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  #1  
Old 05-21-2004, 18:08
peter888
 
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problem on unpacking a telock 0.98 b1 packed dll

I am a newbie. I followed the tuts to manually unpack the dll(g.dll) with OD. I found the OEP and dumped the dll with LOADPE, and I took the IT/IAT to a partial dump file. Then I used winhex paste the IT/IAT to the dumped dll file.

It seemed the homework had been finished. But the dumped dll file can't be correctly loaded.

In attached files, g.zip is the zipped original packed dll, g_dump.zip is the zipped dumped dll. Would anybody can tell me where I did wrong?
Attached Files
File Type: zip g.zip (134.0 KB, 10 views)
File Type: zip g_dump.zip (127.0 KB, 6 views)
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  #2  
Old 05-21-2004, 20:30
MaRKuS-DJM's Avatar
MaRKuS-DJM MaRKuS-DJM is offline
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tried to unpack my self, my dump has the same problems as yours... seems pe-header isn't accessible. but i'm interested, how did you resolve imports? i used imprec

it seems the dump & IAT are valid, i attached my iat for checking. got it through a self-written resolver-function because imprec wasn't able to use the plugins

mybe problem of imagebase?

Last edited by MaRKuS-DJM; 05-21-2004 at 20:49.
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  #3  
Old 05-22-2004, 00:17
crusader
 
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did u change image base or fix relocation?
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  #4  
Old 05-24-2004, 02:30
evaluator
 
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dear MaRKuS-DJM & other unpackerz

maybe I already mentioned:
Please, don't resolve improts for such like packers, which keeps original ImportTable.
(aspack,telock,PECompact..)
using resolver on them indicates quite low level in unpacking..

instead debug & dump them, when unpacking in memory just finished;
then find original IT in dump & set new values in PE-header.
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  #5  
Old 05-24-2004, 18:13
evaluator
 
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look, while unpacking, i also run this dll.
nothing will bad with my PC?
Attached Files
File Type: zip gu.zip (124.9 KB, 13 views)
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  #6  
Old 05-25-2004, 10:07
peter888
 
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Quote:
Originally Posted by evaluator
look, while unpacking, i also run this dll.
nothing will bad with my PC?

Your file works fine. Would you please give me a tut about unpacking telock 98b1? Thank you in advance.
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  #7  
Old 05-25-2004, 21:04
evaluator
 
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easy steps i wrote at Don.Woodmann.net. JMI helps you.
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