PowerShell Weekly
PowerShell Weekly

Author: Matthew Dowst

Uncategorized

Compare Images

The following function can be used to compare two pictures based on size and a pixel-by-pixel comparison. Function Compare-Images { param( $ReferenceFile, $DifferenceFile ) $ReferenceImage = [System.Drawing.Bitmap]::FromFile($ReferenceFile) $DifferenceImage = [System.Drawing.Bitmap]::FromFile($DifferenceFile) if ($ReferenceImage.Size -ne $DifferenceImage.Size) { Write-Host "Images are of different sizes" $false } else { # Set the difference to 0 [float]$Difference = 0; # Parse through each pixel for...
Matthew Dowst
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Uncategorized

PowerShell Weekly Redesign!

I am pleased to announce that PowerShell Weekly has been redesigned and moved to its own sub-site psweekly.dowst.dev. All past posts and links are available there as well. What’s New New look and feel Thumbnails for every link Improved searching of the 2,000+ links Search by keyword, date, author, category Custom RSS Feed specifically the links
Matthew Dowst
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AzureSecurity

Find Java Based Azure App Services

A quick Azure PowerShell command to locate any Java based Azure App Services and Functions so you can check if they are vulnerable to the CVE-2021-44228 Apache Log4j2 vulnerability. Get-AzWebApp | ForEach-Object{ Get-AzWebApp -ResourceGroupName $_.ResourceGroup -Name $_.Name | Select-Object -Property Name, @{l='JavaVersion';e={$_.SiteConfig.JavaVersion}}, ResourceGroup, Id } | Format-Table
Matthew Dowst
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Azure

Resubmit Azure Automation Runbook Job

This snippet will allow you to re-run any Azure Automation Runbook job with the same parameters and in the same context (Azure or Hybrid Worker Group). # Set the variables from the previous job $AutomationAccountName = '' $ResourceGroupName = '' $JobId = '' # Get the previous job $AutoAccount = @{ AutomationAccountName = $AutomationAccountName ResourceGroupName = $ResourceGroupName } $PreviousJob =...
Matthew Dowst
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Azure

Copy Azure Permissions

I was replacing an old service account with a service principal, and needed to replicate the permissions in Azure. I was able to do that without missing anything, using the command below. $CopyFrom = 'Object to copy from' $CopyTo = 'Object to copy to' Get-AzRoleAssignment -ObjectId $CopyFrom | ForEach-Object{ New-AzRoleAssignment -ObjectId $CopyTo -RoleDefinitionId $_.RoleDefinitionId -Scope $_.Scope }
Matthew Dowst
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