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MediumSigmaHQJerry Shockley '@jsh0x'

NTLM Brute Force

Detects common NTLM brute force device names

Detection logic

Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
windows
Log source service
ntlm

Known benign triggers

  • Systems with names equal to the spoofed ones used by the brute force tools

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