high
Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Included in our products from | December 2005 (4.00) |
| Protection available since | 19 October 2005 20:55:15 (GMT) |
| Last updated | 28 October 2005 12:55:07 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Rbot-ASQ is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-ASQ spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), WKS (MS03-049) (CAN-2003-0812) and ASN.1 (MS04-007).
W32/Rbot-ASQ 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/Rbot-ASQ copies itself to <System>\mswpi32.exe and creates the file <System>\rdriv.sys.
The file rdriv.sys is detected as Troj/Rootkit-W.
The following registry entries are created to run mswpi32.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
MS Windows Process Init
MSWPI32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
MS Windows Process Init
MSWPI32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
MS Windows Process Init
MSWPI32.exe
The file rdriv.sys is registered as a new system driver service named "rdriv", with a display name of "rdriv". Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\rdriv\
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