public void ValidateIndexedFieldReference()
{
KqlNode node = new KqlNode();
// Get the sample data for 1116 AntiMalware
var path = Assembly.GetExecutingAssembly().Location;
var directory = Path.GetDirectoryName(path);
string eventXmlOf1116AntiMalware = File.ReadAllText(Path.Combine(directory, "ExampleEventXml", "1116_AntiMalware.xml"));
string comment =
"/\'DDID 543: SIM-00035: GLOBAL - 1116-1119 - Microsoft Antimalware\', folder = @\'DetectionFunctionBuildout/WEC/Production/Global\')";
string query =
"cluster(\"CDOC\").database(\"WEC\").SecurityLog\r\n | where Provider == \"Microsoft Antimalware\" and EventId in (1116, 1117, 1118, 1119)\r\n | extend FilePath = EventData.[\"22\"], SourceProcessName = EventData.[\"19\"], SourceUserName = EventData.[\"20\"], ThreatName = EventData.[\"08\"] \r\n | where not(ThreatName endswith \"EICAR_Test_File\" and Computer startswith \"WU2SGRPVT\")\r\n\t| where not(ThreatName == \"Trojan:Win32/Peals.F!cl\")\r\n\t| where not(SourceProcessName contains \":\\\\data\\\\Perf\\\\\" or FilePath contains \":\\\\data\\\\Perf\\\\\")\r\n | where not((FilePath contains \"C:\\\\Users\\\\L4Test\" or FilePath contains \"D:\\\\Users\\\\L4Test\") and SourceUserName startswith \"L4TestUser\")\r\n | where not(FilePath contains \"NGFMuploads\" and Computer in (\"CO1MSSDTMLFS11.phx.gbl\", \"CO1MSSDTMLFS12.phx.gbl\", \"CO1MSSDTMLFS13.phx.gbl\", \"CO1MSSDTMLFS14.phx.gbl\", \"DB3MSSDTMLFS11.phx.gbl\", \"DB3MSSDTMLFS12.phx.gbl\", \"DB3MSSDTMLFS13.phx.gbl\", \"DB3MSSDTMLFS14.phx.gbl\", \"SG2MSSDTMLFS11.phx.gbl\", \"SG2MSSDTMLFS12.phx.gbl\", \"SG2MSSDTMLFS13.phx.gbl\", \"SG2MSSDTMLFS14.phx.gbl\"))\r\n | where not(FilePath startswith \"file:_D:\\\\http\\\\security\\\\encyclopedia\\\\en-us\\\\entries\\\\\" or FilePath startswith \"file:_E:\\\\Services\\\\HostIDS\\\\\" or FilePath startswith \"file:_E:\\\\AzureMAStore\\\\\" or FilePath startswith \"file:_E:\\\\Services\\\\WLS_Colorado\\\\\" or FilePath startswith \"file:_C:\\\\Windows\\\\System32\\\\config\\\\systemprofile\\\\AppData\\\\Local\\\\Microsoft\\\\Windows\\\\\")\r\n | where not(SourceProcessName endswith \"agent\\\\MonAgentCore.exe\" or SourceProcessName endswith \"service\\\\MonAgentCore.exe\")\r\n | where not((FilePath contains \":\\\\Temp\\\\Website\\\\\" and Computer contains \"MSDN\") or FilePath contains \"\\\\Users\\\\YarnppNMUser\\\\AppData\\\\Local\\\\Temp\\\\\")\r\n";
List<KqlQuery> newDetections = new List<KqlQuery>();
newDetections.Add(new KqlQuery
{
Comment = comment,
Query = query
});
node.AddKqlQueryList(newDetections, true);
// Subscribe to the sucessful detections.
var list = new List<object>();
node.Subscribe(evt => { list.Add(evt); });
// Add the detections.
var eventDynamic = EvtxExtensions.Deserialize(eventXmlOf1116AntiMalware);
node.OnNext(eventDynamic);
}
public void DetectionInfoQueries()
{
KqlNode node = new KqlNode();
// deserialize JSON to the runtime type, and iterate.
var path = Assembly.GetExecutingAssembly().Location;
var directory = Path.GetDirectoryName(path);
List<KqlQuery> newDetectionInfos = new List<KqlQuery>();
newDetectionInfos.Add(new KqlQuery
{
Comment = "// GLOBAL - 1102 - Audit Log Cleared - SIM-00014",
Query =
"SecurityLog | where EventId == 1102 | extend SubjectUserName = EventData.SubjectUserName, SubjectDomainName = EventData.SubjectDomainName | project TimeCreated, Computer, SubjectUserName, SubjectDomainName"
});
node.AddKqlQueryList(newDetectionInfos, true);
// Subscribe to the sucessful detections.
var list = new List<object>();
node.Subscribe(evt => { list.Add(evt); });
string eventXmlOf1102 =
"<Event xmlns='http://schemas.microsoft.com/win/2004/08/events/event' xml:lang='en-US'><System><Provider Name='Microsoft-Windows-Eventlog' Guid='{fc65ddd8-d6ef-4962-83d5-6e5cfe9ce148}'/><EventID>1102</EventID><Version>0</Version><Level>4</Level><Task>104</Task><Opcode>0</Opcode><Keywords>0x4020000000000000</Keywords><TimeCreated SystemTime='2017-08-03T17:11:29.255592600Z'/><EventRecordID>36837151</EventRecordID><Correlation/><Execution ProcessID='996' ThreadID='11180'/><Channel>Security</Channel><Computer>GFTVMHostDev.redmond.corp.microsoft.com</Computer><Security/></System><UserData><LogFileCleared xmlns='http://manifests.microsoft.com/win/2004/08/windows/eventlog'><SubjectUserSid>S-1-5-21-2127521184-1604012920-1887927527-9916173</SubjectUserSid><SubjectUserName>rbiles</SubjectUserName><SubjectDomainName>REDMOND</SubjectDomainName><SubjectLogonId>0x34d1b1eb</SubjectLogonId></LogFileCleared></UserData></Event>";
// Add the detections.
var eventDynamic = EvtxExtensions.Deserialize(eventXmlOf1102);
node.OnNext(eventDynamic);
}
public void ProjectExtendValidation()
{
KqlNode node = new KqlNode();
// Get the sample data for 4688 Process Create
var path = Assembly.GetExecutingAssembly().Location;
var directory = Path.GetDirectoryName(path);
string eventXmlOf4688 = File.ReadAllText(Path.Combine(directory, "ExampleEventXml", "Sample4688.xml"));
List <KqlQuery> newDetections = new List <KqlQuery>();
newDetections.Add(new KqlQuery
{
Comment = "This works",
Query = "Security | where EventId == 4688 | extend ProcessName = EventData.NewProcessName | extend UserName = EventData.SubjectUserName | project ProcessName,UserName"
});
newDetections.Add(new KqlQuery
{
Comment = "This also should work",
Query = "Security | where EventId == 4688 | project ProcessName = EventData.NewProcessName, UserName = EventData.SubjectUserName"
});
node.AddKqlQueryList(newDetections, true);
// Subscribe to the sucessful detections.
var results = new List <IDictionary <string, object> >();
node.Subscribe(evt =>
{
results.Add(evt.Output);
});
// Add the detections.
var eventDynamic = EvtxExtensions.Deserialize(eventXmlOf4688);
node.OnNext((IDictionary <string, object>)eventDynamic);
Assert.IsTrue(results.Count == 2);
// Make sure BOTH return the same values
var x = results.ToArray();
string processNameValue = "C:\\Windows\\System32\\backgroundTaskHost.exe";
string userNameValue = "RUSSELLHPDEV$";
Assert.AreEqual(x[0]["ProcessName"], processNameValue);
Assert.AreEqual(x[0]["UserName"], userNameValue);
Assert.AreEqual(x[1]["ProcessName"], processNameValue);
Assert.AreEqual(x[1]["UserName"], userNameValue);
}
public void ProjectExtendChainedValidation()
{
KqlNode node = new KqlNode();
// Get the sample data for 4688 Process Create
var path = Assembly.GetExecutingAssembly().Location;
var directory = Path.GetDirectoryName(path);
string eventXmlOf4688 = File.ReadAllText(Path.Combine(directory, "ExampleEventXml", "Sample4688.xml"));
List <KqlQuery> newDetections = new List <KqlQuery>();
newDetections.Add(new KqlQuery
{
Comment = "An extended projected ordeal...",
Query = "Security " +
"| where EventId == 4688 " +
"| extend processName = EventData.NewProcessName" +
"| project newName = processName " +
"| extend extendedName = newName" +
"| project finalProcessNameResult = extendedName"
});
node.AddKqlQueryList(newDetections, true);
// Subscribe to the sucessful detections.
var results = new List <IDictionary <string, object> >();
node.Subscribe(evt =>
{
results.Add(evt.Output);
});
// Add the detections.
var eventDynamic = EvtxExtensions.Deserialize(eventXmlOf4688);
node.OnNext(eventDynamic);
Assert.IsTrue(results.Count == 1);
// Make sure BOTH return the same values
var x = results.ToArray();
string processNameValue = "C:\\Windows\\System32\\backgroundTaskHost.exe";
Assert.AreEqual(x[0]["finalProcessNameResult"], processNameValue);
}
public void FunctionQueries()
{
KqlNode node = new KqlNode();
// deserialize JSON to the runtime type, and iterate.
var path = Assembly.GetExecutingAssembly().Location;
var directory = Path.GetDirectoryName(path);
node.AddCslFile(Path.Combine(directory, "KqlFunctionTestFiles", "Rule_4720_UsrAcctCreation_WecExtract.csl"));
Debug.Assert(GlobalFunctions.KqlFunctions.Count == 3, "Rx.Kql FILTER Functions are not loading correctly from CSL files!");
Debug.Assert(node.KqlQueryList.Count > 0 || node.FailedKqlQueryList.Count == 0, "Kql query failed to load. There is an Rx.Kql parsing bug!");
string evt4720 =
"<Event xmlns=\'http://schemas.microsoft.com/win/2004/08/events/event\' xml:lang=\'en-US\'><System><Provider Name=\'Microsoft-Windows-Security-Auditing\' Guid=\'{54849625-5478-4994-A5BA-3E3B0328C30D}\'/><EventID>4720</EventID><Version>0</Version><Level>0</Level><Task>13824</Task><Opcode>0</Opcode><Keywords>0x8020000000000000</Keywords><TimeCreated SystemTime=\'2017-08-31T19:38:21.509585500Z\'/><EventRecordID>2079336</EventRecordID><Correlation/><Execution ProcessID=\'2092\' ThreadID=\'42656\'/><Channel>Security</Channel><Computer>SN2SCH101140124.phx.gbl</Computer><Security/></System><EventData><Data Name=\'TargetUserName\'>QTU-bs_el_idsv-7</Data><Data Name=\'TargetDomainName\'>SN2SCH101140124</Data><Data Name=\'TargetSid\'>S-1-5-21-1266794097-2621680504-1140025688-1442</Data><Data Name=\'SubjectUserSid\'>S-1-5-21-606747145-1563985344-839522115-25776942</Data><Data Name=\'SubjectUserName\'>_qcloud1</Data><Data Name=\'SubjectDomainName\'>PHX</Data><Data Name=\'SubjectLogonId\'>0x21a3d239e</Data><Data Name=\'PrivilegeList\'>-</Data><Data Name=\'SamAccountName\'>QTU-bs_el_idsv-7</Data><Data Name=\'DisplayName\'>%%1793</Data><Data Name=\'UserPrincipalName\'>-</Data><Data Name=\'HomeDirectory\'>%%1793</Data><Data Name=\'HomePath\'>%%1793</Data><Data Name=\'ScriptPath\'>%%1793</Data><Data Name=\'ProfilePath\'>%%1793</Data><Data Name=\'UserWorkstations\'>%%1793</Data><Data Name=\'PasswordLastSet\'>%%1794</Data><Data Name=\'AccountExpires\'>%%1794</Data><Data Name=\'PrimaryGroupId\'>513</Data><Data Name=\'AllowedToDelegateTo\'>-</Data><Data Name=\'OldUacValue\'>0x0</Data><Data Name=\'NewUacValue\'>0x15</Data><Data Name=\'UserAccountControl\'>\r\n\t\t%%2080\r\n\t\t%%2082\r\n\t\t%%2084</Data><Data Name=\'UserParameters\'>%%1793</Data><Data Name=\'SidHistory\'>-</Data><Data Name=\'LogonHours\'>%%1797</Data></EventData></Event>";
dynamic eventDynamic = EvtxExtensions.Deserialize(evt4720);
// Subscribe to the sucessful detections.
var list = new List<object>();
node.Subscribe(evt => { list.Add(evt); });
node.OnNext((IDictionary<string, object>) eventDynamic);
}
public void ProjectWithConstants()
{
KqlNode node = new KqlNode();
// Get the sample data for 4688 Process Create
var path = Assembly.GetExecutingAssembly().Location;
var directory = Path.GetDirectoryName(path);
string eventXmlOf4688 = File.ReadAllText(Path.Combine(directory, "ExampleEventXml", "Sample4688.xml"));
List <KqlQuery> newDetections = new List <KqlQuery>();
newDetections.Add(new KqlQuery
{
Comment = "An extended project with constants...",
Query = "Security " +
"| where EventId == 4688 " +
"| extend processName = EventData.NewProcessName" +
"| project Computer, TimeCreated, A = 1, B = true, \"two\", \"two\", \"two\", \"two\", \"five\""
});
newDetections.Add(new KqlQuery
{
Comment = "An project with constants and a function...",
Query = "Security " +
"| where EventId == 4688 " +
"| extend processName = EventData.NewProcessName" +
"| project Computer, TimeCreated, \"one\", \"two\", \"three\", \"four\", \"five\", X1 = tolower(\"SIX\")"
});
newDetections.Add(new KqlQuery
{
Comment = "An project with only constants...",
Query = "Security " +
"| where EventId == 4688 " +
"| extend processName = EventData.NewProcessName" +
"| project \"one\", \"two\", \"three\", 1024"
});
node.AddKqlQueryList(newDetections, true);
// Subscribe to the sucessful detections.
var results = new List <IDictionary <string, object> >();
node.Subscribe(evt => { results.Add(evt.Output); });
// Add the detections.
var eventDynamic = EvtxExtensions.Deserialize(eventXmlOf4688);
node.OnNext(eventDynamic);
Assert.IsTrue(results.Count == 3);
// Make sure BOTH return the same values
var x = results.ToArray();
string processNameValue = "C:\\Windows\\System32\\backgroundTaskHost.exe";
Assert.AreEqual(x[0]["A"], 1L);
Assert.AreEqual(x[0]["B"], true);
Assert.AreEqual(x[0]["Column2"], "two");
Assert.AreEqual(x[0]["Column4"], "two");
Assert.AreEqual(x[0]["Column5"], "five");
Assert.AreEqual(x[1]["Computer"], "RussellHPDev.redmond.corp.microsoft.com");
Assert.AreEqual(x[1]["Column1"], "one");
Assert.AreEqual(x[1]["Column2"], "two");
Assert.AreEqual(x[1]["Column3"], "three");
Assert.AreEqual(x[1]["Column4"], "four");
Assert.AreEqual(x[1]["Column5"], "five");
Assert.AreEqual(x[1]["X1"], "six");
Assert.AreEqual(x[2]["Column1"], "one");
Assert.AreEqual(x[2]["Column2"], "two");
Assert.AreEqual(x[2]["Column3"], "three");
Assert.AreEqual(x[2]["Column4"], 1024L);
}
