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- Path: sparky!uunet!wupost!spool.mu.edu!enterpoop.mit.edu!eru.mt.luth.se!kth.se!dront.nada.kth.se!d88-jwa
- From: d88-jwa@dront.nada.kth.se (Jon Wtte)
- Newsgroups: comp.os.ms-windows.programmer.misc
- Subject: Re: modifying a variable in a Windows .EXE without re-linking???
- Message-ID: <1993Jan4.160418.19426@kth.se>
- Date: 4 Jan 93 16:04:18 GMT
- References: <1993Jan3.205027.28520@emr1.emr.ca>
- Sender: usenet@kth.se (Usenet)
- Organization: Royal Institute of Technology, Stockholm, Sweden
- Lines: 22
- Nntp-Posting-Host: dront.nada.kth.se
-
- In <1993Jan3.205027.28520@emr1.emr.ca> jagrant@emr1.emr.ca (John Grant) writes:
-
- >position of a variable in the .EXE, knowing the offset etc into
- >a segment like DGROUP. I'm using Borland C++ 3.1.
-
- Ah, but as soon as someone sees what you're doing (in a debugger)
- he can do it himself; that copy protection would break in three
- seconds blank.
-
- A _slightly_ better approach would be to encrypt various (code)
- parts of the .EXE with, say, a CRC taken of the data set AND the
- variable, as key.
-
- Cheers,
-
- / h+
-
- --
- -- Jon W{tte, h+@nada.kth.se, Mac Hacker Deluxe --
- "You NEVER hide the menu bar. You might go about and change the color
- of it to the background color, but you never HIDE the menu bar."
- -- Tog
-