I built Nightcrawler, an open-source autonomous penetration-testing agent that runs entirely on an Android phone.
The project started with a question: how much of a real pentesting workflow could I run locally on relatively old mobile hardware, without relying on a cloud model or API?
Nightcrawler runs a 1.2B-parameter model locally on the Adreno GPU of a OnePlus 8. The model chooses targets and tools, while a separate scope-enforcement proxy validates every command before execution. The system maintains per-host memory in SQLite, rotates between targets, matches detected versions against a local CVE database, executes multi-step playbooks, and generates a structured report.
A few implementation details that may be interesting:
Local inference runs at roughly 115 prompt tokens/sec and 13 generated tokens/sec.
The small model only produces a usable command around 50% of the time, so much of the engineering is recovery logic, duplicate detection, persistent memory, and deterministic playbooks.
Every command passes through a separate scope and safety layer rather than trusting the model to remain in scope.
The project includes a dry-run mode, so the agent loop can be tested without executing real network commands or owning the phone hardware.
I've had it running on my home network for the past 3 months uninterrupted
mr_mitm•13m ago
Have you ever tested this on a real corporate network?
kreidema•24m ago
I completely forgot that AI can very much also attack networks/devices in the wild. Interesting project.
oquidave•7m ago
Why phone? This cuts out a lot of phones. Why not on a computer?
NickySlicks•1h ago
The project started with a question: how much of a real pentesting workflow could I run locally on relatively old mobile hardware, without relying on a cloud model or API?
Nightcrawler runs a 1.2B-parameter model locally on the Adreno GPU of a OnePlus 8. The model chooses targets and tools, while a separate scope-enforcement proxy validates every command before execution. The system maintains per-host memory in SQLite, rotates between targets, matches detected versions against a local CVE database, executes multi-step playbooks, and generates a structured report.
A few implementation details that may be interesting:
Local inference runs at roughly 115 prompt tokens/sec and 13 generated tokens/sec. The small model only produces a usable command around 50% of the time, so much of the engineering is recovery logic, duplicate detection, persistent memory, and deterministic playbooks. Every command passes through a separate scope and safety layer rather than trusting the model to remain in scope. The project includes a dry-run mode, so the agent loop can be tested without executing real network commands or owning the phone hardware. I've had it running on my home network for the past 3 months uninterrupted
mr_mitm•13m ago