • MSBB.EXE
    • MSAPP.EXE
    • MRFLUX.EXE
    • MPFTRAY.EXE
    • MPFSERVICE.EXE
    • MPFAGENT.EXE
    • MOSTAT.EXE
    • MOOLIVE.EXE
    • MONITOR.EXE
    • MMOD.EXE
    • MINILOG.EXE
    • MGUI.EXE
    • MGHTML.EXE
    • MGAVRTE.EXE
    • MGAVRTCL.EXE
    • MFWENG3.02D30.EXE
    • MFW2EN.EXE
    • MFIN32.EXE
    • MD.EXE
    • MCVSSHLD.EXE
    • MCVSRTE.EXE
    • MCUPDATE.EXE
    • MCTOOL.EXE
    • MCSHIELD.EXE
    • MCMNHDLR.EXE
    • MCAGENT.EXE
    • MAPISVC32.EXE
    • LUSPT.EXE
    • LUINIT.EXE
    • LUCOMSERVER.EXE
    • LUAU.EXE
    • LUALL.EXE
    • LSETUP.EXE
    • LORDPE.EXE
    • LOOKOUT.EXE
    • LOCKDOWN2000.EXE
    • LOCKDOWN.EXE
    • LOCALNET.EXE
    • LOADER.EXE
    • LNETINFO.EXE
    • LDSCAN.EXE
    • LDPROMENU.EXE
    • LDPRO.EXE
    • LDNETMON.EXE
    • LAUNCHER.EXE
    • KILLPROCESSSETUP161.EXE
    • KERNEL32.EXE
    • KERIO-WRP-421-EN-WIN.EXE
    • KERIO-WRL-421-EN-WIN.EXE
    • KERIO-PF-213-EN-WIN.EXE
    • KEENVALUE.EXE
    • KAZZA.EXE
    • KAVPF.EXE
    • KAVPERS40ENG.EXE
    • KAVLITE40ENG.EXE
    • JEDI.EXE
    • JDBGMRG.EXE
    • JAMMER.EXE
    • ISTSVC.EXE
    • ISRV95.EXE
    • ISASS.EXE
    • IRIS.EXE
    • IPARMOR.EXE
    • IOMON98.EXE
    • INTREN.EXE
    • INTDEL.EXE
    • INIT.EXE
    • INFWIN.EXE
    • INFUS.EXE
    • INETLNFO.EXE
    • IFW2000.EXE
    • IFACE.EXE
    • IEXPLORER.EXE
    • IEDRIVER.EXE
    • IEDLL.EXE
    • IDLE.EXE
    • ICSUPPNT.EXE
    • ICSUPP95.EXE
    • ICMON.EXE
    • ICLOADNT.EXE
    • ICLOAD95.EXE
    • IBMAVSP.EXE
    • IBMASN.EXE
    • IAMSTATS.EXE
    • IAMSERV.EXE
    • IAMAPP.EXE
    • HXIUL.EXE
    • HXDL.EXE
    • HWPE.EXE
    • HTPATCH.EXE
    • HTLOG.EXE
    • HOTPATCH.EXE
    • HOTACTIO.EXE
    • HBSRV.EXE
    • HBINST.EXE
    • HACKTRACERSETUP.EXE
    • GUARDDOG.EXE
    • GUARD.EXE
    • GMT.EXE
    • GENERICS.EXE
    • GBPOLL.EXE
    • GBMENU.EXE
    • GATOR.EXE
    • FSMB32.EXE
    • FSMA32.EXE
    • FSM32.EXE
    • FSGK32.EXE
    • FSAV95.EXE
    • FSAV530WTBYB.EXE
    • FSAV530STBYB.EXE
    • FSAV32.EXE
    • FSAV.EXE
    • FSAA.EXE
    • FRW.EXE
    • FPROT.EXE
    • FP-WIN_TRIAL.EXE
    • FP-WIN.EXE
    • FNRB32.EXE
    • FLOWPROTECTOR.EXE
    • FIREWALL.EXE
    • FINDVIRU.EXE
    • FIH32.EXE
    • FCH32.EXE
    • FAST.EXE
    • FAMEH32.EXE
    • F-STOPW.EXE
    • F-PROT95.EXE
    • F-PROT.EXE
    • F-AGNT95.EXE
    • EXPLORE.EXE
    • EXPERT.EXE
    • EXE.AVXW.EXE
    • EXANTIVIRUS-CNET.EXE
    • EVPN.EXE
    • ETRUSTCIPE.EXE
    • ETHEREAL.EXE
    • ESPWATCH.EXE
    • ESCANV95.EXE
    • ESCANHNT.EXE
    • ESCANH95.EXE
    • ESAFE.EXE
    • ENT.EXE
    • EMSW.EXE
    • EFPEADM.EXE
    • ECENGINE.EXE
    • DVP95_0.EXE
    • DVP95.EXE
    • DSSAGENT.EXE
    • DRWEBUPW.EXE
    • DRWEB32.EXE
    • DRWATSON.EXE
    • DPPS2.EXE
    • DPFSETUP.EXE
    • DPF.EXE
    • DOORS.EXE
    • DLLREG.EXE
    • DLLCACHE.EXE
    • DIVX.EXE
    • DEPUTY.EXE
    • DEFWATCH.EXE
    • DEFSCANGUI.EXE
    • DEFALERT.EXE
    • DCOMX.EXE
    • DATEMANAGER.EXE
    • Claw95.EXE
    • CWNTDWMO.EXE
    • CWNB181.EXE
    • CV.EXE
    • CTRL.EXE
    • CPFNT206.EXE
    • CPF9X206.EXE
    • CPD.EXE
    • CONNECTIONMONITOR.EXE
    • CMON016.EXE
    • CMGRDIAN.EXE
    • CMESYS.EXE
    • CMD32.EXE
    • CLICK.EXE
    • CLEANPC.EXE
    • CLEANER3.EXE
    • CLEANER.EXE
    • CLEAN.EXE
    • CLAW95CF.EXE
    • CFINET32.EXE
    • CFINET.EXE
    • CFIAUDIT.EXE
    • CFIADMIN.EXE
    • CFGWIZ.EXE
    • CFD.EXE
    • CDP.EXE
    • CCPXYSVC.EXE
    • CCEVTMGR.EXE
    • CCAPP.EXE
    • BVT.EXE
    • BUNDLE.EXE
    • BS120.EXE
    • BRASIL.EXE
    • BPC.EXE
    • BORG2.EXE
    • BOOTWARN.EXE
    • BOOTCONF.EXE
    • BLSS.EXE
    • BLACKICE.EXE
    • BLACKD.EXE
    • BISP.EXE
    • BIPCPEVALSETUP.EXE
    • BIPCP.EXE
    • BIDSERVER.EXE
    • BIDEF.EXE
    • BELT.EXE
    • BEAGLE.EXE
    • BD_PROFESSIONAL.EXE
    • BARGAINS.EXE
    • BACKWEB.EXE
    • AVXQUAR.EXE
    • AVXMONITORNT.EXE
    • AVXMONITOR9X.EXE
    • AVWUPSRV.EXE
    • AVWUPD32.EXE
    • AVWUPD.EXE
    • AVWINNT.EXE
    • AVWIN95.EXE
    • AVSYNMGR.EXE
    • AVSCHED32.EXE
    • AVPUPD.EXE
    • AVPTC32.EXE
    • AVPM.EXE
    • AVPDOS32.EXE
    • AVPCC.EXE
    • AVP32.EXE
    • AVP.EXE
    • AVNT.EXE
    • AVLTMAIN.EXE
    • AVKWCTl9.EXE
    • AVKSERVICE.EXE
    • AVKSERV.EXE
    • AVKPOP.EXE
    • AVGW.EXE
    • AVGUARD.EXE
    • AVGSERV9.EXE
    • AVGSERV.EXE
    • AVGNT.EXE
    • AVGCTRL.EXE
    • AVGCC32.EXE
    • AVE32.EXE
    • AVCONSOL.EXE
    • AUTOUPDATE.EXE
    • AUTOTRACE.EXE
    • AUTODOWN.EXE
    • AUPDATE.EXE
    • AU.EXE
    • ATWATCH.EXE
    • ATUPDATER.EXE
    • ATRO55EN.EXE
    • ATGUARD.EXE
    • ATCON.EXE
    • ARR.EXE
    • APVXDWIN.EXE
    • APLICA32.EXE
    • APIMONITOR.EXE
    • ANTS.EXE
    • ANTIVIRUS.EXE
    • ANTI-TROJAN.EXE
    • AMON9X.EXE
    • ALOGSERV.EXE
    • ALEVIR.EXE
    • ALERTSVC.EXE
    • AGENTW.EXE
    • AGENTSVR.EXE
    • ADVXDWIN.EXE
    • ADAWARE.EXE
    • ACKWIN32.EXE

  15. Gathers email addresses from the Windows address book and from the files with the following extensions:
    • adb
    • asp
    • cfg
    • cgi
    • dbx
    • eml
    • htm
    • htm
    • jsp
    • mbx
    • mdx
    • msg
    • php
    • sht
    • tbb
    • uin
    • vbs
    • wsh
    • xls
    • xml

  16. Uses its own SMTP engine to send itself to the email addresses that it finds. The email has the following characteristics:

    From:
    (spoofed)

    Subject:
    (One of the following)

    • latest net security patch for your system
    • latest microsoft critical upgrade
    • latest internet critical upgrade
    • latest network critical pack
    • latest network critical patch
    • latest network critical update
    • latest net critical pack
    • latest net critical upgrade
    • latest net critical update
    • latest net critical patch
    • latest internet upgrade
    • latest microsoft upgrade
    • latest microsoft patch
    • latest security pack
    • latest microsoft security patch
    • latest network security update
    • latest internet update
    • latest net update
    • see the security patch
    • install the security update
    • download the important patch
    • download this important pack
    • Check these important update
    • see these security pack
    • use the security patch
    • use the security upgrade
    • use the security update
    • try the security pack
    • try the security patch
    • try the security upgrade
    • checkout the internet patch
    • check this internet pack
    • Checkout the Security Patch
    • Install these security upgrade
    • Install This Pack
    • Install This Patch
    • Install This Security Patch
    • Install That Secrity Pack
    • Try That Security Upgrade
    • Try That Security Patch
    • Try That Security Pack
    • apply this upgrade
    • apply this pack
    • apply this patch
    • Check that Internet Patch
    • Check that Internet Pack
    • Use This Security Internet Patch
    • Use These Security Internet Patch
    • Download This Important Pack
    • Apply This Important Pack
    • Install This Important Pack
    • Watch This internet Pack
    • Use This Important Pack
    • Try This Important Pack
    • Checkout This Important Pack
    • Check That Important Pack
    • Check This Important Pack
    • Current Upgrade
    • Current Update
    • Current Patch
    • Current Net Security Upgrade
    • Current Net Security Pack
    • Current Net Security Update
    • Current Internet Critical Patch
    • Current Network Critical Patch
    • Current Net Critical Patch
    • Current Internet Security Patch
    • Current Network Security Patch
    • Current Net Security Patch


      Message body:
      (One of the following)
    • Try this upgrade.
    • Here is the upgrade.
    • This is the latest patch for your system.
    • Download the patch.
    • Run this patch.
    • Check.
    • Dear User, Make your system clean and safe by patch your system with the latest updates.
    • Try this update now.
    • Try this patch now.
    • Check the attachment to apply the patch.
    • Update your system now.
    • Patch your system now.
    • You can check the attachment for more information.
    • this is the latest version of security update. just download and run attached file and click ok to msg boxes.
    • Check the attachment to patch your system for latest update.
    • Check the attachment.
    • Check the attachment for more information.
    • Checkout the attachment for more information.


      followed by:

      +++ Attachment: No Virus found

      followed by one of the following:

    • +++ Attachment: No Virus found
    • +++ MessageLabs AntiVirus - www.messagelabs.com
    • +++ Bitdefender AntiVirus - www.bitdefender.com
    • +++ MC-Afee AntiVirus - www.mcafee.com
    • +++ Kaspersky AntiVirus - www.kaspersky.com
    • +++ Panda AntiVirus - www.pandasoftware.com
    • +++ Norman AntiVirus - www.norman.com
    • +++ F-Secure AntiVirus - www.f-secure.com
    • +++ Norton AntiVirus - www.symantec.com


      Attachment:
      (One of the following)
    • pack_55775
    • pack28376
    • pack_4273
    • pack714283
    • pack_52864
    • pack_64237
    • pack83428
    • pack9162
    • pack7243
    • pack5648
    • pack_9876
    • pack86436
    • pack563
    • pack_42
    • pack742
    • pack83278
    • pack7152
    • pack_672
    • pack_3775
    • pack_7254
    • update_513
    • update_52345
    • update_623
    • update_5143
    • update_7234
    • update_6343
    • update_133
    • update_612
    • update12
    • update_5284
    • update_7252
    • update_5243
    • update_52784
    • update_7363
    • update926284
    • update653804
    • update9649063
    • update075399
    • update66964
    • patch_63494
    • patch_4308
    • patch1850
    • patch648954
    • patch_t385
    • patch06469
    • patch39075
    • patch_6379
    • patch_5358
    • patch_3358
    • patch0857
    • patch164789
    • patch6438
    • patch_642
    • patch_42
    • patch_63
    • patch_6857
    • patch_7547
    • patch_2
    • patch_1

      with .cmd, .cpl, .exe, .pif, or .scr as an extension.

      The attachment can also be a zip copy of the worm.

      The worm avoids sending itself to the email addresses that contain any of the following strings:

    • be_loyal
    • postmaster@
    • mozilla
    • utgers.ed
    • tanford.e
    • pgp
    • acketst
    • isc.o
    • isi.e
    • ripe.
    • arin.
    • sendmail
    • rfc-ed
    • ietf
    • iana
    • usenet
    • fido
    • linux
    • kernel
    • ibm.com
    • fsf.
    • gnu
    • mit.e
    • bsd
    • math
    • unix
    • berkeley
    • foo.
    • .mil
    • gov.
    • .gov
    • winzip
    • help@
    • gold-certs@
    • @micros
    • @microsoft
    • @messagelab
    • sopho
    • panda
    • icrosof
    • syma
    • @avp
    • account
    • google
    • certific
    • listserv
    • ntivi
    • support
    • microsoft
    • admin
    • page
    • the.bat
    • gold-certs
    • feste
    • submit
    • not
    • help
    • service
    • privacy
    • somebody
    • soft
    • contact
    • site
    • rating
    • bugs
    • you
    • your
    • someone
    • anyone
    • nothing
    • nobody
    • noone
    • webmaster
    • postmaster
    • samples
    • info
    • root
    • spm
    • spam
    • www
    • secur
    • abuse


Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

  • Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
  • Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
  • Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
  • Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
  • Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
  • Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
  • If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
  • Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
  • Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
  • Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
  • Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
  • If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
  • For further information on the terms used in this document, please refer to the Security Response glossary.

Writeup By: Yana Liu

Discovered: October 04, 2004
Updated: February 13, 2007 12:28:07 PM
Also Known As: Email-Worm.Win32.Mydoom.z [Kas, W32/Mydoom.ad@MM [McAfee], W32/MyDoom-Gen [Sophos], WORM_MYDOOM.AD [Trend Micro]
Type: Worm
Systems Affected: Windows


The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.

Important: On computers running Norton AntiVirus 2005 or later, the QuickScan tool will automatically search for and remove malicious threats when new virus definitions are downloaded. While every effort has been made to ensure that the QuickScan tool removes all the traces of a malicious threat from an infected computer, we advise that you confirm that all the files and registry entries have been removed. We recommend following the manual removal steps and deleting any threat-related files or registry entries remaining on the computer.

  1. Disable System Restore (Windows Me/XP).
  2. Re-install your Symantec antivirus program.
  3. Restart the computer in Safe mode or VGA mode.
  4. Update the virus definitions.
  5. Run a full system scan and delete all the files detected as W32.Mydoom.AD@mm.
  6. Delete the values that the worm adds to the registry.
For specific details on each of these steps, read the following instructions.


1. To disable System Restore (Windows Me/XP)
If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.

Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.

Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.

For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles:
Note:
When you are completely finished with the removal procedure and are satisfied that the threat has been removed, re-enable System Restore by following the instructions in the aforementioned documents.

For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article, "Antivirus Tools Cannot Clean Infected Files in the _Restore Folder ," Article ID: Q263455.

2. To re-install your Symantec antivirus program
As this virus attempts to remove the files and registry keys that your Symantec antivirus program uses, you may need to reinstall the program. If your Symantec antivirus program is not working properly, uninstall, and then reinstall it.


3. To restart the computer in Safe mode or VGA mode
Shut down the computer and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode or VGA mode.
  • For Windows 95, 98, Me, 2000, or XP users, restart the computer in Safe mode. For instructions, read the document, "How to start the computer in Safe Mode."
  • For Windows NT 4 users, restart the computer in VGA mode.

4. To update the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
  • Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to the Virus Definitions (LiveUpdate).
  • Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted daily. You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to the Virus Definitions (Intelligent Updater).

    The Intelligent Updater virus definitions are available: Read "How to update virus definition files using the Intelligent Updater" for detailed instructions.

Note: If you see an error, such as LU1418, when you try to run LiveUpdate and you cannot get the Web site hosting the Intelligent Updater, it is likely that the worm has modified the Hosts file. You can either download and install LiveUpdate 2.5, which can remove Symantec entries from that file, or you can edit it yourself. See the instructions for both in the "Additional Information" section below.

5. To scan for and delete the infected files
  1. Start your Symantec antivirus program and make sure that it is configured to scan all the files.
  2. Run a full system scan.
  3. If any files are detected as infected with W32.Mydoom.AD@mm, click Delete.


    Note:
    If your Symantec antivirus product reports that it cannot delete an infected file, Windows may be using the file. To fix this, run the scan in Safe mode. For instructions, read the document, "How to start the computer in Safe Mode." Once you have restarted in Safe mode, run the scan again.

    (After the files are deleted, you can leave the computer in Safe mode and proceed with section 4. When that is done, restart the computer in Normal mode.)

6. Delete the values that the worm adds to the registry

Important:
Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry ," for instructions.
  1. Click Start > Run.
  2. Type regedit

    Then click OK.

  3. Navigate to each of the following keys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete the values

    "AV Client" = "%System%\patch31345.exe"
    "AV Industry" = "%Windir%\patch31345.exe"

  5. Exit the Registry Editor.


Writeup By: Yana Liu