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[Blog] Abusing .NET Core CLR Diagnostic Features (+ CVE-2023-33127)

- Analysis of .NET diagnostic features and tradecraft
- Walkthrough of a .NET Cross-Session Local Priv Esc (LPE)
- Defensive Recommendations

bohops.com/2023/11/27/abu…
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On the topic of Monster Trucks...

Son: "Dad, Max-D was around in the old days."
Me: "What do you consider the old days, bud?"
Son: "You know, way before I was born, like the early 2000s"
Me: "Ouch"
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Awesome seeing great folks win like this. Congrats @dreadnode team!
CrowdStrike has signed a definitive agreement to acquire Dreadnode.

As part of the Falcon platform and @CrowdStrike's Cyber Superintelligence Lab, we'll bring automated AI security testing to every enterprise, so teams can find and fix weaknesses in their models and agents before they reach production.

We've always run Dreadnode like a lab, and now we get to build with one of the largest security companies in the world. This isn't an exit for us. It's a call-up to the big leagues, with more resources and a higher bar.

Thank you to our customers, partners, and community for getting us here. The mission doesn't change: ensure AI strengthens defenders faster than it strengthens their adversaries.

Read the full announcement ⬇️
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“How dare these pleebs think personal computers are for personal use instead of global AI allocation.”
NEW: Sam Altman says it’s “quite terrible” for everyday people to own RAM, arguing it belongs in data centers.
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Happy All Hallows' Eve!
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15 years after Skynet. A front-line resistance hacker and his local AI stack still resisting.
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bohops retweeted
Fifteen years ago, I co-founded MDSec. Today, that journey comes to an end.

In that time, we’ve written books, spoken at almost every major conference, and discovered and exploited more 0-days than I could count. We’ve hacked banks, $tock exchanges, tech giants, frontier AI orgs nies in between. We’ve jackpotted ATMs, intercepted money from payment systems, compromised mainframes, beaconed mobile devices and got r00t more times than I can remember.

A huge thank you to everyone on the MDSec team and all the MDSec alumni, who helped make it such a wild ride. I’m immensely proud of what we built. And to all our customers, past and present, thank you for the trust and opportunities you gave us.

I’m excited for the next chapter. If the next 15 years are anything like the last, it’s time to strap in.
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bohops retweeted
The bypass of LDAP Signing Through Reauthentication described in @SpecterOps blog also works with pure Kerberos relay. too ;-)
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On the surface, a lot of the AI doom-and-gloom crowd overlooks something important...

Front-line defenders use AI too. They just don’t post about it as much as everyone else. 🎩🐰

A second point: many of them use it well. Don’t ask me how I know.
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bohops retweeted
Video of my @UnpromptedAU & Bsides Canberra talks out now

I built an autonomous N-Day exploit pipeline for the Windows kernel w/ mix of deterministic and AI-led stages. Results were comparable to what Anthropic achieved with Mythos using a much less powerful model.
Now online from BSides Canberra 2026: @chompie1337 presents “Building an Autonomous N-day Exploit Generation Pipeline”.

Watch now: youtu.be/03Xh_6_6U4M
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what is the best github alternative today for private repos
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bohops retweeted
Why do pro-AI people act like everything in life was impossible a mere two years ago?
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Unsolicited parenting advice:

There’s a surprisingly strong correlation between how you treat your children and the quality of the nursing home you end up in one day. Just something to keep in mind.
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It's not too late for the AI frontier to shift gears
Forget AGI. Put every GPU on Earth toward one project:

A working time machine so I can return to the 90s and never come back.
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bohops retweeted
New talk up OAIC 2026: Vibe Fuzzing with Sam Lovejoy @_dinolover38 of IBM X-Force Offensive Research.

Sam explores how graph-based inputs, program state, and LLM guidance come together in an AI-guided fuzzing engine- and the tradeoffs behind it.

Watch the full talk: offensiveaicon.com/vibe-fuzzing

#OAIC #OffensiveAI #Fuzzing
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bohops retweeted
Reposting because it’s good (you might have seen this before but it gets updated)

”UltimateWDACBypassListPublic
A centralized resource for previously documented WDAC bypass techniques”

Author: @bohops
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This is quite the sanctimonious line from inside the building.

However, I do agree with the advice to get help and leadership buy-in to address the basics. Hygiene has never been more important in cyber, and it will still be important in 18 months.
@hinapansari yes. it was always going to be this way. we tried to warn the world.
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bohops retweeted
🦛🦛🦛Microsoft patched PetitPotam this October: EFSR now only resolves local paths. This means WebDAV to LDAP Coercion is fixed!

Remaining methods for clients are WSP (coercing SMB) and PrinterBug (coercing RPC), but both cannot be relayed to LDAP 💀💀💀
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not that it should be preached, but...

security hygiene > the semi-annual CVE apocalypse
The day the internet broke, and most of it is too old to fix.
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bohops retweeted
We're hiring a Principal Security Research Engineer (AI Security)! Looking for someone with a strong background in threat research, detection & offensive security, and a passion for detecting and preventing AI threats.

Apply here: tinyurl.com/2pd2u8sr
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