The security researcher, who played hero in stopping the spread of the WannaCry ransom-ware back in May, was arrested last Wednesday for allegedly creating a virus of his own, CNET reported.

Marcus Hutchins, who goes by the name MalwareTech, was arrested in Las Vegas as he was about to head home. Hutchins was in the city for Defcon – a four-day conference where security experts and researchers gather to share information.

marcus hutchins wannacry hero arrested
Marcus Hutchins stopped the WannaCry ransom-ware back in May.

According to the CNET sources, The US government has accused Hutchins of creating “Kronos”, a Russian banking Trojan that first popped up back in 2014 and was used to stole from online banks. According to Hutchins’ charge sheet, the researcher and his unnamed partner sold the virus on the dark-net.

According to the further sources, the investigators had been looking into him for the last two years and his charges are related to alleged sales between July 2014 and July 2015.

Hutchins, the online hero who discovered a kill switch built into the WannaCry ransom-ware, is charged with conspiracy to commit computer fraud and abuse, distributing an electronic communication interception device, and attempting to access a computer without authorization.