July 3, 2025 | 10:20

Hacking WSUS

If you have an own PKI in your AD, you may stop reading and move on. Nothing to see here. My gut however tell me, many mid-sized companies don’t have one and are at the mercy of Alex Neff’s Python script.1 Wsuks2 positions itself as man-in-the-middle between a Windows Update Server (WSUS) and the various servers/clients. Read more

July 12, 2021 | 07:40

What did you do this weekend?

Over the weekend I have increased security and automatized processes - that’s lame! This can be anything or nothing, too vague and unspecific. Well technically correct and with a touch of cynicism: “I translated bash scripts to YAML.” Okay, let’s agree on: I consolidated numerous bash scripts for automatically renewing certificates, reduced complexity, eliminated potential security risks when transferring certificates from outside reverse proxies to inside hosts, and made everything more transparent with both Ansible and Git. Read more

June 18, 2021 | 00:10

Quiz for more best practice and awareness

A quizzle for the weekend: Which of the following domains is most likely a malicious one? Look closely! ԁeutsche-telekom.de sparkasse-ԁarmstadt.de cloud.sessionID.cf.373.tw/323.fra.commerzbank.de Quite simple, some will say. Others claim they never fail to phishing mails or open unknown file attachments. This always happens to the others! Whoever knows such a person may pass this quiz to him or her. Read more

January 4, 2021 | 11:41

Hackback the Malware

Yesterday and today I’ve noticed the author malvuln1. He has uncovered vulnerabilities for 14 malware and backdoor applications. Yes, you are correct: He has found vulnerabilities in malware and backdoors, practically with proof-of-concepts to reproduce. No need to emphasise, that’s all Windows malware we’re talking about. Read more

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