CmdID

CmdID / Rules / Windows

OilRig APT Activity

A Sigma rule for process creation on Windows, from SigmaHQ’s emerging threats rules, by Florian Roth (Nextron Systems), Markus Neis, Jonhnathan Ribeiro, Daniil Yugoslavskiy, oscd.community.

critical 4 ATT&CK techniques 1 program it names

What it looks for

its detection, as SigmaHQ writes it
detection:
  selection_autoit:
    CommandLine|contains|all:
      - 'nslookup.exe'
      - '-q=TXT'
    ParentImage|endswith: '\local\microsoft\Taskbar\autoit3.exe'
  selection_schtasks:
    CommandLine|contains|all:
      - 'SC Scheduled Scan'
      - '\microsoft\Taskbar\autoit3.exe'
  selection_service:
    CommandLine|contains:
      - 'i'
      - 'u'
    Image: 'C:\Windows\system32\Service.exe'
  selection_temp:
    Image|contains: '\Windows\Temp\DB\'
    Image|endswith: '.exe'
  condition: 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 Florian Roth (Nextron Systems), Markus Neis, Jonhnathan Ribeiro, Daniil Yugoslavskiy, oscd.community, 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
T1053.005Scheduled Task/Job: Scheduled Task
T1071.004Application Layer Protocol: DNS
T1112Modify Registry
T1543.003Create or Modify System Process: Windows Service