How would you reverse engineer this?

Question

I\'ve got some code that was at the bottom of a php file that is in javascript. It goes through lots of weird contortions like converting hex to ascii then doing regex replacem

Answer 1

I know its not the answer, but usually(where ive seen this kinda stuff), they are placed so if that line isnt executed, all the script stops. Why do they do that? Well coz they are printing their copyright on the script(or more usually a template).

When people goes to all that trouble for you to give recognition is because they do have a remove copyright licence, i would recommend paying for it, since even if you "reverse engineer" that, they can(and have) other ways to check if your license is true. (some of those softwares will actually send some kind of message if you are doing that).

But, before i get any kind of flame, i agree its interesting to go back in this kind of securities and get the original code and break it =)