The fast-spreading worm Sasser has wreaked more havoc on computer users worldwide, affecting several businesses, banks and government offices, including Britain's Coastguard.
First identified over the weekend, there are now at least four variants of the malicious worm. Just as a virus that affects humans can mutate and confound medical experts, each version of Sasser — labeled A, B, C, and D — poses slightly different challenges for information technology experts.
“Sasser is a successful and widely propagating worm with a somewhat benign impact to the end user,” said Chris Rouland of Internet Security Systems. “But people should absolutely remove it.”
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