Secure USB Drive

A long-standing trojan that acts as a malware-distribution service is now infecting PCs via USB flash drives and other removable storage devices, according to anti-virus researchers.

The Virtumundo trojan, also known as Virtumonde or Vundo, is now infecting computers via Windows AutoRun, which enables files or programs to run immediately as soon as a removable media device is connected to a computer.

Although Virtumundo is primarily an adware program that displays pop-up advertisements and downloads software from remote servers, it is also capable of attaching itself to browsers and injecting fake entries into search results. It’s claimed to be one of most prolific ad/spyware threats in the wild to date.

There’s more detail on the worm here, and of course the spread of the worm can be limited by using secure flash drives with built-in anti-virus scanning.