According to the Bit Torrent Blog:-
Just after 6:00 a.m. Pacific time, we took the affected servers offline to neutralize the threat. Our servers are now back online and functioning normally.
We have completed preliminary testing of the malware. Upon installation, a program called ‘Security Shield” launches and pops up warnings that a virus has been detected. It then prompts a user for payment to remove the virus. We recommend anyone who downloaded software between 4:20 a.m. and 6:10 a.m. Pacific time run a security scan of their computer.
We take the security of our systems and the safety of our users very seriously. We sincerely apologize to any users who were affected.
Clarification: This only affects users who downloaded software specifically from utorrent.com or bittorrent.com between the hours above this morning. Users who previously downloaded our software are not affected.
Update #2: After further analysis, we don’t believe BitTorrent.com or the BitTorrent Mainline/Chrysalis clients were part of the incident.
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