The next variant of the Sober worm is set to attack computers already infected by previous versions of the malware at the stroke of midnight GMT as Jan. 5 turns into Jan. 6, according to European antivirus software vendors. Given that both Internet service providers and local police are closely monitoring Web sites likely to be used in the attack, security experts believe the hacker may choose not to engage in any malicious activity this time around.

Next Sober worm on the way