Detectionhightest
Potential Arbitrary File Download Using Office Application
Detects potential arbitrary file download using a Microsoft Office application
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Nasreddine Bencherchali (Nextron Systems), Beyu Denis, oscd.communityCreated Tue May 17Updated Thu Jun 224ae3e30b-b03f-43aa-87e3-b622f4048eedwindows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
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 Logic2 selectors
detection:
selection_img:
- Image|endswith:
- '\EXCEL.EXE'
- '\POWERPNT.EXE'
- '\WINWORD.exe'
- OriginalFileName:
- 'Excel.exe'
- 'POWERPNT.EXE'
- 'WinWord.exe'
selection_http:
CommandLine|contains:
- 'http://'
- 'https://'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Techniques
Related Rules
Similar
Rule not found0c79148b-118e-472b-bdb7-9b57b444cc19
Rule Metadata
Rule ID
4ae3e30b-b03f-43aa-87e3-b622f4048eed
Status
test
Level
high
Type
Detection
Created
Tue May 17
Modified
Thu Jun 22
Path
rules/windows/process_creation/proc_creation_win_office_arbitrary_cli_download.yml
Raw Tags
attack.defense-evasionattack.t1202