Picture Paints a Thousand Codes: Dissecting Image-Based Steganography in a .NET (Quasar) RAT Loader
Steganography is the art of hiding information inside a seemingly ordinary, legitimate object so that no one suspects anything is hidden. The technique T1027.003 has been around for a long time and is increasingly used by malware authors and threat actors to avoid detection. This involves hiding malicious payloads inside innocent-looking files such as images, audio, or documents. By embedding malware in these files, attackers can bypass traditional security tools that scan for obvious threats.