Sophos

W32/Sdbot-AGZ

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Drops more malware
  • Installs itself in the registry
Protection available since 12 December 2005 22:00:03 (GMT)
Detected by All Sophos products
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Action

More Information

W32/Sdbot-AGZ is a network worm with backdoor functionality for the Windows platform.

Sophos's anti-virus products include Genotype™ detection technology, which can proactively protect against new threats without requiring an update. Sophos customers have been protected against W32/Sdbot-AGZ (detected as W32/Sdbot-Fam) since version 3.93. W32/Sdbot-AGZ is a network worm with backdoor functionality for the Windows platform.

When first run, W32/Sdbot-AGZ copies itself to the Windows system folder as flxper.exe and creates the following registry entries in order to run each time a user logs on:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
NotFaut
"flxper.exe"

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
NotFaut
"flxper.exe"

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
NotFaut
"flxper.exe"

The worm spreads through network shares protected by weak passwords, MS-SQL servers and through various operating system vulnerabilities.

W32/Sdbot-AGZ connects to a predetermined IRC channel and awaits further commands from remote users. The backdoor component of W32/Sdbot-AGZ can be instructed to perform the following functions:

scan networks for vulnerabilities
download/execute arbitrary files
start an ftp server

W32/Sdbot-AGZ has also been seen bundled with Troj/Ranck-DJ.

Sophos's anti-virus products include Genotype™ detection technology, which can proactively protect against new threats without requiring an update. Sophos customers have been protected against W32/Sdbot-AGZ (detected as W32/Sdbot-Fam) since version 3.93.

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