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Trace back to find cause of termination

 
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spyware293
Newbie cheater
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Joined: 28 Jun 2012
Posts: 13

PostPosted: Sat Nov 12, 2016 9:34 am    Post subject: Trace back to find cause of termination Reply with quote

Im trying to make dual client. I've patched a mutex thread which allow multiple windows opened. The problem is when i tried to login, only first opened client can login. Other clients are just closed when i tried to login.

I don't have any string for a reference to look inside debugger. Where should i start looking? The closest thing i can reach is putting breakpoint on thread termination. I don't know how to trace back or step back with debugger.
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ulysse31
Master Cheater
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Joined: 19 Mar 2015
Posts: 324
Location: Paris

PostPosted: Sun Nov 13, 2016 5:54 am    Post subject: Reply with quote

Launcher gives the client the login ticket, sometimes through a middle man process, sometimes not. You'll need to login before you close the launcher, then reopen launcher with diff account, patch the mutex, launch game again and let the launcher give your client the login ticket.
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spyware293
Newbie cheater
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Joined: 28 Jun 2012
Posts: 13

PostPosted: Sun Nov 13, 2016 10:03 am    Post subject: Reply with quote

ulysse31 wrote:
Launcher gives the client the login ticket, sometimes through a middle man process, sometimes not. You'll need to login before you close the launcher, then reopen launcher with diff account, patch the mutex, launch game again and let the launcher give your client the login ticket.


The client don't have launcher. just plain exe and login inside the exe. Only the first opened client can login even if the second opened client login first it will terminated as soon as login successfull (Failed login because wrong password won't terminate the client).


Edit. solved by launching every client with different window name. I realized this after putting breakpoint on kernel32.findwindow
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