uberAgent

LOLBAS Monitoring

July 9, 2024

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LOLBAS stands for Living Off the Land Binaries And Scripts, a type of activity that misuses tools and executables that are already there because they are part of the operating system. To cite the LOLBAS’ project’s criteria, a LOLBin/lib/script must:

Be a Microsoft-signed file, either native to the OS or downloaded from Microsoft.
Have extra "unexpected" functionality. It is not interesting to document intended use cases.
Have functionality that would be useful to an APT or red team.

The ESA Threat Detection rules for monitoring LOLBAS activity are vast limits vendor rules.

LOLBAS Rules

The rules in this section detect suspicious behavior related to operating system binaries.

Unusual child processes and DLL loads
Detect starts from non-default locations
Detect proxy execution
Detect UAC bypass
Detect csc/jsc compile
Detect execute from alternate data streams
Detect AWL bypass
Detect encode and decode operations
Detect copy operations
Detect download operations

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LOLBAS Monitoring

July 9, 2024

Contributed by:

July 9, 2024

Contributed by:

LOLBAS Monitoring

LOLBAS Rules

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