Suspicious File Characteristics Due to Missing Fields

A Sigma rule for process creation on Windows, by Markus Neis, Sander Wiebing.

medium 1 ATT&CK technique

What it looks for

its detection, as SigmaHQ writes it

detection:
  folder:
    Image|contains: '\Downloads\'
  selection1:
    Description: '\?'
    FileVersion: '\?'
  selection2:
    Description: '\?'
    Product: '\?'
  selection3:
    Company: '\?'
    Description: '\?'
  condition: (selection1 or selection2 or selection3) and folder

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 Markus Neis, Sander Wiebing, 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.

ATT&CK

the techniques it is tagged with

T1059.006Command and Scripting Interpreter: Python

Suspicious File Characteristics Due to Missing Fields

What it looks for

ATT&CK

Other rules for T1059.006 Command and Scripting Interpreter: Python