A variant of the Trojan horse attacks known as Storm Worm emerged on Monday, targeting people who post blogs and notices to bulletin boards.
After a hiatus, the gang behind the Storm worm is attempting to exploit people's curiosity about a fictional love interest to tempt users into downloading the malware, according to security training organisation the Sans Institute.
Last week likely marked the largest proliferation of e-mail virus attacks in more than a year, according to security company Postini.
The anniversary week of the first Storm worm attack brought more variants, one of which launches an early Valentine Day attack.
Criminals behind the Storm worm have created a botnet containing millions of PCs, which have a combined computing power greater than the most powerful supercomputer in existence.
"Storm worm", one of the larger Trojan horse attacks in recent years, is baiting people with timely information about a deadly, real-life storm front, security researchers said last week.
In just eight months the Storm worm has infected more than 20 million computers and built a zombie army -- or botnet -- capable of launching DDoS attacks that could be used against any organisation or even damage critical infrastructure, according to security experts.
In yet another twist to the Storm worm menace, spammers are using a fake YouTube site to trick users into downloading the malicious code.
Its immense popularity may turn the iPhone into a painful experience for Apple, if predictions that the mobile device will be a major security target in 2008 are realised.
Phishing attacks have outnumbered e-mails infected with viruses and Trojan horse programs for the first time, according to security experts.
E-mail security company MessageLabs has warned that spammers are already modifying their tactics when it comes to the emerging trend of using audio rather than text attachments in unsolicited mail.
In 2008 the line between cybercrime and legitimate business will blur, Australians will find out just how many data breaches occur, smartphones will attract malware, and people will decide which group is worse: social networking sites seeking to monetise page hits or identity thieves.
Cyberattacks today have become so complex that there may be no real way to completely protect against them, internet security researchers have warned.
Security researchers worked overtime in 2007, which turned out to be a nightmare for software vendors from day one.
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