high
Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Included in our products from | February 2005 (3.90) |
| Protection available since | 21 December 2004 06:49:50 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please read the instructions for removing W32/Forbot-DC.
More Information
W32/Forbot-DC is a IRC backdoor Trojan and network worm for the Windows platform.
In order to run automatically when Windows starts up the worm moves itself to the Windows system folder as Messenger.exe and creates the following registry entries:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
System driver
Messenger.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\
System driver
Messenger.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
System driver
Messenger.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
System driver
Messenger.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce\
System driver
Messenger.exe
W32/Forbot-DC also creates its own service named "INTERNET EXPLORAR", with the display name "System driver".
Once installed, W32/Forbot-DC connects to a preconfigured IRC server and joins a channel from which an attacker can issue further commands. These commands can cause the infected machine to perform any of the following actions:
flood a remote host (by either ping or HTTP)
start a SOCKS4 proxy server
start an HTTP server
start an FTP server
portscan randomly-chosen IP addresses
execute arbitrary commands
steal information such as passwords and product keys
upload/download files
The worm can spread to unpatched machines affected by the LSASS vulnerability (see MS04-011) and through backdoors left open by the Troj/Optix Trojans.
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