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 website of the Hungarian prime minister.
The Zafi worm has evolved since it was first discovered in April of this year. Zafi.A contained Hungarian text and only tried to send itself to email addresses inside Hungary. Also, it did not contain a destructive payload. Two months later Zafi.B was released and this time the worm was able to terminate antivirus and firewall applications and ‘speak’ in numerous languages, including English, Spanish, Russian and Swedish.
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