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Facebook – New STECKCT worm spreads Instant Messaging

A new malicious IM attack is circulating in the Facebook environment, as document by Trend Security

Facebook – New STECKCT worm spreads Instant Messaging http://blog.trendmicro.com/worm-spreads-via-facebook-private-messages-instant-messengers/

QUOTE:  We recently received reports about private messages found on Facebook and distributing a link, which is a shortened URL pointing to an archive file “May09-Picture18.JPG_www.facebook.com.zip”. This archive contains a malicious file named “May09-Picture18.JPG_www.facebook.com” and uses the extension “.COM”.   Once executed, this malware (detected as WORM_STECKCT.EVL) terminates services and processes related to antivirus (AV) software, effectively disabling AV software from detection or removal of the worm. WORM_STECKCT.EVL also connects to specific websites to send and receive information.

Another noteworthy routine is that this worm downloads and executes another worm, one detected as WORM_EBOOM.AC. Based on our analysis, WORM_EBOOM.AC is capable of monitoring an affected user’s browsing activity such as message posting, deleted posted messages and private messages sent on the following websites such as Facebook, Myspace, Twitter, WordPress, and Meebo. It is also capable of spreading through the mentioned sites by posting messages containing a link to a copy of itself.

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