owen800q

public void nativeGenerate2() {
    System.out.println("start call nativeGenerate2");
    DvmClass SecureNative_cls = vm.resolveClass("com/xunmeng/pinduoduo/secure/SecureNative");
    DvmObject<?> context = vm.resolveClass("android/content/Context").newObject(null);
    int context_ptr = vm.addLocalObject(context);
    int str1_ptr = vm.addLocalObject(new StringObject(vm, ""));
    int str2_ptr = vm.addLocalObject(new StringObject(vm, "Ck5UqWFzreofeABcWvkAAg=="));
    int str3_ptr = vm.addLocalObject(new StringObject(vm, "1Hdy4cQW"));
    int str4_ptr = vm.addLocalObject(new StringObject(vm, "/storage/emulated/0"));
    int str5_ptr = vm.addLocalObject(new StringObject(vm, "version=134&info=g6iUSuzNlWeDi%2FxPng%2FN%2B8ZyQEP%2FnQuHC42hkmSWvCOg79IqfkRW5Lu3jsAh0QwizbgZZSg1FOEI%0Ao4R%2F6pw6XXsv%2FxH%2FzUDXzxJ5UXUYGMSYhF%2BULFIhbWMihyiUWSRA%2FamuTFPOOd17oppNLL6QvlSp%0A9rC2BHcgOMfMaYgq0uuiVDJB4cXNREX10fgGf20jz56kh%2B6ejh1iHIEYffs3OKbtp9M7FqmSpiQY%0AuAHzn7rCorHuZDP8tyvStvBqpdDxO92eeEt%2BprLDqsM1HfA%2BX3ItGURbaT4%2BQ

owen800q

console.log("Loading script...");

var getaddrinfoPtr = Module.findExportByName(null, 'getaddrinfo')
var connectPtr = Module.findExportByName(null, 'connect')
var sendPtr = Module.findExportByName(null, 'send')
var recvPtr = Module.findExportByName(null, 'recv')

var getaddrinfoFunction = new NativeFunction(getaddrinfoPtr, 'int', ['pointer', 'pointer', 'pointer', 'pointer'])
var connectFunction = new NativeFunction(connectPtr, 'int', ['int', 'pointer', 'int'])
var sendFunction = new NativeFunction(sendPtr, 'int', ['int', 'pointer', 'int', 'int'])

owen800q

const utils = {
	colors: {
		red: function(string) {
			return '\x1b[31m' + string + '\x1b[0m';
		},

		green: function(string) {
			return '\x1b[32m' + string + '\x1b[0m';
		},

owen800q

/*  Android ssl certificate pinning bypass script for various methods
	by Maurizio Siddu
	
	Run with:
	frida -U -f [APP_ID] -l frida_multiple_unpinning.js --no-pause
*/

setTimeout(function() {
	Java.perform(function () {
		console.log('');

owen800q

/**
 * run the script to a running app: frida -U "appName" -l flutter_ios.js --no-pause
 * start app direct with the script:  frida -Uf bundleIdentifier -l flutter_ios.js --no-pause
 */
// #############################################
// HELPER SECTION START
var colors = {
    "resetColor": "\x1b[0m",
    "green": "\x1b[32m",
    "yellow": "\x1b[33m",

owen800q

/**
 * run the script to a running app: frida -U "appName" -l flutter_ios.js --no-pause
 * start app direct with the script:  frida -Uf bundleIdentifier -l flutter_ios.js --no-pause
 */
// #############################################
// HELPER SECTION START
var colors = {
    "resetColor": "\x1b[0m",
    "green": "\x1b[32m",
    "yellow": "\x1b[33m",

owen800q

Mike's x86-64 Assembly (ASM) Notes

Assembling Binary Machine Code

Operating Modes:

These determine the assumed/default size of instruction operands, and restricts which opcodes are available, and how they are used.

Modern operating systems, booted inside Real mode,

owen800q

Async Await Best Practices Cheat Sheet

Summary of Asynchronous Programming Guidelines

Name	Description	Exceptions
Avoid async void	Prefer async Task methods over async void methods	Event handlers
Async all the way	Don't mix blocking and async code	Console main method
Configure context	Use ConfigureAwait(false) when you can	Methods that require con­text

owen800q

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

owen800q

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers