Windows 7: Koobface gang refresh botnet to beat takedown.

Command and Control servers associated with the infamous Koobface worms have gone through a complete refresh over the last fortnight. Russian net security firm Kaspersky Lab reckons the change up might be aimed at making takedown efforts by cybercrime fighters more difficult.
Koobface spreads via messages on social networking sites such as Facebook and Twitter. The worm and compromised legitimate websites act as proxies for its main command and control servers. Infected machines are contaminated with other forms of malware, in particular scareware (rogue anti-virus), an easy and most profitable mechanism in general for cybercrooks to make money.