Hub configuration

Name: Suspicious Use of CSharp Interactive Console
Author: sigmahq

More info

Suspicious Use of CSharp Interactive Console Detection Scenario by sigmahq | CrowdSec Hub

« Suspicious Use of CSharp Interactive Console »
v0.2 by sigmahq / proc_creation_win_csi_use_of_csharp_console
Attack scenariowindowsNot spoofableLow confidence

Detects the execution of CSharp interactive console by PowerShell

Installation

cscli scenarios install sigmahq/proc_creation_win_csi_use_of_csharp_console

YAML Configuration

1type: trigger
2name: sigmahq/proc_creation_win_csi_use_of_csharp_console
3description: |
4  Detects the execution of CSharp interactive console by PowerShell
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.Image endsWith '\\csi.exe' && (evt.Parsed.ParentImage endsWith '\\powershell.exe' || evt.Parsed.ParentImage endsWith '\\pwsh.exe' || evt.Parsed.ParentImage endsWith '\\powershell_ise.exe') && evt.Parsed.OriginalFileName == 'csi.exe')
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1127
15
16  label: "Suspicious Use of CSharp Interactive Console"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24

Hub configuration

« Suspicious Use of CSharp Interactive Console »v0.2 by sigmahq / proc_creation_win_csi_use_of_csharp_consoleAttack scenariowindowsNot spoofableLow confidenceMITRE:t1127

« Suspicious Use of CSharp Interactive Console »
v0.2 by sigmahq / proc_creation_win_csi_use_of_csharp_console
Attack scenariowindowsNot spoofableLow confidence