Share how awesome the crack me was or where you struggle to finish it! Stay polite and do not spoil the solution/flag!
6:53 PM 04/18/2023
A crackme for beginners. Get yourself a keyfile or even better create a keyfilemaker. Enjoy!
MARI0x83 on 10:27 AM 04/20/2023: Does not launch for some reason
timotei_ on 6:23 AM 04/21/2023: @MARI0x83 Correct, it won't start without a valid keyfile :-)
Tyfo on 8:56 AM 05/24/2023: Little spoiler: this program checks the checksum of a file with a certain name. The length of the file must be equal to a certain value, and the content must fit the checksum check (which is equal to the last character). So there are many solutions to this problem. An interesting problem with many solutions. For example, a file with the following content (as hex!): 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 FF 02