//public void ReduceMemoryUsage(object sender, MemoryUsageLimiter.ReduceMemoryUsageEventParameters parameters)
//{
//_ipHistoryCache.RecoverSpace(parameters.FractionOfMemoryToTryToRemove);
//}
public Simulator(DebugLogger logger, string path, ExperimentalConfiguration myExperimentalConfiguration, SimulatedPasswords simPasswords)
{
_simPasswords = simPasswords;
_logger = logger;
_AttackAttemptsWithValidPasswords = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "AttackAttemptsWithValidPasswords.txt");
//(new StreamWriter(new FileStream(path + "AttackAttemptsWithValidPasswords.txt", FileMode.CreateNew, FileAccess.Write)));
_LegitimateAttemptsWithValidPasswords = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "LegitimateAttemptsWithValidPasswords.txt");
//(new StreamWriter(new FileStream(path + "LegitiamteAttemptsWithValidPasswords.txt", FileMode.CreateNew, FileAccess.Write)));
_OtherAttempts = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "OtherAttempts.txt");
//(new StreamWriter(new FileStream(path + "OtherAttempts.txt", FileMode.CreateNew, FileAccess.Write)));
_logger.WriteStatus("Entered Simulator constructor");
_experimentalConfiguration = myExperimentalConfiguration;
BlockingAlgorithmOptions options = _experimentalConfiguration.BlockingOptions;
_logger.WriteStatus("Creating binomial ladder");
_binomialLadderFilter =
new BinomialLadderFilter(options.NumberOfBitsInBinomialLadderFilter_N, options.HeightOfBinomialLadder_H);
_ipHistoryCache = new ConcurrentDictionary <IPAddress, SimIpHistory>(); // new SelfLoadingCache<IPAddress, SimIpHistory>(address => new SimIpHistory(options.NumberOfFailuresToTrackForGoingBackInTimeToIdentifyTypos));
_userAccountController = new SimulatedUserAccountController();
//_memoryUsageLimiter = new MemoryUsageLimiter();
//_memoryUsageLimiter.OnReduceMemoryUsageEventHandler += ReduceMemoryUsage;
_recentIncorrectPasswords = new AgingMembershipSketch(16, 128 * 1024);
_logger.WriteStatus("Exiting Simulator constructor");
}
public SimulatedPasswords(DebugLogger logger, ExperimentalConfiguration config)
{
_logger = logger;
_logger.WriteStatus("Loading popular password file");
LoadPasswordSelector(config.PasswordFrequencyFile);
if (config.PopularPasswordsToRemoveFromDistribution > 0)
{
_passwordSelector = _passwordSelector.TrimToRemoveInitialItems(config.PopularPasswordsToRemoveFromDistribution);
}
_logger.WriteStatus("Loading passwords known to be common by the algorithm before the attack");
LoadKnownPopularPasswords(config.PreviouslyKnownPopularPasswordFile);
_logger.WriteStatus("Creating common password selector");
_commonPasswordSelector = _passwordSelector.TrimToInitialItems(
(int)config.NumberOfPopularPasswordsForAttackerToExploit);
_logger.WriteStatus("Finished creating common password selector");
_logger.WriteStatus("Creating list of most common passwords");
OrderedListOfMostCommonPasswords =
_passwordSelector.GetItems();
_logger.WriteStatus("Finished creating list of most common passwords");
}
public SimulatedPasswords(DebugLogger logger, ExperimentalConfiguration config)
{
_logger = logger;
_logger.WriteStatus("Loading popular password file");
LoadPasswordSelector(config.PasswordFrequencyFile);
if (config.PopularPasswordsToRemoveFromDistribution > 0)
{
_passwordSelector = _passwordSelector.TrimToRemoveInitialItems(config.PopularPasswordsToRemoveFromDistribution);
}
_logger.WriteStatus("Loading passwords known to be common by the algorithm before the attack");
LoadKnownPopularPasswords(config.PreviouslyKnownPopularPasswordFile);
_logger.WriteStatus("Creating common password selector");
_commonPasswordSelector = _passwordSelector.TrimToInitialItems(
(int)config.NumberOfPopularPasswordsForAttackerToExploit);
_logger.WriteStatus("Finished creating common password selector");
_logger.WriteStatus("Creating list of most common passwords");
OrderedListOfMostCommonPasswords =
_passwordSelector.GetItems();
_logger.WriteStatus("Finished creating list of most common passwords");
}
/// <summary>
/// Evaluate the accuracy of our stopguessing service by sending user logins and malicious traffic
/// </summary>
/// <returns></returns>
public void Run()
{
_logger.WriteStatus("In RunInBackground");
_logger.WriteStatus("Priming password-tracking with known common passwords");
_simPasswords.PrimeWithKnownPasswordsAsync(_binomialLadderFilter, 40);
_logger.WriteStatus("Finished priming password-tracking with known common passwords");
_logger.WriteStatus("Creating IP Pool");
_ipPool = new IpPool(_experimentalConfiguration);
_logger.WriteStatus("Generating simualted account records");
_simAccounts = new SimulatedAccounts(_ipPool, _simPasswords, _logger);
_simAccounts.Generate(_experimentalConfiguration);
_logger.WriteStatus("Creating login-attempt generator");
_attemptGenerator = new SimulatedLoginAttemptGenerator(_experimentalConfiguration, _simAccounts, _ipPool,
_simPasswords);
_logger.WriteStatus("Finiished creating login-attempt generator");
foreach (
ConcurrentStreamWriter writer in
new[]
{ _AttackAttemptsWithValidPasswords, _LegitimateAttemptsWithValidPasswords, _OtherAttempts })
{
lock (writer)
{
writer.WriteLine(string.Format("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}\t{7}\t{8}\t{9}\t{10}" +
"\t{11}\t{12}\t{13}\t{14}\t{15}\t{16}\t{17}\t{18}\t{19}\t{20}\t{21}\t{22}\t{23}\t{24}\t{25}",
"Password",
"UserID",
"IP",
"DeviceCookie",
"IsFrequentlyGuessedPw",
"IsPasswordCorrect",
"IsFromAttackAttacker",
"IsAGuess",
"IPInOposingPool",
"IsClientAProxyIP",
"TypeOfMistake",
"DecayedInvalidAttemptsPerPassword",
"DecayedMaxConsecutiveIncorrectAttemptsPerAccount",
"DecayedSuccessfulLogins",
"DecayedAccountFailuresInfrequentPassword",
"DecayedAccountFailuresFrequentPassword",
"DecayedRepeatAccountFailuresInfrequentPassword",
"DecayedRepeatAccountFailuresFrequentPassword",
"DecayedPasswordFailuresNoTypoInfrequentPassword",
"DecayedPasswordFailuresNoTypoFrequentPassword",
"DecayedPasswordFailuresTypoInfrequentPassword",
"DecayedPasswordFailuresTypoFrequentPassword",
"DecayedRepeatPasswordFailuresNoTypoInfrequentPassword",
"DecayedRepeatPasswordFailuresNoTypoFrequentPassword",
"DecayedRepeatPasswordFailuresTypoInfrequentPassword",
"DecayedRepeatPasswordFailuresTypoFrequentPassword"
));
}
}
TimeSpan testTimeSpan = _experimentalConfiguration.TestTimeSpan;
double ticksBetweenLogins = ((double)testTimeSpan.Ticks) /
(double)_experimentalConfiguration.TotalLoginAttemptsToIssue;
int interlockedCount = 0;
Parallel.For(0L, (long)_experimentalConfiguration.TotalLoginAttemptsToIssue, (count, pls) =>
//) TaskParalllel.RepeatWithWorkers(_experimentalConfiguration.TotalLoginAttemptsToIssue,
//async (count, cancelToken) =>
// (count) =>
{
interlockedCount = Interlocked.Add(ref interlockedCount, 1);
if (interlockedCount % 10000 == 0)
{
_logger.WriteStatus("Login Attempt {0:N0}", interlockedCount);
}
DateTime eventTimeUtc = StartTimeUtc.AddTicks((long)(ticksBetweenLogins * interlockedCount));
SimulatedLoginAttempt simAttempt;
if (StrongRandomNumberGenerator.GetFraction() <
_experimentalConfiguration.FractionOfLoginAttemptsFromAttacker)
{
switch (_experimentalConfiguration.AttackersStrategy)
{
case ExperimentalConfiguration.AttackStrategy.UseUntilLikelyPopular:
simAttempt =
_attemptGenerator.MaliciousLoginAttemptBreadthFirstAvoidMakingPopular(eventTimeUtc);
break;
case ExperimentalConfiguration.AttackStrategy.Weighted:
simAttempt = _attemptGenerator.MaliciousLoginAttemptWeighted(eventTimeUtc);
break;
case ExperimentalConfiguration.AttackStrategy.BreadthFirst:
default:
simAttempt = _attemptGenerator.MaliciousLoginAttemptBreadthFirst(eventTimeUtc);
break;
}
}
else
{
simAttempt = _attemptGenerator.BenignLoginAttempt(eventTimeUtc);
}
// Get information about the client's IP
SimIpHistory ipHistory = _ipHistoryCache.GetOrAdd(simAttempt.AddressOfClientInitiatingRequest,
(ip) => new SimIpHistory(
_experimentalConfiguration.BlockingOptions
.NumberOfFailuresToTrackForGoingBackInTimeToIdentifyTypos));
//SimIpHistory ipHistory = await _ipHistoryCache.GetAsync(simAttempt.AddressOfClientInitiatingRequest, cancelToken);
double[] scores = ipHistory.GetAllScores(_experimentalConfiguration.BlockingOptions.BlockScoreHalfLife,
simAttempt.TimeOfAttemptUtc);
simAttempt.UpdateSimulatorState(this, ipHistory);
double decayingInvalidPasswordAttempts = 0d;
if (simAttempt.IsPasswordValid)
{
DecayingDouble incorrectPasswordAttempts;
if (_incorrectPasswordCounts.TryGetValue(simAttempt.Password, out incorrectPasswordAttempts))
{
decayingInvalidPasswordAttempts = incorrectPasswordAttempts.GetValue(_experimentalConfiguration.BlockingOptions.BlockScoreHalfLife, simAttempt.TimeOfAttemptUtc);
}
}
else
{
decayingInvalidPasswordAttempts = 1d;
DecayingDouble incorrectPasswordAttempts;
if (_incorrectPasswordCounts.TryGetValue(simAttempt.Password, out incorrectPasswordAttempts))
{
decayingInvalidPasswordAttempts += incorrectPasswordAttempts.GetValue(_experimentalConfiguration.BlockingOptions.BlockScoreHalfLife, simAttempt.TimeOfAttemptUtc);
}
_incorrectPasswordCounts[simAttempt.Password] = new DecayingDouble(decayingInvalidPasswordAttempts, simAttempt.TimeOfAttemptUtc);
}
var ipInfo = _ipPool.GetIpAddressDebugInfo(simAttempt.AddressOfClientInitiatingRequest);
string outputString = string.Format("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}\t{7}\t{8}\t{9}\t{10}\t{11}\t{12}\t{13}",
simAttempt.Password,
simAttempt.SimAccount?.UsernameOrAccountId ?? "<null>",
simAttempt.AddressOfClientInitiatingRequest,
simAttempt.DeviceCookieHadPriorSuccessfulLoginForThisAccount ? "HadCookie" : "NoCookie",
simAttempt.IsFrequentlyGuessedPassword ? "Frequent" : "Infrequent",
simAttempt.IsPasswordValid ? "Correct" : "Incorrect",
simAttempt.IsFromAttacker ? "FromAttacker" : "FromUser",
simAttempt.IsGuess ? "IsGuess" : "NotGuess",
simAttempt.IsFromAttacker
? (ipInfo.UsedByBenignUsers ? "IsInBenignPool" : "NotUsedByBenign")
: (ipInfo.UsedByAttackers ? "IsInAttackersIpPool" : "NotUsedByAttacker"),
ipInfo.IsPartOfProxy ? "ProxyIP" : "NotAProxy",
string.IsNullOrEmpty(simAttempt.MistakeType) ? "-" : simAttempt.MistakeType,
decayingInvalidPasswordAttempts,
simAttempt.SimAccount?.MaxConsecutiveIncorrectAttempts.GetValue(_experimentalConfiguration.BlockingOptions.BlockScoreHalfLife, simAttempt.TimeOfAttemptUtc) ?? 0d,
string.Join("\t", scores.Select(s => s.ToString(CultureInfo.InvariantCulture)).ToArray())
);
if (simAttempt.IsFromAttacker && simAttempt.IsPasswordValid)
{
lock (_AttackAttemptsWithValidPasswords)
{
_AttackAttemptsWithValidPasswords.WriteLine(outputString);
//_AttackAttemptsWithValidPasswords.Flush();
}
}
else if (!simAttempt.IsFromAttacker && simAttempt.IsPasswordValid)
{
lock (_LegitimateAttemptsWithValidPasswords)
{
_LegitimateAttemptsWithValidPasswords.WriteLine(outputString);
//_LegitiamteAttemptsWithValidPasswords.Flush();
}
}
else
{
lock (_OtherAttempts)
{
_OtherAttempts.WriteLine(outputString);
//_OtherAttempts.Flush();
}
}
});
//(e) => {
//},
//cancellationToken: cancellationToken).ConfigureAwait(false);
foreach (
ConcurrentStreamWriter writer in
new []
{ _AttackAttemptsWithValidPasswords, _LegitimateAttemptsWithValidPasswords, _OtherAttempts })
{
writer.Close();
}
//_memoryUsageLimiter.Dispose();
}
/// <summary>
/// Create accounts, generating passwords, primary IP
/// </summary>
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
public async Task GenerateAsync(ExperimentalConfiguration experimentalConfiguration,
#pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
//IUserAccountContextFactory accountContextFactory,
CancellationToken cancellationToken = default(CancellationToken))
{
_logger.WriteStatus("Creating {0:N0} benign accounts", experimentalConfiguration.NumberOfBenignAccounts);
MemoryUserAccountController userAccountController = new MemoryUserAccountController();;
ConcurrentBag <SimulatedUserAccount> benignSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();
//
// Create benign accounts in parallel
Parallel.For(0, (int)experimentalConfiguration.NumberOfBenignAccounts, (index) =>
{
if (index > 0 && index % 10000 == 0)
{
_logger.WriteStatus("Created {0:N0} benign accounts", index);
}
SimulatedUserAccount userAccount = new SimulatedUserAccount()
{
UsernameOrAccountId = "user_" + index.ToString(),
Password = _simPasswords.GetPasswordFromWeightedDistribution()
};
userAccount.ClientAddresses.Add(_ipPool.GetNewRandomBenignIp());
userAccount.Cookies.Add(StrongRandomNumberGenerator.Get64Bits().ToString());
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);
//
// Right after creating benign accounts we create IPs and accounts controlled by the attacker.
// (We create the attacker IPs here, and not earlier, because we need to have the benign IPs generated in order to create overlap)
_logger.WriteStatus("Creating attacker IPs");
_ipPool.GenerateAttackersIps();
_logger.WriteStatus("Creating {0:N0} attacker accounts",
experimentalConfiguration.NumberOfAttackerControlledAccounts);
ConcurrentBag <SimulatedUserAccount> maliciousSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();
//
// Create accounts in parallel
Parallel.For(0, (int)experimentalConfiguration.NumberOfAttackerControlledAccounts, (index) =>
{
SimulatedUserAccount userAccount = new SimulatedUserAccount()
{
UsernameOrAccountId = "attacker_" + index.ToString(),
Password = _simPasswords.GetPasswordFromWeightedDistribution(),
};
userAccount.ClientAddresses.Add(_ipPool.GetRandomMaliciousIp());
maliciousSimulatedAccountBag.Add(userAccount);
});
AttackerAccounts = maliciousSimulatedAccountBag.ToList();
_logger.WriteStatus("Finished creating {0:N0} attacker accounts",
experimentalConfiguration.NumberOfAttackerControlledAccounts);
//
// Now create full UserAccount records for each simulated account and store them into the account context
Parallel.ForEach(BenignAccounts.Union(AttackerAccounts),
(simAccount, loopState) =>
{
//if (loopState. % 10000 == 0)
// _logger.WriteStatus("Created account {0:N0}", index);
simAccount.CreditHalfLife = experimentalConfiguration.BlockingOptions.AccountCreditLimitHalfLife;
simAccount.CreditLimit = experimentalConfiguration.BlockingOptions.AccountCreditLimit;
foreach (string cookie in simAccount.Cookies)
{
userAccountController.HasClientWithThisHashedCookieSuccessfullyLoggedInBeforeAsync(
simAccount,
LoginAttempt.HashCookie(cookie),
cancellationToken);
}
});
_logger.WriteStatus("Finished creating user accounts for each simluated account record");
}
//public void ReduceMemoryUsage(object sender, MemoryUsageLimiter.ReduceMemoryUsageEventParameters parameters)
//{
//_ipHistoryCache.RecoverSpace(parameters.FractionOfMemoryToTryToRemove);
//}
public Simulator(DebugLogger logger, string path, ExperimentalConfiguration myExperimentalConfiguration, SimulatedPasswords simPasswords)
{
_simPasswords = simPasswords;
_logger = logger;
_AttackAttemptsWithValidPasswords = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "AttackAttemptsWithValidPasswords.txt");
//(new StreamWriter(new FileStream(path + "AttackAttemptsWithValidPasswords.txt", FileMode.CreateNew, FileAccess.Write)));
_LegitimateAttemptsWithValidPasswords = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "LegitimateAttemptsWithValidPasswords.txt");
//(new StreamWriter(new FileStream(path + "LegitiamteAttemptsWithValidPasswords.txt", FileMode.CreateNew, FileAccess.Write)));
_OtherAttempts = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "OtherAttempts.txt");
//(new StreamWriter(new FileStream(path + "OtherAttempts.txt", FileMode.CreateNew, FileAccess.Write)));
_logger.WriteStatus("Entered Simulator constructor");
_experimentalConfiguration = myExperimentalConfiguration;
BlockingAlgorithmOptions options = _experimentalConfiguration.BlockingOptions;
_logger.WriteStatus("Creating binomial ladder");
_binomialLadderFilter =
new BinomialLadderFilter(options.NumberOfBitsInBinomialLadderFilter_N, options.HeightOfBinomialLadder_H);
_ipHistoryCache = new ConcurrentDictionary<IPAddress, SimIpHistory>(); // new SelfLoadingCache<IPAddress, SimIpHistory>(address => new SimIpHistory(options.NumberOfFailuresToTrackForGoingBackInTimeToIdentifyTypos));
_userAccountController = new SimulatedUserAccountController();
//_memoryUsageLimiter = new MemoryUsageLimiter();
//_memoryUsageLimiter.OnReduceMemoryUsageEventHandler += ReduceMemoryUsage;
_recentIncorrectPasswords = new AgingMembershipSketch(16, 128 * 1024);
_logger.WriteStatus("Exiting Simulator constructor");
}
/// <summary>
/// Evaluate the accuracy of our stopguessing service by sending user logins and malicious traffic
/// </summary>
/// <returns></returns>
public async Task Run(CancellationToken cancellationToken = default(CancellationToken))
{
_logger.WriteStatus("In RunInBackground");
_logger.WriteStatus("Priming password-tracking with known common passwords");
_simPasswords.PrimeWithKnownPasswordsAsync(_binomialLadderFilter, 40);
_logger.WriteStatus("Finished priming password-tracking with known common passwords");
_logger.WriteStatus("Creating IP Pool");
_ipPool = new IpPool(_experimentalConfiguration);
_logger.WriteStatus("Generating simualted account records");
_simAccounts = new SimulatedAccounts(_ipPool, _simPasswords, _logger);
await _simAccounts.GenerateAsync(_experimentalConfiguration, cancellationToken);
_logger.WriteStatus("Creating login-attempt generator");
_attemptGenerator = new SimulatedLoginAttemptGenerator(_experimentalConfiguration, _simAccounts, _ipPool, _simPasswords);
_logger.WriteStatus("Finiished creating login-attempt generator");
foreach (TextWriter writer in new TextWriter[] { _AttackAttemptsWithValidPasswords, _LegitiamteAttemptsWithValidPasswords, _OtherAttempts })
{
writer.WriteLine("{0},{1},{2},{3},{4},{5},{6},{7},{8},{9}", //,{9}
"Password",
"UserID",
"IP",
"IsFrequentlyGuessedPw",
"IsPasswordCorrect",
"IsFromAttackAttacker",
"IsAGuess",
"IPInOposingPool",
"IsClientAProxyIP",
"TypeOfMistake"
//string.Join(",")
);
}
TimeSpan testTimeSpan = _experimentalConfiguration.TestTimeSpan;
double ticksBetweenLogins = ((double)testTimeSpan.Ticks) / (double)_experimentalConfiguration.TotalLoginAttemptsToIssue;
await TaskParalllel.RepeatWithWorkers(_experimentalConfiguration.TotalLoginAttemptsToIssue, async (count, cancelToken) =>
{
if (count % 10000 == 0)
{
_logger.WriteStatus("Login Attempt {0:N0}", count);
}
DateTime eventTimeUtc = StartTimeUtc.AddTicks((long)(ticksBetweenLogins *count));
SimulatedLoginAttempt simAttempt;
if (StrongRandomNumberGenerator.GetFraction() <
_experimentalConfiguration.FractionOfLoginAttemptsFromAttacker)
{
switch (_experimentalConfiguration.AttackersStrategy)
{
case ExperimentalConfiguration.AttackStrategy.UseUntilLikelyPopular:
simAttempt = _attemptGenerator.MaliciousLoginAttemptBreadthFirstAvoidMakingPopular(eventTimeUtc);
break;
case ExperimentalConfiguration.AttackStrategy.Weighted:
simAttempt = _attemptGenerator.MaliciousLoginAttemptWeighted(eventTimeUtc);
break;
case ExperimentalConfiguration.AttackStrategy.BreadthFirst:
default:
simAttempt = _attemptGenerator.MaliciousLoginAttemptBreadthFirst(eventTimeUtc);
break;
}
}
else
{
simAttempt = _attemptGenerator.BenignLoginAttempt(eventTimeUtc);
}
// Get information about the client's IP
SimIpHistory ipHistory = await _ipHistoryCache.GetAsync(simAttempt.AddressOfClientInitiatingRequest, cancelToken);
double[] scores = ipHistory.GetAllScores(_experimentalConfiguration.BlockingOptions.BlockScoreHalfLife,
simAttempt.TimeOfAttemptUtc);
simAttempt.UpdateSimulatorState(this, ipHistory);
var ipInfo = _ipPool.GetIpAddressDebugInfo(simAttempt.AddressOfClientInitiatingRequest);
string outputString = string.Format("{0},{1},{2},{3},{4},{5},{6},{7},{8},{9},{10}",
simAttempt.Password,
simAttempt.SimAccount?.UsernameOrAccountId ?? "<null>",
simAttempt.AddressOfClientInitiatingRequest,
simAttempt.IsFrequentlyGuessedPassword ? "Frequent" : "Infrequent",
simAttempt.IsPasswordValid ? "Correct" : "Incorrect",
simAttempt.IsFromAttacker ? "FromAttacker" : "FromUser",
simAttempt.IsGuess ? "IsGuess" : "NotGuess",
simAttempt.IsFromAttacker ? (ipInfo.UsedByBenignUsers ? "IsInBenignPool" : "NotUsedByBenign") :
(ipInfo.UsedByAttackers ? "IsInAttackersIpPool" : "NotUsedByAttacker"),
ipInfo.IsPartOfProxy ? "ProxyIP" : "NotAProxy",
string.IsNullOrEmpty(simAttempt.MistakeType) ? "-" : simAttempt.MistakeType,
string.Join(",", scores.Select(s => s.ToString(CultureInfo.InvariantCulture)).ToArray())
);
if (simAttempt.IsFromAttacker && simAttempt.IsPasswordValid)
{
await _AttackAttemptsWithValidPasswords.WriteLineAsync(outputString);
await _AttackAttemptsWithValidPasswords.FlushAsync();
}
else if (!simAttempt.IsFromAttacker && simAttempt.IsPasswordValid)
{
await _LegitiamteAttemptsWithValidPasswords.WriteLineAsync(outputString);
await _LegitiamteAttemptsWithValidPasswords.FlushAsync();
}
else
{
await _OtherAttempts.WriteLineAsync(outputString);
await _OtherAttempts.FlushAsync();
}
},
//(e) => {
//},
cancellationToken : cancellationToken);
_memoryUsageLimiter.Dispose();
}
/// <summary>
/// Create accounts, generating passwords, primary IP
/// </summary>
public void Generate(ExperimentalConfiguration experimentalConfiguration)
{
SimulatedUserAccountController simUserAccountController = new SimulatedUserAccountController();
_logger.WriteStatus("Creating {0:N0} benign accounts", experimentalConfiguration.NumberOfBenignAccounts);
ConcurrentBag <SimulatedUserAccount> benignSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();
//
// Create benign accounts in parallel
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);
//
// Right after creating benign accounts we create IPs and accounts controlled by the attacker.
// (We create the attacker IPs here, and not earlier, because we need to have the benign IPs generated in order to create overlap)
_logger.WriteStatus("Creating attacker IPs");
_ipPool.GenerateAttackersIps();
_logger.WriteStatus("Creating {0:N0} attacker accounts",
experimentalConfiguration.NumberOfAttackerControlledAccounts);
ConcurrentBag <SimulatedUserAccount> maliciousSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();
//
// Create accounts in parallel
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 {0:N0} attacker accounts",
experimentalConfiguration.NumberOfAttackerControlledAccounts);
//
// Now create full UserAccount records for each simulated account and store them into the account context
Parallel.ForEach(BenignAccounts.Union(AttackerAccounts),
(simAccount, loopState) =>
{
//if (loopState. % 10000 == 0)
// _logger.WriteStatus("Created account {0:N0}", index);
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");
}
