Federal Judge Sentences Russian Spammer to Time Served Though prosecutors said Peter Levashov’s botnet spamming services helped facilitate other crimes, the judge credited the Russian national’s admission of responsibility. (CN) — Prosecutors once described Peter Levashov as one of the internet’s most notorious spammers, a “bot master” of a network of tens of thousands of computers infected with malware that at one point could have spammed inboxes with 4 billion messages in a day. On Tuesday afternoon, saying he was impressed with Levashov’s “prompt and complete acceptance of responsibility,” U.S. District Judge Robert Chatigny sentenced the Russian national to time served.