The worm, operating under the guises of Zacker, Reeezak, Maldal and Keyluc, arrives with the subject header "Happy New Year" and contains a file attachment entitled "christmas.exe." It uses ...

Security vendors have warned that the "Happy New Year" worm could catch employees returning from New Year's celebrations unawares, but believe the threat posed by the malware will soon pass.

The worm, dubbed "Tibs" by Kaspersky Lab but also known as a "Nuwar" variant (Trend Micro) and "Mixor.q" (Symantec), appears as a file attachment named "postcard.exe" in messages with "Happy New ...