Elastic Security Detection Rules

Potential Escalation via Vulnerable MSI Repair

Last updated 2 months ago on 2025-03-20
Created 9 months ago on 2024-09-12

About

Identifies when a browser process navigates to the Microsoft Help page followed by spawning an elevated process. This may indicate a successful exploitation for privilege escalation abusing a vulnerable Windows Installer repair setup.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Privilege EscalationData Source: Elastic EndgameData Source: Elastic DefendData Source: SysmonData Source: SentinelOneData Source: Microsoft Defender for EndpointLanguage: eql
Severity
high
Risk Score
73
MITRE ATT&CK™

Privilege Escalation (TA0004)(opens in a new tab or window)

↳ Exploitation for Privilege Escalation (T1068)(opens in a new tab or window)

Defense Evasion (TA0005)(opens in a new tab or window)

↳ System Binary Proxy Execution (T1218)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
winlogbeat-*endgame-*logs-endpoint.events.process-*logs-windows.sysmon_operational-*logs-sentinel_one_cloud_funnel.*logs-m365_defender.event-*
Related Integrations

endpoint(opens in a new tab or window)

sentinel_one_cloud_funnel(opens in a new tab or window)

m365_defender(opens in a new tab or window)

windows(opens in a new tab or window)

Query
process where event.type == "start" and host.os.type == "windows" and
 user.domain : ("NT AUTHORITY", "AUTORITE NT", "AUTORIDADE NT") and
 process.parent.name : ("chrome.exe", "msedge.exe", "brave.exe", "whale.exe", "browser.exe", "dragon.exe", "vivaldi.exe",
                        "opera.exe", "iexplore", "firefox.exe", "waterfox.exe", "iexplore.exe", "tor.exe", "safari.exe") and
 process.parent.command_line : "*go.microsoft.com*"

Install detection rules in Elastic Security

Detect Potential Escalation via Vulnerable MSI Repair in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).