Disabled IE Security Features

A Sigma rule for process creation on Windows, by Florian Roth (Nextron Systems).

high 1 ATT&CK technique

What it looks for

its detection, as SigmaHQ writes it

detection:
  selection1:
    CommandLine|contains|all:
      - ' -name IEHarden '
      - ' -value 0 '
  selection2:
    CommandLine|contains|all:
      - ' -name DEPOff '
      - ' -value 1 '
  selection3:
    CommandLine|contains|all:
      - ' -name DisableFirstRunCustomize '
      - ' -value 2 '
  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), 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

T1685Disable or Modify Tools

Disabled IE Security Features

What it looks for

ATT&CK

Other rules for T1685 Disable or Modify Tools