diff --git a/rules/windows/process_creation/proc_creation_win_findstr_susp_parent.yml b/rules/windows/process_creation/proc_creation_win_findstr_susp_parent.yml new file mode 100644 index 000000000..284b57fe8 --- /dev/null +++ b/rules/windows/process_creation/proc_creation_win_findstr_susp_parent.yml @@ -0,0 +1,27 @@ +title: Findstr Suspicious ParentCommandLine +id: ccb5742c-c248-4982-8c5c-5571b9275ad3 +related: + - id: fe63010f-8823-4864-a96b-a7b4a0f7b929 + type: derived +status: experimental +description: Detects findstring commands with a suspicious ParentCommandLine +references: + - https://github.com/redcanaryco/atomic-red-team/blob/02cb591f75064ffe1e0df9ac3ed5972a2e491c97/atomics/T1057/T1057.md#atomic-test-6---discover-specific-process---tasklist +author: frack113 +date: 2023/07/06 +tags: + - attack.discovery + - attack.t1057 +logsource: + category: process_creation + product: windows +detection: + selection_findstr_img: + - Image|endswith: '\findstr.exe' + - OriginalFileName: 'FINDSTR.EXE' + selection_findstr_parent: + ParentCommandLine|contains: 'tasklist' + condition: all of selection_findstr_* +falsepositives: + - Unknown +level: medium