A new variant of the Nachi worm has emerged that is apparently sending a political message to computers running Japanese versions of Windows.
A variant of the Sobig worm that appeared over the weekend is now spreading rapidly, security experts have warned.
Two worms based on a recently disclosed Windows flaw have been unleashed, but the attacks so far don't appear to be widespread, security experts said.
Anti-virus firms have cracked an algorithm that was being used by the Sober worm to 'communicate' with its author.
Security company Symantec raised its severity rating of the latest incarnation of the NetSky worm.
A new variant of the Nachi worm has emerged that is apparently sending a political message to computers running Japanese versions of Windows.
Security company Symantec raised its severity rating of the latest incarnation of the NetSky worm.
As the MSBlast worm continues its spread--to approximately 2,500 new computers each hour--antivirus firms said Wednesday that a new variant had been released.
Increasingly, attackers are using better tools to find vulnerabilities quickly, exploit flaws and hide their attacks.
help/how to How to recognise and remove the latest Mimail variant, which will try to steal credit card details.
Microsoft released on Tuesday fixes that cover at least 20 Windows flaws, several of which could make versions of the operating system vulnerable to new worms or viruses.
Find out why one simple virus can have several complicated names, and what each of those names might tell you.
Commentary: It's sad, but true. We'll see plenty of e-mail viruses in 2004, despite expectations that these pests would disappear in 2003. Here's why viruses won't go away--and how to protect yourself.
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Microsoft alerted PC users to three critical security flaws in Internet Explorer and Windows on Wednesday, as the MSBlast worm and its variants used a previous vulnerability in Windows to spread across the Net for a second week.
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