downloadbrowseHMX0101's DecryptMe #1

Download Decryptme#1.zip, 12 kb (password: crackmes.de)
Browse contents of Decryptme#1.zip

======================
HMX0101's DecryptMe #1
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This is my new crackme with a
simple xor encrypted message.


To beat this crackme, you need:

- Analyze the algo
- Reverse the algo
- Decrypt the goodboy message.
- Write a tutorial

Rules:

- Patching is not allowed.

==========
Greets to:
==========

Linden, _khAttAm_, l0calh0st, Ox87k, Ank83, TWiST, dila, moofy, ScR1pT_,
KLiZMA, Kerberos, R.E.M, CracksLatinos, and all members in crackmes.de

===============
Regards,
HMX0101 / R.E.M
===============

Difficulty: 1 - Very easy, for newbies
Platform: Windows 2000/XP only
Language: Unspecified/other

Published: 20. Apr, 2006
Downloads: 1032

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Solutions

Solution by baderj, published 18. nov, 2014; download (97 kb), password: crackmes.de or browse.

baderj has not rated this crackme yet.

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Discussion and comments

Jailani
13. May 2006
Is this patched
Jailani
13. May 2006
sorry i mean packed
HMX0101
Author
13. May 2006
only that you need to solve is reverse the algo and test many keys...
indomit
15. May 2006
Hm... I test many keys, but better mgs was:
Well''Done''࿈''Congratulations''''''
for keys:
276798
452798
and others...
HMX0101
Author
15. May 2006
The correct key can decrypt the message correctly...
Zaphod
20. May 2006
55678, 455678, 24455678 and others generate "Well done!, Congratulations!!!" , but I can't say I have solved the crackme :(
HMX0101
Author
20. May 2006
@Zaphod:
Exists more than a key to decrypt the message!
If you can, write the solution :D
Zaphod
21. May 2006
I'm not sure I understand - do you mean that the message isn't just "Well done!, Congratulations!!!", there is more?
Ox87k
21. May 2006
is maybe "Well done!! Congratulations!!!"?
HMX0101
Author
21. May 2006
@Zaphod and Ox87k:
The message is "Well done!!, Congratulations!!!", but you can decrypt it with different keys.
Jailani
23. May 2006
No HMX the msg is "Well done!, Congratulations!!!" not what u said becuz the length of the msg always generated is 30 u know what i mean. The programme defines the length of the string before putting it on to the memory if i am not wrong :D I am onto it...
indomit
24. May 2006
HMX0101, look at this plz:
http://rapidshare.de/files/21244087/msgwindow.png.html
I see that for all keys showed by Zaphod.
It is bug? or what?
HMX0101
Author
25. May 2006
the program only works with english and spanish (my ssytem) character set.
AssemblyJammer69
15. Jul 2012
Easy one, here is a working key:126, the rest of the keys are increments of 128 using 126 as the starting number.

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