LAG's crack me test

Author:
LAG

Language:
C/C++

Upload:
2025-09-16 05:31

Download

Platform:
Windows

Difficulty:
2.0

Quality:
3.5

Arch:
x86-64

Downloads:
42

Size:
58.00 KB

Writeups:
0

Comments:
11

Description

this is a file I've worked on for a couple of hours i'm just wanting to see how well my security is I couldn't crack it myself so if you guys can good job and I've probably done a really bad job but just wonder if anybody could do it it should be pretty hard but I could be wrong it's just a simple password thing you have to put the password in and if you get it right it sounds good

Comments (11)
Writeups (0)

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nightxyz on 2025-09-17 13:20: Too easy. It took 10 minutes.

LAG on 2025-09-17 20:17: how exactly did you do it so I can improve

trendcrusher on 2025-09-17 23:01: Gh0st_Hunt... You know next)

nightxyz on 2025-09-18 09:13: After started main function, second call is anti-debug (inside this call, there is a comment about anti-debug) and after return from this call, you check AL register. I set it so i bypassed it. Then, after getting password from user (randomly entered from me) there is a call which constructs password. I stepped every instruction and password started to become visible in comment section of X64DBG program. RAX register points that password address. End of the function, constructed password is placed [RBP-40] address. You should disable debug information. In anti-debug section, you could set a global variable and could use inside password construction function. So bypassing anti-debug function could change the results.

LAG on 2025-09-18 15:32: nightxyz thank you so much for your reply I appreciate it thanks for the useful tips as well i'm going to upload a new one soon

h0td04ek on 2025-09-23 18:16: [Click to reveal]

desynctime on 2025-09-24 13:21: it took me easily 2 minutes just patch it : 0000000140006502 jz loc_14000659E to 0000000140006502 jnz loc_14000659E (Im newbie at crackmes, and I don't know if the patch is allowed or not)

drkapuzuke on 2025-10-01 15:05: I cracked it, patched all the anti-debuggers, and extracted the password — it didn’t take me long

PL45M4 on 2025-10-02 22:04: I enjoyed it. Here's a blog I wrote on it: https://bobbyhillreverseengineering.blogspot.com/2025/10/lags-crack-me-test.html

MarcusHindey on 2025-11-10 20:54: [Click to reveal]

esone on 2025-11-27 18:27: [Click to reveal]

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crackmes.one

crackmes.one

LAG's crack me test