Detectionhightest
File Download Via Windows Defender MpCmpRun.EXE
Detects the use of Windows Defender MpCmdRun.EXE to download files
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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:
- OriginalFileName: 'MpCmdRun.exe'
- Image|endswith: '\MpCmdRun.exe'
- CommandLine|contains: 'MpCmdRun.exe'
- Description: 'Microsoft Malware Protection Command Line Utility'
selection_cli:
CommandLine|contains|all:
- 'DownloadFile'
- 'url'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Rule Metadata
Rule ID
46123129-1024-423e-9fae-43af4a0fa9a5
Status
test
Level
high
Type
Detection
Created
Fri Sep 04
Modified
Thu Nov 09
Author
Path
rules/windows/process_creation/proc_creation_win_mpcmdrun_download_arbitrary_file.yml
Raw Tags
attack.defense-evasionattack.t1218attack.command-and-controlattack.t1105