Sophos

W32/Autorun-X

Aliases
  • Virus.Win32.VB.fe
  • W32/Downldr2.INA
  • W32/Autorun.worm.h
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Removable storage devices
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 6 December 2007 22:52:46 (GMT)
Last updated 14 December 2007 19:11:02 (GMT)
Detected by All Sophos products
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Action

More Information

W32/Autorun-X is a worm for the Windows platform.

When first run W32/Autorun-X copies itself to:

<System>\commond.com
<Root>\3xXx3.exe
<Root>\3xXx31.exe
<Root>\autorun.inf (May be safely deleted)

The worm will then attempt to copy 3xXx3.exe, 3xXx31.exe, and autorun.inf to removable media or network shares mapped to letters D:\ though K:\

The following registry entries are set, disabling system software:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskmgr
1

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
1

Registry entries are set as follows:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoFolderOptions
1

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Shell
Explorer.exe \system32\commond.com

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