Threat Description



Aliases: MyDoom.T, W32/Mydoom.T@MM,, I-Worm.Mydoom.r
Category: Malware
Type: Email-Worm
Platform: W32


Another new variant of MyDoom worm - Mydoom.T, was found on September 3rd, 2004. This worm variant is similar to previous ones. It spreads in e-mails with different subject and body texts, to Kazaa P2P (peer-to-peer) file sharing network and also drops a backdoor component that listens on port 5422. Additionally the worm can perform a DDoS (Distributed Denial of Service) attack against Microsoft's website.


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.


Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for further assistance.


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