1type: trigger
2name: sigmahq/proc_creation_win_gup_download
3description: |
4  Detects execution of the Notepad++ updater (gup) from a process other than Notepad++ to download files.
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\GUP.exe' || evt.Parsed.OriginalFileName == 'gup.exe') && evt.Parsed.CommandLine contains ' -unzipTo ' && evt.Parsed.CommandLine contains 'http' && not (evt.Parsed.ParentImage endsWith '\\notepad++.exe'))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1105
15
16  label: "File Download Using Notepad++ GUP Utility"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24