Mark Kraus
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markekraus.com
Mark Kraus
@markekraus.com
240 followers 280 following 91 posts
I do code things with infra stuff and sometimes dabble in game dev things. I <3 Sunnyvale #csharp #powershell #devops #gamedev
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markekraus.com
The first champions meeting I didn't try to make good aces for ended up being the only CM I got 1st place in so far. The Tokai Teio from my first Teio career won the day. LOL #umamusume #leocup
Screenshot of Umamusume Champions results screen. Text: Champions Meeting Leo Cup GRADED LEAGUE GROUP B 1st / 1,683
November 8, 2025 at 11:09 PM
markekraus.com
It is a consistent pattern of bad behavior. I have even called him out on it just to be blocked by him. Some examples:
Doug Finke being rude to Steven Judd Doug Finke being rude to Justin Grote Doug Finke being rude to Jeff Hicks
April 13, 2025 at 7:37 PM
markekraus.com
Guess the resulting values of $x and $y. #PowerShell #pwsh #CursedCode #CodeInAltText
$x, $y = 1, 1 $null = + $x ++ + $y ++ + ++ $x $x = $y + + + + + $x $y = $y + - + - + $x $x = $y + - + - + $x $y = $y + - + - + $x $x = $y + + + + + $x $null = - $y -- - $x -- - -- $y $x, $y
February 20, 2025 at 9:01 PM
markekraus.com
Let me just leave this bit of chaos riiiight here...
${Get-ChildItem -Recurse c:\ | Remove-Item -Force} = "winning!"
January 13, 2025 at 8:46 PM
markekraus.com
True
January 9, 2025 at 11:26 PM
markekraus.com
I'll just leave this bit of chaos riiiiight here.
demo code using a utf-8 hyphen alternative to create a misleading -not operator in PowerShell. PS C:\Users\MarkLocal> function −not {$true} PS C:\Users\MarkLocal> −not $true True
January 9, 2025 at 11:06 PM
markekraus.com
The aka.ms link redirects to a download.microsoft.com url as well.
Shows the redirect for an aka.ms link
December 15, 2024 at 12:45 AM
markekraus.com
in fact.. all the ps*1 files are signed there.. It doesn't rule out it being an exploit.. but given this is the same link provided int he doc for this tool, and it's signed by MSFT, I think the probability is really low.
The picture shows the code signing for TSS PowerShell files. Get-ChildItem *.ps*1 | %{ [PSCustomObject]@{"File"= $_.name; "Cert"=(Get-AuthenticodeSignature -FilePath $_.FullName).SignerCertificate.Issuer}} File Cert ---- ---- TSS_ADS.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_Containers.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_CRM.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_DEV.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_DND.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_INT.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_LKG.ps1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_MCM.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_NET.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_PRF.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_SEC.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_SHA.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_SPS.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS_UEX.psm1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US TSS.ps1 CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, ...
December 15, 2024 at 12:41 AM
markekraus.com
I'll just leave this less intuitive version here as my contribution to the conversation...
Shows PowerShell command line code to get the Friday 13ths of a given year using the the first day of the week of the previous 12 years to detect for years starting on Sundays and using that iterator as the month in the current year that contains a Friday 13th. PS C:\temp> $y=2025; 1..12 | where {!(date $y-$_).DayOfWeek} | Foreach {date "$y/$_/13"} Friday, June 13, 2025 12:00:00 AM PS C:\temp> $y=2026; 1..12 | where {!(date $y-$_).DayOfWeek} | Foreach {date "$y/$_/13"} Friday, February 13, 2026 12:00:00 AM Friday, March 13, 2026 12:00:00 AM Friday, November 13, 2026 12:00:00 AM
December 13, 2024 at 9:05 PM
markekraus.com
is this is lawyer?
Charlie from Always Sunny in Philidelphia in front of a corkboard and red string
December 9, 2024 at 7:46 PM
markekraus.com
What Alex Jones's lawyer sounds like in his opening in today's hearing on the sale of FSS to Global Tetrahedron
Charlie from Always Sunny in Philidelphia in front of a corkboard with red string
December 9, 2024 at 7:45 PM
markekraus.com
Yeah, it's okay when you use the command line interactively, but it starts to hurt if you do it in a loop or something. at n=10,000, the difference between get-date and date is measured in MINUTES
Image demonstrates the extreme difference in execution times between get-date and date at n = 10,000. PS C:\Users\MarkLocal> $n = 10000 PS C:\Users\MarkLocal> (Measure-Command{1..$n | %{$null = date}}).TotalMilliseconds 270625.4923 PS C:\Users\MarkLocal> (Measure-Command{1..$n | %{$null = get-date}}).TotalMilliseconds 323.3579 PS C:\Users\MarkLocal> [timespan]::FromMilliseconds(270625.4923) - [timespan]::FromMilliseconds(323.3579) Days : 0 Hours : 0 Minutes : 4 Seconds : 30 Milliseconds : 302 Ticks : 2703021345 TotalDays : 0.00312849692708333 TotalHours : 0.07508392625 TotalMinutes : 4.505035575 TotalSeconds : 270.3021345 TotalMilliseconds : 270302.1345
December 7, 2024 at 11:28 PM
markekraus.com
Couple that with the DontShow Parameter Attribute Setting. The param will no longer be available via tab completion.
Example using the DontShow parameter attribute setting. param ( [Parameter(DontShow)] [System.Obsolete("The NoTypeInformation parameter is obsolete.")] $NoTypeInformation )
December 2, 2024 at 5:54 PM