Renamed Schtasks Execution

detection:
  filter_main_cmd:
    CommandLine|contains: 'schtasks'
  filter_main_img:
    Image|endswith: '\schtasks.exe'
  filter_optional_cmd_openfiles:
    CommandLine|contains|all:
      - 'openfiles'
      - ' /query '
      - ' /fo'
  selection_cmd_flags:
    CommandLine|contains|windash:
      - ' /tn '
      - ' /tr '
      - ' /sc '
      - ' /st '
      - ' /ru '
      - ' /fo '
  selection_cmd_operation:
    CommandLine|contains|windash:
      - ' /create '
      - ' /delete '
      - ' /query '
      - ' /change '
      - ' /run '
      - ' /end '
  selection_pe:
    OriginalFileName: 'schtasks.exe'
  condition: (all of selection_cmd_* and not filter_main_cmd and not filter_optional_cmd_openfiles) or (selection_pe and not filter_main_img)

The rule’s detection, its selections and fields in order of name. The whole rule, with its references and false positives, is on SigmaHQ, by Swachchhanda Shrawan Poudel (Nextron Systems), under the Detection Rule License 1.1. CmdID evaluates it on a command line alone: a test on what a command line cannot show, such as the parent process or the user, is not met.

None of the everyday examples and documented commands on CmdID’s program pages trips it. To see whether a command line does, paste it into CmdID.