W32.Kedebe.D@mm

Printer Friendly Page

Discovered: June 12, 2005
Updated: February 13, 2007 12:40:18 PM
Also Known As: Win32.Kebede.E [Computer Assoc, Email-Worm.Win32.Kebede.f [Kas, W32/Kedebe-F [Sophos], WORM_KEDEBE.E [Trend Micro]
Type: Worm
Systems Affected: Windows


W32.Kedebe.D@mm is a mass-mailing worm that lowers security settings by ending processes and preventing access to security-related Web sites.

Antivirus Protection Dates

  • Initial Rapid Release version June 13, 2005
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version June 13, 2005
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date June 15, 2005

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

Writeup By: Rodney Andres

Discovered: June 12, 2005
Updated: February 13, 2007 12:40:18 PM
Also Known As: Win32.Kebede.E [Computer Assoc, Email-Worm.Win32.Kebede.f [Kas, W32/Kedebe-F [Sophos], WORM_KEDEBE.E [Trend Micro]
Type: Worm
Systems Affected: Windows


When W32.Kedebe.D@mm is executed, it performs the following actions:

  1. Copies itself as %System%\[CHARACTER][FILE NAME] where [CHARACTER] is a character repersented by 0xA0, which may be displayed differently depending on the operating system, and [FILE NAME] is one of the following:

    • nbtstat.exe
    • usrinit.exe
    • user.exe
    • winhlp32.exe
    • telnet.exe
    • locator.exe
    • recover.exe
    • logman.exe
    • dlhost.exe
    • logonui.exe
    • winspol.exe
    • services.exe
    • svchost.exe
    • lsas.exe
    • rundl32.exe
    • regedt32.exe
    • winlogon.exe
    • wuauclt.exe

      Note: %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).
  2. The worm then creates the following file:

    %System%\[AN UNPRINTABLE CHARACTER][3 CHARACTERS]log.exe

    Note: [3 characters] are the first 3 letters of the [FILE NAME] chosen in the first file name.

  3. The worm then drops the following harmless text file and opens it in Notepad:

    %Temp%\[ORIGINAL FILE NAME].txt

    Note: %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. Adds the value:

    "Anti-Virus Product Sync([path to %System%\[AN UNPRINTABLE CHARACTER][3 CHARACTERS]log.exe])" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][3 CHARACTERS]log.exe]"

    to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  5. Adds the value:

    "*[STRING 1][FILE NAME][STRING 2]" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][FILE NAME]]"

    to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

    Where [STRING 1] is one of the following:

    • Microsoft
    • Windows
    • Microsoft Windows

      and [STRING 2] is one of the following:

    • Checker
    • Monitor
    • Control

  6. Adds the value:

    "Run" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][FILE NAME]]"

    to the registry subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows

    so that the risk runs every time Windows starts.

  7. Adds the value:

    "load" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][3 CHARACTERS]log.exe]"

    to the registry subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows

    so that the risk runs every time Windows starts.

  8. Adds the value:

    "Player Already Configured" = "True"

    to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MediaPlayer\Player

    as an infection marker.

  9. Deletes the value:

    "MSMSGS"

    from the registry subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Windows\Run
  10. Gathers email addresses from files with the following extensions on the compromised computer:

    • .abc
    • .asp
    • .dbxm
    • .dhtm
    • .doc
    • .eml
    • .htm
    • .inbox
    • .js
    • .msg
    • .nws
    • .oft
    • .php
    • .rtf
    • .stm
    • .txt
    • .vcf
    • .wab
    • .xhtm
    • .xml

      The worm avoids sending email to addresses containing the following strings:

    • .gov
    • .mil
    • .org
    • @from
    • @google
    • @mm
    • @nai
    • @syman
    • @trend
    • @www
    • abuse
    • accoun
    • admin
    • announce
    • antivi
    • anyone
    • anywhere
    • avp
    • bitdefender
    • borlan
    • comment
    • contact
    • detection
    • domain.
    • example
    • feedback
    • foo.
    • free-av
    • freeav
    • gmail.
    • help
    • info@
    • java.
    • kasper
    • kernel.
    • linux
    • mailer-daemon
    • master@
    • mcafee
    • me@
    • messagelab
    • mozilla
    • msdn.
    • name@
    • nobody
    • noreply
    • norton
    • panda
    • password
    • privacy
    • rating
    • receiver@
    • registe
    • remail
    • report
    • sales@
    • secur
    • sender@
    • service
    • smtp.
    • soft.
    • somebody
    • someone
    • sophos
    • spam
    • spybot
    • sql.
    • submit
    • subscribe
    • sun.
    • support
    • unix
    • user@
    • virus
    • winrar
    • winzip
    • you@
    • your
    • zone

  11. Generates email addresses using the following strings:

    • Administrator
    • Diversity Visa Lottery
    • Mail Administrator
    • Microsoft Windows Update
    • adam
    • alex
    • alice
    • andrew
    • anna
    • bill
    • bini
    • bob
    • brenda
    • brent
    • brian
    • calvin
    • christoph
    • claudia
    • daniel
    • dave
    • david
    • debby
    • fred
    • george
    • helen
    • jack
    • james
    • jane
    • jerry
    • jimmy
    • joe
    • john
    • jose
    • julie
    • kevin
    • linda
    • maria
    • mary
    • matt
    • michael
    • mike
    • peter
    • ray
    • robert
    • sami
    • sandra
    • smith
    • stan
    • steve
    • ted
    • tom

  12. Spreads by sending a copy of itself to the email addresses gathered. The email has the following characteristics:

    Subject:
    One of the following:

    • let's chat here...
    • I'm going to somewhere
    • Re: hi
    • *IMPORTANT* You Won Diversity Visa Lottery!
    • [No Subject]
    • *IMPORTANT* Microsoft Windows Automatic Update disabled
    • Fw: Fw: Osama Bin Laden has been arrested!
    • you_lied
    • Your Information
    • **WARNING** Your Internet account
    • Password
    • WE NEED TO TALK.
    • PaRtY tonight??!
    • *Breaking News* Michael Jackson Died
    • Fw: Fw: The 'SECRET' behind John Paul's death
    • John Paul's death and the doctors...
    • Author of Mydoom has been ARRESTED!
    • FOR GIRLS ONLY!!, Boys
    • Make sure u are alone
    • J Lo with no closes ON!!
    • It seems a good day!!
    • FOR THE LAST TIME!!
    • You chat room friend
    • RE: the document
    • Administrator
    • **WARNING** Account Currently Disabled
    • Welcome back

      Message Body:
      One of the following:

    • You IP was logged because you accessed porn related sites. Attached is list of sites you visited and information about your Internet account.
    • I'm back with the password. Hit me back
    • Attached is a confidential information about the Webs you browsed.
    • Please, try to forward this document to all your relatives and reveal the truth.
    • someone sent me this document which is stolen from a secret government body and deals about John Paul's death. It says he was killed by two 'doctors' who were hired by some government bodies. The text attached contains all the story behind his death and who these doctors are.
    • Hey we need to talk. Read the attachment and hit me back
    • This is for the last time. Answer me.
    • Big day huh! What a great surprise! I just read on Arab site that Osama bin laden has been arested by US solders. It's lot to talk here. I just copied the whole text in Notepad and attached it. Nice news huh?!
    • I don't know how to say it, but it is really annoying thing that happened on John Paul the 2nd. He was killed by two 'doctors' who were hired by some security firms. The text attached contains all the story behind his death.someone sent me this document which is stolen from a secret government body and deals about John Paul's death. It says he was killed by two 'doctors' who were hired by some government bodies. The text attached contains all the story behind his death and who these doctors are.
    • hey it's me from the chat room, remember? anyway I've sent u my pic. let me know wussup.
    • i have found a new chat rooms, see you there.
    • I'm on vacation, what about you? Check out my girl, N-A-K-E-D!!
    • HeEeLLLoOoOoO! Party tonight???!!! Let me KnOw what's up.
    • Damn! I Heard that Michael Jackson died this morning. The news says there was an acciedent. I have attached the whole story.
    • no hay sitio para ...!!
    • Hey, this is to tell you that the author of the Internet Worm 'MyDoom' has been arrested by Microsoft today. He is an OLD MAN, about 50s.
    • For girls only!! Are you alone?
    • We were waiting for u! Group pic available
    • The mail client cannot display the picture due to high resolution on the graphics. Contents has been attached as a hexadecimal text.
    • you again!! c ya!
    • Your mail account will be disabled. See the atta/
    • You have won the this year's diversity visa lottery. We reommend you to start the process  as soon as possible. Read the attached document for more information.
    • The Visa Lottery Commite.
    • This message was automatically sent from the Microsoft Windows Update Web site.
      Microsoft Corporation (c) 2001-2005. All rights reserved.
    • \xeb\x02\xeb\x0f\x66\x81\xec\x04\x08\x8b\xec\x83\xec\x50\xe8\xef\xff\xff\xff\x5b\x80\xc3\x10\x33\xc9\x66\xb9\xba\x01\x80\x33\x95\x43\xe2\xfa\x7e\xfa\xa6\x4e\x26\xa5\xf1\x1e\x96\x1e\xd5\x99\x1e
      We have found that Windows Automatic Update is not enabled on your computer and Windows could not update itself. This may have happened because your system is infected with a latest virus. We recommend you to download updates manually and install on your system. We have sent you Microsoft Windows Malicious Software Removal Tool. Scan your system with this software and delete any file detected as virus. Then try to update Windows.
    • I have attached it
      -----Original Message-----
      From:
      To:
      Sent: [Removed]
      Subject: the document
      Please send me that document

      Attachment:
      May contain one of the following strings:

    • chat_server
    • details
    • Hex_Picture.txt
    • JohnPaul.txt
    • group_photo
    • chat_server.txt
    • Account.doc
    • messaggio.doc
    • Removal_tool
    • your_document.doc
    • ditail.txt
    • Microsoft_Documentation
    • my_pictur.jpeg
    • with_this_girl.jpg
    • password.doc
    • you_lied.txt
    • where_the_party_is.doc
    • Full_Story.doc
    • document.doc
    • photo.jpg
    • my_girl.jpg
    • JohnPaul_Death.Doc
    • full_story.doc
    • Bin_Laden_Arrested
    • party_location.txt
    • read_carefully

  13. Lowers security settings by attempting to end the processe and delete the file containing these strings, some of which may be security-related:

    • AGLE
    • ALAR
    • ALERT
    • ANTI
    • ANTS
    • APLICA32
    • APVXDWIN
    • ATCON
    • ATRO55EN
    • BD_PROFESSIONAL
    • BIDEF
    • BIDSERVER
    • BISP
    • BLA
    • BOOTWARN
    • BORG2
    • BS120
    • CCAPP
    • MON
    • CLEAN
    • CMD
    • COMMAND
    • CWNT
    • DEPUTY
    • DPF
    • DRWEBUPW
    • EDIT
    • ENT
    • FAST
    • FIREWALL
    • FP-WIN_TRIAL
    • FRW
    • GBMENU
    • GBPOLL
    • GCAS
    • GUARD
    • HACKTRACERSETUP
    • HIJACK
    • HTLOG
    • HWPE
    • IAMAPP
    • IAMSERV
    • ICLOAD
    • ICSSUPPNT
    • ICSUPP95
    • ICSUPPNT
    • IFW2000
    • IPARMOR
    • IRIS
    • JAMMER
    • KERIO
    • LDPRO
    • LLSSEV
    • LOCALNET
    • LOCKDOWN
    • LSETUP
    • LUALL
    • LUCOMS
    • MAIN
    • MCA
    • MGR
    • MGUI
    • MINILOG
    • MOOLIVE
    • MRFLUX
    • MSCONFIG
    • MSINFO32
    • MSSMMC32
    • MU0311AD
    • NC2000
    • NCINST4
    • NDD32
    • NETARMOR
    • NETINFO
    • NETSTAT
    • NORTO
    • MNTOR
    • NTVDM
    • NVARCH16
    • NWINST4
    • NWTOOL16
    • OSTRONET
    • OUTPOST
    • PANIXK
    • PDSETUP
    • PERISCOPE
    • PERSFW
    • PLATIN
    • PORT
    • PPINUPDT
    • PPTBC
    • PPVSTOP
    • PROC
    • PROTECT
    • PROXY
    • PSPF
    • PURGE
    • PVIEW95
    • REG
    • RESCUE
    • RTVSCN95
    • RULAUNCH
    • SAFE
    • SBSERV
    • SCAN
    • SETUPVAMEEVAL
    • SGSSFW32
    • SHELL
    • SHN
    • SMC
    • SMSRSS
    • SNDSRVC
    • SOFI
    • SOPHO
    • SPBBCSVC
    • SPF
    • SPHINX
    • SPY
    • ST2
    • STINGER
    • SUPFTRL
    • SYMA
    • SYN
    • TITANIN
    • TRACERT
    • TRJSETUP
    • TROJAN
    • UNDOBOOT
    • UPDATE
    • UPGRADE
    • VIRUS
    • ZON

  14. The worm then modifies the hosts file to block access to the following security-related Web sites. It also modifies the file attribute as hidden, readonly and system to block changes:

    127.0.0.1        symantec.com
    127.0.0.1        www.symantec.com
    127.0.0.1        www.microsoft.com
    127.0.0.1        microsoft.com
    127.0.0.1        windowsupdate.com
    127.0.0.1        securityresponse.symantec.com
    127.0.0.1        www.windowsupdate.com
    127.0.0.1        sophos.com
    127.0.0.1        www.sophos.com
    127.0.0.1        mcafee.com
    127.0.0.1        definitions.symantec.com
    127.0.0.1        networkassociates.com
    127.0.0.1        downloads-eu1.kaspersky-labs.com
    127.0.0.1        downloads-us1.kaspersky-labs.com
    127.0.0.1        downloads4.kaspersky-labs.com
    127.0.0.1        downloads3.kaspersky-labs.com
    127.0.0.1        downloads2.kaspersky-labs.com
    127.0.0.1        downloads1.kaspersky-labs.com
    127.0.0.1        www.kaspersky.com
    127.0.0.1        www.kaspersky-labs.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        viruslist.com
    127.0.0.1        liveupdate.symantecliveupdate.com
    127.0.0.1        www.f-secure.com
    127.0.0.1        www.nai.com
    127.0.0.1        nai.com
    127.0.0.1        trendmicro.com
    127.0.0.1        www.download.com
    127.0.0.1        download.com
    127.0.0.1        www.networkassociates.com
    127.0.0.1        us.mcafee.com
    127.0.0.1        www.zonelabs.com
    127.0.0.1        rads.mcafee.com
    127.0.0.1        download.zonelabs.com
    127.0.0.1        cm2.zonelabs.com
    127.0.0.1        avp.com
    127.0.0.1        www.avp.com
    127.0.0.1        update.zonelabs.com
    127.0.0.1        www.mcafee.com
    127.0.0.1        www.trendmicro.com
    127.0.0.1        dispatch.mcafee.com
    # Copyright (c) 1993-1999 Microsoft Corporation.

  15. The worm creates the following mutexes so that only one instance of the worm runs on the compromised computer, and to prevent other known threats from running:

    • Kebede v5.0
    • -oO]xX|-S-k-y-N-e-t-|Xx[Oo-_
    • [SkyNet.cz]SystemsMutex
    • AdmSkynetJklS003
    • Zone Alarm Mutex
    • AdmSkynetJKIS003
    • qwedefacedRDE
    • ____--->>>>U<<<<--_____
    • SwebSipcSmtxS0
    • NTShell Taskman Startup Mutex
    • MuXxXxTENYKSDesignedAsTheFollowerOfSkynet-D
    • 'D'r'o'p'p'e'd'S'k'y'N'e't'
    • 43jfds93872
    • H-E-L-L-T-O-B
    • SkynetSasserVersionWithPingFast
    • _-oOaxX|-+S+-+k+-+y+-+N+-+e+-+t+-|XxKOo-_
    • WWWdefacedWWW
    • LK[SkyNet.cz]SystemsMutex
    • SkyNet-Sasser
    • H-e-l-l-B-o-t-3-T-e-a-M!!!
    • H-e-l-l-B-o-t
    • H-e-l-l-B-o-t-3
    • NetDy_Mutex_Psycho
    • 89845848594808308439858307378280987074387498739847
    • AdmMoodownJKIS003
    • SkYnEt_AVP
    • _-oO]xX|-S-k-y-N-e-t-|Xx[Oo-_
    • Kqlgwqnnvw
    • ~~~Bloodred~~~owns~~~you~~~xoxo~~~2004
    • Protect_USUkUyUnUeUtU_Mutex
    • DrDetroit[Bloodred.B]
    • MI[SkyNet.cz]SystemsMutex
    • [AN UNPRINTABLE CHARACTER]FAST[Kebede.E]FAST[AN UNPRINTABLE CHARACTER]
    • [AN UNPRINTABLE CHARACTER]DroppedKebede[AN UNPRINTABLE CHARACTER]

  16. The worm may keep the following files open so they cannot be deleted:

    • %Windir%\ServicePackFiles\i386\taskmgr.exe
    • %Windir%\ServicePackFiles\i386\regedit.exe
    • %Windir%\ServicePackFiles\i386\tskill.exe
    • %Windir%\ServicePackFiles\i386\taskkill.exe
    • %Windir%\ServicePackFiles\i386\tasklist.exe
    • %System%\taskmgr.exe
    • %System%\regedit.exe
    • %System%\dllcache\taskkill.exe
    • %System%\dllcache\taskmgr.exe
    • %System%\dllcache\regedit.exe
    • %System%\taskkill.exe
    • %System%\tskill.exe
    • %System%\tasklist.exe
    • %System%\dllcache\tskill.exe
    • %System%\dllcache\tasklist.exe

      Note: %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

  17. Copies itself to folders containing the strings "incom" or "download" with some of the following filenames:

    • Spyware remover.com
    • School girls getting fucked.com
    • Norton Personal Firewal 2005 Patch.com
    • ZoneAlarm Security Suite 2005 Crack.com
    • Windows XP Pro BUG FIX 2.com
    • Win Server 2003 Remote Exploit.cmd
    • Sasser removal tool.com
    • Microsoft AntiSpyware Patch.com
    • DVD ripper keygen.com
    • Naked girls screen saver.scr
    • Turbo C++.pif
    • porn download links.txt
    • Sasser Source code.txt
    • MSN Mesenger 7.0 Installer.com
    • Sasser Source Code.Sfx.com
    • WinRAR 4.2.com
    • Internet Explorer 7.0 Installer.com
    • Flash MX 2005 Serial.exe
    • UPX EXE packer 2.4.com
    • W32.Kebede Removal tool.com

  18. May attempt to rename or delete files containing the following strings in their path:

    • Microsoft AntiSpyware\gcasServAlert.exe
    • Microsoft AntiSpyware\GIANTAntiSpywareUpdater.exe
    • Microsoft AntiSpyware\gcASNotice.exe
    • srchast\mui\0409\lcladvdf.xml
    • srchast\mui\0409\balon.xsl
    • srchast\mui\0409\bar.xsl
    • Norton AntiVirus\IWP\NPFMNTOR.EXE
    • Norton AntiVirus\IWP\IWP.DLL
    • Norton AntiVirus\IWP\SymFwAgt.DLL
    • Zone Labs\ZoneAlarm\MailFrontier\mantispm.exe
    • Zone Labs\ZoneAlarm\zlclient.exe
    • Symantec\SYMEVENT.SYS
    • Norton AntiVirus\OPSCAN.EXE


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: Rodney Andres

Discovered: June 12, 2005
Updated: February 13, 2007 12:40:18 PM
Also Known As: Win32.Kebede.E [Computer Assoc, Email-Worm.Win32.Kebede.f [Kas, W32/Kedebe-F [Sophos], WORM_KEDEBE.E [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.

  1. Disable System Restore (Windows Me/XP).
  2. Remove all the entries that the risk added to the hosts file.
  3. Update the virus definitions.
  4. Run a full system scan and delete all the files detected.
  5. Delete any values added to the registry.
  6. Reenable the SharedAccess service (Windows 2000/XP only)
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, reenable 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 remove all the entries that the risk added to the hosts file
  1. Navigate to the following location:

    • Windows 95/98/Me:
      %Windir%
    • Windows NT/2000/XP:
      %Windir%\System32\drivers\etc

      Notes:
    • The location of the hosts file may vary and some computers may not have this file. There may also be multiple copies of this file in different locations. If the file is not located in these folders, search your disk drives for the hosts file, and then complete the following steps for each instance found.
    • %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).

  2. Runs "attrib -h -r -s (path to the hosts file, based on your OS above)\hosts" at the Start Menu.
  3. Double-click the hosts file.
  4. If necessary, deselect the "Always use this program to open this program" check box.
  5. Scroll through the list of programs and double-click Notepad.
  6. When the file opens, delete all the entries added by the risk. (See the Technical Details section for a complete list of entries.)
  7. Close Notepad and save your changes when prompted.

3. 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 document: 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 document: Virus Definitions (Intelligent Updater).

    The latest Intelligent Updater virus definitions can be obtained here: Intelligent Updater virus definitions. For detailed instructions read the document: How to update virus definition files using the Intelligent Updater.


4. 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, click Delete.

Important: If your Symantec antivirus product reports that it cannot delete a detected 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, restart the computer in Normal mode and proceed with the next section.

Warning messages may be displayed when the computer is restarted, since the threat may not be fully removed at this point. You can ignore these messages and click OK. These messages will not appear when the computer is restarted after the removal instructions have been fully completed. The messages displayed may be similar to the following:

Title: [File path]
Message body: Windows cannot find [file name]. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.


5. To delete the value from 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 subkeys only. For instructions refer to the document: How to make a backup of the Windows registry.
  1. Click Start > Run.
  2. Type regedit
  3. Click OK.

    Note: If the registry editor fails to open the threat may have modified the registry to prevent access to the registry editor. Security Response has developed a tool to resolve this problem. Download and run this tool, and then continue with the removal.

  4. Navigate to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  5. In the right pane, delete the value:

    "Anti-Virus Product Sync([path to %System%\[AN UNPRINTABLE CHARACTER][3 CHARACTERS]log.exe])" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][3 CHARACTERS]log.exe]"

  6. Navigate to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  7. In the right pane, delete the value:

    "*[STRING 1][FILE NAME][STRING 2]" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][FILE NAME]]"

  8. Navigate to the subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows

  9. In the right pane, delete the value:

    "Run" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][FILE NAME]]"

  10. Navigate to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  11. In the right pane, delete the value:

    "XXentryXX"="XXvalueXX"

  12. Navigate to the subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows

  13. In the right pane, delete the value:

    "load" = "[PATH TO %System%\[AN UNPRINTABLE CHARACTER][3 CHARACTERS]log.exe]"

  14. Exit the Registry Editor.


Writeup By: Rodney Andres