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Protect process in delphi

Posted on 2011-03-04
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Last Modified: 2012-05-11
Hello experts.
Please help me with one thing.

i need to make a app that automaticaly encrypts,protects self process.
To understand me program be protected from Process Terminate, WriteProcessMemory or other.

But the principial is Process Terminate.
I know a method, but this requires a file (protectdriver.sys) who is localized as a rootkit.

Anybody help me to write this program.
Thanks.
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Question by:helyonprime96
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7 Comments
 
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Accepted Solution

by:
Geert Gruwez earned 2000 total points
ID: 35035037
run your program (created as a service) with an adminstrator user
only allow this user to start/stop the app

doing it from code is not possible
and tends to be looked at as a virus program

in the end,
you can kill any application by just pulling out the electric cord ...
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Author Comment

by:helyonprime96
ID: 35035077
and thats all?
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LVL 38

Expert Comment

by:Geert Gruwez
ID: 35035082
yes, this assumes within a company that you are a network admin
or the network admin is willing to do that for you ...

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Author Comment

by:helyonprime96
ID: 35035118
ok thanks
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Author Closing Comment

by:helyonprime96
ID: 35035121
youre master
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Author Comment

by:helyonprime96
ID: 35035122
for what is used functions VirualAlloc and Virtual Protect?
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LVL 38

Expert Comment

by:Geert Gruwez
ID: 35035512
VirtualAlloc:
http://msdn.microsoft.com/en-us/library/aa366887%28v=vs.85%29.aspx
in short reserving some memory in your app's virtual memory address space

VirtualProtect
http://msdn.microsoft.com/en-us/library/aa366898%28v=vs.85%29.aspx
for changing the protection on that memory area:
read/write/etc

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