#!/usr/bin/php
/*
* this script find some shell like
* c99, c100, r57, erne, Safe_Over
* and try to find some of unknow shell searching specific words this can be
* not safe
*
* how to use:
* the script don't need no-one of these parameter thay are facoltative
* -e Y/N enable disable eusristic mode (default is enable)
* -p a number 1-100 , it's the percentual of word that must be find into the file to warm the euristic mode
* -f check a single file
* -d check a single dir (normaly the program is recursive chek ALL file )
* powered by Dr. nefasto
*/
$euristic__ = array("fopen", "file(", "file_get_contents", "sql", "opendir", "perms",
"port", "eval", "system", "exec", "rename", "copy", "delete", "hack", "(\$_", "phpinfo",
"uname", "glob", "is_writable", "is_readable", "get_magic_quotes_gpc()",
"move_uploaded_file", "\$dir", "& 00", "get");
$word__ = array(
"c99" => array("c999shexit();", "setcookie(\"c999sh_surl\");", "c999_buff_prepare();"),
"c100" => array("\$back_connect_c=\"f0VMRgEBAQA", "function myshellexec(\$command) {", "tEY87ExcilDfgAMhwqM74s6o"),
"r57" => array("if(strpos(ex(\"echo abcr57\"),\"r57\")!=3)", "function ex(\$cfe)", "\$port_bind_bd_c=\"I2luY2x1ZGUg"),
"erne"=> array("function unix2DosTime(\$unixtime = 0)", "eh(\$errno, \$er", "\$mtime=@date(\"Y-m-d H:i:s\",@filemti"),
"Safe_Over" => array("function walkArray(\$array){", "function printpagelink(\$a, \$b, \$link = \"\")", "if (\$cmd != \"downl\")"),
"cmd_asp" => array(" ' -- Read th", "ll oFileSys.D", "Author: blackc0de crew")
);
//the script work
$euristic_active = true;
$euristic_sens = 40;
for ($i = 1; $i < $argc; $i++)
{
if ($argv[$i] == "-h")
help($argv[0]);
elseif($argv[$i] == "-e")
{
if ($argv[$i+1] == "Y") $euristic_active = true;
if ($argv[$i+1] == "N") $euristic_active = false;
}
elseif($argv[$i] == "-p")
$euristic_sens = $argv[$i+1];
elseif($argv[$i] == "-d")
{
dir_scan($argv[$i+1]);
exit;
}
elseif($argv[$i] == "-f")
{
a($argv[$i+1]);
exit;
}
}
dir_scan(".");
function dir_scan($name)
{
if (!is_dir($name))
echo "$name is not a dir\n";
if ($o = @opendir($name))
{
while(false !== ($file = readdir($o)))
{
if ($file == '.' or $file == '..' or $file == basename(__file__)){ continue;}
else if (is_dir($name."/".$file)){dir_scan($name."/".$file);}
else
a($name."/".$file);
}
closedir($o);
}
else
echo "i can't open $name dir\n";
}
function a($file)
{
global $euristic_active;
global $euristic_sens;
if ($l = file_get_contents($file))
{
if ( $shell = check($l))
{
echo "[DANGER] word_list > ".$file."\tprobably ".$shell." shell\n";
}
else if ($euristic_active)
if ($t = check_euristic($l) and $t > $euristic_sens)
{
echo "[_ALERT] euristic $t%> ".$file."\tprobably is a shell\n";
}
}
else
{
echo "i can't open $file file\n";
}
}
function check($string)
{
$check = 0;
global $word__;
foreach($word__ as $shell => $code)
foreach($code as $microcode)
if (stripos($string, $microcode) !== false)
{
$check ++;
if ($check == 3) return $shell;
}
return false;
}
function check_euristic($string)
{
global $euristic__;
$check = 0;
foreach($euristic__ as $code)
if (stripos($string, $code) !== false)
$check++;
return intval(($check * 100) / count($euristic__));
}
function help($me)
{
echo "Blackc0de shell scanner\n".
"$me {-e [euristic method default = Y] Y/N -p [[0-100] euristic sensibility fewer == most feeble ] [-d [directory] / -f [file] ]}\n".
"exemple: $me -e N -d /tmp\n"
;
exit;
}
?>
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