Tim Medin@TimMedin

Kerberoast Guy • @RedSiege CEO • IANS Faculty • Former SANS SEC560 Author, Senior Instructor • Packers Owner #GoPackGo • Work Req: redsiege.com/contact

 Longview, TX
redsiege.com
Joined April 2008
1,814 Photos and videos
A senator talking about Kerberoasting was not on my bingo card!
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How is there not a “Fire Matt LeFleur” shirt? Like, no where on the internet.
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Jason decided to do his own art work for this. #nailedit
Red Siege Information Security@RedSiege
Sep 2
THE TIME HAS ARRIVED! It’s Wednesday, and Security Consultant Jason Downey’s Wednesday Offensive September takeover officially starts TODAY. We're kicking things off with Initial Access 🔓 See you at 130pm ET 🔗 redsiege.com/wedoff #hacking #infosec #cybersecurity
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I decided to chat with a spammer/scammer. I found them to be pretty honest and forthcoming.
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Apple's Liquid Glass was cool for like 1 minute.
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Great stuff from @hardwaterhacker
Red Siege Information Security@RedSiege
Jan 6
In this Red Siege Knowledge Brief, CEO @TimMedin sits down with Principal Security Consultant Mike Saunders to explore a clever red team technique: concealing shellcode within image files to enable stealthy payload delivery. piped.video/_XKDH5rjixc?si=JEMJ…
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Minor league hockey is the best!
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Watching Third Eye Blind halftime show. After 30 years it’s good to know they haven’t changed and are as off key as when I saw them open for U2 in the 90s.
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Stranger Things finale was weird. After the climax it went on for far too long. They could have, and should have, trimmed 30-40 minutes.
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Bowl season is the best!
CFB Kings
@CFBKings
31 Dec 2025
This is an all-time bowl game picture
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How often do you reboot your computer? Once every couple of months for me.
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New Year. Same Mission. Let's get to work! #hacking #infosec #cybersecurity
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Just stopped to get some BBQ. Plenty of time.
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Ate the fantastic turkey sandwich, boarded with group 7 or something. #nailedit
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There is Hitchcock on your camera
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Good way to go into the weekend
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Months of battling, and I won. Inbox zero. ... for now.
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Don't forget to grab yer tickets for WWHF @ Mile High 2026! -> wildwesthackinfest.com/wild-… Check out @TimMedin's talk, "Death by Dashboards : Moving the Needle on What Actually Matters," from Wild West Hackin' Fest - Deadwood 2025! piped.video/watch?v=BgxWaLUr…

Wild West Hackin' Fest - Mile High 2026 - Wild West Hackin' Fest

Wild West Hackin' Fest is headed back to Denver in February 2026!

wildwesthackinfest.com
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Microsoft created Get-KerbEncryptionUsage.ps1 to query the event log to see which encryption types Kerberos used within your environment. Run this, find the ones that MUST use RC4, and burn the rest. Then figure out how to upgrade the others from RC4 or pick a great password.
Tim Medin@TimMedin
10 Dec 2025
"By mid-2026, ... Windows Server 2008 and later to only allow AES-SHA1 encryption. RC4 will be disabled by default and only used if a domain administrator explicitly configures an account or the KDC to use it." microsoft.com/en-us/windows-…
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"By mid-2026, ... Windows Server 2008 and later to only allow AES-SHA1 encryption. RC4 will be disabled by default and only used if a domain administrator explicitly configures an account or the KDC to use it." microsoft.com/en-us/windows-…

Beyond RC4 for Windows authentication | Microsoft Windows Server Blog

As organizations face an evolving threat landscape, strengthening Windows authentication is more critical than ever.

microsoft.com
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Is there a modern equivalent of Highlighter (originally from Mandiant) that allows you to quickly rip through large text and log files? Ideally something that works on Mac or Linux. Original: fireeye.market/apps/211376

Highlighter | FireEye Market

Log and text file views.

fireeye.market
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