Detectionhightest
Suspicious Microsoft Office Child Process - MacOS
Detects suspicious child processes spawning from microsoft office suite applications such as word or excel. This could indicates malicious macro execution
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Log Source
macOSProcess Creation
ProductmacOS← raw: macos
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic1 selector
detection:
selection:
ParentImage|contains:
- 'Microsoft Word'
- 'Microsoft Excel'
- 'Microsoft PowerPoint'
- 'Microsoft OneNote'
Image|endswith:
- '/bash'
- '/curl'
- '/dash'
- '/fish'
- '/osacompile'
- '/osascript'
- '/sh'
- '/zsh'
- '/python'
- '/python3'
- '/wget'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Rule Metadata
Rule ID
69483748-1525-4a6c-95ca-90dc8d431b68
Status
test
Level
high
Type
Detection
Created
Tue Jan 31
Modified
Sat Feb 04
Author
Path
rules/macos/process_creation/proc_creation_macos_office_susp_child_processes.yml
Raw Tags
attack.executionattack.persistenceattack.t1059.002attack.t1137.002attack.t1204.002