crowdstrike_cqlHunting

LOLBin Msiexec

This query detects the use of Msiexec.exe. Msiexec.exe – A Windows Installer utility that executes MSI packages or DLLs (including remote or transformed payloads), frequently misused by attackers for stealthy code execution and application control bypass. [LOLBAS - Msiexec.exe](https://lolbas-project.github.io/lolbas/Binaries/Msiexec/)

MITRE ATT&CK

T1218.007

defense-evasion

Detection Query

in(#event_simpleName, values=["ProcessRollup2","ProcessBlocked"])
| event_platform=Win and ImageFileName=/msiexec.exe/i and CommandLine=/http/i

Author

ByteRay GmbH

Data Sources

Endpoint

Platforms

windows

Tags

Huntingcs_module:Insight

Raw Content

# --- Query Metadata ---
# Human-readable name for the query. Will be displayed as the title.
name: LOLBin Msiexec

# MITRE ATT&CK technique IDs
mitre_ids:
  - T1218.007

# Description of what the query does and its purpose.
description: |
  This query detects the use of Msiexec.exe.

# The author or team that created the query.
author: ByteRay GmbH

# The required log sources to run this query successfully in Next-Gen SIEM.
# This will be displayed in the UI to inform the user.
log_sources:
  - Endpoint

# Tags for filtering and categorization.
# Include relevant techniques, tactics, or platforms.
tags:
  - Hunting

cs_required_modules: 
  - Insight
# --- Query Content ---
# The actual CrowdStrike Query Language (CQL) code.
# Using the YAML block scalar `|` allows for multi-line strings.
cql: |
  in(#event_simpleName, values=["ProcessRollup2","ProcessBlocked"])
  | event_platform=Win and ImageFileName=/msiexec.exe/i and CommandLine=/http/i

# Explanation of the query.
# Using the YAML block scalar `|` allows for multi-line strings.
# Uses markdown for formatting on the webpage.
explanation: |
  Msiexec.exe – A Windows Installer utility that executes MSI packages or DLLs (including remote or transformed payloads), frequently misused by attackers for stealthy code execution and application control bypass.
  
  [LOLBAS - Msiexec.exe](https://lolbas-project.github.io/lolbas/Binaries/Msiexec/)