Malicious InternalMonologue NTLM Downgrade Execution via process_creation

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1003OS Credential Dumping
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects execution of the InternalMonologue tool that abuses NTLM authentication downgrade to retrieve Net-NTLM responses without touching LSASS. Alloy Taurus used InternalMonologue to gather NTLM material during their government intrusion, making the tool name a reliable credential-access indicator.

Reporting behind it

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Malicious InternalMonologue NTLM Downgrade Execution via process_creation

Pivot detection · T1003 · 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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