Hacker News: xorpd

New comment by xorpd in "ICJ orders Israel to prevent genocide in Gaza, stops short of ordering ceasefire"

xorpd — Sat, 27 Jan 2024 17:13:37 +0000

Let's start by returning the Israeli hostages

Xchg Rax, Rax

xorpd — Tue, 05 Jan 2021 16:37:04 +0000

Article URL: https://esoteric.codes/blog/xchg-rax-rax

Comments URL: https://news.ycombinator.com/item?id=25647234

Points: 3

# Comments: 0

ReversingHero

xorpd — Sun, 09 Aug 2020 12:52:00 +0000

Article URL: https://www.reversinghero.com

Comments URL: https://news.ycombinator.com/item?id=24099286

Points: 2

# Comments: 0

New comment by xorpd in "Reverse engineering course"

xorpd — Fri, 17 Jan 2020 12:31:02 +0000

Self plug: https://www.reversinghero.com Learn reverse engineering by solving 15 challenges.

New comment by xorpd in "Reverse Engineering for Beginners [pdf]"

xorpd — Wed, 27 Nov 2019 07:56:35 +0000

Some very serious work was put in writing this book. I admit I never fully read it from beginning to end, but from the parts I did read I think it is very well written.

My general advice for beginners who want to get into reverse engineering is to read less books, and try to actually reverse engineer small and self contained programs. Reverse engineering has been my job for many years now, but it still very difficult for me to consume a long text talking about a reverse engineering project without touching the code on my own.

If you are interested in a hands-on experience, I recently made a self learning kit for learning reverse engineering for beginners. It is called ReversingHero. (https://www.reversinghero.com). It is one binary file made of 15 levels of increasing difficulty, teaching reverse engineering. It works in Linux environment, on the x64 series, and can also be completed using WSL (Windows subsystem for linux).

ReversingHero also contains an accompanying (paid) video solutions. The video solutions contain 12+ hours of step by step solutions to all the levels.

Learn Reverse Engineering by solving 15 challenges

xorpd — Fri, 25 Oct 2019 14:45:25 +0000

Article URL: https://www.reversinghero.com

Comments URL: https://news.ycombinator.com/item?id=21355459

Points: 3

# Comments: 0

ReversingHero – Learn Reverse Engineering

xorpd — Thu, 26 Sep 2019 10:19:40 +0000

Article URL: https://www.reversinghero.com/

Comments URL: https://news.ycombinator.com/item?id=21079672

Points: 4

# Comments: 0

ReversingHero – Learn Reverse Engineering

xorpd — Sat, 14 Sep 2019 19:29:14 +0000

Article URL: https://www.reversinghero.com/

Comments URL: https://news.ycombinator.com/item?id=20973148

Points: 2

# Comments: 0

New comment by xorpd in "Ask HN: What are some examples of beautiful x86 assembly code?"

xorpd — Fri, 27 Apr 2018 21:42:34 +0000

Yes, I made the videos a few years ago. This video series is mostly for beginners as it goes pretty slowly.

The exercises are open source and can be found here: https://github.com/xorpd/asm_prog_ex I think that more experienced developers can take the instruction set and bash through the exercises.

Show HN: IDSearch – search IDA databases like a boss

xorpd — Thu, 03 Nov 2016 17:29:06 +0000

Article URL: https://github.com/xorpd/idsearch

Comments URL: https://news.ycombinator.com/item?id=12866028

Points: 3

# Comments: 0

Show HN: FCatalog: Find similarities between binary functions

xorpd — Thu, 22 Oct 2015 18:03:22 +0000

Article URL: http://fcatalog.xorpd.net

Comments URL: https://news.ycombinator.com/item?id=10433781

Points: 7

# Comments: 0

Show HN: FCatalog: Find similarities between binary functions

xorpd — Fri, 25 Sep 2015 10:41:04 +0000

Article URL: http://fcatalog.xorpd.net

Comments URL: https://news.ycombinator.com/item?id=10277320

Points: 7

# Comments: 0

Show HN: FCatalog: Find similarities between binary functions

xorpd — Thu, 24 Sep 2015 19:15:57 +0000

Article URL: http://fcatalog.xorpd.net

Comments URL: https://news.ycombinator.com/item?id=10273923

Points: 3

# Comments: 0

Assembly Language Adventures

xorpd — Thu, 02 Apr 2015 10:13:43 +0000

Article URL: https://www.wiziq.com/course/96323-assembly-language-adventures

Comments URL: https://news.ycombinator.com/item?id=9309684

Points: 1

# Comments: 0

0x40 Assembly Riddles

xorpd — Sat, 10 Jan 2015 13:19:31 +0000

Article URL: http://xchg.xorpd.net

Comments URL: https://news.ycombinator.com/item?id=8866697

Points: 50

# Comments: 8

New comment by xorpd in "Show HN: Assembly riddles"

xorpd — Wed, 10 Dec 2014 11:57:08 +0000

Hi. I made a collection of interesting bit tricks and techniques that I found over the last years. I put them into 0x40 assembly riddles, each one should teach you about one thing.

You could also get the hard copy for those snippets, though all of them are on the website.

How to use it? Get an assembler (Yasm or Nasm is recommended), and obtain the x86_64 instruction set. Then for every snippet, try to understand what it does. Try to run it with different inputs if you don't understand it in the beginning. Look up for instructions you don't fully know in the Instruction Sets PDF. Start from the beginning. The order has some meaning.

Enjoy, and send me your feedback.