Packet Encryption Algorithm

Hello to everyone, i want know if someone have the algorithm which pw uses for his packet encryption, if no, where i can find a tutorial of how to find that on the assembly code in ollydbg, i've been trying for weeks but i've not found nothing

Thanks, sorry for the english =X

It's RC4 with HMAC MD5 hash used as IV. Hashes are derived from random data, with HMAC component calculated from username + password hash.

Compression is in Server -> Client direction. They use modified MPPC with 8kb sliding history buffer.

if possible, you can give me a example of code how to unpack/decrypt the packets? or some source code of anykind of bot/hack etc.. who use that type of function, i have visited some russian forums and i saw some mentions to a source of Vorts in C++ which decrypt the packets, do you have that source?

Vort's POC bot doesn't work anymore on anything newer than 1.3.6. Why are you interested in it? Are you planning to release something?

the versions 1.2.6~1.3.6 are enough to me, its just for study/knowledge on mmo hacking, to write some simple programs nothing big, did you can help me with some piece of code, of the decrypt(RC4) & decompression(MPPC) ?

maybe this helps u abit:
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