Trojan disguised as image delivered via Skype messages

Have you read the latest issue of our digital (IN)SECURE Magazine? If not, do it now.

Skype users, beware of messages like this one:

The spamming campaign has surfaced in the last few days and is being propagated via compromised Skype accounts.

The offered links don’t lead to an image, but to a malicious executable (skype_02102012_image.exe) posing as one.

“Running the file will cause it to self delete and the infected PC will begin making DNS requests to a number of URLs, including a .pl, a .com and a .kz – we also saw references to IRC channel names in the network traffic and are investigating further,” says GFI’s Chris Boyd. “It goes without saying that being dropped into a network of compromised machines of any kind won’t do the end-user any favours.”

Luckily for the users, the Google URL shortening service manages to kill the malicious shortened links in a very short time. But the danger is there, as constantly setting up fresh links is easy to do.