WinosCentral are reporting Companies with servers running Microsoft's database application should watch out for a new hacker tool that scans and then infects systems, network security experts warned on Wednesday. The hacker tool, named "Voyager Alpha Force," has already been used to infect more than 300 computers, said Elias Levy, chief technology officer at SecurityFocus.com.

That is a small percentage of the hundreds of thousands of computers that were infected by the Code Red and Nimda computer worms in August and September, and the tool heavily relies on the unreliable Internet relay chat (IRC) system, reducing the threat of the tool.