pseudorandom-dga.cpp

#include <iostream>

std::string generator(int year, int month, int day, int hour, int minute, int second, int domain_len) {
    std::string domain = {};
    std::string tlds[] = { ".com", ".net", ".org", ".biz", ".io", ".run" };
    for (int i = 0; i < domain_len; i++) {
        year = ((year ^ 8 * year) >> 11) ^ ((year & 0xFFFFFFF0) << 17) ^ (hour ^ ((second ^ 0xFFFFFFF8) << 8));
        month = ((month ^ 4 * month) >> 25) ^ 16 * (month & 0xFFFFFFF8) ^ (minute ^ ((second ^ 0xFFFFFFFE) << 4));
        day = ((day ^ (day << 13)) >> 19) ^ ((day & 0xFFFFFFFE) << 12) ^ ((second ^ 0xFFFFFFF0) << 3);
        domain += (char)(((1 << (year ^ month ^ day)) % 25) + 97);
    }
    return domain + tlds[(1 << day) % 6]; 
}

int main(int argc, char *argv[])
{
    std::cout << "Hello World!\n";
    std::string ret_domain = generator(21, 2, 20, atoi(argv[1]), atoi(argv[2]), atoi(argv[3]), 16);
    std::cout << ret_domain;
    return 0;
}