示例#1
0
        internal void StartEnumeration()
        {
            var output = new BlockingCollection <Wrapper <JsonBase> >();
            var writer = StartOutputWriter(output);

            foreach (var domain in _utils.GetDomainList())
            {
                Extensions.SetPrimaryDomain(domain);
                _noPing       = 0;
                _timeouts     = 0;
                _currentCount = 0;
                Console.WriteLine($"Starting Enumeration for {domain}");

                _watch = Stopwatch.StartNew();


                var input       = new BlockingCollection <Wrapper <SearchResultEntry> >(1000);
                var taskHandles = new Task[_options.Threads];
                var ldapData    = LdapFilter.BuildLdapData(_options.ResolvedCollMethods, _options.ExcludeDC, _options.LdapFilter);

                ContainerHelpers.BuildGpoCache(domain);

                for (var i = 0; i < _options.Threads; i++)
                {
                    taskHandles[i] = StartRunner(input, output);
                }

                _statusTimer.Start();

                foreach (var item in _utils.DoWrappedSearch(ldapData.Filter, SearchScope.Subtree, ldapData.Properties,
                                                            domain, _options.Ou))
                {
                    input.Add(item);
                }

                input.CompleteAdding();
                Utils.Verbose("Waiting for enumeration threads to finish");
                Task.WaitAll(taskHandles);

                if (_entDcs.Count > 0)
                {
                    var dObj = _utils.GetForest(domain);
                    var d    = dObj == null ? domain : dObj.RootDomain.Name;
                    var n    = $"ENTERPRISE DOMAIN CONTROLLERS@{d}";
                    var obj  = new Group
                    {
                        Name    = n,
                        Members = _entDcs.ToArray()
                    };

                    obj.Properties.Add("domain", d);
                    obj.Properties.Add("objectsid", "S-1-5-9");
                    obj.Properties.Add("highvalue", true);

                    output.Add(new Wrapper <JsonBase>
                    {
                        Item = obj
                    });
                }

                _statusTimer.Stop();
                PrintStatus();
                _watch.Stop();
                Console.WriteLine($"Finished enumeration for {domain} in {_watch.Elapsed}");
                Console.WriteLine($"{_noPing} hosts failed ping. {_timeouts} hosts timedout.");
                _watch = null;
            }

            output.CompleteAdding();
            Utils.Verbose("Waiting for writer thread to finish");
            writer.Wait();

            if ((_options.ResolvedCollMethods & ResolvedCollectionMethod.SessionLoop) == 0)
            {
                return;
            }

            _options.SessionLoopRunning  = true;
            _options.ResolvedCollMethods = ResolvedCollectionMethod.SessionLoop;
            Console.WriteLine();
            Console.WriteLine("---------------------------");
            Console.WriteLine("Starting Session Loop Mode.");
            Console.WriteLine("---------------------------");
            Console.WriteLine();
            new ManualResetEvent(false).WaitOne(1000);
            StartSessionLoopEnumeration();
        }
示例#2
0
        internal void StartStealthEnumeration()
        {
            var output = new BlockingCollection <Wrapper <JsonBase> >();
            var writer = StartOutputWriter(output);

            foreach (var domainName in _utils.GetDomainList())
            {
                Extensions.SetPrimaryDomain(domainName);

                _currentCount = 0;
                _timeouts     = 0;
                _noPing       = 0;
                _watch        = Stopwatch.StartNew();

                Console.WriteLine($"Starting Stealth Enumeration for {domainName}");
                _statusTimer.Start();

                var domainSid = _utils.GetDomainSid(domainName);
                var res       = _options.ResolvedCollMethods;
                var data      = LdapFilter.BuildLdapData(res, _options.ExcludeDC, _options.LdapFilter);

                ContainerHelpers.BuildGpoCache(domainName);

                foreach (var entry in _utils.DoSearch(data.Filter, SearchScope.Subtree, data.Properties, domainName))
                {
                    var resolved = entry.ResolveAdEntry();
                    _currentCount++;
                    if (resolved == null)
                    {
                        continue;
                    }

                    Console.WriteLine(resolved.BloodHoundDisplay);
                    Console.WriteLine(resolved.ObjectType);
                    var domain = Utils.ConvertDnToDomain(entry.DistinguishedName);
                    var sid    = entry.GetSid();

                    if (resolved.ObjectType == "user")
                    {
                        var obj = new User
                        {
                            Name = resolved.BloodHoundDisplay
                        };

                        obj.Properties.Add("domain", domain);
                        obj.Properties.Add("objectsid", sid);
                        obj.Properties.Add("highvalue", false);

                        ObjectPropertyHelpers.GetProps(entry, resolved, ref obj);
                        GroupHelpers.GetGroupInfo(entry, resolved, domainSid, ref obj);
                        AclHelpers.GetObjectAces(entry, resolved, ref obj);

                        output.Add(new Wrapper <JsonBase>
                        {
                            Item = obj
                        });
                    }
                    else if (resolved.ObjectType == "group")
                    {
                        var obj = new Group
                        {
                            Name = resolved.BloodHoundDisplay
                        };

                        obj.Properties.Add("domain", domain);
                        obj.Properties.Add("objectsid", sid);

                        if (sid.EndsWith("-512") || sid.EndsWith("-516") || sid.EndsWith("-519") ||
                            sid.EndsWith("-520") || sid.Equals("S-1-5-32-544") || sid.Equals("S-1-5-32-550") ||
                            sid.Equals("S-1-5-32-549") || sid.Equals("S-1-5-32-551") || sid.Equals("S-1-5-32-548"))
                        {
                            obj.Properties.Add("highvalue", true);
                        }
                        else
                        {
                            obj.Properties.Add("highvalue", false);
                        }

                        ObjectPropertyHelpers.GetProps(entry, resolved, ref obj);
                        GroupHelpers.GetGroupInfo(entry, resolved, domainSid, ref obj);
                        AclHelpers.GetObjectAces(entry, resolved, ref obj);

                        output.Add(new Wrapper <JsonBase>
                        {
                            Item = obj
                        });
                    }
                    else if (resolved.ObjectType == "computer")
                    {
                        var obj = new Computer
                        {
                            Name = resolved.BloodHoundDisplay,
                        };

                        obj.Properties.Add("domain", domain);
                        obj.Properties.Add("objectsid", sid);
                        obj.Properties.Add("highvalue", false);

                        if (entry.DistinguishedName.ToLower().Contains("domain controllers"))
                        {
                            _entDcs.Enqueue(new GroupMember
                            {
                                MemberType = "computer",
                                MemberName = resolved.BloodHoundDisplay
                            });
                        }

                        ObjectPropertyHelpers.GetProps(entry, resolved, ref obj);
                        GroupHelpers.GetGroupInfo(entry, resolved, domainSid, ref obj);
                        AclHelpers.GetObjectAces(entry, resolved, ref obj);

                        output.Add(new Wrapper <JsonBase>
                        {
                            Item = obj
                        });
                    }
                    else if (resolved.ObjectType == "domain")
                    {
                        var obj = new Domain
                        {
                            Name = resolved.BloodHoundDisplay,
                        };

                        obj.Properties.Add("objectsid", sid);
                        obj.Properties.Add("highvalue", true);

                        ObjectPropertyHelpers.GetProps(entry, resolved, ref obj);
                        AclHelpers.GetObjectAces(entry, resolved, ref obj);
                        ContainerHelpers.ResolveContainer(entry, resolved, ref obj);
                        TrustHelpers.DoTrustEnumeration(resolved, ref obj);

                        output.Add(new Wrapper <JsonBase>
                        {
                            Item = obj
                        });
                    }
                    else if (resolved.ObjectType == "gpo")
                    {
                        var obj = new Gpo
                        {
                            Name = resolved.BloodHoundDisplay,
                            Guid = entry.GetProp("name").Replace("{", "").Replace("}", "")
                        };

                        obj.Properties.Add("highvalue", false);

                        AclHelpers.GetObjectAces(entry, resolved, ref obj);

                        foreach (var a in LocalGroupHelpers.GetGpoMembers(entry, domain))
                        {
                            output.Add(new Wrapper <JsonBase>
                            {
                                Item = a
                            });
                        }

                        output.Add(new Wrapper <JsonBase>
                        {
                            Item = obj
                        });
                    }
                    else if (resolved.ObjectType == "ou")
                    {
                        var obj = new Ou
                        {
                            Guid = new Guid(entry.GetPropBytes("objectguid")).ToString().ToUpper()
                        };

                        obj.Properties.Add("name", resolved.BloodHoundDisplay);
                        obj.Properties.Add("highvalue", false);

                        ContainerHelpers.ResolveContainer(entry, resolved, ref obj);

                        output.Add(new Wrapper <JsonBase>
                        {
                            Item = obj
                        });
                    }
                }

                if (Utils.IsMethodSet(ResolvedCollectionMethod.Session))
                {
                    Console.WriteLine("Doing stealth session enumeration");
                    foreach (var target in SessionHelpers.CollectStealthTargets(domainName))
                    {
                        if (!_utils.PingHost(target.BloodHoundDisplay))
                        {
                            _noPing++;
                            continue;
                        }

                        try
                        {
                            foreach (var session in SessionHelpers.GetNetSessions(target, domainName))
                            {
                                output.Add(new Wrapper <JsonBase>
                                {
                                    Item = session
                                });
                            }
                        }
                        catch (TimeoutException)
                        {
                            _timeouts++;
                        }
                    }
                }

                if (_entDcs.Count > 0)
                {
                    var dObj = _utils.GetForest(domainName);
                    var d    = dObj == null ? domainName : dObj.RootDomain.Name;
                    var n    = $"ENTERPRISE DOMAIN CONTROLLERS@{d}";
                    var obj  = new Group
                    {
                        Name    = n,
                        Members = _entDcs.ToArray()
                    };

                    obj.Properties.Add("domain", d);
                    obj.Properties.Add("objectsid", "S-1-5-9");
                    obj.Properties.Add("highvalue", true);

                    output.Add(new Wrapper <JsonBase>
                    {
                        Item = obj
                    });
                }


                PrintStatus();
                _statusTimer.Stop();

                Console.WriteLine($"Finished stealth enumeration for {domainName} in {_watch.Elapsed}");
                Console.WriteLine($"{_noPing} hosts failed ping. {_timeouts} hosts timedout.");
            }
            output.CompleteAdding();
            Utils.Verbose("Waiting for writer thread to finish");
            writer.Wait();
        }
        public void StartStealthEnumeration()
        {
            var output = new BlockingCollection <Wrapper <OutputBase> >();
            var writer = _options.Uri == null
                ? StartOutputWriter(output)
                : StartRestWriter(output);

            foreach (var domainName in _utils.GetDomainList())
            {
                Console.WriteLine($"Starting stealth enumeration for {domainName}\n");
                var domainSid = _utils.GetDomainSid(domainName);
                var data      = LdapFilter.GetLdapFilter(_options.CollectMethod, _options.ExcludeDC, true);
                switch (_options.CollectMethod)
                {
                case CollectionMethod.ObjectProps:
                    Console.WriteLine("Doing stealth enumeration for object properties");
                    foreach (var entry in _utils.DoSearch(data.Filter, SearchScope.Subtree, data.Properties, domainName))
                    {
                        var        resolved = entry.ResolveAdEntry();
                        OutputBase props;
                        if (resolved.ObjectType.Equals("computer"))
                        {
                            props = ObjectPropertyHelpers.GetComputerProps(entry, resolved);
                        }
                        else
                        {
                            props = ObjectPropertyHelpers.GetUserProps(entry, resolved);
                        }
                        if (props != null)
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = props
                            });
                        }
                    }
                    break;

                case CollectionMethod.Session:
                    Console.WriteLine("Doing stealth enumeration for sessions");
                    foreach (var path in SessionHelpers.CollectStealthTargets(domainName))
                    {
                        var sessions = SessionHelpers.GetNetSessions(path, domainName);
                        foreach (var s in sessions)
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = s
                            });
                        }
                    }
                    break;

                case CollectionMethod.ComputerOnly:
                    Console.WriteLine("Doing stealth enumeration for sessions");
                    foreach (var path in SessionHelpers.CollectStealthTargets(domainName))
                    {
                        var sessions = SessionHelpers.GetNetSessions(path, domainName);
                        foreach (var s in sessions)
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = s
                            });
                        }
                    }

                    Console.WriteLine("Doing stealth enumeration for admins");
                    foreach (var entry in _utils.DoSearch(
                                 data.Filter, SearchScope.Subtree,
                                 data.Properties, domainName))
                    {
                        foreach (var admin in LocalAdminHelpers.GetGpoAdmins(entry, domainName))
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = admin
                            });
                        }
                    }
                    break;

                case CollectionMethod.Default:
                    Console.WriteLine("Doing stealth enumeration for sessions");
                    foreach (var path in SessionHelpers.CollectStealthTargets(domainName))
                    {
                        var sessions = SessionHelpers.GetNetSessions(path, domainName);
                        foreach (var s in sessions)
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = s
                            });
                        }
                    }

                    Console.WriteLine("Doing stealth enumeration for admins");
                    foreach (var entry in _utils.DoSearch(
                                 "(&(objectCategory=groupPolicyContainer)(name=*)(gpcfilesyspath=*))", SearchScope.Subtree,
                                 new[] { "displayname", "name", "gpcfilesyspath" }, domainName))
                    {
                        foreach (var admin in LocalAdminHelpers.GetGpoAdmins(entry, domainName))
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = admin
                            });
                        }
                    }

                    Console.WriteLine("Doing stealth enumeration for groups");
                    foreach (var entry in _utils.DoSearch("(|(memberof=*)(primarygroupid=*))",
                                                          SearchScope.Subtree,
                                                          new[]
                    {
                        "samaccountname", "distinguishedname", "dnshostname", "samaccounttype",
                        "primarygroupid", "memberof", "serviceprincipalname"
                    }, domainName))
                    {
                        var resolvedEntry = entry.ResolveAdEntry();
                        foreach (var group in GroupHelpers.ProcessAdObject(entry, resolvedEntry, domainSid))
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = group
                            });
                        }
                    }
                    break;

                case CollectionMethod.SessionLoop:
                    Console.WriteLine("Doing stealth enumeration for sessions");
                    foreach (var path in SessionHelpers.CollectStealthTargets(domainName))
                    {
                        var sessions = SessionHelpers.GetNetSessions(path, domainName);
                        foreach (var s in sessions)
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = s
                            });
                        }
                    }
                    break;

                case CollectionMethod.LoggedOn:
                    Console.WriteLine("Doing LoggedOn enumeration for stealth targets");
                    foreach (var path in SessionHelpers.CollectStealthTargets(domainName))
                    {
                        var sessions = SessionHelpers.GetNetLoggedOn(path, domainName);
                        foreach (var s in sessions)
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = s
                            });
                        }
                        sessions = SessionHelpers.GetRegistryLoggedOn(path);
                        foreach (var s in sessions)
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = s
                            });
                        }
                    }
                    break;

                case CollectionMethod.Group:
                    Console.WriteLine("Doing stealth enumeration for groups");
                    foreach (var entry in _utils.DoSearch(data.Filter,
                                                          SearchScope.Subtree,
                                                          data.Properties, domainName))
                    {
                        var resolvedEntry = entry.ResolveAdEntry();
                        foreach (var group in GroupHelpers.ProcessAdObject(entry, resolvedEntry, domainSid))
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = group
                            });
                        }
                    }
                    break;

                case CollectionMethod.LocalGroup:
                    //This case will never happen
                    break;

                case CollectionMethod.GPOLocalGroup:
                    Console.WriteLine("Doing stealth enumeration for admins");
                    foreach (var entry in _utils.DoSearch(
                                 data.Filter, SearchScope.Subtree,
                                 data.Properties, domainName))
                    {
                        foreach (var admin in LocalAdminHelpers.GetGpoAdmins(entry, domainName))
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = admin
                            });
                        }
                    }
                    break;

                case CollectionMethod.Trusts:
                    var trusts = DomainTrustEnumeration.DoTrustEnumeration(domainName);
                    foreach (var trust in trusts)
                    {
                        output.Add(new Wrapper <OutputBase> {
                            Item = trust
                        });
                    }
                    break;

                case CollectionMethod.ACL:
                    Console.WriteLine("Doing stealth enumeration for ACLs");
                    foreach (var entry in _utils.DoSearch(
                                 data.Filter,
                                 SearchScope.Subtree,
                                 data.Properties, domainName))
                    {
                        foreach (var acl in AclHelpers.ProcessAdObject(entry, domainName))
                        {
                            output.Add(new Wrapper <OutputBase> {
                                Item = acl
                            });
                        }
                    }
                    break;

                default:
                    throw new ArgumentOutOfRangeException();
                }
                output.CompleteAdding();
                writer.Wait();
                Console.WriteLine($"Finished stealth enumeration for {domainName}");
            }
            if (!_options.CollectMethod.Equals(CollectionMethod.SessionLoop))
            {
                return;
            }
            if (_options.MaxLoopTime != null)
            {
                if (DateTime.Now > _options.LoopEnd)
                {
                    Console.WriteLine("Exiting session loop as LoopEndTime as passed");
                    return;
                }
            }

            Console.WriteLine($"Starting next session run in {_options.LoopTime} minutes");
            new ManualResetEvent(false).WaitOne(_options.LoopTime * 60 * 1000);
            if (_options.MaxLoopTime != null)
            {
                if (DateTime.Now > _options.LoopEnd)
                {
                    Console.WriteLine("Exiting session loop as LoopEndTime as passed");
                    return;
                }
            }
            Console.WriteLine("Starting next enumeration loop");
            StartStealthEnumeration();
        }
示例#4
0
        internal void StartListSessionLoopEnumeration()
        {
            var output = new BlockingCollection <Wrapper <JsonBase> >();
            var writer = StartOutputWriter(output);

            while (true)
            {
                foreach (var domain in _utils.GetDomainList())
                {
                    Extensions.SetPrimaryDomain(domain);
                    _noPing       = 0;
                    _timeouts     = 0;
                    _currentCount = 0;
                    Console.WriteLine($"Starting Enumeration for {domain}");

                    _watch = Stopwatch.StartNew();


                    var input       = new BlockingCollection <Wrapper <SearchResultEntry> >(1000);
                    var taskHandles = new Task[_options.Threads];
                    var ldapData    = LdapFilter.BuildLdapData(_options.ResolvedCollMethods, _options.ExcludeDC, _options.LdapFilter);

                    ContainerHelpers.BuildGpoCache(domain);

                    for (var i = 0; i < _options.Threads; i++)
                    {
                        taskHandles[i] = StartRunner(input, output);
                    }

                    _statusTimer.Start();

                    foreach (var item in _utils.DoWrappedSearch(ldapData.Filter, SearchScope.Subtree, ldapData.Properties,
                                                                domain, _options.Ou))
                    {
                        input.Add(item);
                    }

                    input.CompleteAdding();
                    Utils.Verbose("Waiting for enumeration threads to finish");
                    Task.WaitAll(taskHandles);

                    _statusTimer.Stop();
                    PrintStatus();
                    output.CompleteAdding();
                    _watch.Stop();
                    Console.WriteLine($"Finished enumeration for {domain} in {_watch.Elapsed}");
                    Console.WriteLine($"{_noPing} hosts failed ping. {_timeouts} hosts timedout.");
                    _watch = null;
                }

                if (Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape)
                {
                    Console.WriteLine("User pressed escape, exiting session loop");
                    output.CompleteAdding();
                    writer.Wait();
                    break;
                }

                if (_options.MaxLoopTime != null)
                {
                    if (DateTime.Now > _options.LoopEnd)
                    {
                        Console.WriteLine("Exiting session loop as LoopEndTime has passed.");
                        output.CompleteAdding();
                        writer.Wait();
                        break;
                    }
                }

                Console.WriteLine($"Starting next session run in {_options.LoopDelay} seconds");
                new ManualResetEvent(false).WaitOne(_options.LoopDelay * 1000);

                if (_options.MaxLoopTime != null)
                {
                    if (DateTime.Now > _options.LoopEnd)
                    {
                        Console.WriteLine("Exiting session loop as LoopEndTime has passed.");
                        output.CompleteAdding();
                        writer.Wait();
                        break;
                    }
                }

                if (Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape)
                {
                    Console.WriteLine("User pressed escape, exiting session loop");
                    output.CompleteAdding();
                    writer.Wait();
                    break;
                }

                Console.WriteLine("Starting next session loop");
            }
        }
        public void StartEnumeration()
        {
            //Let's determine what LDAP filter we need first
            var data       = LdapFilter.GetLdapFilter(_options.CollectMethod, _options.ExcludeDC, _options.Stealth);
            var ldapFilter = data.Filter;
            var props      = data.Properties;
            var c          = _options.CollectMethod;


            foreach (var domainName in _utils.GetDomainList())
            {
                _noPing   = 0;
                _timeouts = 0;
                Console.WriteLine($"Starting enumeration for {domainName}");

                _watch            = Stopwatch.StartNew();
                _currentDomain    = domainName;
                _currentDomainSid = _utils.GetDomainSid(domainName);
                _currentCount     = 0;
                var outputQueue = new BlockingCollection <Wrapper <OutputBase> >();

                if (_options.ComputerFile == null)
                {
                    var inputQueue = new BlockingCollection <Wrapper <SearchResultEntry> >(1000);

                    var taskhandles = new Task[_options.Threads];

                    var writer = _options.Uri == null
                        ? StartOutputWriter(outputQueue)
                        : StartRestWriter(outputQueue);

                    if (c.Equals(CollectionMethod.Trusts) ||
                        c.Equals(CollectionMethod.Default))
                    {
                        foreach (var domain in DomainTrustEnumeration.DoTrustEnumeration(domainName))
                        {
                            outputQueue.Add(new Wrapper <OutputBase> {
                                Item = domain
                            });
                        }
                        if (_options.CollectMethod.Equals(CollectionMethod.Trusts))
                        {
                            outputQueue.CompleteAdding();
                            writer.Wait();
                            continue;
                        }
                    }

                    if (c.Equals(CollectionMethod.Container))
                    {
                        foreach (var container in ContainerHelpers.GetContainersForDomain(domainName))
                        {
                            outputQueue.Add(new Wrapper <OutputBase> {
                                Item = container
                            });
                        }
                        if (_options.CollectMethod.Equals(CollectionMethod.Container))
                        {
                            outputQueue.CompleteAdding();
                            writer.Wait();
                            continue;
                        }
                    }

                    for (var i = 0; i < _options.Threads; i++)
                    {
                        taskhandles[i] = StartRunner(inputQueue, outputQueue);
                    }

                    _statusTimer.Start();

                    IEnumerable <Wrapper <SearchResultEntry> > items;

                    if ((c.Equals(CollectionMethod.ComputerOnly) || c.Equals(CollectionMethod.Session) ||
                         c.Equals(CollectionMethod.LocalGroup) || c.Equals(CollectionMethod.LoggedOn)) &&
                        _options.Ou != null)
                    {
                        items = _utils.DoWrappedSearch(ldapFilter, SearchScope.Subtree, props, domainName, _options.Ou);
                    }
                    else
                    {
                        items = _utils.DoWrappedSearch(ldapFilter, SearchScope.Subtree, props, domainName);
                    }

                    foreach (var item in items)
                    {
                        inputQueue.Add(item);
                    }

                    inputQueue.CompleteAdding();
                    Utils.Verbose("Waiting for enumeration threads to finish");
                    Task.WaitAll(taskhandles);

                    _statusTimer.Stop();

                    if (_options.CollectMethod.Equals(CollectionMethod.ACL))
                    {
                        foreach (var a in AclHelpers.GetSyncers())
                        {
                            outputQueue.Add(new Wrapper <OutputBase> {
                                Item = a
                            });
                        }
                        AclHelpers.ClearSyncers();
                    }
                    PrintStatus();
                    outputQueue.CompleteAdding();
                    Utils.Verbose("Waiting for writer thread to finish");
                    writer.Wait();
                    _watch.Stop();
                    Console.WriteLine($"Finished enumeration for {domainName} in {_watch.Elapsed}");
                    Console.WriteLine($"{_noPing} hosts failed ping. {_timeouts} hosts timedout.");
                    _watch = null;
                }
                else
                {
                    var inputQueue = new BlockingCollection <Wrapper <string> >(1000);

                    var taskhandles = new Task[_options.Threads];

                    var writer = _options.Uri == null?StartOutputWriter(outputQueue) : StartRestWriter(outputQueue);

                    for (var i = 0; i < _options.Threads; i++)
                    {
                        taskhandles[i] = StartCompListRunner(inputQueue, outputQueue);
                    }

                    _statusTimer.Start();

                    using (var reader = new StreamReader(_options.ComputerFile))
                    {
                        string line;
                        while ((line = reader.ReadLine()) != null)
                        {
                            inputQueue.Add(new Wrapper <string> {
                                Item = line
                            });
                        }
                        inputQueue.CompleteAdding();
                    }
                    Utils.Verbose("Waiting for enumeration threads to finish");
                    Task.WaitAll(taskhandles);

                    _statusTimer.Stop();
                    PrintStatus();
                    outputQueue.CompleteAdding();
                    Utils.Verbose("Waiting for writer thread to finish");
                    writer.Wait();
                    _watch.Stop();
                    Console.WriteLine($"Finished enumeration for {domainName} in {_watch.Elapsed}");
                    Console.WriteLine($"{_noPing} hosts failed ping. {_timeouts} hosts timedout.");
                    _watch = null;
                }
            }

            if (!_options.CollectMethod.Equals(CollectionMethod.SessionLoop))
            {
                return;
            }
            if (_options.MaxLoopTime != null)
            {
                if (DateTime.Now > _options.LoopEnd)
                {
                    Console.WriteLine("Exiting session loop as LoopEndTime as passed");
                    return;
                }
            }

            Console.WriteLine($"Starting next session run in {_options.LoopTime} minutes");
            new ManualResetEvent(false).WaitOne(_options.LoopTime * 60 * 1000);
            if (_options.MaxLoopTime != null)
            {
                if (DateTime.Now > _options.LoopEnd)
                {
                    Console.WriteLine("Exiting session loop as LoopEndTime as passed");
                    return;
                }
            }
            Console.WriteLine("Starting next enumeration loop");
            StartEnumeration();
        }