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Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 13 October 2004 11:10:11 (GMT) |
| Detected by | All Sophos products |
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Action
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W32/Forbot-BE is a worm which attempts to spread to remote network shares. It also contains backdoor Trojan functionality, allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.
W32/Forbot-BE copies itself to the Windows system folder as SVHOSINT32.EXE and creates entries in the registry at the following locations so as to run itself on system startup:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Win32 Usb Driver = svhosint32.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\
Win32 Usb Driver = svhosint32.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Win32 Usb Driver = svhosint32.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
Win32 Usb Driver = svhosint32.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce\
Win32 Usb Driver = svhosint32.exe
W32/Forbot-BE also creates its own service named "Win32 Usb Driver", with the display name "Win32 Usb Driver".
W32/Forbot-BE attempts to terminate several processes related to security and anti-virus programs.
W32/Forbot-BE attempts to spread to network machines using various exploits including the LSASS vulnerability (see MS04-011).
Sophos anti-virus products since version 3.85 have been capable of detecting this Worm as W32/Forbot-Gen without requiring an update.
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