Joined May 2011
- Tweets 672
- Following 726
- Followers 288
- Likes 395
87 Photos and videos
Mar 29
If you’re using my popular “Fake-MDM-Provider” to make Microsoft Edge treat a non-managed device as MDM-enrolled:
ℹ️Edge (Beta) v147 changes it's MDM detection, so an updated “Fake-MDM-Provider” is required.
My well-known Blog-Post is already updated: hitco.at/blog/apply-edge-pol…
ALT Screenshot der MDM-FakeEnrollment.reg Datei des Fake-MDM-Providers für Microsoft Edge.
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27 Nov 2025
Ab Juni 2026 laufen die UEFI SecureBoot Zertifikate ab, das Microsoft KEK & UEFI DB Zertifikate für Windows & 3rd Party (Linux) müssen ergänzt / ersetzt werden.
Konkrete Umsetzung mittels PowerShell under Windows inkl. Tipps & Tricks hier zusammengefasst: hitco.at/blog/uefi-secureboo…
ALT UEFI SecureBoot Zertifikate, KEK KeyExchange Key muss ersetzt werden, Signature Database DB Zertifikate müssen ersetzt werden
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Gunnar Haslinger retweeted
15 Jul 2025
New blog post: UCPD.sys – UserChoice Protection Driver Part 2: kolbi.cz/blog/2025/07/15/ucp…
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Gunnar Haslinger retweeted
27 Jun 2025
UCPD.sys v4.3 is now rolling out on Windows 11. It brings 6 new protection features (currently inactive) - including one that blocks the file renaming attack 😬
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13 Jun 2025
Wer einen PC mit Fujitsu D34xx Mainboard besitzt (z.B. zahlreiche Esprimo Geräte) sollte vor dem Einspielen der am Patch-Tuesday 10.06.2025 herausgegebenen Windows-Updates folgende Infos lesen, ansonsten droht Gefahr sein Gerät zu bricken.
hitco.at/blog/fujitsu-d3410-…
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Gunnar Haslinger retweeted
27 Apr 2025
Since it's now blocked on Windows 11, I'm publishing a simple PoC to bypass UCPD.sys using RegRenameKey: github.com/kolbicz/UCPD.sys/…
Original idea by @GHaslinger, but also discovered by Mozilla: searchfox.org/mozilla-centra…
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22 Apr 2025
Seeing pixelation or a mosaic-like effect on websites with lots of JPEG graphics in @MicrosoftEdge 135?
The culprit might be GPU rasterization! 🖥️
Go to edge://flags, set it to Disabled, and restart Edge.
🔧 My setup: Intel Core i5-6400 CPU/GPU
ALT JPEG Graphic with pixelation effect, creates a mosaic-like look.
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Gunnar Haslinger retweeted
21 Apr 2025
🚨 New Blog Post: UserChoiceLatest - Microsoft’s new protection mechanism for file type associations. What it changes, how it impacts file association management, and what it means for tools like SetUserFTA. kolbi.cz/blog/2025/04/20/use…
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Gunnar Haslinger retweeted
25 Nov 2024
Microsoft is rolling out UCPD.sys v3.2 with the latest cumulative update for Windows 10 and 11. It includes new blocking mechanisms that aren’t enabled yet. I’ll share detailed information as soon as they’re turned on. Stay tuned!
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11 Oct 2024
🚨 Breaking News!
OSINT sources reveal:
Sami Laiho turns 45 today!
🎉🥳#HappyBirthday @samilaiho
ALT Sami Laiho - Birthday - 45
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Gunnar Haslinger retweeted
5 Oct 2024
Microsoft has released a new version of UCPD.sys, which impacts the functionality of the licensed edition of SetUserFTA for HTTP, HTTPS, and .PDF associations. An update will be available shortly to address this issue.
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Gunnar Haslinger retweeted
25 Sep 2024
Microsoft deprecated WSUS -- should you care? oofhours.com/2024/09/24/micr…
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1 Aug 2024
Attention IT Pros! The Microsoft UEFI CA, which SecureBoot relies on, will expire on Monday October 19, 2026, after 15 years of validity. Mark this date in your calendar. Devices require a Firmware/DB update; otherwise, stop booting. 🔒#WindowsSecurity
support.microsoft.com/en-us/…
ALT Microsoft UEFI Secure Boot CA: Microsoft Windows Production PCS 2011
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1 Aug 2024
Using Linux with SecureBoot? Then this UEFI SecureBoot Knock-Out-Date is relevant for you: Saturday June 27, 2026. Same story: after 15 years of validity this CA expires. UEFI 3rd-Party BootLoader-Devices require a Firmware/DB update; otherwise, stop booting. 🔒#LinuxBootLoader
ALT Microsoft UEFI CA 2011 for 3rd Party UEFI BootLoaders, Linux-BootLoaders
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2 Aug 2024
Better plan soon, don't wait till 2026:
x.com/mniehaus/status/181910…
1 Aug 2024
It will hit you as soon as the new cert starts to be used. That could happen well before the other cert expires. Again, we're dependent on clear communication from MS to avoid *another* unbootable-PC catastrophe.
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Gunnar Haslinger retweeted
1 Aug 2024
New blog post: Using WinGet to Download Microsoft Store Applications. Thanks @JasonSandys and @GHaslinger for your help/support)
deploymentresearch.com/using…
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Gunnar Haslinger retweeted
21 Jun 2024
SetUserFTA has now its own domain and Twitter account. I will no longer use my blog to share information about SetUserFTA. Please follow @setuserfta on Twitter and visit the website at setuserfta.com
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Gunnar Haslinger retweeted
30 May 2024
RELEASE: SetUserFTA v1.8 - this version can set http/https and .pdf with active UCPD.sys. Please read the note on setuserfta.com
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24 Apr 2024
Warum erachtet es die Republik Österreich, vertreten durch die Österreichische Bundesfinanzierungsagentur OeBFA als sinnvoll, wenn auf bundesschatz.at zig Cookies & Content von US-Anbietern wie Adobe, Google, Microsoft, Meta nachgeladen werden?
#Privacy #Bundesschatz
ALT Screenshot von bundesschatz at, es werden Cookies & Content von Adobe, Google, Microsoft & Meta (Facebook) geladen. #Privacy #Security
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26 Mar 2024
Microsoft hat sich zum Leidwesen vieler Windows-SysAdmins wieder einmal etwas neues, undokumentiertes ausgedacht. Windows *UserChoice Protection Driver* = *UCPD Filter-Treiber*: blockiert Registry-Zugriffe zum Ändern von Default-Browser & PDF-Reader. hitco.at/blog/windows-userch…
ALT Deassemblierter Code des UCPD.sys Filter-Treibers welcher die Änderung von Default-Applikationen für HTTP/HTTPS sowie .pdf blockiert.
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9 Apr 2024
Auch @heiseonline berichtet nun darüber, wenngleich hier nur ein Ausschnitt des Sachverhalts geschildert wird.
x.com/heiseonline/status/177…
9 Apr 2024
Microsoft: Neuer Treiber schützt Standard-Browser-Einstellung heise.de/news/Microsoft-Neue… #Microsoft
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