87 lines
3.2 KiB
Markdown
87 lines
3.2 KiB
Markdown
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# Purpose
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We're going to be looking at how to get a code-signing certificate, how to sign code with it and use that to create a setup file. This setup file will contain another signed file that will launch a basic web server. The setup file will create a firewall rule for the server so it won't need to prompt the user with a firewall settings prompt.
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# Obtaining a Code Signing Certificate
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Purhcase a code-signing certificate: https://cheapsslsecurity.com/comodo/codesigningcertificate.html
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Be aware that you will likely need to create a Dun & Bradstreet listing, depending on the company you order the certificate from: https://www.dandb.com/businessdirectory/products/ (this is free)
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The validation process will take 1-3 business days if you have entered all of your business information correctly and give them your D-U-N-S (Dun & Bradstreet) number. After you receive an email containing a link to the certificate, follow these directions in the **exact same** browser as the one you used to request the certificate : https://cheapsslsecurity.com/downloads.aspx?ispdf=true&iscs=true&filenm=Comodo_Code_Signing_Collection_Guide.pdf
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# Signing a File
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[Screenshot] Next, you will need to install Visual Studio with the "Universal Windows App Development Tools" workload. You can click on the list of sub-items and un-select everything except the Windows 10 SDK. You can download Visual Studio here: https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=16
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Open a "Developer Command Prompt for VS".
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```
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# Sign a file with your certificate.
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SignTool sign /t http://timestamp.comodoca.com /f codesigning.p12 /p <Password> file.exe
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```
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You should see something like this:
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# Creating the Setup File
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I'm using a few different Go tools to allow us to create the web server, a firewall rule and put the server file inside our setup app.
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## Server
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First of all, you'll want to install Golang: https://golang.org/dl/
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Then you'll want to install [goversioninfo](https://github.com/josephspurrier/goversioninfo) by running the following in a command prompt:
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```
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go get github.com/josephspurrier/goversioninfo/cmd/goversioninfo
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```
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This will allow us to set the name of the program, version, etc. and most importantly, which manifest file to use.
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[Configuration options / usage.]
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## Firewall Rule
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go-powershell
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```
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# working directory is dir
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dir, err := os.Getwd()
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if err != nil {
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log.Fatal(err)
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}
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```
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Might have to create another variable set to the string and add the path.
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```
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# This command will create the firewall rule.
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New-NetFirewallRule -DisplayName "Name of Rule" -Direction Inbound -Program "C:\path\to\app\file.exe" -Action Allow
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```
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You should see something like this:
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Manifest file:
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```
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
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<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
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<security>
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<requestedPrivileges>
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<requestedExecutionLevel level="requireAdministrator" uiAccess="false"/>
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</requestedPrivileges>
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</security>
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</trustInfo>
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</assembly>
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```
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## Put Server In Setup File
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fileb0x
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