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CmdID / Rules / Linux

Named Pipe Created Via Mkfifo

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

low 1 program it names 2 everyday examples trip it

What it looks for

its detection, as SigmaHQ writes it
detection:
  selection:
    Image|endswith: '/mkfifo'
  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

everyday examples from tldr-pages, CC BY 4.0, each read by CmdID

Create a named pipe at a given path on the page for mkfifo

mkfifo path/to/pipeIdentify

Share your terminal session in real-time on the page for mkfifo

mkfifo path/to/pipe; script --flush path/to/pipeIdentify

Programs and files it names

their pages here
mkfifo