MSN messenger - messages from unknown contacts
Posted on 2006-06-27
about a month ago, we had a virus spread through MSN messenger. a user would get a message from a known contact (a buddy on their list) that had a link. when they clicked on the link, it downloaded the virus, scanned their buddy list, and spread itself to everyone on the list. we stopped the virus before it spread very far ... and cleaned up the infected computers. we have been fine for the past month.
this morning, many of the users got an IM from an *unknown* person (not a person on their buddy list). many of the messages were in chinese, although i am getting reports of messages in english, too. These messages have a link included. so far, my users are reporting that they did not click on the link. one person did add the contact to their buddy list, but says he did not click on the link.
I am running a virus scan. last time this happened, symantec corporate AV did not detect the infection. i submitted infected files to symantec and they wrote definitions for that virus which were included in a liveupdate.
since everyone here claims they did not click on the IM, i am wondering if this is just a random MSN thing ... or if i should continue to suspect that we have at least one infected computer ???