1type: trigger
2name: sigmahq/proc_creation_win_mpcmdrun_download_arbitrary_file
3description: |
4  Detects the use of Windows Defender MpCmdRun.EXE to download files
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.OriginalFileName == 'MpCmdRun.exe' || evt.Parsed.Image endsWith '\\MpCmdRun.exe' || evt.Parsed.CommandLine contains 'MpCmdRun.exe' || evt.Parsed.Description == 'Microsoft Malware Protection Command Line Utility') && evt.Parsed.CommandLine contains 'DownloadFile' && evt.Parsed.CommandLine contains 'url')
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1218
15   - attack.t1105
16
17  label: "File Download Via Windows Defender MpCmpRun.EXE"
18  behavior : "windows:audit"
19  remediation: false
20
21scope:
22  type: ParentProcessId
23  expression: evt.Parsed.ParentProcessId
24
25