QNodeService is a new, undetected malware sample written in Node.js, which is an unusual choice for malware authors. The malware has functionality that enables it to download/upload/execute files, steal credentials from Chrome/Firefox browsers, and perform file management, among other things.
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We dug deeper into the behavior of Geost, a trojan targetting Russian banks, by reverse engineering a sample of the malware. The trojan employed several layers of obfuscation, encryption, reflection, and injection of non-functional code segments that made it more difficult to reverse engineer.
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We recently found and analyzed a malicious malware variant that disguised itself as a legitimate Mac-based trading app called Stockfolio. We found two variants of the malware family. The first one contains a pair of shell scripts and connects to a remote site to decrypt its encrypted codes while the second sample, despite using a simpler routine involving a single shell script, is actually incorporates a persistence mechanism.
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We first detected the banking malware EMOTET back in 2014, we looked into the banking malware’s routines and behaviors and took note of its information stealing abilities via network sniffing. After a period of relative inactivity, it appears it’s making a comeback with increased activity from new variants that have the potential to unleash different types of payloads in the affected system.
Read MoreDetecting banking malware has become part and parcel of the security industry, so cybercriminals are continuously looking to gain the upper hand in the battle against the financial industry and security vendors. In the BlackHat presentation Winning the Online Banking War last August 5, Sean Park proposed the use of a new online banking security framework…
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