SigmaHQ/rules/windows/process_creation/win_susp_msiexec_web_install.yml

title: MsiExec Web Install
id: f7b5f842-a6af-4da5-9e95-e32478f3cd2f
status: experimental
description: Detects suspicious msiexec process starts with web addreses as parameter
references:
    - https://blog.trendmicro.com/trendlabs-security-intelligence/attack-using-windows-installer-msiexec-exe-leads-lokibot/
tags:
    - attack.defense_evasion
    - attack.t1218.007
    - attack.command_and_control
    - attack.t1105
author: Florian Roth
date: 2018/02/09
modified: 2020/08/30
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine:
            - '* msiexec*://*'
    condition: selection
falsepositives:
    - False positives depend on scripts and administrative tools used in the monitored environment
level: medium
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`title: MsiExec Web Install`
Added UUIDs to rules 2019-11-12 22:12:27 +00:00			`id: f7b5f842-a6af-4da5-9e95-e32478f3cd2f`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`status: experimental`
rules update 2019-03-05 23:43:42 +00:00			`description: Detects suspicious msiexec process starts with web addreses as parameter`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`references:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`- https://blog.trendmicro.com/trendlabs-security-intelligence/attack-using-windows-installer-msiexec-exe-leads-lokibot/`
rules update 2019-03-05 23:43:42 +00:00			`tags:`
Added UUIDs to rules 2019-11-12 22:12:27 +00:00			`- attack.defense_evasion`
att&ck tags review: windows/process_creation part 7 2020-08-30 16:17:38 +00:00			`- attack.t1218.007`
			`- attack.command_and_control`
			`- attack.t1105`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`author: Florian Roth`
			`date: 2018/02/09`
att&ck tags review: windows/process_creation part 7 2020-08-30 16:17:38 +00:00			`modified: 2020/08/30`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`logsource:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`category: process_creation`
			`product: windows`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`detection:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`selection:`
			`CommandLine:`
Fixed escaping in rule 2019-10-29 21:06:23 +00:00			`- '* msiexec://'`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`condition: selection`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`falsepositives:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`- False positives depend on scripts and administrative tools used in the monitored environment`
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`level: medium`