How I built a lightweight standalone behavioral anti-stealer to protect my Windows environment

Short summary

A developer built an open-source, Python-based behavioral anti-stealer for Windows that monitors process lineage, cryptographic integrity, protected storage access, and CPU execution metrics every 5 seconds to block infostealers like Lumma and RedLine. The tool runs at 0-2% CPU overhead with no signature databases or cloud telemetry, relying purely on local host and socket heuristics. The author seeks community feedback on polling interval adequacy and false-positive edge cases in process lineage tracking.

• •Open-source Python anti-stealer (~9MB) detects infostealers via process lineage, integrity checks, and storage auditing
• •Runs at 0-2% CPU on legacy hardware with no cloud telemetry or signature databases
• •Author asks community about 5-second polling interval safety and false-positive edge cases

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