AI Cyber Defense / Endpoint, lateral movement and ransomware defense
AI Cyber Defense: Verify clean endpoint recovery beyond reinstall completion
Rebuild from a trusted image and remove the entry path before reconnecting. Restore only reviewed data and configuration, then monitor against explicit return-to-service criteria.
Environment and inputs: Managed Windows and Linux endpoints, EDR telemetry, remote administration, file services and protected recovery systems.
Scenario and goal
A reimaged machine can be compromised again through unchanged identities, automation or restored unsafe configuration.
Why it matters
For this scenario, expect an attacker to vary scripts and executable packaging while reusing valid accounts and ordinary administration channels. The useful evidence is the relationship between the process, identity, destination and authorized task. A signed binary can perform an unauthorized action, and a new hash does not necessarily represent a new behavior. Protect credentials and administration boundaries alongside execution controls.
Evidence to collect
Collect rebuild provenance, patch status, credential rotation, persistence checks and the first post-recovery network and identity events.
Validate with an authorized exercise
Recover a disposable host and validate each criterion; simulate a stale compromised credential in a test dependency and confirm reconnection is held until that dependency is corrected.
Rollout and checks
Establish approved maintenance examples before enabling enforcement and verify event collection from the affected host class. Preserve essential recovery connectivity and define the consequence of an isolation or policy failure. After remediation, verify both the original access boundary and any credentials or automation that could recreate the condition. Rebuilding a host alone does not validate those dependencies.
Scope and limits
This guide proposes a defensive test; it is not a tested production design. Check platform support and local requirements. References explain the mechanisms but do not certify the design. Behavior alone does not prove AI involvement.