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Control Sum Checkup always fails after a few seconds

Posted: Tue Apr 22, 2014 12:23 pm
by 191
Hello everyone,

I just got another problem with Enigma Protector 4.10.


It seems like the control sum checkup fails always after about 8 seconds.

The only change i make during runtime is deleting the module from the LIST_ENTRY32's ( to hide the module ) and I delete the DOS header.

It does not matter which options I check, as soon as I check "Use control sum checkup" this problem appears.

Re: Control Sum Checkup always fails after a few seconds

Posted: Tue Apr 22, 2014 2:59 pm
by Enigma
Yes, Enigma Protector does check the dos header too, it should not be manually deleted.

Btw, what is the purpose to delete dos header?

If you delete it to increase the strength of protection somehow, then it is absolutely wrong way to do.

Re: Control Sum Checkup always fails after a few seconds

Posted: Tue Apr 22, 2014 8:18 pm
by 191
There's a bug in ollydbg which prevents ollydbg from jumping to the module entry if the dosheader is corrupt.

Re: Control Sum Checkup always fails after a few seconds

Posted: Wed Apr 23, 2014 5:36 am
by Alec
If there is a bug in olly then there is a plugin that fixes it, there is no need in performing security thrue obscurity.