W32/Rbot-VM

Category: Viruses and Spyware
Type: Win32 worm
Prevalence: Small Number of Reports

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W32/Rbot-VM is a network worm and IRC backdoor Trojan for the Windows platform.

W32/Rbot-VM spreads using a variety of techniques including exploiting weak passwords on computers and SQL servers, exploiting operating system vulnerabilities (including DCOM-RPC, LSASS).

W32/Rbot-VM can be controlled by a remote attacker over IRC channels. The backdoor component of W32/Rbot-VM can be instructed by a remote user to perform a predefined set of functions. W32/Rbot-VM is a network worm and IRC backdoor Trojan for the Windows platform.

W32/Rbot-VM spreads using a variety of techniques including exploiting weak passwords on computers and SQL servers, exploiting operating system vulnerabilities (including DCOM-RPC, LSASS).

W32/Rbot-VM can be controlled by a remote attacker over IRC channels. The backdoor component of W32/Rbot-VM can be instructed by a remote user to perform a predefined set of functions.

The worm copies itself to a file named crmss.exe in the Windows system folder and creates the following registry entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
xpupdate
updates.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
xpupdate
updates.exe

Patches for the operating system vulnerabilities exploited by W32/Rbot-VM can be obtained from Microsoft at:

http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx
http://www.microsoft.com/technet/security/bulletin/ms04-012.mspx

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