Exetools - Anyone know this:Quick License Manager

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Elickson

11-13-2010 12:01

Anyone know this:Quick License Manager

Does anyone know this software -- Quick License Manager?
http://www.interactive-studios.net/Products/QuickLicenseManager.aspx

I can't find anything on the web of R.E.:(

ChupaChu

11-13-2010 21:21

try looking into IsLicense50.dll

Code:

10051F17   .  E8 4CEFFFFF   CALL    <is eval?>

10051F1C   .  84C0          TEST    AL, AL

10051F1E   .  0F85 C9000000 JNZ     10051FED

10051F24   .  68 44950910   PUSH    10099544                         ;  ASCII "Detected eval version of QLM"

..might be possible to turn this eval into a real thing by few byte patches
and protected programs wont be affected by eval notices..

havent really had time to look deeper.. just d/L'd it and runned through olly for a quick view :)

CU!

Elickson

11-14-2010 11:17

Thanks for your help.
QLM is a LM based on the feature control. So one byte patch might not do the job.
My target app is compiled in x64 mode, but I don't have a x64 debugger.

CU!

ChupaChu

11-28-2010 03:53

yea one byte patch wont work, i think if this becomes common licensing tool.. it will be cracked quickly.. its all pretty strait forward, one just needs time and patience, imho..

Elickson

11-30-2010 16:43

Aha, there is no one byte patch, but a 6-byte 90 will extend eval period forever. :)

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