New AIM worm

Published: 2005-12-06
Last Updated: 2005-12-06 01:55:38 UTC
by Bojan Zdrnja (Version: 2)
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Malware authors just opened their own holiday season. We received couple of reports of a new AIM worm spreading.
The worm is simple and doesn't exploit any vulnerability; instead it relies on social engineering.

The user will receive the following AIM message:

"This AIM user has sent you a Greetings Card, to open it visit:"

Instead of going to the AOLs site, this link actually points to a different site (http://<REMOVED>.<REMOVED>.134.156/My_Christmas_Card.COM) from which the user will download the worm.
This file is a SDBot variant and at the moment the most popular AV programs detect it generically.

Thanks to Joshua!

Update: Some readers have alerted us, and we have confirmed, that there is also a variant going around that redirects to the same IP, but downloads, My_Christmas_Card.SCR.  Note, that many of the AV vendors identify this as a variant of SDBot.

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