CmdID

CmdID / Rules / Windows

Execute Pcwrun.EXE To Leverage Follina

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

high 1 ATT&CK technique 1 program it names

What it looks for

its detection, as SigmaHQ writes it
detection:
  selection:
    CommandLine|contains: '../'
    Image|endswith: '\pcwrun.exe'
  condition: 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 pcwrun.exe trip it: each is on its program’s page, read by CmdID.

Programs and files it names

their pages here
pcwrun.exe

ATT&CK

the techniques it is tagged with
T1218System Binary Proxy Execution

Other rules for T1218 System Binary Proxy Execution

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