padawan
February 23rd, 2004, 08:20
Hello,
I'm taking a look at an application protected with Asprotect 1.2/1.2c, looking for the OEP I used the trace function of OllyDbg setting a stop condition of EIP < 900000 just as described in two different tutorials by LaBBa (http://www.woodmann.net/forum/showthread.php?t=4958 and http://www.woodmann.net/forum/showthread.php?t=4614). But this trace stop condition DOES NOT work!! OllyDbg goes past the OEP (which is indeed < 900000) running forever. I repeated this step various times and then gave up thinking that asprotect must have some anti-tracing code.
But this explaination does not satisfy me especially considering that the specific version of asprotect isn't very recent.
Can anyone help me understand what is happening or can suggest how I could go investigating this behavior???
I already found the OEP, so I don't really need this step, still it disturbs me not to understand what is happening.
padawan
PS: I search the forum for someone reporting something like this must have come up with nothing.
I'm taking a look at an application protected with Asprotect 1.2/1.2c, looking for the OEP I used the trace function of OllyDbg setting a stop condition of EIP < 900000 just as described in two different tutorials by LaBBa (http://www.woodmann.net/forum/showthread.php?t=4958 and http://www.woodmann.net/forum/showthread.php?t=4614). But this trace stop condition DOES NOT work!! OllyDbg goes past the OEP (which is indeed < 900000) running forever. I repeated this step various times and then gave up thinking that asprotect must have some anti-tracing code.
But this explaination does not satisfy me especially considering that the specific version of asprotect isn't very recent.
Can anyone help me understand what is happening or can suggest how I could go investigating this behavior???
I already found the OEP, so I don't really need this step, still it disturbs me not to understand what is happening.
padawan
PS: I search the forum for someone reporting something like this must have come up with nothing.