Latest solutions

Explained the two stages. Added the keygen code and the little Easter egg in the flagspace

2021-01-13 23:41

FuryFearless

Did not allowed spaces. So I've patched it in the stack

2021-01-13 01:17

keygenme - complex validation

unc4nny

The txt file contains the link to a step-by-step solution using second degree equation, on github.

2021-01-11 17:22

unlockme

hakman7047

Unlockme crackme solution Note: I'm using Intel disassembly flavor but the supplementary explanation should help anyways.

2021-01-11 16:49

2021-01-10 10:01

Good for beginners.

2021-01-10 08:42

crackme dady v2

Tools used: r2pipe; radare2; cutter 4 examples: 1 Manually reversing 2 Keygen: CPP and Python 1 Automation from memory with python

2021-01-10 04:02

thellurik by svenka

Drew

Keygen made in python

2021-01-08 21:07

Look Closer

bus@cu

Thanks

2021-01-07 23:15

crackme dady

Getting the password from memory using radare2. Keygen would not be possible as its random. But correct me if I'm wrong. Tools used: * radare2 * r2pipe

2021-01-07 05:48

crackme dady

venomR1

run this where crackme.exe path can be found.

2021-01-06 16:59

VERY EASY VERY SIMPLE C CODE

pranav

Easy and straightforward solution. Best for people to get started.

2021-01-06 13:49

VERY EASY VERY SIMPLE C CODE

odfrazier163

My first crackme solution!

2021-01-06 01:36

2021-01-03 21:21

Quite easy to solve

2021-01-03 11:05

2021-01-02 20:16

Here's my solution to the problem. It was nice.

2021-01-01 14:36

Crypt0 - Beginner CrackMe

noobi

My first try on crackme and first solution. :)

2020-12-31 10:24

j444 by josamont

Nice crackme for beginners, it's very easy but not so 'very'. Beginners can learn from it. (as from other crackmes ofcourse)

2020-12-30 22:08

j333 by josamont

difficult to debug with Evan's Debugger, it just don't let you to give some input. Also a surprise was that there aren't .text,.data,.rodata sections present. I have some homework to do now to know how I can do this.

2020-12-30 22:05

crackme dady

WHOAMI0X64

Hi, thanks for your challenge, keep creating more content for our community!

2020-12-29 22:04

VERY EASY VERY SIMPLE C CODE

Maze

Slek

Nice crackme! I really liked it. Thanks. Available online: github.com/Slek-Z/crackmes/tree/main/Maze

2020-12-29 17:43

2020-12-29 02:31

JakeyBoi

password123

2020-12-28 23:52

basic_logic by eholzbach

Not really very easy problem, impossible to guess the password without reading and interpreting the code (but that was the goal), Thanks to kaltwa55er I learned how to deal with the input problem and I found an error on my website thanks to this crackme.

2020-12-28 12:33

easy_linux_crackme by lord

full explanation with patching the (copy of) original binary file. No debugger needed. Nice usergroup id by the way (in hexadecimal it's a readable word)

2020-12-27 10:13

easy_crackme_2 by lord

Quite very easy as long as you can read and understand assembly language and knowledge of ASCII. I checked with a debugger.

2020-12-26 15:50

2020-12-26 15:38

crackme_nasm by rezk2ll

easy one, just assembly code reading

2020-12-26 15:15

crackme-not

cracked with objdump, reading assembly code and finally edb debugger. (sudo apt install edb-debugger should do the trick on Ubuntu like systems)

2020-12-26 14:31

Lucky Numbers

This is a quite long explanation of how I did it. Took a while because of the DAA instruction.

2020-12-25 15:14

nasm crack

Very easy one

2020-12-25 11:38

EZ crackme

hexdump -C run.exe reveales: 00002000 50 34 35 35 77 30 72 64 59 6f 75 20 47 6f 74 20 |P455w0rdYou Got | 00002010 54 68 69 73 21 0a 57 72 6f 6e 67 21 0a 1c 00 00 |This!.Wrong!....| most probably it must be P455w0rd using gdb (I've used Evan's Debugger so more easy) gdb ./run.exe set args P455w0rd run the response: You Got This! [Inferior 1 (process 27562) exited normally]

2020-12-25 10:45

keygenme1

NatanelSht

The password: 138581234 Flag: Nakerah{138581234} Thank you for a great crackme! (PS: I don't see how a keygen is useful here, there is only 1 correct password)

2020-12-23 20:40

glow wine [keygen practice]

antid0t3

short writeup with simple but inefficient keygen

2020-12-22 16:03

EZ crackme

dmfr

This is my first writeup.

2020-12-22 04:52

easy_reverse

toolb0x

thanks, it was funny

2020-12-21 12:16

Guess_my_name

toolb0x

This was my first crackme, thank you! :)

2020-12-21 10:10

2020-12-20 16:35

Fairly straightforward crackme. Good one for people looking to step up their skills from level 1 to level 2.

2020-12-20 13:03

lockcode

D4RKFL0W

Should've been a level 1 really. Thanks to the author though.

2020-12-20 07:51

2020-12-18 20:29

This is my first time uploading a solution, so hopefully this is enough information.

2020-12-18 19:34

Find the pass

Slizzz

This program compares the values of the specified and entered (converted) password. Password stored in the program "pcx|xpzlhgu}". The "hash" function here performs the offset using rand with the base value of srand(28). Turning this algorithm shifting the data in the other direction, we get the password "passwordeasy".

2020-12-18 17:34