Chris Isaias @_call_gate
Penetration Testing & Reverse Engineering. . . Phd(c), Msc (RHL), ESDC fellow, IEEE snr, FIRST liaison, CISSP, CRTO, PNPT, CRTP Sparta, Greece Joined August 2023-
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Short writeup about bug which helped me to win Meta BountyCon 2024 hacking event vulnano.com/2025/09/remote…
You want to load your shellcode in .NET without calling VirtualProtect? Use RuntimeHelpers.PrepareMethod to create a predictable RWX memory region for you. This method also doesn't require a delegate function pointer, since you override a .NET method. github.com/Mr-Un1k0d3r/Do…
De-anonymization of the Conti group
Last week, I focused on Active Directory Admins (ADAs). x.com/PyroTek3/statu… This week, let's look at built-in privileged groups: * Account Operators - should be empty per Microsoft due to highly privileged access in AD. * Backup operators - should only contain backup…
Last week, I focused on Active Directory Admins (ADAs). x.com/PyroTek3/statu… This week, let's look at built-in privileged groups: * Account Operators - should be empty per Microsoft due to highly privileged access in AD. * Backup operators - should only contain backup… https://t.co/WltLXFUcgt
Good checklist, although. github.com/0xmaximus/Gala…
I reverse engineered Lockbit's Linux ESXi variant, also explaining how I did some of the steps! For the fun of it, cause reverse engineering is lots of fun. Enjoy! hackandcheese.com/posts/blog1_lo…
Here’s a warning: as agents are granted more autonomy and integrated deeper into systems, security has to be a priority. In this post, @GaryMarcus and I explore the security issues of coding agents and show that fixes aren’t so easy. It’s gonna be wild. garymarcus.substack.com/p/llms-coding-…
Here is the full writeup on my full Bug Bounty Challenge, I documented. I hope this will answer all questions I keep receiving: medium.com/@YourFinalSin/…
Defcon Workshop: Killing and Silencing EDR Agents Like an Adversary github.com/arosenmund/def…
I have released all my prep notes prior to obtaining the #OSEE from @offsectraining. This includes material consumed before the AWE and after! You can find a link to it here: github.com/wetw0rk/AWE-PR…
A tale of Reverse Engineering 1001 GPTs: the good, the bad and the ugly Last year, I spent 5 months reverse engineering custom GPTs from @OpenAI. In this video, I share all the learnings from: prompt engineering, injection, leaks, talk about plagiarism, protection prompts,…
Always nice to see kevs books making an appearance at Blackhat Met some new faces today at the innovators and investment summit. Left disappointed with the speaking content (perhaps I've been to one too many events). Who are a few new faces in cyber that are great at…
I really want one!
I remember that I had to do some research online on how to make exploits for vulnerabilities over MS-RPC. With this blog, I hope to fill the gap on the lacking information available online on how to make these yourself. incendium.rocks/posts/Exploit-…
Announcing our whitepaper on the future of endpoint security. preludesecurity.com/runtime-memory…
Last year I found a XSS bug in Google IDX here's a detail writeup about it. Hope you will enjoy it's kinda lengthy :p Shoutouts to @MtnBer for finding the original bug in Gitlab and @kl_sree @sivaneshashok for the required chains to complete the exploit. sudistark.github.io/2025/07/02/idx…
obfus.h is the very powerfull compile-time obfuscator for C (win32/64). Supports virtualization, anti-debugging, control flow obfuscation and other code mutation techniques to prevent disassembly or decompilation. #CodeSecurity #Obfuscation #infosec github.com/DosX-dev/obfus…
Good Morning! Just published a blog post diving into Windows Kernel LFH exploitation in the latest Windows 24h2 build, Focusing on controlled allocations to achieve arbitrary read/write in the kernel. r0keb.github.io/posts/Modern-(…
To celebrate our badge launch, we're giving away FIVE free 6-month licenses to @PentesterLab. ✅ Comment BADGELIFE and retweet this post to enter. Additionally, pre-order a custom badge at shop.bugbountydefcon.com for a chance to win one of FIVE Annual VIP+ subscription to…
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