Infostealer .env/credential-store access followed by outbound exfil connection
Detects file access/modification/creation events targeting .env files or browser credential storage artifacts, combined with process command lines referencing API_KEY/TOKEN alongside environment-variable access patterns, indicative of infostealer malware harvesting developer secrets and browser-stored credentials, followed by an outbound network connection consistent with exfiltration.
Microsoft Sentinel (KQL)
