high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 18 October 2005 13:21:55 (GMT) |
| Last updated | 20 October 2005 03:41:13 (GMT) |
| Detected by | All Sophos products |
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Action
- Summary
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More Information
W32/Rbot-ASJ is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-ASJ spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: WKS (MS03-049) (CAN-2003-0812), Veritas (CAN-2004-1172) and ASN.1 (MS04-007) and by copying itself to network shares protected by weak passwords.
W32/Rbot-ASJ 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-ASJ copies itself to <System>\schedsvc32.exe.
The following registry entries are created to run schedsvc32.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Task Scheduler Engine
schedsvc32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Task Scheduler Engine
schedsvc32.exe
Registry entries are set as follows:
HKCU\Software\Microsoft\OLE
Task Scheduler Engine
schedsvc32.exe
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
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