Sensitive .env File Exfiltration
Detects a process reading a .env file, which often contains sensitive credentials like API keys. This is often the first step of a data exfiltration pattern where the credentials are then sent to an attacker-controlled server. This behavior was observed in the malicious 'rankaj' OpenClaw skill. This rule should be correlated with subsequent network activity from the same process to a rare destination.
Sigma
