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Owners of PCs, locked by Petya have already paid $12,000 in Bitcoin to hackers to try get their files back but without any luck.
Cyberattack started on Tuesday with locking up Ukrainian governmental and bank PCs, then it came to Russian and hacked computers of big oil companies.
In order to get their files back, Petya's victims have to send 300$ in Bitcoin to hackers' wallet and send a message with Bitcoin wallet ID and "personal installation key", a unique ID generated by the ransomware, to a dedicated email address.
Photo of a hacked PC
According to Blockchain.info, there were 40 transaction to hacker's wallet already. With a little math, we can figure out that it is 12,000 $.
But the provider of hackers' email recently locked it up. So victims can send messages to it, nor hackers can't check it.
Also, Symatec had found the way to protect PC from a Petya.