Software "back doors" that can give hackers full control over an infected PC are becoming more difficult to detect because of the sheer number of viruses and worms that can now distribute this type of malware, say security experts.
Two new Bagle worm variants and the worm's original assembler source code were spreading around the Internet on Sunday - a dangerous development, according to security experts.
Antivirus companies are warning of a new virus that attacks Web sites run by the Chechen rebels and also mocks the authors of MyDoom and Bagle.
MyDoom is arguably the most successful mass mailing worm in history. One year after it was discovered, MyDoom has spawned more than 30 variants and is still evolving.
A new variant of the Bagle virus incorporates a Socks proxy and Web services technology aimed at bypassing corporate firewalls, security experts have warned.
We recommend installing Windows XP SP2 but only after Microsoft has had a few weeks to work out the kinks.
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