How hackers crack software // Reverse engineering a program and writing a keygen for it

In this video, we're gonna be taking about what's reverse engineering and how to reverse engineer. We'll also talk about disassemblers and decompilers and how they work, and we'll be reversing a crackme from scratch. We'll see how can we patch executables using disassemblers like ida and binary ninja. Also we will be using ida decompiler to reverse engineer the whole key-checking algorithm and then we will write a keygen for it.

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00:00 Intro
00:11 What is reverse engineering
01:01 How reverse engineering works
01:33 How executables work
03:31 Reversing a program
05:10 Patching the program using binary ninja
06:51 Reversing the key checking algorithm with ida decompiler
10:25 Writing the keygen in python
11:45 Reverse engineering on linux based systems
13:31 Outro

[dev__]

The best channell ive ever found till now. Please be consistent. Love your videos

[tech_savy]

This video is pure gold 👌. I would love to see this turned into a series. You earned yourself a sub ☺️

[berthold]

🎉tu mérites plus d'abonnés bro

😅mais le reverse engineering c'est un autre niveau

[heisenberg]

You are so smart. Greetings from germany

[delonmeau]

Thank you for the great video showing both the easy bypass and the harder keygen. I do have a question, why most cracks for real programs have both a patched file and a keygen?

[موسى-مهدي]

Hi I tried to reverse engineering on Auto Mouse click by murgee and I found it very challenging and I failed so I hope you can make a video where you do a reverse engineering on it since it will be very educational cuz it have a lot of challenges

[edwardmacnab]

so the strings command is a plain old linux command in the shell

[mukeshsharma]

kindly make a video on Server-Side Validation software cracking witch is asking
licenses, users, name/connections, Email addresses, and more thanks in advance.

[mizudatsuraku]

As always very good and informative video. Can you also make a video about binary exploitation? I’m really interested about it but can’t seem to find any good guide or introduction about it. Thanks

[RobertoSantos-neus]

Is it OK to make a keygen for Avast Premium Security antivirus? Could you make a tutorial showing how to do it?

[xtearsul]

Please can you help me with one key for one software wich i will give you ?

[DEADCODE_]

How old are you and how you learn like this did you play some ctfs

[Alexmotor_performance]

Can you crack software license HWID sir.. please your phone

[theonewhowas]

yea its all fun an all till the executable is highly encrypted... just makes you want to give up life LOL