Sven Jaschan, self-confessed author of the Netsky and Sasser viruses, is responsible for 70 percent of virus infections in 2004, according to a six-month malware round-up published by antivirus firm Sophos on Wednesday.
Microsoft confirmed on Monday that German authorities had arrested a man suspected of writing and releasing a program widely used to surreptitiously control computers on the Internet.
A new version of the Sasser worm has appeared after the arrest of a teenager suspected of writing the original - but it will not be much of a threat to users who have already patched their systems.
Microsoft is claiming that its US$250,000 reward was responsible for the Sasser author's arrest, but experts say money alone will not stop the virus and spam problem.
The Bobax worm, which is less than a week old but has already spawned four variants, is one of the first worms to conduct a bandwidth test on its infected host to see if it is worthy of being used as a spam zombie.
Microsoft confirmed on Monday that German authorities had arrested a man suspected of writing and releasing a program widely used to surreptitiously control computers on the Internet.
Microsoft's US$5 million fund for rewarding informants for leads on virus attacks has snagged its first success with the arrest of a man in Germany who has confessed to the release of the Sasser worm, the software giant said Saturday.
A year on, and the company's US$1 million tip-off program has nabbed just one (alleged) virus writer. Is it a bust?
Attorney Hemanshu Nigam says virus writers "ought to think twice before they hit the send button."
While XP SP2 is a huge step forward for Microsoft, there are important caveats. For example, don't expect the new Windows Firewall to prevent keystroke-logging Trojans from stealing your credit card info.
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