2/25: Kelvir-A an Instant Messaging Worm
February 25, 2005

W32/Kelvir-A is an instant messaging worm. W32/Kelvir-A spreads by sending a message through Windows Messenger to all of an infected user's contacts. The message encourages the recipient to visit a Web page to download an update and reads:

*** URGENT *** Download the latest patch from (URL) to prevent getting infected by W32.Bropia.C.

More information can be found at Sophos page.