Anti-virus companies have upgraded their threat ratings of the Korgo worm, which spreads through a known Explorer vulnerability.
The Sasser worm accounted for more than half of all virus reports worldwide in May.
The Sasser computer worm was the most prolific virus in May, according to Sophos.
ICL Eject has released the eScan Virus Control anti-virus application for its subscribers.
The Sophos PureMessage consolidated anti-spam and anti-virus solution has been released, says local distributor Netxactics.
The Trend Micro NeatSuite solution has won the CMP Media Network Computing Well-Connected Award, says local Trend distributor SecureData.
Symantec has identified the first known virus to attack 64-bit Windows executables successfully. The virus could pave the way for future malicious 64-bit viruses, it says.
Virus infections are becoming increasingly destructive and frequent, despite more companies buying anti-virus solutions, Futurex conference delegates have heard.
Netxactics is warning computer users of the Bobax Internet worm, which turns infected PCs into spam factories and launch pads for denial-of-service attacks.
Phishing could cost SA tens of millions of rands, says Microsoft.
Computer Associates (CA) International is offering free e-mail alerts regarding critical viruses and vulnerabilities.
No sooner has the alleged Sasser author confessed than a new Internet worm threat has emerged.
Microsoft says information leading to the recent arrest of the alleged creator of the Sasser worm came in part from its anti-virus reward programme.