Malicious hackers are using booby-trapped Flash banner ads (thanks iceb) to hijack clipboards for use in rogue security software attacks. In the Web attacks, which target Mac, Windows and Linux users running Firefox, IE and Safari, hackers are seizing control of the machine's clipboard and using a hard-to-delete URL that points to a fake anti-virus program. According to victims on several Web forums, the attack is coming from Adobe Flash-based advertising on legitimate sites - including Newsweek, Digg and MSNBC.com. Security researcher Aviv Raff has created a proof-of-concept demo to show how easy it is to use Flash with ActionScript code to load (persistently) a malicious URL into a target clipboard. (BEWARE: If you click on the demo link, your clipboard is automatically hijacked and will only be released if the browser window is closed).