DOWN — AI Security Scanner

A complete Windows security scanner with a GUI dashboard and Claude AI threat analysis. Built in Rust + React with Tauri 2.0.

No bloat. No telemetry. No subscriptions. Your data stays on your PC.

What It Does

Module	What It Scans
Processes	Running processes against 200+ known malware names, suspicious paths, cryptominer CPU usage
Startup	Registry Run keys, startup folders, scheduled tasks for persistence
Files	Downloads, Temp, AppData for known malware hashes, double extensions (e.g. invoice.pdf.exe)
Browser Extensions	Chrome, Edge, Firefox for known malicious IDs and excessive permissions
Network	Hosts file tampering, DNS hijacking, proxy hijacking, suspicious connections
Scareware	Fake antivirus, fake optimizers, fake cleaners, Windows Defender tampering

Features

• GUI Dashboard — Dark-themed cockpit with scan controls, threat cards, severity badges
• Claude AI Cockpit — Send scan results to Claude for intelligent threat analysis (bring your own API key)
• NUKE Mode — One-click aggressive removal: uninstalls programs, kills processes, deletes scheduled tasks, cleans registry
• Browser Fix — Reset hijacked homepage, search engine, remove bad extensions across Chrome, Edge, Firefox
• Auto-Elevation — Requests admin access via UAC when needed for removals
• Quarantine — Safely isolate threats with restore capability for false positives
• Signature Updates — Download latest threat databases

Download

Go to the Releases page and download one of the following:

File	Description
down.exe	Portable executable — just download and run, no installation needed
DOWN-Security-Scanner-v0.3.0-windows.zip	Installer package — extract, right-click install.bat → Run as administrator. Creates a desktop shortcut and adds down to your PATH

Quick start (portable)

1. Download down.exe from the latest release
2. Double-click to run — the dashboard window opens
3. Windows may show a SmartScreen warning since the app isn't code-signed — click More info → Run anyway

Installer

1. Download DOWN-Security-Scanner-v0.3.0-windows.zip from the latest release
2. Extract the zip
3. Right-click install.bat → Run as administrator
4. A desktop shortcut is created and you can run down from any terminal

Build From Source

Requires Rust and Node.js.

# Build the frontend
cd ui && npm install && npm run build && cd ..

# Build the app
cargo build --release

The binary appears at target/release/down.exe (Windows).

For Windows cross-compilation from Linux:

rustup target add x86_64-pc-windows-msvc
cargo build --release --target x86_64-pc-windows-msvc

Usage

GUI Mode (default)

Just run down.exe — the dashboard window opens.

CLI Mode

The scanner modules also work from command line:

down.exe --scan              # Full scan
down.exe --quick             # Quick scan (processes + startup)
down.exe --nuke              # Scan + remove all threats
down.exe --fix-browser       # Reset hijacked browser settings
down.exe --quarantine        # Scan + quarantine threats
down.exe --list-quarantine   # Show quarantined items
down.exe --restore <ID>      # Restore a false positive
down.exe --update-sigs       # Download latest signatures

Claude AI Integration

1. Get an API key from console.anthropic.com
2. Open the "Claude AI" tab in the app
3. Paste your API key (stored locally only)
4. Click "Analyze Threats" after a scan

Claude reads the threat summary (never file contents) and gives you plain-English advice about what's dangerous, what's safe, and what to remove.

License

MIT