How To Detect Video Injection for KYC

For many KYC (Know Your Customer) vendors, video stream injection is the "final boss" of fraud. It’s the process of bypassing a smartphone’s physical camera sensor to feed pre-recorded or AI-generated deepfakes directly into the application's media pipeline.

If successful, an attacker can register thousands of fraudulent accounts using stolen identities without ever showing their real face.

The good news? Most common injection tools rely on a compromised system state that Talsec RASP for Android and iOS already detects.

How Is Video Injected

Attackers typically use three main vectors:

1. Hooking: Using LSPosed or VCAM modules to intercept Camera API calls and swap the live feed for a file like virtual.mp4.

2. Emulators: Running the app in BlueStacks or Nox and using OBS VirtualCam to map a PC video feed as the "phone camera".

3. Automation: Using the Appium framework to script the entire KYC process, often utilizing plugins that instrument the app to inject images.

The Solution: Talsec's Defensive Mapping

Because these tools require specific "illegal" environments to function, Talsec’s core features act as a multi-layered filter that stops the injection before the camera even opens.

Threat Vector	Talsec Relevant Feature	Why it Works
LSPosed with VCAM Module	Root & Hook Detection	VCAM requires a rooted device (Magisk) and an active hooking framework (LSPosed/Frida) to function. Talsec can kill the session the moment it sees these artifacts.
Emulators (BlueStacks) (+ OBS)	Emulator Detection	Injections via OBS happen at the virtualization layer. Talsec detects common emulators and can block the app entirely.
Appium Framework	Automation Detection	Appium leaves traces in the uiautomator service and often requires ADB/Developer Options to be enabled, both of which Talsec detects.
Repackaged Testing Builds	App Integrity Checks	Attackers sometimes re-sign the APK to disable security for automation. Talsec’s signature and binary integrity checks prevent these modified builds from running.

*This information can be securely evaluated on the customer backend endpoint if Talsec AppiCrypt is used as well for enhanced security

Developer Pro-Tip

To maximize your KYC security, ensure you are utilizing Talsec’s full suite rather than just one module. By closing the door on Root, Hooks, Emulators, and Automation, you effectively neutralize majority of software-based video injection tools used in the wild today without needing complex video analysis processing pipelines.

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