Kelihos Botnet Case: Microsoft Retracts Lawsuit Against dotFree

Software giant Microsoft has dropped the lawsuit it had filed against a Czech based domain name firm for hosting the command and control centres for the Kelihos botnet.

The take down of the botnet was a combined effort Microsoft, Kaspersky and Kyrus Tech.

The take down was followed by Microsoft filing a lawsuit against Czeh based dotFree, which was owned by Dominique Alexander Piatti, for hosting the command and control centre for the botnet.

Microsoft had said that it was the first time known entities were accused in a botnet scam, because the perpetrators were usually never caught. Soon after the lawsuit was filed, Microsoft got into talks with the company to get to the bottom of it.

"Since the Kelihos takedown, we have been in talks with Mr. Piatti and dotFREE Group s.r.o. and, after reviewing the evidence voluntarily provided by Mr. Piatti, we believe that neither he nor his business were involved in controlling the subdomains used to host the Kelihos botnet," Richard Domingues Boscovich, a senior attorney with Microsoft's Digital Crimes Unit (DCU), said yesterday.

"Rather, the controllers of the Kelihos botnet leveraged the subdomain services offered by Mr. Piatti's cz.cc domain," he added.