Sophos

W32/Sdbot-AFB

Aliases
  • Backdoor.Win32.SdBot.acg
  • Sdbot.worm.gen.bh
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from February 2006 (4.02)
Protection available since 7 November 2005 04:01:32 (GMT)
Last updated 22 December 2005 19:10:39 (GMT)
Detected by All Sophos products

Action

More Information

W32/Sdbot-AFB is a worm and IRC backdoor Trojan for the Windows platform.

W32/Sdbot-AFB spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: PNP (MS05-039) and by copying itself to network shares protected by weak passwords.

The following patches for the operating system vulnerabilities exploited by W32/Sdbot-AFB can be obtained from the Microsoft website:

MS05-039

W32/Sdbot-AFB runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.

When first run W32/Sdbot-AFB copies itself to <System>\poker3.exe.

The following registry entries are created to run poker3.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Microsoft Windows DLL Services Configuration
poker3.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Windows DLL Services Configuration
poker3.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Windows DLL Services Configuration
poker3.exe

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