Elastic Defend high stable eql
Windows Defender Exclusions by Path
Identifies modifications to the Windows Defender configuration settings to exclude a recently dropped or modified executable.
Detection Logic
sequence with maxspan=1m
[process where event.action == "start" and
(process.Ext.relative_file_creation_time <= 500 or process.Ext.relative_file_name_modify_time <= 500) and
not (process.executable : ("?:\\Program Files (x86)\\*.exe", "?:\\Program Files\\*.exe") and process.code_signature.trusted == true) and
not (process.code_signature.subject_name == "Datto Inc" and process.code_signature.trusted == true)
] by process.name
[registry where
registry.path :
("HKLM\\SOFTWARE\\Microsoft\\Windows Defender\\Exclusions\\Paths\\*",
"HKLM\\SOFTWARE\\Microsoft\\Windows Defender\\Exclusions\\Processes\\*")] by registry.value Field Validations
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