Santa IM Worm

Published: 2005-12-22
Last Updated: 2005-12-22 04:03:59 UTC
by Marcus Sachs (Version: 1)
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One of our attentive readers sent us a note yesterday and we missed posting it in the diary.  There's a nasty present waiting under your IM tree if you have been naughty this past year.  Read on...

Techweb -

"A new worm posing as a come-on to a Santa Claus site is traveling across all the major instant messaging networks, a security firm warned Tuesday, and when recipients visit the bogus site, they're infected with a file hidden from sight by a rootkit. IMlogic said that the worm, dubbed "M.GiftCom.All," is circulating on the MSN, AOL, ICQ, and Yahoo instant messaging services, is a "Medium" threat, a relatively rare classification for the Waltham, Mass.-based company. Most IM worms and Trojans listed on its Threat Center receive only a "Low" classification. Like virtually all IM worms, M.GiftCom.All includes a URL in messages it spams out to contacts hijacked from previously-infected PCs. When users naively visit that site -- which is billed as a harmless Santa site -- a file is automatically downloaded to their computers. The file, usually named "" includes rootkit elements that cloaks it from security software. In addition, the downloaded executable tries to disable a number of anti-virus programs, adds a keylogger to the system to capture confidential information, and then spreads to others by snatching names from the user's IM client contact list..."

IM Logic

"...Description: This worm broadcasts a URL out over IM clients which downloads an executable file, often named When this file is executed, it hides itself and scans the registry, file system, and internet cache. By operating as a rootkit, the process is hidden from all tools and anti-virus software. It also attempts to shut down anti-virus software and makes several networking calls. Also it does keystroke logging and may attempt to propagate itself over IM clients..."

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