This module is comprised of cmdlets to detect homoglyphs in code or other documents.
- Get-HomoglyphsInFile - Gets homoglyphs in the specified file. The user must specify how to parse the file using parse elements, regular expressions, or pre-defined methods.
- Remove-Uninteresting - Removes items that are not homoglyphs of other items in the list
- Find-HomoglyphsInRepo - Scans the specified repo for homoglyphs
- Find-HomoglyphsInOrg - Scans the specified org's repos for homoglyphs
- Convert-RandomCharacters - Replaces characters in the InputString with similar looking characters
Get-HomoglyphsInFile-FileName .\testTextFile.txt -Regex "[a-z]+"-RemoveUninteresting
Name OCRValue Type File
--------------------123123 customRegex .\testTextFile.txt
123… 123 customRegex .\testTextFile.txt
１23123 customRegex .\testTextFile.txt
#Found all the number values that were separated by text that were homoglyphsGet-HomoglyphsInFile-File .\testfile.txt -ParseElements @('','.',',',"`n") -RemoveUninteresting
#Scans a typical text file for homoglyphs
ls testfi*.ps1 |Get-HomoglyphsInFile-Predefined PowerShell -RemoveUninteresting
#Get all files like testfi*.ps1 and remove any homoglyphs across all matching files$results= ls testfi*.ps1 |%{Get-HomoglyphsInFile$_-Predefined PowerShell -RemoveUninteresting}
$results.name| group | select count,name
#Get all files like test*.ps1 and remove homoglyphs. Group them to show which items were found, and what they're homoglyphs of and how many of each are found.$results=@()
$count=0$files= gci C:\myFolder\ -Recurse -Include "*.ps1"-File
ForEach($filein$files){
Write-Progress-PercentComplete ($count/$($files.count)*100) -Activity 'Scanning Files'-CurrentOperation "($count/$($files.count)) - $($file.FullName)"$results+=Get-HomoglyphsInFile-FullName $file.FullName-Predefined PowerShell
$count++
}
$refinedResults=$refinedResults-Array $results#Searches all files in C:\myFolder - This is about 130 times faster than scanning the same repo with Find-HomoglyphsInRepo