A look at Steganography

DDoS agents, and malware in general are in a constant arms race with anti-virus scanners to outwit each other. Massively networked botnets require not only the ability to store malicious executables but also send and receive traffic covertly. Steganography can fulfill both these needs. While cryptographic methods (such as strong encryption or polymorphism) use math to re-arrange malicious data so it’s more difficult to detect,  steganography bypasses this completely by making the malicious data appear completely benign.

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