How to change protocol revision reported? [Archive]

B666

28-01-2009, 19:17

Hello. Is it possible and maybe any1 of you know how to change reported to server game client protocol revision? I'm working on an antibot software and need to change protocol revision that is going to be reported to a server for its to fully work (basically i wan't to change revision number, to make sure that players are connecting with server with patched with antibot game client).

Plz help any1? Any hints?

mexmer

29-01-2009, 18:18

Hello. Is it possible and maybe any1 of you know how to change reported to server game client protocol revision? I'm working on an antibot software and need to change protocol revision that is going to be reported to a server for its to fully work (basically i wan't to change revision number, to make sure that players are connecting with server with patched with antibot game client).

Plz help any1? Any hints?
you need to "patch" client version packet.

anyway, this is not the right type of protection.

for OOG walker - packet will be sniffed, moded OOG client will be released
for IG walker - it doesn't care about version packet, it starts working after you log into game (eg. after initial communication)

mfyyre

04-02-2009, 03:56

The easiest way is to hex edit engine.dll - search for the string: $Revision - then modify it.

like Mexmer said - this is not a protection method, and will be easily bypassed.

-Fyyre

benurb

10-02-2009, 08:30

The easiest way is to hex edit engine.dll - search for the string: $Revision - then modify it.

like Mexmer said - this is not a protection method, and will be easily bypassed.

-Fyyre

i think you mean l2.exe? engine.dll has no $Revision (at least mine doesn't :D)
but l2.exe has
$Revision: 12

B666

25-02-2010, 15:26

I know that if you only change rev, that will not stop bots. But I've needed that for my antibot. Thx for your help anyway. I've made that antibot without changing rev. It evolved pretty nice, and currently new version I work on, detects all most popular bots in 90%, during first 10 minutes of bot being logged on server. I'm undigging rev subject, cause I have an idea to improve detection to maybe even 100%, and for that I'm gonna need to change rev :)