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Re: Re: Decompile PerlApp

by Muzzii (Initiate)
on Jan 31, 2003 at 16:10 UTC ( [id://231650]=note: print w/replies, xml ) Need Help??


in reply to Re: Decompile PerlApp
in thread Decompile PerlApp

The liscencing issue was covered in another post in regards to the previous link i posted and it was determined that the EULA or applicable federal laws did not apply to a person decompiling a perlapp program for the sole purpose of recovering a program legitamtly written by that person. I am not trying to pirate or steal anything here, i am merely wanting to recover my own intellectual property.

The total encoded file would be to big to post here, but i would be happy to email any information to anyone who would help.

Here is the first 100 lines of the encoded program:

73,76,28,16,28,12,71,89,84,2, 253,69,94,94,85,68,99,46,14,25, 8,24,1,54,6,79,17,29,69,118, 101,76,79,3,96,76,81,83,13,96, 76,83,90,81,74,68,75,87,3,138, 3,17,19,19,19,3,98,64,87,74, 85,70,112,87,66,87,70,3,119,76, 76,79,3,96,76,81,83,13,96,76, 83,90,81,74,109,75,87,0,137,116, 90,89,67,16,102,40,15,17,73,23, 11,55,84,0,24,9,0,50,6,3, 9,83,99,11,23,6,75,47,0,0, 28,22,73,1,7,6,0,253,69,94, 94,85,68,0,97,67,87,74,124,70, 112,84,65,84,69,0,116,79,79,76, 0,0,0,31,29,79,45,11,21,11, 82,8,21,13,84,84,193,69,18,89, 94,68,69,45,15,17,10,2,16,50, 24,65,84,69,0,116,79,79,76,0, 96,76,120,83,13,99,79,80,89,82, 73,71,72,84,112,219,79,66,85,66, 68,89,97,12,18,73,36,10,49,17, 19,0,69,104,122,79,43,13,86,42, 28,82,57,103,99,79,80,89,82,73, 71,72,84,0,138,3,56,19,19,16, 0,97,67,84,73,86,69,115,84,65, 84,69,0,116,43,14,24,69,121,79, 56,5,64,38,79,66,78,94,73,85, 88,68,17,137,0,18,16,16,16,0, 97,67,84,73,86,69,115,84,66,87, 111,3,119,79,79,76,0,22,1,19, 5,90,43,0,2,16,8,12,3,72, 1,83,204,0,93,86,16,68,72,40, 16,84,10,25,1,54,84,8,7,69, 83,32,29,6,15,75,47,22,82,80, 14,99,76,83,115,81,74,71,72,84, 0,207,79,64,82,89,84,68,36,13, 84,30,31,17,59,27,20,0,69,84, 60,10,79,9,88,51,3,27,19,71, 55,79,0,28,0,4,14,27,7,73, 198,78,18,16,16,16,3,98,105,87, 74,86,69,115,84,65,84,69,79,50, 79,27,4,69,99,14,20,31,92,38, 79,29,28,28,29,14,7,26,0,192, 78,70,85,92,92,69,34,23,1,8, 26,69,115,84,65,84,69,0,116,79, 76,79,42,96,76,82,80,14,99,79, 80,89,82,73,71,72,84,0,137,0, 18,16,16,64,82,46,19,17,27,2, 28,115,27,22,26,0,82,122,79,79, 76,0,99,79,82,80,14,99,79,80, 89,82,73,71,75,87,42,138,3,18, 16,16,16,0,97,67,84,73,86,69, 115,32,4,24,11,69,32,79,44,3, 77,46,14,28,20,75,49,79,38,89, 64,71,87,70,71,0,137,0,18,16, 16,16,0,97,67,84,73,86,70,112, 126,66,87,70,3,119,76,76,79,3, 96,76,81,83,13,96,76,83,90,81, 74,68,75,87,3,138,3,17,19,19, 19,3,98,64,87,74,85,70,112,87, 66,87,70,3,119,76,76,79,3,96, 76,81,83,13,73,101,83,93,2,8, 21,9,25,83,242,16,111,16,13,16, 114,32,13,16,6,27,69,18,23,2, 17,22,83,116,57,14,30,73,34,13, 30,21,36,96,75,0,24,0,8,10, 27,47,17,244,0,15,16,89,94,73, 97,5,29,5,19,69,61,21,12,17, 111,3,112,31,14,30,65,46,28,41, 66,115,99,82,80,10,23,5,2,11, 0,69,205,0,80,89,68,93,65,49, 67,26,8,27,0,89,87,69,4,4, 82,53,2,28,55,19,30,79,79,80, 91,45,28,21,21,23,10,19,13,16, 0,203,73,70,93,81,64,0,47,2, 25,12,124,70,119,4,0,6,4,77, 39,52,91,49,0,126,79,2,2,65, 36,29,17,20,82,0,4,7,26,0, 199,65,95,85,58,19,4,49,2,6, 8,27,22,8,65,60,84,88,0,36, 29,0,11,82,34,2,82,19,91,48, 0,2,89,28,8,10,13,126,3,141, 80,83,66,81,93,83,26,85,41,73, 75,69,32,0,0,6,17,0,57,6, 1,5,77,42,21,23,20,14,37,3, 17,30,82,6,9,71,27,70,207,0, 3,31,0,58,3,101,19,21,27,23, 8,32,47,86,41,69,29,116,0,31, 24,73,44,1,1,80,93,38,12,4, 16,29,7,71,6,21,77,204,42,17, 20,64,81,82,32,14,7,50,78,56, 115,73,65,16,0,86,61,12,10,31, 0,48,10,17,4,71,44,1,80,23, 19,4,2,98,87,4,217,65,64,81, 93,67,123,120,62,84,84,86,55,50, 26,5,27,8,0,21,12,12,9,83, 48,79,36,17,92,42,14,18,21,23, 99,68,76,4,65,219,65,95,67,107, 1,16,28,67,73,73,36,4,61,16,

Here is a 'control file that i made. The control file consists of:

#!"#$%&'()*+,-./0123456789:;<=>?@ #ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_` #abcdefghijklmnopqrstuvwxyz{|}~ #!"#$%&'()*+,-./0123456789:;<=>?@ #ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_` #abcdefghijklmnopqrstuvwxyz{|}~ #!"#$%&'()*+,-./0123456789:;<=>?@ #ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_` #abcdefghijklmnopqrstuvwxyz{|}~ print "Show me the encoding!\n";

I looked at this code before running it through PerlApp and it looks like this:

35,33,34,35,36,37,38,39,40,41, 42,43,44,45,46,47,48,49,50,51, 52,53,54,55,56,57,58,59,60,61, 62,63,64,13,10,35,65,66,67,68, 69,70,71,72,73,74,75,76,77,78, 79,80,81,82,83,84,85,86,87,88, 89,90,91,92,93,94,95,96,13,10, 35,97,98,99,100,101,102,103,104,105, 106,107,108,109,110,111,112,113,114,115, 116,117,118,119,120,121,122,123,124,125, 126,13,10,35,33,34,35,36,37,38, 39,40,41,42,43,44,45,46,47,48, 49,50,51,52,53,54,55,56,57,58, 59,60,61,62,63,64,13,10,35,65, 66,67,68,69,70,71,72,73,74,75, 76,77,78,79,80,81,82,83,84,85, 86,87,88,89,90,91,92,93,94,95, 96,13,10,35,97,98,99,100,101,102, 103,104,105,106,107,108,109,110,111,112, 113,114,115,116,117,118,119,120,121,122, 123,124,125,126,13,10,35,33,34,35, 36,37,38,39,40,41,42,43,44,45, 46,47,48,49,50,51,52,53,54,55, 56,57,58,59,60,61,62,63,64,13, 10,35,65,66,67,68,69,70,71,72, 73,74,75,76,77,78,79,80,81,82, 83,84,85,86,87,88,89,90,91,92, 93,94,95,96,13,10,35,97,98,99, 100,101,102,103,104,105,106,107,108,109, 110,111,112,113,114,115,116,117,118,119, 120,121,122,123,124,125,126,13,10,112, 114,105,110,116,32,34,83,104,111,119, 32,109,101,32,116,104,101,32,101,110, 99,111,100,105,110,103,33,92,110,34, 59,13,10, Count 343

Then i ran this 'control' file through perlapp and extracted the encoded script out of it and it looks like this:

73,76,28,16,28,12,71,89,84,2, 202,79,92,68,66,95,76,111,6,12, 12,84,111,112,85,67,87,65,5,114, 72,71,69,10,104,67,95,94,1,115, 94,66,74,70,92,81,95,76,25,147, 27,14,13,14,15,96,75,64,53,43, 53,33,22,50,38,60,44,106,31,35, 34,34,111,19,62,32,35,122,22,57, 39,33,43,51,60,52,41,126,246,64, 56,19,81,82,67,37,6,18,14,30, 12,57,31,13,25,11,79,36,30,29, 31,84,54,25,5,8,87,57,20,12, 4,12,99,68,73,86,3,141,5,20, 23,24,25,10,106,79,89,71,89,85, 98,70,82,64,80,22,99,87,86,86, 27,127,82,76,79,110,73,76,49,59, 49,45,34,46,51,104,224,106,121,124, 125,126,111,17,50,38,58,34,48,5, 35,57,45,63,123,8,50,49,51,64, 73,76,19,18,77,39,10,22,30,26, 0,13,3,24,77,199,79,66,65,66, 67,84,52,21,3,17,15,31,40,8, 28,10,111,3,117,77,76,72,5,101, 72,90,89,4,104,67,93,87,93,89, 86,90,71,20,156,22,5,8,9,10, 27,125,94,74,86,54,111,112,53,35, 55,33,101,18,40,39,37,106,8,35, 63,62,97,19,62,34,42,38,60,49, 63,44,121,243,123,110,109,110,111,64, 75,64,21,11,21,1,54,18,6,28, 12,74,63,3,2,2,79,51,30,0, 3,90,54,25,7,1,11,19,28,20, 9,94,163,80,64,89,94,68,0,99, 48,28,6,1,69,62,17,65,0,13, 69,116,10,1,15,79,39,6,28,23, 15,31,1,82,66,120, Count 356

As you can see there is a 343:356 ratio to this file. It does not seem to be merely a XOR operation against the string "Copyright © 2000 ActiveState Tool Corp." witch is:

67,111,112,121,114,105,103,104,116,32,169,32,50,48,48,48,32,65,99,116, +105,118,101,83,116,97,116,101,32,84,111,111,108,32,67,111,114,112,46

This is about as much as i have now, i can also post a encode and unencoded snippit of another 'control' file that contains just a repeating string '#A'. If anyone can help, it would deeply appreciated.

Many Thanks

Muzzii

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