Guys i have a algorithm code to unpack a unusual file [Evp]... but now days it seem all... nah most of all have this code.. and i don't know how to protect my work.. is there anyone.. who can make adjustment in the coding so that it works like old same compression method but old code cant reverse that file made with new one by old code.
# Sk online # incomplete script, no support for compressed files! # script for QuickBMS http://quickbms.aluigi.org
get DUMMY string get NAMESZ long getdstring NAME NAMESZ get DUMMY long get OFFSET long get SIZE long get FILES long goto OFFSET
get NAMESZ long getdstring NAME NAMESZ get DUMMY long get DUMMY long get DUMMY long
for i = 0 < FILES get NAMESZ long getdstring NAME NAMESZ get OFFSET long get ZSIZE long get SIZE long get FLAG long get DUMMY long get DUMMY long getdstring DUMMY 0x10
# flag 1 are ok # flag 6 files have 0x80 bytes obfuscated (I guess a simple algorithm) # the others are usually compressed with an unknown algorithm
if ZSIZE == SIZE log NAME OFFSET SIZE else set EXT extension NAME strlen TMP EXT string NAME -= TMP string NAME -= 1 string NAME += "_compressed_" string NAME += SIZE string NAME += "." string NAME += EXT log NAME OFFSET ZSIZE # unknown compression algorithm #clog NAME OFFSET ZSIZE SIZE endif next i
That one is my work-in-progress script for TZ Online. Do you have the compression algorithm?
The script is old so it's highly possible that now the compression is already embedded in quickbms but I don't have the archives to test, anyway the code is appreciated for my collection.
Regarding your question, you are limited by the format used by the game and how it's implemented by the game itself. It means that if the game has a field (like a flag, for example FLAG equal to 6) that allows to obfuscate a part of the file, you can use it, but at the same time anyone can reverse engineer the file format and implement the obfuscation. So, in short, doesn't exist a real way except if you modify also the executable of the game or use dll injection to modify some of its parts. But still it's something that can be reverse-engineered.
yea.. i can compress and decompress.... but i only want to protect my works.. i spend hours.. and someone copy and get better advantage than me.. it S##ks. i earn 0$ from tht but i payed a lot for host and the webpage.. now i stopped... more i work others get more and more... yea, im a noob... i dont want earnin.. i want others to like my game.. and my work.. i have 2 types of evp files... 1. can decompress with ur code... other u cant... yea.. editing dll a bit might work.. but.. idk... tnx anyways no need.. no more codes.. 1. quickbms have revers feature.. but beta and there is a both way exe.. to convert i want a bit different one.. so to protect my work
i want a bit different one.. so to protect my work