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Detection rules › Sigma

Exploited CVE-2020-10189 Zoho ManageEngine

Status
test
Severity
high
Log source
product windows, category process_creation
Author
Florian Roth (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects the exploitation of Zoho ManageEngine Desktop Central Java Deserialization vulnerability reported as CVE-2020-10189

MITRE ATT&CK coverage

TacticTechniques
Initial AccessT1190 Exploit Public-Facing Application
ExecutionT1059.001 Command and Scripting Interpreter: PowerShell, T1059.003 Command and Scripting Interpreter: Windows Command Shell

Event coverage

ProviderEventTitle
SysmonEvent ID 1Process creation
Security-AuditingEvent ID 4688A new process has been created.

Rule body yaml

title: Exploited CVE-2020-10189 Zoho ManageEngine
id: 846b866e-2a57-46ee-8e16-85fa92759be7
status: test
description: Detects the exploitation of Zoho ManageEngine Desktop Central Java Deserialization vulnerability reported as CVE-2020-10189
references:
    - https://www.fireeye.com/blog/threat-research/2020/03/apt41-initiates-global-intrusion-campaign-using-multiple-exploits.html
    - https://vulmon.com/exploitdetails?qidtp=exploitdb&qid=48224
author: Florian Roth (Nextron Systems)
date: 2020-03-25
modified: 2023-01-21
tags:
    - attack.initial-access
    - attack.t1190
    - attack.execution
    - attack.t1059.001
    - attack.t1059.003
    - attack.s0190
    - cve.2020-10189
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith: 'DesktopCentral_Server\jre\bin\java.exe'
        Image|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
            - '\bitsadmin.exe'
            - '\systeminfo.exe'
            - '\net.exe'
            - '\net1.exe'
            - '\reg.exe'
            - '\query.exe'
    condition: selection
falsepositives:
    - Unknown
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    ParentImage|endswith: 'DesktopCentral_Server\jre\bin\java.exe'
    Image|endswith:
        - '\cmd.exe'
        - '\powershell.exe'
        - '\pwsh.exe'
        - '\bitsadmin.exe'
        - '\systeminfo.exe'
        - '\net.exe'
        - '\net1.exe'
        - '\reg.exe'
        - '\query.exe'

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.

FieldKindValues
Imageends_with
  • \bitsadmin.exe corpus 29 (sigma 29)
  • \cmd.exe corpus 130 (sigma 130)
  • \net.exe corpus 49 (sigma 49)
  • \net1.exe corpus 47 (sigma 47)
  • \powershell.exe corpus 182 (sigma 182)
  • \pwsh.exe corpus 168 (sigma 168)
  • \query.exe corpus 6 (sigma 6)
  • \reg.exe corpus 58 (sigma 58)
  • \systeminfo.exe corpus 11 (sigma 11)
ParentImageends_with
  • DesktopCentral_Server\jre\bin\java.exe