Detection approach
WebGL pixel fidelity anomaly detected. The browser claims to be using a hardware GPU, but a 3D shader rendering test generated a high pixel noise ratio. This mathematically proves the usage of a CPU software renderer (like SwiftShader) in a VM environment.
How this helps detect bots
Collect this signal alongside session context, request metadata, and other independent indicators. A single anomaly is a lead, not a verdict; corroborating anomalies make automated traffic more likely.
Legitimate traffic to consider
Corporate employees browsing via virtual workspaces (Citrix, VMware Horizon, Amazon WorkSpaces).
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