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Fib

Simple fibonacci number calculator.

Usage: fib nth Fibonacci number

This study focuses on the strategies used by the "xz backdoor", an extremely
complex piece of malware that contains its own x64 disassembler inside of it 
to find critical locations in your code and hijacks it by swapping out your 
code with its own as it runs.  Because this a machine-code based attack,
all code written in any program language can be attacked and is vulnerable.

Instead of targeting sshd directly, the xz 
backdoor injects itself in the parent systemd process then hijacks the 
GNU Dynamic Linker (ld), before sshd is even started or libcrypto.so is

Backdooring Android Apps with FatRat and Metasploit Framework

We have to set a point, mobile applications are a HUGE market today. Many entrepreneurs left behind web-based experiences for building disruptive mobile solutions. The battle of smart-phones remains today between IOs and Android. Both have pros and cons, they are designed and configured with default security settings that maybe not the ideal for non-experienced people.

This writing demonstrates a practical and simple example on how to generate a Reverse TCP back-door on an existing APK file.

This is a pretty common "Social Engineering Attack", and it's focused on generating a reverse TCP connection, where the attacker easily can generate shell access to your Android phone in the time you are using the infected application and do some harmful stuff or access your private information without any concern.

And when a mean “Social Engineering Attacks” is because the way it propagates, I’ll explain in a bit how are the

	#!/usr/bin/env python3
	# -- coding: utf-8 --

	# https://toster.ru/q/72866
	# How to
	# wget http://gist.github.com/...
	# chmod +x ya.py
	# ./ya.py download_url path/to/directory

	import os, sys, json

Service	Type	RAM	Storage	Limitations
👉 Adaptable	PaaS	256 MB	Non-persistent? (1 GB database storage available)
AWS EC2	IaaS	1 GB		⚠️ Only free for 1 year

	package main

	import (
	"encoding/csv"
	"fmt"
	"os"
	)

	type CsvLine struct {
	Column1 string

	# gruvbox-dark colorscheme for kitty
	# snazzy theme used as base

	foreground #ebdbb2
	background #272727
	selection_foreground #655b53
	selection_background #ebdbb2
	url_color #d65c0d

	# black

	import tiktoken
	import langdetect
	T = tiktoken.get_encoding("o200k_base")

	length_dict = {}

	for i in range(T.n_vocab):
	try:
	length_dict[i] = len(T.decode([i]))
	except:

	import {useState, useEffect, useRef, useCallback} from 'react';
	import {View,Text,BackHandler, Share as RNshare, Platform} from 'react-native';
	import {WebView} from 'react-native-webview';
	import {useRoute, useNavigation} from '@react-navigation/native';
	import {useFocusEffect, useIsFocused} from '@react-navigation/native';
	import Share from 'react-native-share';
	import ReactNativeBlobUtil from 'react-native-blob-util';
	import styled from 'styled-components/native';
	import axios from 'axios';
	import HeaderComponentWithBackButton from '../components/HeaderComponentWithBackButton';

	public function getresultTree(array $elements, $parentId = 0) {

	$branch = array();

	foreach ($elements as $element) {
	if ($element['parent_id'] == $parentId) {

	$children = getresultTree($elements, $element['id']);
	if ($children) {