Trile.C is a worm that infects a large number of files on infected computers by copying itself to the beginning of them and ends active processes belonging to antivirus and security programs.

This worm mainly spreads via e-mail and the P2P (peer to peer) file sharing programs KaZaA and Shareaza. When it spreads via e-mail, Trile.C reaches computers in a message that includes an attached file with variable characteristics. For a list of these files click here.

When it has infected a computer, Trile.C sends itself out to all the contacts in the Address Book in Outlook.

Trile.C is easy to recognize, as after infecting a computer, Trile.C displays one of seven different error messages on screen, for example:

In order to see the other six possible error messages displayed by Trile.C, click here.