It is a classical source code of a remote trojan, you can download it and have a try if you have interest in trojan.

Packet : 975624uo远程木马源码.rar filelist
KeyScan.~pas
KeyScan.dcu
KeyScan.pas
Proc.~pas
Proc.dcu
Proc.pas
readme.txt
UoHook.~dpr
UoHook.cfg
UoHook.dll
UoHook.dof
UoHook.dpr
UoSpy.~dpr
UoSpy.cfg
UoSpy.dof
UoSpy.dpr
UoSpy.exe
UoSpy.res
Win.~pas
Win.dcu
Win.pas
南域剑盟98ExE.Com.htm

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