EVID 6273, 6274 : Network Policy Server Messages (Security)

Event Details

Event Type	Audit Network Policy Server
Event Description	6273 : Network Policy Server denied access to a user. 6274 : Network Policy Server discarded the request for a user.
Event IDs	6273, 6274

Log Fields and Parsing

This section details the log fields available in this log message type, along with values parsed for both LogRhythm Default and LogRhythm Default v2.0 policies. A value of "N/A" (not applicable) means that there is no value parsed for a specified log field.

Log Field	LogRhythm Default	LogRhythm Default v2.0
Provider	N/A	N/A
EventID	<vmid>	<vmid>
Version	N/A	N/A
Level	<severity>	<severity>
Task	N/A	<vendorinfo>
Opcode	N/A	N/A
Keywords	<tag1>	<result>
TimeCreated	N/A	N/A
EventRecordID	N/A	N/A
Correlation	N/A	N/A
Execution	N/A	N/A
Channel	N/A	N/A
Computer	N/A	<dname>
SubjectUserSid	N/A	N/A
SubjectUserName	<account>	<login>
SubjectDomainName	<domain>	<domainorigin>
FullyQualifiedSubjectUserName	N/A	N/A
SubjectMachineSID	N/A	N/A
SubjectMachineName	N/A	N/A
FullyQualifiedSubjectMachineName	N/A	N/A
CalledStationID	<dmac>	N/A
CallingStationID	<sip>, <smac>	N/A
NASIPv4Address	N/A	<dip>
NASIPv6Address	N/A	<dip>
NASIdentifier	N/A	N/A
NASPortType	N/A	N/A
NASPort	N/A	N/A
ClientName	<login>	<sname>
ClientIPAddress	<dip>	<sip>
ProxyPolicyName	N/A	N/A
NetworkPolicyName	<policy>	<policy>
AuthenticationProvider	N/A	N/A
AuthenticationServer	<object>	N/A
AuthenticationType	<sessiontype>	N/A
EAPType	N/A	N/A
AccountSessionIdentifier	N/A	N/A
ReasonCode	N/A	<responsecode>
Reason	<reason>, <tag2>	<reason>
LoggingResult	N/A	N/A
Eventdata	<vendorinfo>	N/A

Log Processing Settings

This section details log processing changes made from the LogRhythm Default policy to LogRhythm Default v2.0. In some cases, base rules are broken down into sub-rules to appropriately parse log message types by their event types.

LogRhythm Default

Regex ID	Rule Name	Rule Type	Common Event	Classification
1001061	EVID 6273, 6274 : Network Policy Server Messages	Base Rule	Authentication Failure Activity	Authentication Failure
	EVID 6274 : Authentication Request Discarded	Sub Rule	Authentication Failure Activity	Authentication Failure
	EVID 6273 : User Credentials Mismatch	Sub Rule	User Logon Failure : Bad Password	Authentication Failure
	EVID 6273 : User Account Does Not Exist	Sub Rule	User Logon Failure : Bad Username	Authentication Failure
	Authentication	Sub Rule	Authentication Activity	Authentication Success
	EVID 6273 : Unknown Username Or Password	Sub Rule	User Logon Failure	Authentication Failure
	EVID 6273 : Too Many Failed Auth Attempts	Sub Rule	User Logon Failure : Account Locked Out	Authentication Failure

LogRhythm Default v2.0

Regex ID	Rule Name	Rule Type	Common Event	Classification
1011222	V 2.0 : Network Policy Server Events	Base Rule	General Audit Message	Other Audit
	V 2.0 : EVID 6272 : NPS - Access Granted To User	Sub Rule	User Logon	Authentication Success
	V 2.0 : EVID 6273 : NPS - Access Denied To User	Sub Rule	User Logon Failure	Authentication Failure
	V 2.0 : EVID 6274 : NPS - Access Request Discarded	Sub Rule	Bad Request	Warning
	V 2.0 : EVID 6278 : NPS- Full Acces Granted To Usr	Sub Rule	User Logon	Authentication Success