Try our new Certificate Revocation List Check Tool
CRLcheck.exe is a tool developed to verify digital signatures of executable files. It collects files from known paths on your client, checks their signature, and checks Certificate Revocation Lists (CRL) and OCSP download. This helps avoid delays in launching files.

M365/Exchange Hybrid OAuth Testing command, OAuth-Cert out-of-sync 4001, IIS VDIR OAuth wrong

www.butsch.ch Resolve and find OAuth problem in Exchange Hybrid Setup Environment Short Understanding OAuth: OAuth (Open Authorization) is an industry-standard protocol that enables secure authorization for third-party applications without the need to disclose user credentials. It allows users to grant limited access to their resources on one site to another site, without sharing their credentials. […]

13.06.2024 False-Postive with ENS 10.7, AMCORE 5554 on Windows Defender AM_Delta_Patch Server 2019 German

  Trellix ENS 10.7 deletes Windows Defender Update which come from WSUS-Server on German Server 2019 We just did see a false positive on Windows Defender Updates we provide via WSUS with autoaprove on a Windows Server 2019 German with Trellix ENS 10.7 and AMCORE 5554. The file was deleted from C:\Windows\SoftwareDistribution\Download\ Microsoft affected file: […]

16.07.2024, Office 365 / M365 EX814289 shared calendar not working

Workaround ONLY works as long as you don’t close Outlook.exe (Don’t close Outlook after it works until MS solves problem) EX814289 Users may be unable to access shared calendars in the Outlook desktop app. Users who have access to Outlook on the web or Outlook for Windows (https://www.microsoft.com/store/productId/9NRX63209R7B?ocid=pdpshare) can use this connection method to access […]

Mcafee/Trellix ENS Gootkit False ENS 10.7 after 15.05.2024, rule SIG 6232 with VBS from TEMP

  Mcafee/Trellix ENS 10.7 Exploit Prevention Content 13401 Update SIG 6232 from 15.05.2024 brought a false with some customers from us. This comes with good (change) or bad (false) timing after we have seen some Gootloader activity happening in EU/CH these days. This happens on ENS 10.7 APRIL 2024 and also on Nov 2023 Version […]

Google chrome 124 and Edge Chromium Probleme Webserver SSL-Brechen [DEU]

  Google Chrome.exe 124 und Edge Chromium könnten Probleme haben, sich mit einem Webserver hinter älteren Firewalls oder Proxys zu verbinden, ODER bestimmte Sicherheitsgeräte filtern HTTPS/TLS-Websites nicht mehr.   Das Problem hat etwa am 22.04.2024 begonnen und nimmt laufend zu. Dies könnte Sie betreffen, wenn: Sie oder jemand anderes einen Webserver oder einen Dienst mit […]

Google chrome.exe 124 and Edge Chromium cannot reach Webserver behind IPS/proxy [cipher X25519Kyber768]

Google Chrome.exe 124 and Edge Chromium may have problems connecting Webserver behind older firewalls or proxy OR certain security device do not filter HTTPS/TLS websites anymore.     The problem has started around 22.04.2024 and is growing. This could effect you if: You run or someone else runs a Webserver or any service with https […]

Microsoft Exchange Server SE (Subscription Edition) ab Herbst 2025

  Exchange SE (Subscription Edition), Exchange 2019 Nachfolger mit in-place Upgrade |   Microsoft hat gerade Release-Informationen und eine Zeitlinie für die Einführung der neuen Exchange SE (Subscription Edition) veröffentlicht. Kunden können weiterhin rein On-Premises oder im Hybridmodus arbeiten, wie es ihren Bedürfnissen entspricht. Neu wird die Exchange SE jedoch ausschliesslich im Abonnementmodell erhältlich sein. […]

Proxy settings der Cryptography API bei Zertifikatswiderrufslisten (CRL) von einem CRL-Verteilungspunkt

  Dieser Artikel zielt darauf ab, den Prozess zu erläutern, den die Crypto API durchläuft, um erfolgreich eine HTTP-basierte URL für den CRL-Verteilungspunkt herunterzuladen. Er dient auch der Fehlerbehebung in Situationen, die mit der Netzwerkrückgewinnung von CRLs verbunden sind. Zusätzlich wird unser kostenloses Tool, crlcheck.exe, erwähnt, das dazu beitragen soll, komplexe Probleme effektiver zu lösen. […]

Certutil.exe –url –urlcache how to use and freeware GUI crl check to automate CRL verify

  How to use Microsoft certutil.exe –url or –urlcache to find CRL and OCSP on Windows manually, or utilize our freeware tool crlcheck.exe, which performs the same function fully automatically for all EXE files on your system. crlcheck.exe https://www.butsch.ch/post/crlcheck-exe-certificate-revocation-list-check-tool-to-verify-all-crl-and-ocsp-on-windows-client/   What is a CRL Certificate Revocation List file?   Each certificate authority (CA) periodically issues […]