![]() ![]() Spread through email attachments, this ransomware has been seen targeting companies through phishing attacks.Ĭryptolocker will encrypt users’ files using asymmetric encryption, which requires both a public and private key. This ransomware is particularly nasty because infected users are in danger of losing their personal files forever. Just last month, antivirus companies discovered a new ransomware known as Cryptolocker. You can read the full blog comparing the two here. ![]() Update : A new version of Cryptolocker-dubbed Cryptolocker 2.0-has been discovered by ESET, although researchers believe it to be a copycat of the original Cryptolocker after noting large differences in the program's code and operation. Continue to maintain a strong security posture, to include updating Antivirus/Anti-malware definitions, and avoiding unknown or unforeseen email attachments, even if you know the sender.įor more information, read the full announcement from the DOJ here. It's worth stating that users still need to protect themselves from Cryptolocker despite its recent interference. While the C2 infrastructure is currently under the control of Law Enforcement, this is likely to only be a temporary disability of the malware until new servers are online. “We succeeded in disabling Gameover Zeus and Cryptolocker only because we blended innovative legal and technical tactics with traditional law enforcement tools.”, said Deputy Attorney General James Cole in today's announcement.Įvgeniy Bogachev was identified as a leader of cyber criminals based in Russia and Ukraine responsible for the development and operation of both the Gameover Zeus and Cryptolocker schemes. In addition to this effort, the DOJ announced an another joint-effort that involved seizing computer servers used by the Cryptolocker ransomware. Update : Today the US Department of Justice (DOJ) announced an effort to disrupt the Gameover Zeus Botnet. ![]()
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