HackTool - SharpWSUS/WSUSpendu Execution

A Sigma rule for process creation on Windows, by @Kostastsale, Nasreddine Bencherchali (Nextron Systems).

high 1 ATT&CK technique

What it looks for

its detection, as SigmaHQ writes it

detection:
  selection_sharpwsus_commands:
    CommandLine|contains:
      - ' approve '
      - ' create '
      - ' check '
      - ' delete '
  selection_sharpwsus_flags:
    CommandLine|contains:
      - ' /payload:'
      - ' /payload='
      - ' /updateid:'
      - ' /updateid='
  selection_wsuspendu_inject:
    CommandLine|contains: ' -Inject '
  selection_wsuspendu_payload:
    CommandLine|contains:
      - ' -PayloadArgs '
      - ' -PayloadFile '
  condition: all of selection_wsuspendu_* or all of selection_sharpwsus_*

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 @Kostastsale, Nasreddine Bencherchali (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

T1210Exploitation of Remote Services

HackTool - SharpWSUS/WSUSpendu Execution

What it looks for

ATT&CK

Other rules for T1210 Exploitation of Remote Services