totothetoro's alien

Author:
totothetoro

Language:
C/C++

Upload:
2019-09-10 21:32

Download

Platform:
Unix/linux etc.

Difficulty:
2.0

Quality:
4.0

Arch:
x86-64

Downloads:
15

Writeups:
2

Comments:
8

Description

In the ruins of an ancient alien civilization a micro sd card was found with this binary inside. It's asking us to feed it a password, but we don't know where to get it from! We've tried all of our birthdays right way and backwards here at the lab, but nothing seems to work :( Maybe we missed something.

Comments (8)
Writeups (2)

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SYS_V on 2019-09-29 09:41: It would be more appropriate to say this is a level 1 crackme, not level 2.

rootabeta on 2019-10-20 00:13: Very easy - I agree with @SYS_V in that it feels more like a level one. I was able to crack this just by running ltrace.

adalovegirls on 2019-10-30 03:54: Love the flavor text! It's cute :)

logerse on 2019-11-06 06:01: Hey! I don't understand how it program works. May you send source-code on email?

ski on 2019-11-12 18:58: nice one. solved it using ltrace.but using IDA pro one needs to understand the control flow

cipherhater on 2019-11-14 11:40: Hi, $ ./alien_bin Feed me the right password: 435345345345345 blip blop :) $ ./alien_bin Feed me the right password: 000000000000 blip blop :) --- @@ -1652,7 +1652,8 @@ 2276: 48 89 c7 mov %rax,%rdi 2279: e8 e2 fd ff ff callq 2060 (0x2060) 227e: 85 c0 test %eax,%eax - 2280: 75 0c jne 228e (0x228e) + 2280: 90 nop + 2281: 90 nop 2282: b8 00 00 00 00 mov $0x0,%eax 2287: e8 29 00 00 00 callq 22b5 (0x22b5) 228c: eb 0c jmp 229a (0x229a) --- ))) Best regards

yuvaly0 on 2020-01-18 13:54: ez

jimsktsmith on 2022-02-06 13:45: [Click to reveal]

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Solution by ThatGuy on 2019-09-18 20:29:

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Solution by D4RKFL0W on 2019-11-16 15:46:
Should be a level 1 really.

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crackmes.one

crackmes.one

totothetoro's alien_bin