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September 19, 2006 3:04 PM PDT
AOL IM worm on the loose
Last modified: September 20, 2006 9:53 AM PDT
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The worm provides a path for rootkits and Trojan horses to propagate on the computers of those listed on the user's buddy list, according to an advisory poublished Monday by FaceTime Security Labs. The Pipeline worm is one of a growing number of instant-messaging threats on the Internet.
Pipeline initially appears as an instant message from a familiar contact, according to FaceTime security. A message appears asking users to click on a link to upload a picture of themselves; instead, a command file, image18.com, is downloaded and disguised as a JPEG, according to FaceTime.
Once the user runs the file, a csts.exe executable program is created and installed in the user's system32 folder, as part of the Windows operating system. After a user's system is infected, it becomes part of a botnet--a group of computers controlled remotely to distribute such malicious attacks as viruses or Trojan horses.
"The emphasis for this latest worm is not so much on the files that are delivered to the users' computers, but rather on the way these files are deposited onto the system," Chris Boyd, FaceTime's research director for malicious software, said in a statement.
AOL has taken steps to block the impact of the malicious software. "This particular worm is no longer a threat on the AIM network, as we've been blocking IMs containing the URL to the hostile site since last Tuesday," AOL spokesman Andrew Weinstein said.
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one should consider a Mac or Linux distros.