CmdID / Rules / Windows

Bypass UAC via WSReset.exe

A Sigma rule for process creation on Windows, by E.M. Anhaus (originally from Atomic Blue Detections, Tony Lambert), oscd.community, Florian Roth.

high 1 ATT&CK technique 1 program it names

What it looks for

its detection, as SigmaHQ writes it

detection:
  filter:
    - Image|endswith: '\conhost.exe'
    - OriginalFileName: 'CONHOST.EXE'
  selection:
    ParentImage|endswith: '\wsreset.exe'
  condition: selection and not filter

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 E.M. Anhaus (originally from Atomic Blue Detections, Tony Lambert), oscd.community, Florian Roth, 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

conhost.exe

ATT&CK

the techniques it is tagged with

T1548.002Abuse Elevation Control Mechanism: Bypass User Account Control

Bypass UAC via WSReset.exe

What it looks for

Programs and files it names

ATT&CK

Other rules for T1548.002 Abuse Elevation Control Mechanism: Bypass User Account Control