CmdID

CmdID / Rules / Windows

HackTool - Jlaive In-Memory Assembly Execution

A Sigma rule for process creation on Windows, by Jose Luis Sanchez Martinez (@Joseliyo_Jstnk).

medium 1 ATT&CK technique 5 programs it names

What it looks for

its detection, as SigmaHQ writes it
detection:
  parent_selection:
    ParentCommandLine|endswith: '.bat'
    ParentImage|endswith: '\cmd.exe'
  selection1:
    CommandLine|contains|all:
      - 'powershell.exe'
      - '.bat.exe'
    Image|endswith: '\xcopy.exe'
  selection2:
    CommandLine|contains|all:
      - 'pwsh.exe'
      - '.bat.exe'
    Image|endswith: '\xcopy.exe'
  selection3:
    CommandLine|contains|all:
      - '+s'
      - '+h'
      - '.bat.exe'
    Image|endswith: '\attrib.exe'
  condition: parent_selection and (1 of selection*)

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 Jose Luis Sanchez Martinez (@Joseliyo_Jstnk), 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.

Programs and files it names

their pages here

ATT&CK

the techniques it is tagged with
T1059.003Command and Scripting Interpreter: Windows Command Shell