Phoenix
Sigma IntelligenceBeta
Back to Rules
Detectionlowtest

Office Macro File Creation

Detects the creation of a new office macro files on the systems

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
Nasreddine Bencherchali (Nextron Systems)Created Sun Jan 2391174a41-dc8f-401b-be89-7bfc140612a0windows
Log Source
WindowsFile Event
ProductWindows← raw: windows
CategoryFile Event← raw: file_event

Events for file system activity including creation, modification, and deletion.

Detection Logic
Detection Logic1 selector
detection:
    selection:
        TargetFilename|endswith:
            - '.docm'
            - '.dotm'
            - '.xlsm'
            - '.xltm'
            - '.potm'
            - '.pptm'
    condition: selection
False Positives

Very common in environments that rely heavily on macro documents

References
1
Resolving title…
github.com
2
Resolving title…
learn.microsoft.com
MITRE ATT&CK
Related Rules
SimilarDetectionlow

Office Macro File Download

Detects the creation of a new office macro files on the system via an application (browser, mail client). This can help identify potential malicious activity, such as the download of macro-enabled documents that could be used for exploitation.

Detects similar activity. Both rules may fire on overlapping events.

Rule Metadata
Rule ID
91174a41-dc8f-401b-be89-7bfc140612a0
Status
test
Level
low
Type
Detection
Created
Sun Jan 23
Author
Nasreddine Bencherchali (Nextron Systems)
Path
rules/windows/file/file_event/file_event_win_office_macro_files_created.yml
Raw Tags
attack.initial-accessattack.t1566.001
View on GitHub