Summary

Summary
Action
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| Protection available since | 28 September 2003 09:47:19 (GMT) |
|---|---|
| Detected by | All Sophos products |
- Free virus, spyware, and adware scan
- Test your existing anti-virus protection
- Find threats your anti-virus missed
Action

Summary
Action
More Information
Please follow the instructions for removing worms.
Please follow the instructions for removing worms.
More Information
W32/Raleka-B is a network worm which uses the Microsoft DCOM RPC vulnerability to propagate across a network.
The worm will attempt to connect to vulnerable computers and upload and execute the following files:
svchost.exe, ntrootkit.exe, ntrootkit.reg and service.exe
Svchost.exe is a copy of the worm itself.
Ntrootkit.exe is a copy of the backdoor Trojan Troj/RtKit-11.
Ntrootkit.reg is a file used to run Troj/RtKit-11 on Windows XP systems.
Service.exe is a legitimate utility.
The worm will attempt to download and install the Microsoft patch for the DCOM RPC vulnerability.
W32/Raleka-B includes backdoor functionality. The worm will attempt to contact IRC servers and await instructions from a remote attacker.
Microsoft has issued a patch for the vulnerability exploited by this worm. The patch is available from www.microsoft.com/technet/security/bulletin/MS03-026.asp.
