Cheat Engine

[souleaper]

I am trying to decrypt this login packet.

The username is encrypted xor/aes or something, but i just couldn't figure it out what method it is used to encode/encrypt

for username 137887 and password is 111111

6B DB 8D 9E 00 85 9D 9F B4 7A 98 9F AE AE AE AE AE AE
(This is the WPE packet send to login server)

for username 137954 and password is 111111

6B DB 8D 9E 7D 85 9D 9F EF 7A 98 9F AE AE AE AE AE AE
(This is the WPE packet send to login server)

for username JZ194198 and password is 111111
6B DB 8D 9E 09 69 9D 9F BB A6 97 9F AE AE AE AE AE AE

it seems both login difference is 5th byte and 9th bytes.

the password is quite simple.

I managed to pull out this from cheat engine

00B7D099 - 8B 36 - mov esi,[esi]
00B7D09B - 8B 00 - mov eax,[eax]
00B7D09D - 89 30 - mov [eax],esi <<
00B7D09F - BE 00020000 - mov esi,00000200
00B7D0A4 - 81 F6 FFFFFF7F - xor esi,7FFFFFFF

it seems the username maybe xor with 7FFFFFFF

Thanks