Sophos

W32/Forbot-CE

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 December 2004 (3.88)
Protection available since 8 November 2004 22:18:21 (GMT)
Detected by All Sophos products

Action

More Information


W32/Forbot-CE is a network worm with backdoor functionality.

When first run W32/Forbot-CE copies itself to the Windows system folder and creates the following registry entries to run automatically on startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
MSN ang = "cssrss.exe"

HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\
MSN ang = "cssrss.exe"

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
MSN ang = "cssrss.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
MSN ang = "cssrss.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce\
MSN ang = "cssrss.exe"

Each time W32/Forbot-CE runs it tries to connect to a remote IRC server and join a predefined channel. W32/Forbot-CE then listens on the channel for instructions specified by a remote intruder,

W32/Forbot-CE attempts to spread to network computers using various exploits and may try to delete network shares.

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