Detection rules › Sigma
Netcat The Powershell Version
Adversaries may use a non-application layer protocol for communication between host and C2 server or among infected hosts within a network
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1059.001 Command and Scripting Interpreter: PowerShell |
| Command & Control | T1095 Non-Application Layer Protocol |
Event coverage
| Provider | Event |
|---|---|
| PowerShell | Event ID 400 |
Rule body yaml
title: Netcat The Powershell Version
id: c5b20776-639a-49bf-94c7-84f912b91c15
related:
- id: bf7286e7-c0be-460b-a7e8-5b2e07ecc2f2
type: derived
status: test
description: Adversaries may use a non-application layer protocol for communication between host and C2 server or among infected hosts within a network
references:
- https://nmap.org/ncat/
- https://github.com/besimorhino/powercat
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1095/T1095.md
author: frack113
date: 2021-07-21
modified: 2023-10-27
tags:
- attack.command-and-control
- attack.execution
- attack.t1095
- attack.t1059.001
logsource:
product: windows
category: ps_classic_start
detection:
selection:
Data|contains:
- 'powercat '
- 'powercat.ps1'
condition: selection
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Data|contains:
- 'powercat '
- 'powercat.ps1'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Data | match |
|