SigmaHQ/rules/windows/builtin/win_susp_msiexec_web_install.yml

---
action: global
title: MsiExec Web Install
status: experimental
description: Detects suspicious msiexec proess starts with web addreses as parameter
references:
    - https://blog.trendmicro.com/trendlabs-security-intelligence/attack-using-windows-installer-msiexec-exe-leads-lokibot/
author: Florian Roth
date: 2018/02/09
modified: 2012/12/11
detection:
    condition: selection
falsepositives: 
    - False positives depend on scripts and administrative tools used in the monitored environment
level: medium
---
logsource:
    product: windows
    service: sysmon
detection:
    selection:
        EventID: 1
        CommandLine: 
            - '* msiexec*:\/\/*'
---
logsource:
    product: windows
    service: security
    definition: 'Requirements: Audit Policy : Detailed Tracking > Audit Process creation, Group Policy : Administrative Templates\System\Audit Process Creation'
detection:
    selection:
        EventID: 4688
        ProcessCommandLine: 
            - '* msiexec*:\/\/*'