W32/Virut.A - Released May 13, 2006 - Last Updated Oct 25, 2006
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Alias/esPE_VIRUT.A, W32/Virut-A, W32/Virut.a |
Detection Availability
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Visible Symptoms
- Possible firewall alert that an executable attempting to connect to the internet.
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Detailed Analysis
- This virus infects running processes by writing the virus code to the target processes and creating a remote thread to execute it. It avoids infecting the following processes:
- [system process]
- system
- smss.exe
- csrss.exe
- Creates a named event to ensure that only one instance of the virus runs on the compromised computer.
- Connects to the IRC server Proxima.ircgalaxy.pl using port 65520 on channel &virtu to await instructions and commands from a malicious user. These commands can cause the infected machine to download malicious files.
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Recommended Action
FortiGate Systems
- Check the main screen using the web interface for your FortiGate unit to ensure that the latest AV/NIDS database has been downloaded and installed on your system - if required, enable the "Allow Push Update" option.
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