Sysmon Comparison
  • 12 Nov 2024
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Sysmon Comparison

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Article summary

System Monitor, or "Sysmon", is a Windows server and device driver that monitors and logs operating system activity. It is part of the Sysinternals toolkit. More information on Sysmon can be found here.

Many organizations deploy Sysmon and structure their detection events around Sysmon-specific event logs, which can offer granular insight into operating system changes. LimaCharlie's EDR telemetry can offer similar events, allowing you to write detections against these events directly.

A comparison of LimaCharlie vs. Sysmon is as follows:

Sysmon Event

LimaCharlie Event

Event ID 1 (Process Creation)

NEW_PROCESS

Event ID 3 (Network Connection)

NEW_*_CONNECTION

Event ID 5 (Process terminated)

TERMINATE_PROCESS

Event ID 6 (Driver Loaded)

MODULE_LOAD, CODE_IDENTITY, DRIVER_CHANGE

Event ID 7 (Image loaded)

MODULE_LOAD, CODE_IDENTITY

Event ID 8 (Create remote thread)

NEW_REMOTE_THREAD

Event ID 10 (ProcessAccess)

REMOTE_PROCESS_HANDLE

Event ID 11 (FileCreate)

FILE_CREATE

Event ID 12 (RegistryEvent object create and delete)

REGISTRY_CREATE, REGISTRY_DELETE

Event ID 13 (RegisterEvent value set)

REGISTRY_WRITE

Event ID 14 (RegistryEvent rename)

REGISTRY_CREATE

Event ID 17 (PipeEvent Created)

NEW_NAMED_PIPE

Event ID 18 (PipeEvent Connected)

OPEN_NAMED_PIPE

Why not both? ¯\(ツ)

Note, LC's Endpoint Agent is easily able to consume Sysmon events as well.

Executable Tracking

Recent updates to Sysmon also include the ability to capture and store information about binaries identified on a system. You can replicate this functionality with LimaCharlie with BinLib. More information on that can be found here.


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