1type: trigger
2name: sigmahq/proc_creation_win_lolbin_printbrm
3description: |
4  Detects the execution of the LOLBIN PrintBrm.exe, which can be used to create or extract ZIP files. PrintBrm.exe should not be run on a normal workstation.
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.Image endsWith '\\PrintBrm.exe' && evt.Parsed.CommandLine contains ' -f' && evt.Parsed.CommandLine contains '.zip')
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1105
15   - attack.t1564.004
16
17  label: "PrintBrm ZIP Creation of Extraction"
18  behavior : "windows:audit"
19  remediation: false
20
21scope:
22  type: ParentProcessId
23  expression: evt.Parsed.ParentProcessId
24
25