Today helps the friend to look busily set of procedures, the procedure looks the discovery after has encrypted, as shown in Figure 1
After originally is one is called the ASP code encryption tool's procedure encryption result. Thereupon from-line has downloaded set of ASP code encryption tool v5.0, prepares to analyze. Procedure showing is quite scary, here we intercept the part explanation to be as follows, “ASP a code encryption tool whole world best section of ASP code encryption tool, she can protect your intellectual property rights completely, even if the code is downloaded, is also unable to explain the genuine sound code, perfect analysis processing, is absolutely you encrypts the ASP code only choice.”Saw these really is very afraid, felt that did not have what outlet, DLL will encrypt the function to seal, what if parsing algorithm words was really somewhat complex, but we also had the being loaf method, after the mentality will be the procedure is impossible to encrypt the data transfer to give IIS, must also probably undergo the seal after the DLL own decipher function transmitted again to IIS carries on the analysis, therefore we had a look to be able to find the related decipher function from DLL! Saw some in OD about DLL in the function information, but we had not seen the parameter the information, as shown in Figure 2.
From the naming rule and our individual intuition, we may guess correctly that the Decode() function should be the decipher function which we wanted, below I used COMRaider to have a look at the Decode() functional dependence parameter the explanation, as shown in Figure 3
Looks like the Decode() function to have a string of character the parameter! Below we carry on our test, the goal is for the source code which obtains us to want! Good! We write a section of ASP code, as follows:
After then the corresponding encryption's information will increase enterprising carries out again, might see the corresponding source code! As shown in Figure 4.
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