A Trojan horse appearing as an image in Windows Live Messenger is in fashion

IM (instant messaging) software provided by MicrosoftWindows Live Messenger (MSN Messenger)"It seems that Trojan horses appearing as image files are spreading.

There is a possibility that it will be sent from a person registered suddenly on a member list one day, so caution is necessary.

Details are as follows.
US-CERT Current Activity November 19 Trojan Spreading via MSN Messenger

According to this page, the Trojan horse that is being felt this time seems to be an image file, and it seems that there is a possibility that it will be sent from friends etc. registered in the member list.

If you open the sent file, "Internet Relay Chat (IRC) Bot" which receives attacker 's command from IRC will be installed. As a countermeasure, it is necessary to update anti-virus software definition file.

Suddenly when someone sends you a file you do not remember, you may want to check the contents of the file before you receive it.