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W32.SillyDC

Posted: November 17, 2009

W32.SillyDC is a malicious network-aware Worm that detects variants of the W32.Silly family of viruses which spreads via removable media. Malware.SillyDC can download other malicious applications referenced in autorun.inf files that may be located on removable drives or network drives. W32.SillyDC will try to spread to other computers and should be removed from the infected computer upon detection.

Aliases

Worm.Win32.AutoRun.afcb (Kaspersky Lab)
Downloader-AZN.dr (McAfee)
Mal/Autorun-C (Sophos)
Trojan.Win32.Glox (Ikarus)
Packed/Upack (AhnLab)
packed with PE_Patch (Kaspersky Lab)

File System Modifications

  • The following files were created in the system:
    # File Name
    1 %AllUsersProfile%\ming9df16.ini
    2 %System%\drivers\etc\hosts
    3 %Windir%\system\ming9b090423.exe
    4 %Windir%\system\nb9ming32c090423.dll

Registry Modifications

  • The following newly produced Registry Values are:
    HKEY..\..\..\..{Subkeys}[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main][HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings][HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL]HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\..{RunKeys}[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run]
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