Today we've been (eagerly) going through the associated documents — and the costs attributed to GOZ are very striking.
Examples of GameOver victims:
SEVEN MILLION dollars from one Florida bank? Wow.
Examples of CryptoLocker (ransomware dropped by GOZ) victims:
A restaurant in Florida had its recipes encrypted?
Now THAT is some "secret sauce"!
$30,000 in damage is really a significant cost for such a business.
According to this FBI graphic, CryptoLocker made $30 million in payments during the last four months of 2013:
So here's the thing about GOZ… it's a peer-to-peer botnet and is highly resistant to "takedowns". Law enforcement action is currently blocking critical command and control infrastructure — but it could be only a matter of time before slavik regains ownership via side channels. In the meanwhile, remediation efforts are underway. IP addresses related to GOZ are being directed to removal tools.