HackerTube

THE VIDEO SHELF · x86 undocumented instructions

Breaking the x86 Instruction Set

Christopher Domas presents at Black Hat 2017 how page fault analysis and processor fuzzing can exhaustively search the x86 instruction set. The talk uncovers undocumented instructions and hardware bugs and shows limits of disassemblers.

Why HN readers recommended it

HN recommends it as a clever, entertaining and easy-to-follow talk on finding hidden x86 instructions with the Sandsifter tool.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
Black Hat
Topic
x86 undocumented instructions
Format
talk
Level
advanced
HN recommenders in dataset
9
HN mentions in dataset
17
Recommendation years in dataset
2017–2022

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • > I trust its disassembler (especially for mainstream languages) more than almost any other disassembler Might I suggest Christopher Domas' Black Hat talk "Breaking the x86 ISA", along the way of which he demonstrates the limitations of all disassemblers out there, including IDA's :) Talk: …

    AceJohnny2 on Hacker News · 2017-09
    In IDA: What's new in 7.00
  • One of my favourite talks I watched was "Low Cost Non-Invasive Biomedical Imaging - An Open Electrical Impedance Tomography Project" [LINK] As it presented an interesting technique I'd never heard of before, along with an implementation. Also I thought the 'Breaking the x86 Instruction Set' …

    anfractuosity on Hacker News · 2018-01
    In Ask HN: What’s your favorite talk from 2017?
  • my favorite were: - How the reputation economy is creating data-driven conformity [LINK] - DEF CON 25 (2017) - Weaponizing Machine Learning [LINK] - BlackHat 2017: Breaking the x86 Instruction Set [VIDEO]

    DyslexicAtheist on Hacker News · 2018-01
    In Ask HN: What’s your favorite talk from 2017?

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.