Sigma rule: Netcat The Powershell Version - PowerShell Module

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-f9996641cb15, updated 2023-01-20T00:00:00.000Z.

SigmaHQ marks this rule as deprecated.

Rule

Title
Netcat The Powershell Version - PowerShell Module
Status
deprecated
Level
medium
Author
frack113
Date
2021/07/21
Modified
2023/01/20
File
deprecated/windows/posh_pm_powercat.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Adversaries may use a non-application layer protocol for communication between host and C2 server or among infected hosts within a network

Log source

product
windows
category
ps_module
definition
Requirements: PowerShell Module Logging must be enabled

Detection

selection:
    ContextInfo|contains:
        - 'powercat '
        - 'powercat.ps1'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.command_and_control
  • attack.t1095

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/deprecated/windows/posh_pm_powercat.yml

Sources and licences

  • SigmaHQ

    "Netcat The Powershell Version - PowerShell Module" by frack113 (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/deprecated/windows/posh_pm_powercat.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Netcat The Powershell Version - PowerShell Module",
entity page, dataset version ref-f9996641cb15, updated 2023-01-20T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/bf7286e7-c0be-460b-a7e8-5b2e07ecc2f2 (accessed 2026-11-03).
Underlying source: SigmaHQ rule bf7286e7-c0be-460b-a7e8-5b2e07ecc2f2, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.