Suspicious Browser Launch With Remote Debugging for Cookie Theft (via process_creation)

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1539Steal Web Session Cookie
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a Chromium-based browser launched with both a remote debugging port and a custom user data directory. Phantom Goblin abuses this to extract cookies and session data directly from the browser.

Reporting behind it

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Suspicious Chrome Launched With Remote Debugging Port For Cookie Theft

Suspicious Browser Launch With Remote Debugging for Cookie Theft (via process_creation)

Pivot detection · T1539 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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