It’s actually pretty simple.

Recently I had to to prompt my user for a number before starting my windowed application and looked for a function to generate sort of a MessageBox but with an input field.

Doesn’t exist apparently.

So I did something that allocates a console to the program, prompt the user classic style with a cin >> variable (would also probably work with other methods, such as scanf and other).

Here’s the code:

#include <Windows.h>
#include <iostream>
#include <string>

using namespace std;

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
AllocConsole();
freopen(“CONIN$”, “r”, stdin);
freopen(“CONOUT$”, “w”, stdout);
freopen(“CONOUT$”, “w”, stderr);

string message = “”;
cout << “Enter a message:” << endl;
cin >> message;

FreeConsole();

// string -> wstring
std::wstring wmessage;
wmessage.assign(message.begin(), message.end());

MessageBox(NULL, (LPCWSTR)&wmessage, L”Your input”, MB_OK);

return EXIT_SUCCESS;
}

I recently had to send thousands of automatically generated emails. Granted that you have a mail server that is properly managed and won’t get blacklisted (so your mails don’t end up in a spambox on the way), you can automate the sending in a script doing the SMTP transaction procedurally.

The full telnet communication to send an email with a title and content is as follows:

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Small function to get PID(s) of process(es) having a specific name.

In short, I create a snapshot of existing processes with CreateToolhelp32Snapshot, then I iterate through all of the processes in the snapshot to find the one with the researched name. The return of the function is a vector (a dynamic array) as there can be several processes with the same name.

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If you need to get all the information possible about numerous IP addresses, including all possible related emails, physical addresses, telephone numbers and more this post is for you.

I recently identified a very large number of critically vulnerable systems worldwide and I needed to contact the persons in charge of these systems to inform them of my findings and request their agreement to conduct further experiment on their systems.
The problem is, a simple whois, online or from the command line (e.g. “whois” in a Linux shell), will give numerous information about the host, but often the email is hidden for whois privacy protection.
After reading the manual of the command whois, I have seen that an extra parameter is available “whois -B” to deactivate the filters and give the email addresses.
It worked for European IPs (using the RIPE NCC RIR), but the command failed miserably for north American IPs (using ARIN RIR); for these IPs with this extra parameter, even the unprotected information was not given anymore.
However, I noticed that some specialised websites such as CentralOPs.net always return the emails when they are available, so I knew it was possible to retrieve them…

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1 per line (ip:port), with comment about their origin.

Ready to be used in your scripts (if you access this post in a long time you can just refresh the list with the origin URL)

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We keep going deeper into memory reading and writing, but this time no external software, we will learn how to read and write from and to another process (virtual) memory by ourselves.

I have written two programs in C that I will present you and explain step by step. The first one (let’s call it the legitimate program) loads two variables in memory (an integer and a string) and the other one (let’s call it the hacktool) opens the first program’s memory, reads it, prompts the user for a new string to replace into the other program’s memory and replace the memory. Both program allow you to repeat the operation to perform your tests.

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A very good PDF that summarises how the memory is managed in a modern computer and how the address is virtualised by operating systems:
http://pages.cs.wisc.edu/~remzi/OSTEP/vm-intro.pdf