Bypassing Android Hardware Attestation from the Analyst's Chair
Summary
This article dissects Android hardware attestation (KeyMint/KeyMaster, RootOfTrust) and explains how a relay-based bypass can make a rooted device appear healthy to a backend. It details a replicable setup: a clean oracle device, a Frida-based instrumented relay, and a backend validator, followed by mitigations to bind attestation to the app and require proof-of-possession for signing.