Adversaries may attempt to blend in with legitimate traffic by spoofing browser and system attributes like operating system, system language, platform, user-agent string, resolution, time zone, etc. The HTTP User-Agent request header is a string that lets servers and network peers identify the application, operating system, vendor, and/or version of the requesting user agent.[1]

Adversaries may gather this information through System Information Discovery or by users navigating to adversary-controlled websites, and then use that information to craft their web traffic to evade defenses.[2]

References

  1. MDN contributors. (2025, July 4). User-Agent header. Retrieved October 19, 2025.
  2. Zengrui Liu, Prakash Shrestha, and Nitesh Saxena. (2021, October 19). Retrieved April 15, 2026.

Συνδεδεμένα ζητήματα

Συνδέσεις
Τύπος σύνδεσης Ζήτημα
is related to Techniques
is blocked by Detection of Spoofed User-Agent
is blocked by Audit