
Summary
Detects usage of curl to upload files to known file sharing domains, which may indicate data exfiltration. The rule flags Windows process creations where curl.exe is invoked with command-line arguments indicative of HTTP file uploads (e.g., --form, --upload-file, --data, -X POST, --request POST) targeting known file-sharing domains (e.g., 0x0.st, file.io, wetransfer.com, uploadfiles.io, pastebin, transfer.sh, etc.). It considers both the image name (curl.exe) and the command line, and requires matching domains to trigger. High severity is appropriate due to potential data exfiltration; legitimate admin/developer file uploads to these services are possible false positives.
Categories
- Endpoint
- Network
- Windows
Data Sources
- Process
- Image
- Command
Created: 2026-03-29