# MSNightmare/SignDrop > Proof-of-concept for a Windows CLFS local privilege escalation 0day: by manipulating object manager symbolic links, a privileged process (e.g. Windows Defender) is coerced into creating a .cnpf authentication file as SYSTEM. - Magnitude: 3.9 out of 10 — Early signal - Stars: 371 total · +28 stars measured 2026-11-14, 00:03–11:14 UTC, ≈ 57 by evening - Star trust: star growth looks organic - Category: Security · Language: C · License: MIT · Created: 2026-11-10 · Last push: 2026-11-10 - GitHub: https://github.com/MSNightmare/SignDrop · Page: https://gitnova.dev/en/r/MSNightmare/SignDrop ## Useful for - Check the CLFS authentication mode in the registry to see if the system is vulnerable - Run the PoC to obtain a SYSTEM shell on a test Windows machine - Study the exploitation chain via ServerMpUpdateEngineSignature and symbolic links ## Why it’s here - Star-counter measurements on 2026-11-14 (UTC), 00:03–11:14: 343 → 371 stars (+28). This is the change over that interval. - Estimated end-of-day forecast: about +57 stars, using observed gains and the previous day. - The repository is 4 days old and already has 371 stars. With less than two weeks of history, there's no usual pace to compare the spike against yet. - Top new repositories this week: #30. - About 10 forks a day — people are taking the code. ## Star trust Star growth looks organic. Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer. ## Numbers - Forks: 87 - Issues and pull requests: 1 - Watchers: 2 - Average over the last week: 83 per day - Usual pace: too little history (under two weeks) - Stars in the last hour (measured): 5 - Latest release: 1.0 (2026-11-10) ## Stars per day, last 5 days (oldest → newest, today is partial) 2026-11-10 … 2026-11-14: 56, 159, 92, 51, 28 ## Magnitude by day, last 3 days 11-12 6.6, 11-13 5.1, 11-14 3.9 ## Spotted in now - Top new repositories this week: #30 ## Similar by description 1. **arbuthnot-eth/simpleMCP** — 0.0 · Quiet · TypeScript · Not enough measurements today Proof of concept for cloudflare worker mcp server Full card: https://gitnova.dev/en/r/arbuthnot-eth/simpleMCP.md --- Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score. Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast. Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself. Data as of 2026-11-14 11:22 UTC, updated every 30 minutes.