Summary

Summary
Action
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| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Included in our products from | November 2005 (3.99) |
| Protection available since | 9 October 2005 15:53:59 (GMT) |
| Detected by | All Sophos products |
Action

Summary
Action
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Please follow the instructions for removing worms.
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W32/Codbot-AC is a worm and IRC backdoor Trojan for the Windows platform.
W32/Codbot-AC runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
When first run W32/Codbot-AC copies itself to <System>\wuapi.exe and creates the file <Temp>\.bat.
The file wuapi.exe is registered as a new system driver service named "Automatic Update", with a display name of "Automatic Update Service" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\Automatic Update\
