W32.Stration.DE@mm

1. Displays the following message box:
   
   Title: Information
   Message: Update successfully installed.
   
   
   
   
   
2. Adds the value:
   
   "PendingFileRenameOperations" = "[PATH TO THE WORM FILE]"
   
   to the following registry subkey:
   
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager
   
   
3. May download and execute the following file:
   
   [http://]www6.fandesjinkderunha.com/chr/829/nt[REMOVED]
   
   
4. Drops the following files:
   
   
   • %Windir%\mswiz32.exe
   • %Windir%\mswiz32.wax
   • %Windir%\mswiz32.dat
   • %Windir%\mswiz32.s
   • %System%\e1.dll
     
     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).
   • %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).
     
     
5. Adds the value:
   
   "mswiz32" = "%Windir%\mswiz32.exe s"
   
   to the following registry subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   
   so that it executes whenever Windows starts.
   
   
6. Adds the value:
   
   "AppInit_DLLs" = "e1.dll"
   
   to the following registry subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
   
   so that it executes whenever certain applications start.
   
   
7. Modifies the values:
   
   "ProxyBypass" = "1"
   "IntranetNames" = "1"
   "UNCAIntranet" = "1"
   "MigrateProxy" = "1"
   "ProxyEnable" = "1"
   
   in the following registry subkey:
   
   HKEY_CURRENT_USER\Software\Microsoft\windows\CurrentVersion\Internet Settings
   
   to change the settings in Internet Explorer.
   
   
8. Modifies the value:
   
   "ProxyEnable" = "1"
   
   in the following registry subkey:
   
   HKEY_CURRENT_CONFIG\Software\Microsoft\windows\CurrentVersion\Internet Settings
   
   to change the settings in Internet Explorer.
   
   
9. May delete the following registry entries:
   
   HKEY_CURRENT_USER\Software\Microsoft\windows\CurrentVersion\Internet Settings\ProxyServer
   HKEY_CURRENT_USER\Software\Microsoft\windows\CurrentVersion\Internet Settings\ProxyOverride
   HKEY_CURRENT_USER\Software\Microsoft\windows\CurrentVersion\Internet Settings\AutoConfigURL
   
   
10. Gathers email addresses from the compromised computer.
    
    
11. Sends a copy of itself as an email attachment to the gathered email addresses. The email has the following characteristics:
    
    Subject:
    One of the following:
    
    
    • Good Day
    • Server Report
    • hello
    • picture
    • Status
    • test
    • Error
    • Mail Delivery System
    • Mail server report
    • Mail Transaction Failed
      
      Message:
      One of the following:
      
    • Mail server report.
      Our firewall determined the e-mails containing worm copies are being sent from  [REMOVED]  updates for worm elimination and your computer restoring.
      Best regards,
      Customers support service
      
    • The message contains Unicode characters and has been sentas a binary attachment.
      
      
    • Mail transaction failed. Partial message is available.
      
      
    • The message cannot be represented in 7-bit ASCII encodingand has been sent as a binary attachment
      
      Attachment:
      One of the following:
    • body
    • data
    • doc
    • docs
    • document
    • file
    • message
    • readme
    • test
    • text
    • Update-KB[RANDOM NUMBER]-x86
      
      followed by one of the following extensions:
    • .log
    • .elm
    • .msg
    • .txt
    • .dat
      
      followed by blank spaces and then one of the following extensions:
    • .bat
    • .cmd
    • .scr
    • .exe
    • .pif
      
      
12. May download a file from the following URL:
    
    [http://]www4.fandesjinkderunha.com/chr/829/lt[REMOVED]
    
    
13. Drops the following files:
    
    
    • %System%\slbrmqtr.exe
    • %System%\wshnseri.exe
    • %System%\avifipxr.dll
    • %System%\icmpdx3j.dll
    • %System%\e1.dll
      
      
14. Adds the value:
    
    "slbrmqtr" = "%System%\slbrmqtr.exe"
    
    to the following registry subkey:
    
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    
    so that it executes whenever Windows starts.
    
    
15. Adds the value:
    
    "AppInit_DLLs" = "icmpdx3j.dll e1.dll"
    
    to the following registry subkey:
    
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
    
    so that it starts whenever certain applications start.
    
    
16. May then download the following file:
    
    [http://]www5.fandesjinkderunha.com/chr/829/s[REMOVED]
    
    
17. Drops the following files:
    
    
    • %System%\jgsdrpcn.dll
    • %System%\jgsdrpcn.exe
    • %System%\icmpdx3j.dll
    • %System%\e1.dll
      
      
18. Modifies the values:
    
    "DllName" = "%System%\jgsdrpcn.dll"
    "Startup" = "WlxStartupEvent"
    "Shutdown" = "WlxShutdownEvent"
    "Impersonate" = "0"
    "Asynchronous" = "0"
    
    in the following registry subkey:
    
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\jgsdrpcn
    
    so that it executes whenever Windows starts.
    
    
19. Adds the value:
    
    "AppInit_DLLs" = "icmpdx3j.dll e1.dll"
    
    to the registry subkey:
    
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
    
    so that it executes whenever certain applications start.
    
    
20. Connects to the following Web sites:
    
    [http://]www3.fandesjinkderunha.com/cgi-bin/pr[REMOVED]
    [http://]traferreg.com/chr/829/[REMOVED]

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.