Hub configuration

Name: Shell32 DLL Execution in Suspicious Directory
Author: sigmahq

More info

Shell32 DLL Execution in Suspicious Directory Detection Scenario by sigmahq | CrowdSec Hub

« Shell32 DLL Execution in Suspicious Directory »
v0.2 by sigmahq / proc_creation_win_rundll32_shell32_susp_execution
Attack scenariowindowsNot spoofableLow confidence

Detects shell32.dll executing a DLL in a suspicious directory

Installation

cscli scenarios install sigmahq/proc_creation_win_rundll32_shell32_susp_execution

YAML Configuration

1type: trigger
2name: sigmahq/proc_creation_win_rundll32_shell32_susp_execution
3description: |
4  Detects shell32.dll executing a DLL in a suspicious directory
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\rundll32.exe' || evt.Parsed.OriginalFileName == 'RUNDLL32.EXE') && evt.Parsed.CommandLine contains 'shell32.dll' && evt.Parsed.CommandLine contains 'Control_RunDLL' && (evt.Parsed.CommandLine contains '%AppData%' || evt.Parsed.CommandLine contains '%LocalAppData%' || evt.Parsed.CommandLine contains '%Temp%' || evt.Parsed.CommandLine contains '%tmp%' || evt.Parsed.CommandLine contains '\\AppData\\' || evt.Parsed.CommandLine contains '\\Temp\\' || evt.Parsed.CommandLine contains '\\Users\\Public\\'))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1218.011
15
16  label: "Shell32 DLL Execution in Suspicious Directory"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24

Hub configuration

« Shell32 DLL Execution in Suspicious Directory »v0.2 by sigmahq / proc_creation_win_rundll32_shell32_susp_executionAttack scenariowindowsNot spoofableLow confidenceMITRE:t1218

« Shell32 DLL Execution in Suspicious Directory »
v0.2 by sigmahq / proc_creation_win_rundll32_shell32_susp_execution
Attack scenariowindowsNot spoofableLow confidence