Windows Scheduled Task Creating Shell

 1title: Windows Scheduled Task Creating Shell
 2id: 8b1a34e3-c4d6-4af6-9836-35a0da09b85b
 3status: experimental
 4description: |
 5    Adversaries frequently establish persistence by using scheduled tasks to launch 
 6    the Windows Command Shell. Detecting this behavior is relatively straightforward. 
 7    Part of the RedCanary 2024 Threat Detection Report.    
 8references:
 9    - https://redcanary.com/threat-detection-report/techniques/windows-command-shell/
10author: RedCanary, Sigma formatting by Micah Babinski
11date: 2024/03/21
12tags:
13    - attack.execution
14    - attack.t1059
15    - attack.t1059.003
16    - attack.t1053
17logsource:
18    category: process_creation
19    product: windows
20detection:
21    selection1:
22        Image|endswith: '\schtasks.exe'
23        CommandLine|contains: 'create'
24    selection2:
25        CommandLine|contains:
26            - 'cmd.exe /c'
27            - 'cmd /c'
28    condition: all of selection*
29falsepositives:
30    - Unknown
31level: low```