Session Hijacking Attempt

The HTTP protocol lacks a built-in mechanism to maintain user authentication across multiple web requests. Web applications issue unique authentication tokens or session cookies to maintain active sessions without repeated login prompts. Session hijacking occurs when an attacker steals one of these active tokens by compromising a device and reuses the token from their external device, which enables the attacker to identify as the previously authenticated user.

The new connection generates network traffic that does not match previously identified client characteristics, such as TLS versions or supported cipher suites. Changes in client characteristics indicate the token was replayed from a new device. If successful, the attacker gains unauthorized access to perform malicious actions as the legitimate user.