Hub configuration

Name: Suspicious Rundll32 Activity Invoking Sys File
Author: sigmahq

More info

Suspicious Rundll32 Activity Invoking Sys File Detection Scenario by sigmahq | CrowdSec Hub

« Suspicious Rundll32 Activity Invoking Sys File »
v0.2 by sigmahq / proc_creation_win_rundll32_sys
Attack scenariowindowsNot spoofableLow confidence

Detects suspicious process related to rundll32 based on command line that includes a *.sys file as seen being used by UNC2452

Installation

cscli scenarios install sigmahq/proc_creation_win_rundll32_sys

YAML Configuration

1type: trigger
2name: sigmahq/proc_creation_win_rundll32_sys
3description: |
4  Detects suspicious process related to rundll32 based on command line that includes a *.sys file as seen being used by UNC2452
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.CommandLine contains 'rundll32.exe' && (evt.Parsed.CommandLine contains '.sys,' || evt.Parsed.CommandLine contains '.sys '))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1218.011
15
16  label: "Suspicious Rundll32 Activity Invoking Sys File"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24

Hub configuration

« Suspicious Rundll32 Activity Invoking Sys File »v0.2 by sigmahq / proc_creation_win_rundll32_sysAttack scenariowindowsNot spoofableLow confidenceMITRE:t1218

« Suspicious Rundll32 Activity Invoking Sys File »
v0.2 by sigmahq / proc_creation_win_rundll32_sys
Attack scenariowindowsNot spoofableLow confidence