high
Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 30 September 2004 09:41:37 (GMT) |
| Detected by | All Sophos products |
Sophos beta program
- Endpoint Security and Control 9.0
- Small business solutions 4.0
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Forbot-AS 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-AS copies itself to the Windows system folder as NAVSW.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\
Norton SpySweeper AutoUpdate = navsw.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\
Norton SpySweeper AutoUpdate = navsw.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Norton SpySweeper AutoUpdate = navsw.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
Norton SpySweeper AutoUpdate = navsw.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce\
Norton SpySweeper AutoUpdate = navsw.exe
W32/Forbot-AS also creates its own service named "Norton NASW", with the display name "Norton SpySweeper AutoUpdate".
W32/Forbot-AS attempts to spread to network machines using various exploits including the LSASS vulnerability (see MS04-011). The worm may also act as a proxy.
W32/Forbot-AS may download and execute code. The worm may also steal keys for software and delete network shares.
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