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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 | 17 August 2005 19:15:58 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Codbot-U is a backdoor Trojan which allows a remote intruder to gain access and control over the computer.
W32/Codbot-U spreads to other network computers by exploiting common buffer overflow vulnerabilites, including: LSASS (MS04-011), RPC-DCOM (MS04-012) and MSSQL (MS02-039) (CAN-2002-0649). The following patches for the operating system vulnerabilities exploited by W32/Codbot-U can be obtained from the Microsoft website:
W32/Codbot-U 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-U copies itself to <System>\regedit.exe and creates the file <Temp>\terminate.bat.
The file regedit.exe is registered as a new system driver service named "Regedit", with a display name of "Registry Editor" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\Regedit\
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