Half of the 10 most virulent viruses last month were 'network aware', meaning they spread using the file system protocol of an organisation, according to IT security firm Sophos.
With one new Web site compromised every 14 seconds, including some of the biggest names, it's almost impossible to tell what's a "trustworthy" Web site. But who's at fault for exposing Internet users?
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.
The proof of concept Mac OS X virus, which was discovered late last week and dubbed Macarena, includes comments in the code that indicate the author had a difficult time creating the malware.
Australians are more susceptible to Bugbear than to most worms, with 11.7 percent of reported infections coming from this country, compared to between two and four percent for most worms, according to Symantec.
Australian businesses are being warned to install patches and signature files to protect against a worm variant which has surfaced in the US and Europe.
Although it's still at the top of the ranks in infection rates, Klez isn't the only worm companies should be worried about.
The latest variant of the Zafi worm was discovered on Wednesday and unlike the previous two variants, Zafi.C has been coded to launch a DDoS attack against Google.com, Microsoft.com and miniszterelnok.hu, which is the Web site of the Hungarian Prime Minister.
Businesses continue to be lax about taking basic practical steps to stop e-mail worms wreaking havoc with their networks, according to anti-virus experts.
Anti-virus companies have played down the threat from the Nolor (aka Cailont) mass-mailing e-mail worm, a "garden variety" virus that spreads by sending itself to Windows address book entries through an executable attachment.
Security vendor Symantec has once again pointed the knife at Apple Macintosh users.
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