Ejemplo n.º 1
0
        public SimulatedLoginAttempt BenignLoginAttempt(DateTime eventTimeUtc)
        {
            lock (ScheduledBenignAttempts)
            {
                if (ScheduledBenignAttempts.Count > 0 &&
                    ScheduledBenignAttempts.First().TimeOfAttemptUtc < eventTimeUtc)
                {
                    SimulatedLoginAttempt result = ScheduledBenignAttempts.First();
                    ScheduledBenignAttempts.Remove(result);
                    return(result);
                }
            }

            string mistake = "";
            SimulatedUserAccount account = _simAccounts.BenignAccountSelector.GetItemByWeightedRandom();

            string cookie;

            if (account.Cookies.Count == 0 ||
                (account.Cookies.Count < _experimentalConfiguration.MaxCookiesPerUserAccount && StrongRandomNumberGenerator.GetFraction() > _experimentalConfiguration.ChanceOfCoookieReUse))
            {
                cookie = StrongRandomNumberGenerator.Get64Bits().ToString();
                account.Cookies.Add(cookie);
            }
            else
            {
                cookie = account.Cookies.ToArray()[(int)StrongRandomNumberGenerator.Get32Bits(account.Cookies.Count)];
            }

            IPAddress clientIp;

            if (account.ClientAddresses.Count == 0 ||
                (account.ClientAddresses.Count < _experimentalConfiguration.MaxIpPerUserAccount && StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfIpReUse))
            {
                account.ClientAddresses.Add(clientIp = _ipPool.GetNewRandomBenignIp());
            }
            else
            {
                clientIp = account.ClientAddresses.ToArray()[(int)StrongRandomNumberGenerator.Get32Bits(account.ClientAddresses.Count)];
            }

            string password = account.Password;

            if (StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfLongRepeatOfStalePassword)
            {
                string newPassword = _simPasswords.GetPasswordFromWeightedDistribution();
                _userAccountController.SetPassword(account, newPassword, account.Password);
                mistake += "StalePassword";

                lock (ScheduledBenignAttempts)
                {
                    double   additionalMistakes = 0;
                    DateTime currentTimeUtc     = eventTimeUtc;
                    for (additionalMistakes = 1; additionalMistakes < _experimentalConfiguration.LengthOfLongRepeatOfOldPassword; additionalMistakes++)
                    {
                        currentTimeUtc = currentTimeUtc.AddSeconds(_experimentalConfiguration.MinutesBetweenLongRepeatOfOldPassword);
                        ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                        account, password, false, false, clientIp, cookie, mistake, currentTimeUtc));
                    }
                    for (uint correctLogins = 1; correctLogins < _experimentalConfiguration.LengthOfLongRepeatOfOldPassword; correctLogins++)
                    {
                        currentTimeUtc = currentTimeUtc.AddSeconds(_experimentalConfiguration.MinutesBetweenLongRepeatOfOldPassword);
                        ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                        account, newPassword, false, false, clientIp, cookie, mistake, currentTimeUtc));
                    }
                }
            }

            if (StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfBenignPasswordTypo)
            {
                mistake += "Typo";
                lock (ScheduledBenignAttempts)
                {
                    double additionalMistakes = 0;
                    while (StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfRepeatTypo)
                    {
                        ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                        account, AddTypoToPassword(password), false, false, clientIp, cookie, mistake,
                                                        eventTimeUtc.AddSeconds(_experimentalConfiguration.DelayBetweenRepeatBenignErrorsInSeconds * ++additionalMistakes)));
                    }
                    ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                    account, password, false, false, clientIp, cookie, "", eventTimeUtc.AddSeconds(
                                                        _experimentalConfiguration.DelayBetweenRepeatBenignErrorsInSeconds * (1 + additionalMistakes))));
                }
                password = AddTypoToPassword(password);
            }

            if (StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfAccidentallyUsingAnotherAccountPassword)
            {
                mistake += "WrongPassword";

                lock (ScheduledBenignAttempts)
                {
                    double additionalMistakes = 0;
                    while (StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfRepeatUseOfPasswordFromAnotherAccount)
                    {
                        ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                        account, _simPasswords.GetPasswordFromWeightedDistribution(), false, false, clientIp, cookie,
                                                        mistake, eventTimeUtc.AddSeconds(_experimentalConfiguration.DelayBetweenRepeatBenignErrorsInSeconds * ++additionalMistakes)));
                    }
                    ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                    account, password, false, false, clientIp, cookie, "", eventTimeUtc.AddSeconds(
                                                        _experimentalConfiguration.DelayBetweenRepeatBenignErrorsInSeconds * (additionalMistakes + 1))));
                }

                password = _simPasswords.GetPasswordFromWeightedDistribution();
            }

            if (StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfBenignAccountNameTypoResultingInAValidUserName)
            {
                mistake += "WrongAccountName";

                lock (ScheduledBenignAttempts)
                {
                    double additionalMistakes = 0;
                    while (StrongRandomNumberGenerator.GetFraction() < _experimentalConfiguration.ChanceOfRepeatWrongAccountName)
                    {
                        ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                        _simAccounts.GetBenignAccountAtRandomUniform(), password, false, false, clientIp, cookie, mistake, eventTimeUtc.AddSeconds(
                                                            _experimentalConfiguration.DelayBetweenRepeatBenignErrorsInSeconds * ++additionalMistakes)));
                    }
                    ScheduledBenignAttempts.Add(new SimulatedLoginAttempt(
                                                    account, password, false, false, clientIp, cookie, "", eventTimeUtc.AddSeconds(
                                                        _experimentalConfiguration.DelayBetweenRepeatBenignErrorsInSeconds * (additionalMistakes + 1))));

                    account = _simAccounts.GetBenignAccountAtRandomUniform();
                }
            }

            return(new SimulatedLoginAttempt(account, password, false, false, clientIp, cookie, mistake, eventTimeUtc));
        }
Ejemplo n.º 2
0
        public void Generate(ExperimentalConfiguration experimentalConfiguration)
        {
            SimulatedUserAccountController simUserAccountController = new SimulatedUserAccountController();

            _logger.WriteStatus("Creating accounts");
            ConcurrentBag <SimulatedUserAccount> benignSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();

            Parallel.For(0, (int)experimentalConfiguration.NumberOfBenignAccounts, (index) =>
            {
                //if (index > 0 && index % 10000 == 0)
                //    _logger.WriteStatus("Created {0:N0} benign accounts", index);
                SimulatedUserAccount userAccount = simUserAccountController.Create(
                    "user_" + index.ToString(),
                    _simPasswords.GetPasswordFromWeightedDistribution()
                    );
                userAccount.ClientAddresses.Add(_ipPool.GetNewRandomBenignIp());
                string initialCookie = StrongRandomNumberGenerator.Get64Bits().ToString();
                userAccount.Cookies.Add(initialCookie);
                userAccount.HashesOfCookiesOfClientsThatHaveSuccessfullyLoggedIntoThisAccount[initialCookie] = true;

                benignSimulatedAccountBag.Add(userAccount);

                double inverseFrequency = Distributions.GetLogNormal(0, 1);
                if (inverseFrequency < 0.01d)
                {
                    inverseFrequency = 0.01d;
                }
                if (inverseFrequency > 50d)
                {
                    inverseFrequency = 50d;
                }
                double frequency = 1 / inverseFrequency;
                lock (BenignAccountSelector)
                {
                    BenignAccountSelector.AddItem(userAccount, frequency);
                }
            });
            BenignAccounts = benignSimulatedAccountBag.ToList();
            // _logger.WriteStatus("Finished creating {0:N0} benign accounts",
            //     experimentalConfiguration.NumberOfBenignAccounts);

            //_logger.WriteStatus("Creating attacker IPs");
            _ipPool.GenerateAttackersIps();

            //_logger.WriteStatus("Creating {0:N0} attacker accounts",
            //    experimentalConfiguration.NumberOfAttackerControlledAccounts);
            ConcurrentBag <SimulatedUserAccount> maliciousSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();

            Parallel.For(0, (int)experimentalConfiguration.NumberOfAttackerControlledAccounts, (index) =>
            {
                SimulatedUserAccount userAccount = simUserAccountController.Create(
                    "attacker_" + index.ToString(),
                    _simPasswords.GetPasswordFromWeightedDistribution());

                userAccount.ClientAddresses.Add(_ipPool.GetRandomMaliciousIp());
                maliciousSimulatedAccountBag.Add(userAccount);
            });
            AttackerAccounts = maliciousSimulatedAccountBag.ToList();
            _logger.WriteStatus("Finished creating accounts",
                                experimentalConfiguration.NumberOfAttackerControlledAccounts);

            Parallel.ForEach(BenignAccounts.Union(AttackerAccounts),
                             (simAccount, loopState) =>
            {
                simAccount.CreditHalfLife = experimentalConfiguration.BlockingOptions.AccountCreditLimitHalfLife;
                simAccount.CreditLimit    = experimentalConfiguration.BlockingOptions.AccountCreditLimit;

                foreach (string cookie in simAccount.Cookies)
                {
                    simUserAccountController.HasClientWithThisHashedCookieSuccessfullyLoggedInBefore(
                        simAccount,
                        LoginAttempt.HashCookie(cookie));
                }
            });
            //_logger.WriteStatus("Finished creating user accounts for each simluated account record");
        }