Kelihos suspect: I didn't do it

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A Russian man suspected of helping run and create the Kelihos botnet has proclaimed his innocence.

Last week, Microsoft issued an amended complaint at the US District Court for the Eastern District of Virginia claiming former antivirus professional Andrey N Sabelnikov was "responsible for the operations of the Kelihos botnet."

Sabelnikov has subsequently posted a blog on LiveJournal, saying he was "dismayed" at being named a suspect.

We look forward to seeing Mr Sabelnikov in court so we can continue this discussion.

The Russian claimed he "did not commit this crime" and had "never participated in the management of botnets."

Sabelnikov said he had been over to America on business in late January when Microsoft lodged the complaint, but decided to return to Russia as he could not afford legal assitance in the US.

He added he was ready to answer questions relating to Kelihos.

The Kelihos botnet was shut down last year, but Microsoft has continued to hunt for the perpetrators and have them prosecuted.

Microsoft had previously accused Dominique Piatti, a Czech man running the dotFREE domain hosting company, claiming his business was registering subdomains used to operate Kelihos.

However, Microsoft came to the conclusion dotFREE was simply being used by Kelihos's controllers and came to an agreement with Piatti.

Cooperation with Piatti led to this week's fresh allegations against Sabelnikov.

At its peak, the Kelihos spam engine had infected an estimated 40,000 machines.

Microsoft response

In response to Sabelnikov's claims, Microsoft said it stood by its original complaint and it looked forward to seeing the Russian in court.

"As this is a case pending in court, we cannot comment further except to say that we look forward to seeing Mr Sabelnikov in court so we can continue this discussion," Richard Boscovich, senior attorney for Microsoft's Digital Crime Unit, told the BBC.

Read on for our look at the war on botnets.

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