Add internet detector utility

Co-authored-by: Ana Martinez Gomez <[email protected]>

packages/internet_detector.vm/internet_detector.vm.nuspec

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+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2015/06/nuspec.xsd">
+  <metadata>
+    <id>internet_detector.vm</id>
+    <version>1.0.0</version>
+    <authors>Elliot Chernofsky and Ana Martinez Gomez</authors>
+    <description>Tool that changes the background and a taskbar icon if it detects internet connectivity</description>
+    <dependencies>
+      <dependency id="common.vm" version="0.0.0.20240821" />
+      <dependency id="libraries.python3.vm" version="0.0.0.20240726" />
+      <dependency id="fakenet-ng.vm" version="3.2.0.20240425" />
+    </dependencies>
+  </metadata>
+</package>

packages/internet_detector.vm/tools/chocolateyinstall.ps1

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+$ErrorActionPreference = 'Stop'
+Import-Module vm.common -Force -DisableNameChecking
+
+$toolName = 'internet_detector'
+$category = 'Utilities'
+$packageToolDir = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
+
+# Create tool directory
+$toolDir = Join-Path ${Env:RAW_TOOLS_DIR} $toolName
+New-Item -Path $toolDir -ItemType Directory -Force -ea 0
+VM-Assert-Path $toolDir
+
+# Install dependency for windows api
+VM-Pip-Install "pywin32"
+# Install dependency for creating python executable
+VM-Pip-Install "pyinstaller"
+
+Start-Process -FilePath 'cmd.exe' -ArgumentList "/c pyinstaller --onefile -w --distpath $toolDir --workpath $packageToolDir --specpath $packageToolDir $packageToolDir\internet_detector.pyw" -Wait
+
+# Move images to %VM_COMMON_DIR% directory
+$imagesPath = Join-Path $packageToolDir "images"
+Copy-Item "$imagesPath\*" ${Env:VM_COMMON_DIR} -Force
+
+VM-Install-Shortcut -toolName $toolName -category $category -executablePath "$toolDir/$toolName.exe"
+
+# TODO - Uncomment when FakeNet BlackList for DNS is fixed/addressed. https://github.com/mandiant/flare-fakenet-ng/issues/190
+# # Create scheduled task for tool to run every 2 minutes.
+# $action = New-ScheduledTaskAction -Execute $rawToolPath
+# $trigger = New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 2)
+# Register-ScheduledTask -Action $action -Trigger $trigger -TaskName 'Internet Detector' -Force
+
+# Copy updated `default.ini` with tool added to ProcessBlackList to FakeNet Config Directory
+$fakenetConfigDir = Join-Path ${Env:UserProfile} "Desktop\fakenet_logs.lnk"
+if (Test-Path $fakenetConfigDir) { # Check if the shortcut exists
+    $targetPath = (New-Object -ComObject WScript.Shell).CreateShortcut($fakenetConfigDir).TargetPath
+    Copy-Item "$packageToolDir\default.ini" -Destination $targetPath
+}

packages/internet_detector.vm/tools/chocolateyuninstall.ps1

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+$ErrorActionPreference = 'Continue'
+Import-Module vm.common -Force -DisableNameChecking
+
+$toolName = 'internet_detector'
+$category = 'Utilities'
+
+VM-Uninstall $toolName $category
+Unregister-ScheduledTask -TaskName 'Internet Detector' -Confirm:$false