PC World posted a news story that security vendor Eset has spotted two new attacks exploiting an unpatched Windows flaw and expects many more to come.

Eset reported Thursday that two new families of malicious software have popped up, both of which exploit a vulnerability in the way Windows processes .link files, used to provide shortcuts to other files on the system.

The vulnerability was first exploited by the Stuxnet worm, discovered on computer systems in Iran last month. Highly sophisticated, Stuxnet targets systems running Siemens industrial control system management software. The worm steals SCADA (supervisory control and data acquisition) project files from Siemens' computer systems.

Virus Writers Are Picking up New Microsoft Attack