Anatomy of memory scraping credit card stealing POS malware
summary
Shows a Windows RAM‑scraper that gains SeDebugPrivilege, enumerates processes, opens the POS process and uses ReadProcessMemory and VirtualQueryEx to scan only committed memory regions for magnetic‑stripe formats. A live demo on a converted laptop POS extracts PAN, expiry, service code and CVV1 in milliseconds, validates with a Luhn check, and leaks multiple copies from different buffers. Practical defenses shown include removing internet‑exposed RDP/VNC, enforcing restricted remote admin, hardware end‑to‑end encryption (or chip‑and‑pin) and aggressive memory zeroing.
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chapters (12)
- 0:00Introduction
- 2:59POS Data Breaches
- 4:57Credit Cards
- 6:30POS Components
- 7:22POS Software
- 10:35Magnetic Stripe: Track 1
- 15:08Major Transition Types
- 16:38Data Encryption
- 18:25Attack Scenario
- 21:58RAM Scraper Attack Working
- 33:29Verify Card Number
- 43:25Mitigation
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