domas
@xoreaxeaxeax
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// hacker math & stuff // M/o/Vfuscator // sandsifter // project:rosenbridge // ..cantor.dust.. // REpsych // the memory sinkhole // nightshyft //
Joined April 2015
GOD MODE UNLOCKED: hardware backdoors in some x86 CPUs https://t.co/Ph0IAL0Pyw White paper coming tomorrow. @BlackHatEvents
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So is branchless computation hardened against #spectre and #meltdown? Here's a secure, branchless DOOM ... 7 hours in, 1 frame rendered. https://t.co/QyeQ7g4ojS
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VIDEO: “Breaking the x86 Instruction Set” by @xoreaxeaxeax #BHUSA 2017 Briefing presentation
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sandsifter results: secret instructions; bugs in IDA, gdb, VS, valgrind, capstone, qemu; flaws in hypervisors; critical hardware locks; etc.
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new project: sandsifter x86 processor fuzzer; exposes hidden instructions in x86; https://t.co/pefTtuHt88
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I'll be demonstrating the first x86 'killer poke' instruction found in 20 years at #BHUSA next week; processor DoS from ring 3
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copy/paste/search/replace are turing-complete so, brainf@!# interpreter, in vanilla vim. https://t.co/ZVaGr1eGfz
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Hmm. All programs reduce to the same instruction stream. Left, AES; right, Minesweeper. https://t.co/guE7JhoIaI
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and the randomfuscator just randomly throws crap together: https://t.co/p3WyNnMZHX (HT @angealbertini @f4grx) http://t.co/DsnESKsfsj
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the rrrrrrfuscator compiles C to 1-bit shifts... https://t.co/IAVumbvp0p
http://t.co/MmZogx4MuQ
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x86 SUB is turing complete, so here's the SUBfuscator - compiles C into subs, and only subs: https://t.co/mFKtnvt7eY
http://t.co/VxZOu0XwbP
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x86 XOR is turing complete, so here's the XORfuscator - compiles C into xors, and only xors: https://t.co/qcDWHsjoK7
http://t.co/rAMILouCAU
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M/o/Vfuscator updated with instruction & register shuffling to prevent (simple) decompilation http://t.co/apsUd18JH3
http://t.co/79EEywEGaZ
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M/o/Vfuscator2 includes a mov-only floating point emulator. So I built a 3d graphics engine. Here's a spinning cube: http://t.co/Sr6Le7r5d0
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REpsych: steganography, obfuscation, and psychological warfare via control flow graph manipulation, now on github:
github.com
Psychological warfare in reverse engineering. Contribute to xoreaxeaxeax/REpsych development by creating an account on GitHub.
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