Malware analyst and cybersecurity professional focused on Windows kernel internals and reverse engineering.

Singapore
Joined October 2021
Splintersfury retweeted
So, universal RCE for Apache mod_php is easy. For php-fpm it is not, still working on it.
php2shell Tomorrow is a helluva day.
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Splintersfury retweeted
Stage 1 heap leak no offsets needed. Stage 2 libphp leak: needs the correct ZVAL_PTR_DTOR offset. Stage 3 RCE: needs the correct zif_system offset. The catch here is those offsets are specific to the targets PHP build.
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Splintersfury retweeted
Working RCE against PHP 8.5.12 (the 2026-10-21 security release that fixed CVE-2026-109618/109619). Pure logic bug — no memory corruption, ASAN-clean, orthogonal to the CVE-2026-109618/19 class. Receipt: uid=33(www-data) over HTTP, one-shot #infosec #php2shell #php
.... Dude the internet is cooked .... This can't be patched out 😈... #CyberSecurity #infosec
Readers added context they thought people might want to know
The claimed RCE on fully-patched PHP 8.5.12 requires a custom lab app with a destructor gadget plus deliberate session.serialize_handler mismatch (php_serialize writes, legacy php reads) and non-default settings like cleanup=Off; this is an app flaw, not core PHP RCE. github.com/rafalohaki/php… php.net/manual/en/sess…
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Splintersfury retweeted
#php2shell. seems to be hard to exploit (mem corruption vs aslr). yes, public pocs now are lab-only rces. this is a good one: github.com/9bie/php2shell-by… limited to an unrealistic one-worker php-fpm. but it can be upgraded to N workers if we manage to hold N-1 workers :) here it is.
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Current information I have on php2Shell: - The RCEs requires the attacker to obtain memory addresses which are typically protected by ASLR. - I suspect the original author (lcfr_hax) likely has a reliable exploit which leads to stable code execution. - Most of the PoCs being posted are completely non-functional AI slop. - There is at least 1 working non-slop exploit being passed around, but it's reliant on bruteforcing for ASLR bypass, so not particularly impactful. - Rumor of ITW exploitation are patchy. There are attempts being seen using the non-functional leaked RCE, or variants that are config / system specific. - Some rumors point towards a known-working exploit being used by threat actors (I've personally confirmed this specific exploit works, but the ASLR bypass technique is unreliable at best and massively limits the potential impact). - I'd expect heavy ITW exploitation in the next few weeks based on how many people are looking at this. Though, success rates will vary heavily based on the specific exploit chain.
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Splintersfury retweeted
It took 17 minutes to turn the Gitlab RCE to a working HEAP exploit using Gemini 4 Argon and the advisory, then another hour for the complete chain - super fun for someone like me without any binary exp or source code review experience, new cyber era! Great find by @joaxcar!
The Hacker News
@TheHackersNewsOct 21
🚨 CRITICAL: GitLab flaw (CVSS 10.0) affects 12 years of releases. CVE-2026-110264 could allow unauthenticated remote code execution on self-managed servers. Read - thehackernews.com/2026/10/cr…
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Splintersfury retweeted
609 tok/s on deepseek-v4.1-flash-1017 has just been reached We are approaching Cerebras speeds at home
I just hit 410 tok/s on deepseek-v4.1-flash-1017 on 4x RTX Pro 6000s this is insane.
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It's been 3 months since we made our AI-developed decompiler, Kuna, public. We are now at the top of DecBench (for C). How did it happen? How do we know it's good? Are there any fundamental improvements? A short post on it: noelo.org/blog/kuna-pipeline…
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Splintersfury retweeted
We are hitting levels of speed you can't imagine. Deepseek-v4.1-flash-1017 @ 675.9 tok/s c1 Recipes coming
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Splintersfury retweeted
Backd00r🐳(蓝V互关)
@TTByawOct 21
github.com/9bie/php2shell-by… 确实牛逼,没错这个就是真的exp了
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Splintersfury 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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Splintersfury retweeted
Dr. Zhiniang Peng (@edwardzpeng) reveals how he discovered 200+ confirmed vulnerabilities in Microsoft Windows with the help of AI. The game has changed completely. 🤯
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Splintersfury retweeted
You COULDNT HAVE FUCKING WAITED 14 Hours. i hope your forever blacklisted from cybersec/related industries for dropping a unpatched critical 1day on twitter you fucking idiot
This quoted post is unavailable.
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Splintersfury retweeted
Let’s go: DeepSeek just open-sourced DeepInfer, the inference engine behind its production services. Sharing this makes open models efficient at scale is a big deal: model weights alone don’t make AI cheap to run. But *this* helps. Also notable: it runs on Huawei chips, not just Nvidia.
🚀 Introducing DeepInfer, our in-house inference framework, now fully open source! Powering DeepSeek-V4.1-Flash at scale with high throughput and low latency. We’re sharing our production stack to help the community lower compute costs, reduce energy use, and make AI more affordable. 🔗 github.com/deepseek-ai/DeepI… 1/4
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Splintersfury retweeted
Replying to @ashxhart
Using your sauce, sir 🫡 xitter.cf/miaai_lab/status/21121…
Run DeepSeek V4.1 Flash 1017 on 2x DGX Sparks ✨ - 1M total KV pool, 512K context - 75 tok/s on prose, single stream - 130 tok/s on prose, 4 concurrent streams - Prefill 2000-2175 tok/s - EXL3-EAQv1, 2.9 bpw The quant in this recipe got about the same calibration as my GLM 5.3 Flash, with some extras. Feedback would be appreciated! Special thanks to @bertholomusai and all the contributors for the engine work, and to @ashxhart for TensorFold. Get it here: github.com/MiaAI-Lab/DeepSee…
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Insane alpha, must read, might well redefine this economy. Everything me, Zephyr etc have been saying about the real profitability of the frontier inference is powerfully vindicated
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Splintersfury retweeted
swyx
@swyxOct 20
deepseek posted way more alpha on their zhihu page, if you only read twitter you are reading the laowai approved stuff "Based on this framework, we have implemented a high-throughput, low-latency large-scale inference service for DeepSeek V4.1 Flash. Currently, the service throughput of a single cluster is 155 trillion tokens/day, and the overall revenue is $38 per card per hour (based on off-peak prices)." it costs roughtly $5-10 per gpu hour so depseek is claiming 80% serving margin at THEIR prices lololololol
🚀 Introducing DeepInfer, our in-house inference framework, now fully open source! Powering DeepSeek-V4.1-Flash at scale with high throughput and low latency. We’re sharing our production stack to help the community lower compute costs, reduce energy use, and make AI more affordable. 🔗 github.com/deepseek-ai/DeepI… 1/4
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Splintersfury retweeted
DeepSeek infer is the cloud version of DwarfStar, conceptually. Vertical inference engine for one model and specific hardware. Good move. And well, a lesson to the ones that criticized this approach as well.
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