MyDoom Is Nasty, So Beware

Further to my earlier posting, this MyDoom worm looks nasty.

I’ve received three already in the past hour, all with different subject lines (or no subject at all), different attachments, but usually with the same content (‘The message cannot be represented in 7-bit ASCII encoding and has been sent as a binary attachment.’ This could be automatic, of course.)

Internet security provider MX Logic said said it is propagating nearly as fast as the infamous SoBig.F worm, infecting 1,200 emails per second at its peak (I’m not quite clear what this means, and there’s no comparison, but it sounds a lot).

The worm arrives in an email inbox as a .zip file, is 22,538 bytes in length and has an “.exe,” “.pif,” “.command,” or “.scr” attachment. When the included attachment is executed, the worm propagates by harvesting victim email addresses from ten different file types.

Usual rules apply: Don’t click on attachments, update your virus software daily, and brush your teeth at least twice a day.

27. January 2004 by jeremy
Categories: Malware | Tags: , , , , , , , , | Comments Off on MyDoom Is Nasty, So Beware