Hub configuration

Name: Suspicious Rundll32 Invoking Inline VBScript
Author: sigmahq

More info

Suspicious Rundll32 Invoking Inline VBScript Detection Scenario by sigmahq | CrowdSec Hub

« Suspicious Rundll32 Invoking Inline VBScript »
v0.2 by sigmahq / proc_creation_win_rundll32_inline_vbs
Attack scenariowindowsNot spoofableLow confidence

Detects suspicious process related to rundll32 based on command line that invokes inline VBScript as seen being used by UNC2452

Installation

cscli scenarios install sigmahq/proc_creation_win_rundll32_inline_vbs

YAML Configuration

1type: trigger
2name: sigmahq/proc_creation_win_rundll32_inline_vbs
3description: |
4  Detects suspicious process related to rundll32 based on command line that invokes inline VBScript 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 'Execute' && evt.Parsed.CommandLine contains 'RegRead' && evt.Parsed.CommandLine contains 'window.close')
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1055
15
16  label: "Suspicious Rundll32 Invoking Inline VBScript"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24

Hub configuration

« Suspicious Rundll32 Invoking Inline VBScript »v0.2 by sigmahq / proc_creation_win_rundll32_inline_vbsAttack scenariowindowsNot spoofableLow confidenceMITRE:t1055

« Suspicious Rundll32 Invoking Inline VBScript »
v0.2 by sigmahq / proc_creation_win_rundll32_inline_vbs
Attack scenariowindowsNot spoofableLow confidence