Summary

Evasion techniques in API security are part of a complex attacker’s toolset, designed to bypass detection and compromise systems. Obfuscation tactics such as symbol renaming and code splitting make malicious code unrecognizable to signature-based defenses. Encoding, encryption, and steganography further conceal data using base64 encoding or encryption algorithms or hiding payloads within seemingly harmless data. Polymorphism adds another layer of complexity by constantly changing attack payloads, requiring advanced behavioral analysis and machine learning for detection. While defenders have tools such as Suricata, YARA, Darktrace, and Cylance to counter these techniques, a multi-layered approach is crucial. This includes signature updates, heuristic analysis, payload sandboxing, a security culture, access control enforcement, and the principle of least privilege.

In conclusion, the utilization of evasion techniques in API security underscores the ever-evolving nature...