Author:
nuts9753

Language:
Unspecified/other

Upload:
3:16 AM 01/22/2024

Download

Platform
Multiplatform

Difficulty:
3.0

Quality:
3.0

Arch:
x86-64

Description

This crackme tries to emulate a game that asks the user for an activation key and sends a request to the server, and if the key is correct, the game starts this crackme contains two main parts: - traffic analysis (for example, you can use wireshark) - reverse engineering what happens after crackme starts: 1) it starts a local http server 2) asks the user for the activation key and sends it to the local server 3) if the key is correct, then the game starts 4) in the game, the user needs to use reverse engineering and find two codes when you download crackme, there'll be an archive with two executable files in the archive: for windows and for x86_64-linux. your goal is just to complete the crackme. good luck!

• Comments
• Solutions

cnathansmith on 8:56 PM 01/24/2024: Is the activation key supposed to be solvable given the port number? Both are determined by the data from the getrandom syscall, but then it's expanded with splitmix64 and further hashed to derive the port. I haven't analyzed how the key is calculated yet, but it's looking like there isn't a clear path to determining it. If there is, I'll keep working on it

nuts9753 on 8:13 AM 01/25/2024: Port isn't the activation key

nuts9753 on 8:18 AM 01/25/2024: port is random because a random port is harder to find

cnathansmith on 3:58 PM 01/29/2024: I forgot to mention the netstat regex in the keygen likely needs adjusted to match your system's formatting

Rooooook on 4:26 PM 02/12/2024: I have cracked to the "Enter the Codes" line, but I can't type anything, after 5 seconds the program exits

al4sk4nbu11w0rm on 9:21 PM 02/14/2024: Seeing a similar issue as @Rooooook. When running the binary on Windows, the program hangs after entering the activation key. On Linux, everything runs as expected

al4sk4nbu11w0rm on 11:36 PM 02/14/2024: disregard - that looks to be my error

sporta778 on 9:09 PM 02/20/2024: uhhh i like socket's, but in really commands's of crackmes.one what number of people's you have in your compund's? And what is your IQ....

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