t.usui

Yeah, my CTF team got 31st place in #defconctf quals!!

@D00m3dR4v3n Hello, I am Usui, a security researcher at a Japanese Telecom company. I would like to disclose a new code injection technique, which I will give a presentation at BHUSA 2024 (#bytecode-jiu-jitsu-choking-up-interpreters-to-force-execution-of-malicious-bytecode-38682" target="_blank" rel="nofollow noopener">blackhat.com/us-24/briefing……), to you. I am glad if you allow me to send a DM to you on X.

@CapeSandbox Hello, I am a security researcher at a Japanese Telecom company. I would like to disclose a new code injection technique, which I will give a presentation at BHUSA 2024 (#bytecode-jiu-jitsu-choking-up-interpreters-to-force-execution-of-malicious-bytecode-38682" target="_blank" rel="nofollow noopener">blackhat.com/us-24/briefing…), to you. I am glad if you allow me to send a DM to you on X.

We are very happy to announce that our paper entitled "My Script Engines Know What You Did in The Dark: Enhancing Engines into Script API Tracer" has been accepted at the ACSAC 2019 in Puerto Rico. We hope to see you at the conference! acsac.org/2019/program/ @ACSAC_Conf

Now, I'm attending ACSAC 2018!

Great news that newest IDA Pro free supports 64bit!

We released IDA Freeware 7.0 for Windows/Linux/Mac: hex-rays.com/products/ida/s…

Looks interesting. Crop: C-style language ROP Compiler for CFI-hardened system attacks.

A bit interesting point of this sample is that it seems to have two ROP chains: for 32bit and 64bit.

C:\Users\{Username}\AppData\Roaming\Microsoft\Word\STARTUP\..wll is one IOC of this CVE-2017-11826 sample. twitter.com/0x009AD6_810/s…

This CVE-2017-11826 sample exploits with RETsled and ROP using msvbvm60.dll. EMET ROPGuard probably stops it. twitter.com/0x009AD6_810/s…

FOR610, now!

Eating lunch provided by ENDGAME at #DFIRSummit. Thx!

Forensics of Apple platforms is raising now? Three presentations are given at DFIR Summit.

Now I'm at #DFIRSummit.

UniversalROP is a new smart ROP tool to generate exploitation gadgets using @unicorn_engine & Z3 solver. github.com/kokjo/universa…

1345 commits!! Thank you all! Yara Rules Project Team yararules.com

My first tutorial series on ARM Assembly Basics is finally finished. If you're new to ARM, this tutorial is for you: azeria-labs.com/writing-arm-as…

hmm... what happened on Plaid CTF account?

rtfobj may be slightly better judging from my daily use.