Leftas @Leftas7

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

a week ago

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

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Perfect microcosm of Wikipedia: I tell Jimmy Wales that JangaFX was written in Odin. He asks for a source. A JangaFX founder replies to him and confirms that it was. Jimmy ignores his (and my) response, while replying to later posts in the thread:

This 1-pager from Xusheng Li on GDB internals of how watchpoints are implemented is a delight to read! (especially that double-write behaviour false positive - I did not know about that)

We hired a backend guy recently who didn’t know half the buzzwords. No Saga, no CQRS, shaky on K8s. On paper, easy reject. Then we gave him a real prod-ish bug: sporadic 500s, p95 spikes, only on one endpoint. He did 3 things: 1. Asked for repro + timeline. “When did it start? What changed? Any new feature release?” 2. Cut the problem space. Logs first, then metrics, then a single failing request ID. 3. Formed a hypothesis, tested it, wrote down what each result would mean. Found it in 25 mins: connection pool exhausted from one code path leaking retries + no timeout. I’ll take that over memorized concepts anyday. This is what people don't get right, companies hire for fundamentals + debugging. You can teach patterns. You can’t teach calm thinking under failure.

gf just asked if i would still love her if she lived in china and we didnt know each other

The PS3 alone had 512mb of ram in total (256MB of system RAM and 256MB of video memory) and it ran most demanding games like GTA V. A single tab taking up to 1.2GB of RAM is some crazy unoptimized work, how can this possibly be more demanding than a fully fledged video-game? This is unacceptable, especially considering how much RAM costs today...

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shaur @xXshaurizardXx

6 months ago

Like ur telling me we did this with 512mb of grddr3 in 2012 & yet one tab of twitter . com takes 1.2gigs... what r we doing as a society man

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I'm getting increasingly convinced that 95.4% of all software engineering problems are because 1) latency is highs and 2) people code like latency is low. Let me get through a couple of examples:

Wouldn't be here, if it weren't for the people like lms(dev), gp(arent), MulleDK19. Thank you guys for answering those dumb questions, hahah.

vx-underground @vxunderground

2 years ago

We have a profound respect for the video game cheat makers and video game reverse engineers. The video game cheat producers and video game reverse engineers are very much disenfranchised by the information security community. There is an innate bias and condescending tone

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Them: "You can't beat the compiler" The Compiler: godbolt.org/z/Y35qM5Tnz

xz bd engineer 1: bro, we need a way to probe the address space to make sure we never SEGV sshd xz bd engineer 2: we'll just do a pselect syscall with empty fd sets, a timeout of 1 nanosecond and the addr we want to probe is passed as the sigmask pointer, EFAULT means unmapped

“Coding” was never the source of value, and people shouldn’t get overly attached to it. Problem solving is the core skill. The discipline and precision demanded by traditional programming will remain valuable transferable attributes, but they won’t be a barrier to entry. Many times over the years I have thought about a great programmer I knew that loved assembly language to the point of not wanting to move to C. I have to fight some similar feelings of my own around using existing massive codebases and inefficient languages, but I push through. I had somewhat resigned myself to the fact that I might be missing out on the “final abstraction”, where you realize that managing people is more powerful than any personal tool. I just don’t like it, and I can live with the limitations that puts on me. I suspect that I will enjoy managing AIs more, even if they wind up being better programmers than I am.

vx-underground @vxunderground

2 years ago

We have a profound respect for the video game cheat makers and video game reverse engineers. The video game cheat producers and video game reverse engineers are very much disenfranchised by the information security community. There is an innate bias and condescending tone

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September & October will be interesting months for Rockstar fans including the possibility of GTA 6 being announced 👀

🧵You're probably wondering how Prighozin was able to move so fast. That's right, he had the help of ChatGPT! Here's 10 prompts to help you overthrow the treasonous miscreants that have been ruining the motherland: 👇👇👇

The Uber hack is quite severe and wide ranging. Wishing their blue teams the best of luck and love during this understandably difficult period. Some thoughts & observations based on what we've seen so far 👉 1/N

low level hacking: accidentally becoming a world expert on a very specific thing only like 8 other people know about (including the developers)

I thought making maps of GPS/GNSS interference might turn out boring. But 3 days ago suddenly the Baltic (Poland, Lithuania, Latvia, Kaliningrad) started having some of the most significant interference on the planet, after weeks of nothing unusual. Why now?

Tikhanovskaya, 🎵 Whatever will be, will be, Elections must always be free, Tikhanovskaya. 🎵 ✌🤍❤🤍

What a headline

I need this. Teaching binary:

When you are dead, you do not know that you are dead. The pain is felt by others. The same thing happens when you are stupid #quote