cr3ghost

94 posts

cr3ghost

cr3ghost

@cr3ghost

A student passionate about reverse engineering, windows internals, anti-cheat research, malware research, and exploit research. Aspiring red teamer.

Australia Se unió Mayıs 2026
239 Siguiendo508 Seguidores
dawgyg - WoH
dawgyg - WoH@thedawgyg·
very well said... i still am going to make it a point to drop atleast 1 windows 0day on X this summer tho..
Robert Graham@robertgraham

We know what probably happened. From what we see publicly, NightmareEclipse doesn't communicate well, is emotionally immature, and appears to want to extort Microsoft. Almost certainly, this played a part in the conflict between them and Microsoft -- it's probably as much NightmareEclipse's fault as Microsoft's. With that said, everything Florian says is correct. It doesn't excuse Microsoft's failures. They are supposed to be the responsible one, When there is miscommunication or dispute, it's always allowable to drop 0day, regardless whose fault it is. It's Microsoft's job to avoid that, even when they really aren't at fault for the miscommunication. But Microsoft has convinced themselves of the opposite, that "responsible" disclosure means only the responsibilities of the vuln finder. Vuln finders have no responsibility. Dropping 0day is responsible. Responsible companies don't have so many bugs. We let industry subvert the disclosure process. Instead of working to secure their code, vendors have tricked people into believing in the myth of "responsible disclosure", that vendors should be given time to fix and patch their bugs so they are never to blame for the bugs to begin with. That's why you have customers still buying Fortinet appliances even though their bugs continue to be major sources of customers getting hacked. Customers shrug their shoulders: as long as Fortinet has a vulnerability disclosure program and releases patches, they aren't responsible for when hackers keep breaking into their boxes. This is garbage. Vendors are still responsible for preventing bugs in the first place, a responsibility that doesn't go away just because they patch. Regardless of what happened, Microsoft's threats are a gross violation of ethics in the industry.

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Smukx.E
Smukx.E@5mukx·
As promised Rustypacker has released today. A native Rust shellcode packer with a GUI Repo:- github.com/Whitecat18/Rus… What did I bring to the table :- - Indirect syscalls for memory allocation and protection by default. - AES-256-CBC, XOR, UUID-encoded shellcode encryption. - Six self-injection paths through callback APIs. - Fiber switch self injection. - Three remote-process injection. - Anti-debuging Techniques. - NtDelayExecution sleep evasion with placement control. - Domain pinning evasion. - Output formats: EXE, DLL, DLL Sideload (Sideload or Proxy with auto-generated .def for unhandled exports). - Builds for x86_64-pc-windows-msvc and x86_64-pc-windows-gnu. - DllMain stays a NO-OP. Payload rides four COM-friendly exports: Run, DllRegisterServer, DllGetClassObject, DllUnregisterServer. - crt-static link. No runtime DLL footprint. - XOR-obfuscated NT API names embedded in the binary. - Generated target/ auto-cleaned after each successful build. #redteam #malwaredev #rust #offsec #infosec #windbg
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Rad
Rad@rad9800·
There is nothing that brings me greater joy on this plannet than beans.
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cr3ghost
cr3ghost@cr3ghost·
@ChaoticEclipse0 @_xpn_ you should create a fund page (so we can donate), so you can get top lawyers. get the media involved as well. they are trying to make an example out of you. but you should make example out of them.
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Nightmare Eclipse
Nightmare Eclipse@ChaoticEclipse0·
Everyone except me ? We are in fact still in court over this.
Microsoft Security Response Center@msftsecresponse

Over the past several days, we have been listening to the conversation around coordinated disclosure and the relationship between security researchers and vendors. We recognize that this relationship is both critical and, at times, fragile. We deeply value the security community, and will continue to take your feedback seriously. To be clear about our approach to legal matters, we have no intention to pursue action against individuals conducting or publishing their security research. When an individual breaks the law and engages in malicious activity causing real harm to our customers, we will work with law enforcement as appropriate. We recognize the work that goes into researching and submitting a vulnerability. We are committed to approaching every interaction with transparency, clear communication, and professionalism. We continue to believe strongly in Coordinated Vulnerability Disclosure as the foundation for protecting customers and improving our products. Each year we process a high volume of vulnerability reports. That volume continues to grow and will continue with the rise of AI-enabled research. We acknowledge that some interactions have fallen short and are working to learn from them. Many of us have experience on both sides of this work, as researchers reporting vulnerabilities and as responders triaging and assessing them. That perspective informs how we approach this feedback and the importance we place on getting it right, particularly as the volume and complexity of research continues to grow. The security community plays a vital role in helping us protect customers. We are committed to maintaining a constructive and respectful relationship and growing together. We know that, given the nature of this work, there will at times be misunderstandings. We remain committed to engaging in good faith and to providing a respectful and professional experience for all researchers, regardless of past interactions.

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cr3ghost
cr3ghost@cr3ghost·
@Pirat_Nation tell me again why everyone is integrating AI into their organisation and technologies?
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Pirat_Nation 🔴
Pirat_Nation 🔴@Pirat_Nation·
Meta confirmed a vulnerability in its AI-powered Instagram support assistant that was exploited to take over user accounts. The AI could be convinced to change the email linked to an account without properly checking who was making the request. Once the email was changed, hackers could reset the password and lock out the real owner. Meta has fixed the vulnerability but they didnt explain how the hell this happened
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cr3ghost
cr3ghost@cr3ghost·
@nnwakelam i agree. Ruined industry. it is getting harder and harder to determine skillset because of AI slop.
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Nate
Nate@nnwakelam·
honestly if you can't make money in an age where you can literally ask a computer to hack something and it just does it for you you don't deserve the money anyway
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cr3ghost
cr3ghost@cr3ghost·
Alexandre Borges has published over 700 pages of free security, malware and vulnerability research. A complete Malware Analysis Series covering Windows, macOS, iOS, Linux and shellcode. An Exploiting Reversing Series covering Windows kernel exploitation, Hyper-V, Chrome, and a three-part deep dive on CVE-2024-30085. No paywall. No course. Just research. Free as in beer. exploitreversing.com Author: @ale_sp_brazil #ReverseEngineering #MalwareAnalysis #InfoSec
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cr3ghost
cr3ghost@cr3ghost·
Gamers worry about kernel anti-cheats when any user-mode software (ring-3) can already read your passwords, browser history, log your keystrokes, record your camera, steal your files, and exfiltrate your data. Spyware has never needed the kernel. Kernel access is not what makes something spyware. Cheaters have been loading kernel drivers and hypervisors for years to hide from detection. A usermode anti-cheat has no way to detect something already operating below it. Loading at boot is necessary. If anti-cheat loads after a cheat driver is already in the kernel, it has already lost. Read: Why Anti-Cheat Software Utilize Kernel Drivers secret.club/2020/04/17/ker… Author: @vm_call from @the_secret_club #AntiCheat #GameSecurity
cr3ghost@cr3ghost

Vanguard runs at boot because cheats run at boot. Riot clones the PML4 table, inserts a shadow entry into a free slot, hooks SwapContext, and swaps CR3 per-thread at context switch time. If it was spyware, researchers would have found it. They found this instead. Reverse engineering is an art. When in doubt, reverse it. #ReverseEngineering #Vanguard #InfoSec Full RE breakdown by @Xyrem256: reversing.info/posts/guardedr…

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EZ
EZ@IAMERICAbooted·
I have a novel idea: Microsoft should stop putting its customers at risk by shipping insecure defaults then blaming their customers for not securing it. I wonder what the legalities of that are?
Microsoft Security Response Center@msftsecresponse

Over the past several days, we have been listening to the conversation around coordinated disclosure and the relationship between security researchers and vendors. We recognize that this relationship is both critical and, at times, fragile. We deeply value the security community, and will continue to take your feedback seriously. To be clear about our approach to legal matters, we have no intention to pursue action against individuals conducting or publishing their security research. When an individual breaks the law and engages in malicious activity causing real harm to our customers, we will work with law enforcement as appropriate. We recognize the work that goes into researching and submitting a vulnerability. We are committed to approaching every interaction with transparency, clear communication, and professionalism. We continue to believe strongly in Coordinated Vulnerability Disclosure as the foundation for protecting customers and improving our products. Each year we process a high volume of vulnerability reports. That volume continues to grow and will continue with the rise of AI-enabled research. We acknowledge that some interactions have fallen short and are working to learn from them. Many of us have experience on both sides of this work, as researchers reporting vulnerabilities and as responders triaging and assessing them. That perspective informs how we approach this feedback and the importance we place on getting it right, particularly as the volume and complexity of research continues to grow. The security community plays a vital role in helping us protect customers. We are committed to maintaining a constructive and respectful relationship and growing together. We know that, given the nature of this work, there will at times be misunderstandings. We remain committed to engaging in good faith and to providing a respectful and professional experience for all researchers, regardless of past interactions.

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Pirat_Nation 🔴
Pirat_Nation 🔴@Pirat_Nation·
Windows on ARM Gaming Gets Major Anti-Cheat Support Nvidia’s new RTX Spark platform is helping solve one of the biggest problems of Windows on ARM gaming: anti-cheat support. Anti-cheat software runs at a very low level of the operating system and is required by many online games, If the anti-cheat doesn’t support ARM, the game usually won’t launch, regardless of how powerful the hardware is. Nvidia is working with major anti-cheat providers like Easy Anti-Cheat, BattlEye, and Denuvo to add support for games including Fortnite, VALORANT, League of Legends, and PUBG.
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cr3ghost
cr3ghost@cr3ghost·
@msftsecresponse “Misunderstanding”? LOL 😂 did your communications team write this?
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Microsoft Security Response Center
Over the past several days, we have been listening to the conversation around coordinated disclosure and the relationship between security researchers and vendors. We recognize that this relationship is both critical and, at times, fragile. We deeply value the security community, and will continue to take your feedback seriously. To be clear about our approach to legal matters, we have no intention to pursue action against individuals conducting or publishing their security research. When an individual breaks the law and engages in malicious activity causing real harm to our customers, we will work with law enforcement as appropriate. We recognize the work that goes into researching and submitting a vulnerability. We are committed to approaching every interaction with transparency, clear communication, and professionalism. We continue to believe strongly in Coordinated Vulnerability Disclosure as the foundation for protecting customers and improving our products. Each year we process a high volume of vulnerability reports. That volume continues to grow and will continue with the rise of AI-enabled research. We acknowledge that some interactions have fallen short and are working to learn from them. Many of us have experience on both sides of this work, as researchers reporting vulnerabilities and as responders triaging and assessing them. That perspective informs how we approach this feedback and the importance we place on getting it right, particularly as the volume and complexity of research continues to grow. The security community plays a vital role in helping us protect customers. We are committed to maintaining a constructive and respectful relationship and growing together. We know that, given the nature of this work, there will at times be misunderstandings. We remain committed to engaging in good faith and to providing a respectful and professional experience for all researchers, regardless of past interactions.
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cr3ghost
cr3ghost@cr3ghost·
@eversinc33 looks awesome. how long did you take? And what do you plan on adding next?
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eversinc33 🤍🔪⋆。˚ ⋆
Spent the last 2 weeks working on a devirtualizer for VMProtect 3.5 and learning Remill. Idk yet if I will blog about it, but I at least wanted to publish the code: github.com/eversinc33/Mog… The approach is different from my last blog, as it lifts the whole x86 code of the VM
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cr3ghost
cr3ghost@cr3ghost·
@opinali you do not need kernel privileges to steal your data. That can be done from normal privilege level (user-mode). meaning any software you install.
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Osvaldo Pinali Doederlein
@C5venom I'm very happy that I don't care about competitive multiplayers because all this stuff is horrifying. Would never play any game that needs privileged kernel access for any reason whatsoever. Regular DRMs like Denuvo are bad enough sometimes but at least userland.
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cr3ghost
cr3ghost@cr3ghost·
People complain about kernel anti-cheat until they see what EAC actually does to stay ahead. CR3 encrypted inside EPROCESS. KdpTrap hooked to catch anything touching it during context switches. NtCreateUserProcess emulated so cheats grabbing DirectoryTableBase at process creation get a fake one. This is what fighting kernel-level cheats actually looks like. Full breakdown by 0xavx: web.archive.org/web/2025042514… #AntiCheat #GameSecurity
cr3ghost@cr3ghost

People complain about kernel anti-cheat while cheat devs are literally writing custom hypervisors to hide from detection. The threat model demands ring-0. Read how anti-cheats actually detect system emulation and tell me they're overreacting: secret.club/2020/04/13/how… Authors: @the_secret_club #AntiCheat #InfoSec #GameSecurity

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cr3ghost
cr3ghost@cr3ghost·
@curi0usJack I agree. That is what I’m trying to say. it’s good to have both skills. Sorry, if I came across rude. I’m still learning. Red teaming has many things game hackers do NOT know at all.
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Jason Lang
Jason Lang@curi0usJack·
@C5venom Common take from game hackers, who have always held their heads proud to red teamers. Game hacks are indeed incredible, but the exploit itself is only a small plate among many that red teamers must keep spinning. There is room for both and without ego.
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cr3ghost
cr3ghost@cr3ghost·
Vanguard runs at boot because cheats run at boot. Riot clones the PML4 table, inserts a shadow entry into a free slot, hooks SwapContext, and swaps CR3 per-thread at context switch time. If it was spyware, researchers would have found it. They found this instead. Reverse engineering is an art. When in doubt, reverse it. #ReverseEngineering #Vanguard #InfoSec Full RE breakdown by @Xyrem256: reversing.info/posts/guardedr…
cr3ghost@cr3ghost

People complain about kernel anti-cheat until they see what EAC actually does to stay ahead. CR3 encrypted inside EPROCESS. KdpTrap hooked to catch anything touching it during context switches. NtCreateUserProcess emulated so cheats grabbing DirectoryTableBase at process creation get a fake one. This is what fighting kernel-level cheats actually looks like. Full breakdown by 0xavx: web.archive.org/web/2025042514… #AntiCheat #GameSecurity

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cr3ghost
cr3ghost@cr3ghost·
@cyb3rops do you think it’s bad management? apparently bad things happen with bad leaders.
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Florian Roth ⚡️
Florian Roth ⚡️@cyb3rops·
I don’t know what happened between Microsoft and #NightmareEclipse behind closed doors Maybe Nightmare Eclipse was unreasonable. Maybe Microsoft was. Maybe both. But I think Microsoft badly misjudged this situation. When you’re the largest software vendor on the planet, you don’t get to behave like an angry individual in an internet argument. You have to be the adult in the room. Deleting repositories, talking about criminal investigations and turning the whole thing into a public fight was a mistake. The damage from that goes far beyond this one researcher. What surprised me most is how quickly people started sharing their own MSRC stories afterwards. - Months without responses - “Working as intended” - Bounty disputes - Reports that went nowhere People don’t suddenly start telling those stories for no reason. I think Microsoft broke a lot of porcelain here. And for what exactly? I don’t see much upside.
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cr3ghost
cr3ghost@cr3ghost·
Your blog tandasat.github.io/blog/ paired with github.com/tandasat/MiniV… are some of the cleanest references for anyone trying to understand hypervisor internals on real hardware. The codebase and your writing together fill a gap almost no other public resource does. Genuinely appreciate you making this accessible, it lowered the barrier for a lot of people getting into this space. Thank you!
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Satoshi Tanda
Satoshi Tanda@standa_t·
Excited to announce that registration for my remote hypervisor class in October is open! tandasat.github.io The class teaches you how hypervisors can be used for security and research, including hardening, fuzzing and reversing, as well as common designs and vulnerabilities
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