Detectionmediumtest
Publisher Attachment File Dropped In Suspicious Location
Detects creation of files with the ".pub" extension in suspicious or uncommon locations. This could be a sign of attackers abusing Publisher documents
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Wed Feb 083d2a2d59-929c-4b78-8c1a-145dfe9e07b1windows
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|contains:
- '\AppData\Local\Temp\'
- '\Users\Public\'
- '\Windows\Temp\'
- 'C:\Temp\'
TargetFilename|endswith: '.pub'
condition: selectionFalse Positives
Legitimate usage of ".pub" files from those locations
References
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
3d2a2d59-929c-4b78-8c1a-145dfe9e07b1
Status
test
Level
medium
Type
Detection
Created
Wed Feb 08
Path
rules/windows/file/file_event/file_event_win_office_publisher_files_in_susp_locations.yml
Raw Tags
attack.defense-evasion