Researcher hides stealthy malware inside legitimate digitally signed files
A new technique allows attackers to hide malicious code inside digitally signed files without breaking their signatures and then to load that code directly into the memory of another process.
The attack method, developed by Tom Nipravsky, a researcher with cybersecurity firm Deep Instinct, might prove to be a valuable tool for criminals and espionage groups in the future, allowing them to get malware past antivirus scanners and other security products.
The first part of Nipravsky's research, which was presented at the Black Hat security conference in Las Vegas this week, has to do with file steganography -- the practice of hiding data inside a legitimate file.
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