Launch-VsDevShell.PS1 Proxy Execution

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

medium 1 ATT&CK technique

What it looks for

its detection, as SigmaHQ writes it

detection:
  selection_flags:
    CommandLine|contains:
      - 'VsWherePath '
      - 'VsInstallationPath '
  selection_script:
    CommandLine|contains: 'Launch-VsDevShell.ps1'
  condition: all 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 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.

Command lines that trip it

documented abuse, read by CmdID

The commands LOLBAS or GTFOBins documents for launch-vsdevshell.ps1 trip it: each is on its program’s page, read by CmdID.

ATT&CK

the techniques it is tagged with

T1216.001System Script Proxy Execution: PubPrn

Launch-VsDevShell.PS1 Proxy Execution

What it looks for

Command lines that trip it

ATT&CK

Other rules for T1216.001 System Script Proxy Execution: PubPrn