Tag: cryptolocker
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VB2014 paper: Design to discover: security analytics with 3D visualization engine
Thibault Reuille and Dhia Mahjoub use DNS data to look for clusters of malicious domains. Since the close of the VB2014 conference in Seattle in October, we have been sharing VB2014 conference papers as well as video recordings of the presentations. Today, we have added ‘Design to discover: security analytics with 3D visualization engine’ by…
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Researchers release CryptoLocker decryption tool
Tool uses private keys found in database of victims. Please note : this blog post was written in August 2014 and refers to a particular kind of encryption-ransomware that was active until June 2014. The tools mentioned are unlikely to work to decrypt newer versions of ransomware, including those branded as ‘CrytpoLocker’. The CryptoLocker ransomware…
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Game over for GameOver Zeus botnet?
Coordinated effort against gang that’s also behind CryptoLocker ransomware. A large, coordinated effort involving law enforcement, security vendors and various security researchers, has caused serious disruption to both the GameOver Zeus botnet and the CryptoLocker ransomware. GameOver Zeus is a particularly sophisticated variant of the Zeus trojan. Rather than a centralised command and control infrastructure,…
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NCA issues alert on CryptoLocker ransomware
Malware demands $1,000 ransom to decrypt files. This weekend, the UK’s National Crime Agency (NCA) issued an alert about the ‘CryptoLocker’ ransomware – following a similar alert from US-CERT 10 days earlier. CryptoLocker is a particularly nasty piece of malware. Once it has infected a machine, it searches for files of any of 70-odd formats,…