1,
2. If you are not registered, you are prompted to use the trial version. You must register the trial version to become the official version.
3. After analysis, it is found that the software has complete functions. Find the software that reads the machine code: zc.exe. The interface is as follows:
The specific procedure of program registration is clarified first through the zc.exe‑system ID. Then, the System ID of the author calculates the registration code, and zc.exe fills in the calculated registration code and saves it directly to the SQL database.
When the main program mrmf.exe is enabled, it first uses its System ID to obtain the registration code entered by ZC. EXE from the database. If the registration code is correct, the registration is successful and no longer prompts the trial version.
4. After learning about the registration process of the system, focus on the algorithm process:
1. Obtain the hard disk ID through DeviceIoCtrol.
2. Obtain the hard disk ID string in two simple order.
3. perform operations on the obtained string and a fixed key value.
4. After the calculation is encrypted with md5, It is the registration code.
5. Based on the above procedures and ideas, you can directly extract the code to write the registration server, which can achieve perfect Code cracking.
From the column zhw309