Active Directory Logs_Event ID & Description

Event ID	Severity	Description	Category
1102	Medium to High	The audit log was cleared
4608	Low	Windows is starting up.	Security State Change
4609	Low	Windows is shutting down.	Security State Change
4610	Low	An authentication package has been loaded by the Local Security Authority.	Security System Extension
4611	Low	A trusted logon process has been registered with the Local Security Authority.	Security System Extension
4612	Low	Internal resources allocated for the queuing of audit messages have been exhausted, leading to the loss of some audits.	System Integrity
4614	Low	A notification package has been loaded by the Security Account Manager.	Security System Extension
4615	Low	Invalid use of LPC port.	System Integrity
4616	Low	The system time was changed.	Security State Change
4618	High	A monitored security event pattern has occurred.	System Integrity
4621	Medium	Administrator recovered system from CrashOnAuditFail. Users who are not administrators will now be allowed to log on. Some auditable activity might not have been recorded.	Security State Change
4622	Low	A security package has been loaded by the Local Security Authority.	Security System Extension
4624	Low	An account was successfully logged on.	Logon
4625	Low	An account failed to log on.	logon
4634	Low	An account was logged off.	Logoff
4646	Low	IKE DoS-prevention mode started.	Ipsec Main Mode
4647	Low	User initiated logoff.	Logoff
4648	Low	A logon was attempted using explicit credentials.	Logon
4649	High	A replay attack was detected. May be a harmless false positive due to misconfiguration error.	Other Account Logon Events
4650	Low	An IPsec Main Mode security association was established. Extended Mode was not enabled. Certificate authentication was not used.	Ipsec Main Mode
4651	Low	An IPsec Main Mode security association was established. Extended Mode was not enabled. A certificate was used for authentication.	Ipsec Main Mode
4652	Low	An IPsec Main Mode negotiation failed.	Ipsec Main Mode
4653	Low	An IPsec Main Mode negotiation failed.	Ipsec Main Mode
4654	Low	An IPsec Quick Mode negotiation failed.
4655	Low	An IPsec Main Mode security association ended.	Ipsec Main Mode
4656	Low	A handle to an object was requested.	Handle Manipulation
4657	Low	A registry value was modified.	Registry
4658	Low	The handle to an object was closed.	Handle Manipulation
4659	Low	A handle to an object was requested with intent to delete.	Kernal Object
4660	Low	An object was deleted.	Kernal Object
4661	Low	A handle to an object was requested.	Kernal Object
4662	Low	An operation was performed on an object.	Directory Service Access
4663	Low	An attempt was made to access an object.	Kernal Object
4664	Low	An attempt was made to create a hard link.	File System
4665	Low	An attempt was made to create an application client context.	Application Generated
4666	Low	An application attempted an operation:	Application Generated
4667	Low	An application client context was deleted.	Application Generated
4668	Low	An application was initialized.	Application Generated
4670	Low	Permissions on an object were changed.	Other Policy Change Events
4671	Low	An application attempted to access a blocked ordinal through the TBS.	Other Object Access Events
4672	Low	Special privileges assigned to new logon.	Sensitive Privilege Use
4673	Low	A privileged service was called.	Sensitive Privilege Use
4674	Low	An operation was attempted on a privileged object.	Sensitive Privilege Use
4675	Medium	SIDs were filtered.	Logon
4688	Low	A new process has been created.	Process Creation
4689	Low	A process has exited.	Process Termination
4690	Low	An attempt was made to duplicate a handle to an object.	Handle Manipulation
4691	Low	Indirect access to an object was requested.	Other Object Access Events
4692	Medium	Backup of data protection master key was attempted.	DPAPI Activity
4693	Medium	Recovery of data protection master key was attempted.	DPAPI Activity
4694	Low	Protection of auditable protected data was attempted.	DPAPI Activity
4695	Low	Unprotection of auditable protected data was attempted.	DPAPI Activity
4696	Low	A primary token was assigned to process.	Process Creation
4697	Low	Attempt to install a service	Security System Extension
4698	Low	A scheduled task was created.	Other Object Access Events
4699	Low	A scheduled task was deleted.	Other Object Access Events
4700	Low	A scheduled task was enabled.	Other Object Access Events
4701	Low	A scheduled task was disabled.	Other Object Access Events
4702	Low	A scheduled task was updated.	Other Object Access Events
4704	Low	A user right was assigned.	Authorization Police Change
4705	Low	A user right was removed.	Authorization Police Change
4706	Medium	A new trust was created to a domain.	Authorization Police Change
4707	Low	A trust to a domain was removed.	Authorization Police Change
4709	Low	IPsec Services was started.	Filtering Platform Policy Change
4710	Low	IPsec Services was disabled.	Filtering Platform Policy Change
4711	Low	May contain any one of the following: PAStore Engine applied locally cached copy of Active Directory storage IPsec policy on the computer. PAStore Engine applied Active Directory storage IPsec policy on the computer. PAStore Engine applied local registry storage IPsec policy on the computer. PAStore Engine failed to apply locally cached copy of Active Directory storage IPsec policy on the computer. PAStore Engine failed to apply Active Directory storage IPsec policy on the computer. PAStore Engine failed to apply local registry storage IPsec policy on the computer. PAStore Engine failed to apply some rules of the active IPsec policy on the computer. PAStore Engine failed to load directory storage IPsec policy on the computer. PAStore Engine loaded directory storage IPsec policy on the computer. PAStore Engine failed to load local storage IPsec policy on the computer. PAStore Engine loaded local storage IPsec policy on the computer.PAStore Engine polled for changes to the active IPsec policy and detected no changes.	Filtering Platform Policy Change
4712	Low	IPsec Services encountered a potentially serious failure.
4713	Medium	Kerberos policy was changed.	Authentication Policy Change
4714	Medium	Encrypted data recovery policy was changed.	Authorization Police Change
4715	Medium	The audit policy (SACL) on an object was changed.	Audit Policy Change
4716	Medium	Trusted domain information was modified.	Authentication Policy Change
4717	Low	System security access was granted to an account.	Authentication Policy Change
4718	Low	System security access was removed from an account.	Authentication Policy Change
4719	High	System audit policy was changed.	Audit Policy Change
4720	Low	A user account was created.	User Account Management
4722	Low	A user account was enabled.	User Account Management
4723	Low	An attempt was made to change an account's password.	User Account Management
4724	Medium	An attempt was made to reset an account's password.	User Account Management
4725	Low	A user account was disabled.	User Account Management
4726	Low	A user account was deleted.	User Account Management
4727	Medium	A security-enabled global group was created.	Security Group Management
4728	Low	A member was added to a security-enabled global group.	Security Group Management
4729	Low	A member was removed from a security-enabled global group.	Security Group Management
4730	Low	A security-enabled global group was deleted.	Security Group Management
4731	Low	A security-enabled local group was created.	Security Group Management
4732	Low	A member was added to a security-enabled local group.	Security Group Management
4733	Low	A member was removed from a security-enabled local group.	Security Group Management
4734	Low	A security-enabled local group was deleted.	Security Group Management
4735	Medium	A security-enabled local group was changed.	Security Group Management
4737	Medium	A security-enabled global group was changed.	Security Group Management
4738	Low	A user account was changed.	User Account Management
4739	Medium	Domain Policy was changed.	Authentication Policy Change
4740	Low	A user account was locked out.	User Account Management
4741	Low	A computer account was changed.	Computer Account Management
4742	Low	A computer account was changed.	Computer Account Management
4743	Low	A computer account was deleted.	Computer Account Management
4744	Low	A security-disabled local group was created.	Distribution Group Management
4745	Low	A security-disabled local group was changed.	Distribution Group Management
4746	Low	A member was added to a security-disabled local group.	Distribution Group Management
4747	Low	A member was removed from a security-disabled local group.	Distribution Group Management
4748	Low	A security-disabled local group was deleted.	Distribution Group Management
4749	Low	A security-disabled global group was created.	Distribution Group Management
4750	Low	A security-disabled global group was changed.	Distribution Group Management
4751	Low	A member was added to a security-disabled global group.	Distribution Group Management
4752	Low	A member was removed from a security-disabled global group.	Distribution Group Management
4753	Low	A security-disabled global group was deleted.	Distribution Group Management
4754	Medium	A security-enabled universal group was created.	Security Group Management
4755	Medium	A security-enabled universal group was changed.	Security Group Management
4756	Low	A member was added to a security-enabled universal group.	Security Group Management
4757	Low	A member was removed from a security-enabled universal group.	Security Group Management
4758	Low	A security-enabled universal group was deleted.	Security Group Management
4759	Low	A security-disabled universal group was created.	Distribution Group Management
4760	Low	A security-disabled universal group was changed.	Distribution Group Management
4761	Low	A member was added to a security-disabled universal group.	Distribution Group Management
4762	Low	A member was removed from a security-disabled universal group.	Distribution Group Management
4764	Medium	A group's type was changed.	Security Group Management
4765	High	SID History was added to an account.	User Account Management
4766	High	An attempt to add SID History to an account failed.	User Account Management
4767	Low	A user account was unlocked.	User Account Management
4768	Low	A Kerberos authentication ticket (TGT) was requested.	Audit Kerberos Authentication Service
4769	Low	A Kerberos service ticket was requested.	Audit Kerberos Service Ticket Operations
4770	Low	A Kerberos service ticket was renewed.	Audit Kerberos Service Ticket Operations
4771	Low	Kerberos pre-authentication failed.	Audit Kerberos Authentication Service
4772	Low	A Kerberos authentication ticket request failed.	Audit Kerberos Authentication Service
4774	Low	An account was mapped for logon.	Audit Credential Validation
4775	Low	An account could not be mapped for logon.	Audit Credential Validation
4776	Low	The domain controller attempted to validate the credentials for an account.	Audit Credential Validation
4777	Low	The domain controller failed to validate the credentials for an account.	Audit Credential Validation
4778	Low	A session was reconnected to a Window Station.	Other Account Logon Events
4779	Low	A session was disconnected from a Window Station.	Other Account Logon Events
4780	Medium	The ACL was set on accounts which are members of administrators groups.	User Account Management
4781	Low	The name of an account was changed:	User Account Management
4782	Low	The password hash an account was accessed.	Other Account Management Events
4783	Low	A basic application group was created.	Application Group Management
4784	Low	A basic application group was changed.	Application Group Management
4785	Low	A member was added to a basic application group.	Application Group Management
4786	Low	A member was removed from a basic application group.	Application Group Management
4787	Low	A nonmember was added to a basic application group.	Application Group Management
4788	Low	A nonmember was removed from a basic application group.	Application Group Management
4789	Low	A basic application group was deleted.	Application Group Management
4790	Low	An LDAP query group was created.	Application Group Management
4793	Low	The Password Policy Checking API was called.	Other Account Management Events
4794	High	An attempt was made to set the Directory Services Restore Mode.	User Account Management
4800	Low	The workstation was locked.	Other Account Logon Events
4801	Low	The workstation was unlocked.	Other Account Logon Events
4802	Low	The screen saver was invoked.	Other Account Logon Events
4803	Low	The screen saver was dismissed.	Other Account Logon Events
4816	Medium	RPC detected an integrity violation while decrypting an incoming message.	System Integrity
4817		Auditing settings on object were changed.	Audit Policy Change
4864	Low	A namespace collision was detected.	Authentication Policy Change
4865	Medium	A trusted forest information entry was added.	Authentication Policy Change
4866	Medium	A trusted forest information entry was removed.	Authentication Policy Change
4867	Medium	A trusted forest information entry was modified.	Authentication Policy Change
4868	Medium	The certificate manager denied a pending certificate request.	Certification Services
4869	Low	Certificate Services received a resubmitted certificate request.	Certification Services
4870	Medium	Certificate Services revoked a certificate.	Certification Services
4871	Low	Certificate Services received a request to publish the certificate revocation list (CRL).	Certification Services
4872	Low	Certificate Services published the certificate revocation list (CRL).	Certification Services
4873	Low	A certificate request extension changed.	Certification Services
4874	Low	One or more certificate request attributes changed.	Certification Services
4875	Low	Certificate Services received a request to shut down.	Certification Services
4876	Low	Certificate Services backup started.	Certification Services
4877	Low	Certificate Services backup completed.	Certification Services
4878	Low	Certificate Services restore started.	Certification Services
4879	Low	Certificate Services restore completed.	Certification Services
4880	Low	Certificate Services started.	Certification Services
4881	Low	Certificate Services stopped.	Certification Services
4882	Medium	The security permissions for Certificate Services changed.	Certification Services
4883	Low	Certificate Services retrieved an archived key.	Certification Services
4884	Low	Certificate Services imported a certificate into its database.	Certification Services
4885	Medium	The audit filter for Certificate Services changed.	Certification Services
4886	Low	Certificate Services received a certificate request.	Certification Services
4887	Low	Certificate Services approved a certificate request and issued a certificate.	Certification Services
4888	Low	Certificate Services denied a certificate request.	Certification Services
4889	Low	Certificate Services set the status of a certificate request to pending.	Certification Services
4890	Medium	The certificate manager settings for Certificate Services changed.	Certification Services
4891	Low	A configuration entry changed in Certificate Services.	Certification Services
4892	Medium	A property of Certificate Services changed.	Certification Services
4893	Low	Certificate Services archived a key.	Certification Services
4894	Low	Certificate Services imported and archived a key.	Certification Services
4895	Low	Certificate Services published the CA certificate to Active Directory Domain Services.	Certification Services
4896	Medium	One or more rows have been deleted from the certificate database.	Certification Services
4897	High	Role separation enabled:	Certification Services
4898	Low	Certificate Services loaded a template.	Certification Services
4902	Low	The Per-user audit policy table was created.	Audit Policy Change
4904	Low	An attempt was made to register a security event source.	Audit Policy Change
4905	Low	An attempt was made to unregister a security event source.	Audit Policy Change
4906	Medium	The CrashOnAuditFail value has changed.	Audit Policy Change
4907	Medium	Auditing settings on object were changed.	Audit Policy Change
4908	Medium	Special Groups Logon table modified.	Audit Policy Change
4909	Low	The local policy settings for the TBS were changed.	Other Policy Change Events
4910	Low	The Group Policy settings for the TBS were changed.	Other Policy Change Events
4912	Medium	Per User Audit Policy was changed.	Audit Policy Change
4928	Low	An Active Directory replica source naming context was established.	Detailed Directory Service Replication
4929	Low	An Active Directory replica source naming context was removed.	Detailed Directory Service Replication
4930	Low	An Active Directory replica source naming context was modified.	Detailed Directory Service Replication
4931	Low	An Active Directory replica destination naming context was modified.	Detailed Directory Service Replication
4932	Low	Synchronization of a replica of an Active Directory naming context has begun.	Directory Service Replication
4933	Low	Synchronization of a replica of an Active Directory naming context has ended.	Directory Service Replication
4934	Low	Attributes of an Active Directory object were replicated.	Detailed Directory Service Replication
4935	Low	Replication failure begins.	Detailed Directory Service Replication
4936	Low	Replication failure ends.	Detailed Directory Service Replication
4937	Low	A lingering object was removed from a replica.	Detailed Directory Service Replication
4944	Low	The following policy was active when the Windows Firewall started.	MPSSVC Rule Level Policy Change
4945	Low	A rule was listed when the Windows Firewall started.	MPSSVC Rule Level Policy Change
4946	Low	A change has been made to Windows Firewall exception list. A rule was added.	MPSSVC Rule Level Policy Change
4947	Low	A change has been made to Windows Firewall exception list. A rule was modified.	MPSSVC Rule Level Policy Change
4948	Low	A change has been made to Windows Firewall exception list. A rule was deleted.	MPSSVC Rule Level Policy Change
4949	Low	Windows Firewall settings were restored to the default values.	MPSSVC Rule Level Policy Change
4950	Low	A Windows Firewall setting has changed.	MPSSVC Rule Level Policy Change
4951	Low	A rule has been ignored because its major version number was not recognized by Windows Firewall.	MPSSVC Rule Level Policy Change
4952	Low	Parts of a rule have been ignored because its minor version number was not recognized by Windows Firewall. The other parts of the rule will be enforced.	MPSSVC Rule Level Policy Change
4953	Low	A rule has been ignored by Windows Firewall because it could not parse the rule.	MPSSVC Rule Level Policy Change
4954	Low	Windows Firewall Group Policy settings have changed. The new settings have been applied.	MPSSVC Rule Level Policy Change
4956	Low	Windows Firewall has changed the active profile.	MPSSVC Rule Level Policy Change
4957	Low	Windows Firewall did not apply the following rule:	MPSSVC Rule Level Policy Change
4958	Low	Windows Firewall did not apply the following rule because the rule referred to items not configured on this computer:	MPSSVC Rule Level Policy Change
4960	Medium	IPsec dropped an inbound packet that failed an integrity check. If this problem persists, it could indicate a network issue or that packets are being modified in transit to this computer. Verify that the packets sent from the remote computer are the same as those received by this computer. This error might also indicate interoperability problems with other IPsec implementations.	Ipsec Driver
4961	Medium	IPsec dropped an inbound packet that failed a replay check. If this problem persists, it could indicate a replay attack against this computer.	Ipsec Driver
4962	Medium	IPsec dropped an inbound packet that failed a replay check. The inbound packet had too low a sequence number to ensure it was not a replay.	Ipsec Driver
4963	Medium	IPsec dropped an inbound clear text packet that should have been secured. This is usually due to the remote computer changing its IPsec policy without informing this computer. This could also be a spoofing attack attempt.	Ipsec Driver
4964	High	Special groups have been assigned to a new logon.	Special Logon
4965	Medium	IPsec received a packet from a remote computer with an incorrect Security Parameter Index (SPI). This is usually caused by malfunctioning hardware that is corrupting packets. If these errors persist, verify that the packets sent from the remote computer are the same as those received by this computer. This error may also indicate interoperability problems with other IPsec implementations. In that case, if connectivity is not impeded, then these events can be ignored.	Ipsec Driver
4976	Medium	During Main Mode negotiation, IPsec received an invalid negotiation packet. If this problem persists, it could indicate a network issue or an attempt to modify or replay this negotiation.	Ipsec Main Mode
4977	Medium	During Quick Mode negotiation, IPsec received an invalid negotiation packet. If this problem persists, it could indicate a network issue or an attempt to modify or replay this negotiation.	ipsec quick mode
4978	Medium	During Extended Mode negotiation, IPsec received an invalid negotiation packet. If this problem persists, it could indicate a network issue or an attempt to modify or replay this negotiation.	Ipsec Extended Mode
4979	Low	IPsec Main Mode and Extended Mode security associations were established.	Ipsec Extended Mode
4980	Low	IPsec Main Mode and Extended Mode security associations were established.	Ipsec Extended Mode
4981	Low	IPsec Main Mode and Extended Mode security associations were established.	Ipsec Extended Mode
4982	Low	IPsec Main Mode and Extended Mode security associations were established.	Ipsec Extended Mode
4983	Medium	An IPsec Extended Mode negotiation failed. The corresponding Main Mode security association has been deleted.	Ipsec Extended Mode
4984	Medium	An IPsec Extended Mode negotiation failed. The corresponding Main Mode security association has been deleted.	Ipsec Extended Mode
4985	Low	The state of a transaction has changed.	File System
5024	Low	The Windows Firewall Service has started successfully.
5025	Low	The Windows Firewall Service has been stopped.
5027	Medium	The Windows Firewall Service was unable to retrieve the security policy from the local storage. The service will continue enforcing the current policy.
5028	Medium	The Windows Firewall Service was unable to parse the new security policy. The service will continue with currently enforced policy.
5029	Medium	The Windows Firewall Service failed to initialize the driver. The service will continue to enforce the current policy.
5030	Medium	The Windows Firewall Service failed to start.
5031	Low	The Windows Firewall Service blocked an application from accepting incoming connections on the network.	Filtering Platform Connection
5032	Low	Windows Firewall was unable to notify the user that it blocked an application from accepting incoming connections on the network.
5033	Low	The Windows Firewall Driver has started successfully.
5034	Low	The Windows Firewall Driver has been stopped.
5035	Medium	The Windows Firewall Driver failed to start.
5037	Medium	The Windows Firewall Driver detected critical runtime error. Terminating.
5038	Medium	Code integrity determined that the image hash of a file is not valid. The file could be corrupt due to unauthorized modification or the invalid hash could indicate a potential disk device error.	System Integrity
5039	Low	A registry key was virtualized.	Registry
5040	Low	A change has been made to IPsec settings. An Authentication Set was added.
5041	Low	A change has been made to IPsec settings. An Authentication Set was modified.
5042	Low	A change has been made to IPsec settings. An Authentication Set was deleted.
5043	Low	A change has been made to IPsec settings. A Connection Security Rule was added.
5044	Low	A change has been made to IPsec settings. A Connection Security Rule was modified.
5045	Low	A change has been made to IPsec settings. A Connection Security Rule was deleted.
5046	Low	A change has been made to IPsec settings. A Crypto Set was added.
5047	Low	A change has been made to IPsec settings. A Crypto Set was modified.
5048	Low	A change has been made to IPsec settings. A Crypto Set was deleted.
5049	Low	An IPsec Security Association was deleted.	Ipsec Main Mode
5050	Low	An attempt to programmatically disable the Windows Firewall using a call to InetFwProfile.FirewallEnabled(False)
5051	Low	A file was virtualized.	File System
5056	Low	A cryptographic self test was performed.	System Integrity
5057	Low	A cryptographic primitive operation failed.	System Integrity
5058	Low	Key file operation.
5059	Low	Key migration operation.
5060	Low	Verification operation failed.	System Integrity
5061	Low	Cryptographic operation.	System Integrity
5062	Low	A kernel-mode cryptographic self test was performed.	System Integrity
5063	Low	A cryptographic provider operation was attempted.	Other Policy Change Events
5064	Low	A cryptographic context operation was attempted.	Other Policy Change Events
5065	Low	A cryptographic context modification was attempted.	Other Policy Change Events
5066	Low	A cryptographic function operation was attempted.	Other Policy Change Events
5067	Low	A cryptographic function modification was attempted.	Other Policy Change Events
5068	Low	A cryptographic function provider operation was attempted.	Other Policy Change Events
5069	Low	A cryptographic function property operation was attempted.	Other Policy Change Events
5070	Low	A cryptographic function property modification was attempted.	Other Policy Change Events
5120	Medium	OCSP Responder Service Started
5121	Medium	OCSP Responder Service Stopped
5122	Medium	A configuration entry changed in OCSP Responder Service
5123	Medium	A configuration entry changed in OCSP Responder Service
5124	High	A security setting was updated on the OCSP Responder Service
5125	Low	A request was submitted to the OCSP Responder Service
5126	Low	Signing Certificate was automatically updated by the OCSP Responder Service
5127	Low	The OCSP Revocation Provider successfully updated the revocation information
5136	Low	A directory service object was modified.	Directry Service Changes
5137	Low	A directory service object was created.	Directry Service Changes
5138	Low	A directory service object was undeleted.	Directry Service Changes
5139	Low	A directory service object was moved.	Directry Service Changes
5140	Low	A network share object was accessed.	File Share
5141	Low	A directory service object was deleted.	Directry Service Changes
5152	Low	The Windows Filtering Platform blocked a packet.	Filtering Platform Packet Drop
5153	Low	A more restrictive Windows Filtering Platform filter has blocked a packet.	Filtering Platform Packet Drop
5154	Low	The Windows Filtering Platform has permitted an application or service to listen on a port for incoming connections.	Detailed File Share
5155	Low	The Windows Filtering Platform has blocked an application or service from listening on a port for incoming connections.	Filtering Platform Connection
5156	Low	The Windows Filtering Platform has allowed a connection.	Filtering Platform Connection
5157	Low	The Windows Filtering Platform has blocked a connection.	Filtering Platform Connection
5158	Low	The Windows Filtering Platform has permitted a bind to a local port.	Filtering Platform Connection
5159	Low	The Windows Filtering Platform has blocked a bind to a local port.	Filtering Platform Connection
5376	Medium	Credential Manager credentials were backed up.	User Account Management
5377	Medium	Credential Manager credentials were restored from a backup.	User Account Management
5378	Low	The requested credentials delegation was disallowed by policy.	Other Account Logon Events
5440	Low	The following callout was present when the Windows Filtering Platform Base Filtering Engine started.
5441	Low	The following filter was present when the Windows Filtering Platform Base Filtering Engine started.
5442	Low	The following provider was present when the Windows Filtering Platform Base Filtering Engine started.
5443	Low	The following provider context was present when the Windows Filtering Platform Base Filtering Engine started.
5444	Low	The following sublayer was present when the Windows Filtering Platform Base Filtering Engine started.
5446	Low	A Windows Filtering Platform callout has been changed.
5447	Low	A Windows Filtering Platform filter has been changed.	Other Policy Change Events
5448	Low	A Windows Filtering Platform provider has been changed.
5449	Low	A Windows Filtering Platform provider context has been changed.
5450	Low	A Windows Filtering Platform sublayer has been changed.
5451	Low	An IPsec Quick Mode security association was established.	ipsec quick mode
5452	Low	An IPsec Quick Mode security association ended.	ipsec quick mode
5453	Medium	An IPsec negotiation with a remote computer failed because the IKE and AuthIP IPsec Keying Modules (IKEEXT) service is not started.	Ipsec Main Mode
5456	Low	PAStore Engine applied Active Directory storage IPsec policy on the computer.
5457	Low	PAStore Engine failed to apply Active Directory storage IPsec policy on the computer.
5458	Low	PAStore Engine applied locally cached copy of Active Directory storage IPsec policy on the computer.
5459	Low	PAStore Engine failed to apply locally cached copy of Active Directory storage IPsec policy on the computer.
5460	Low	PAStore Engine applied local registry storage IPsec policy on the computer.
5461	Low	PAStore Engine failed to apply local registry storage IPsec policy on the computer.
5462	Low	PAStore Engine failed to apply some rules of the active IPsec policy on the computer. Use the IP Security Monitor snap-in to diagnose the problem.
5463	Low	PAStore Engine polled for changes to the active IPsec policy and detected no changes.
5464	Low	PAStore Engine polled for changes to the active IPsec policy, detected changes, and applied them to IPsec Services.
5465	Low	PAStore Engine received a control for forced reloading of IPsec policy and processed the control successfully.
5466	Low	PAStore Engine polled for changes to the Active Directory IPsec policy, determined that Active Directory cannot be reached, and will use the cached copy of the Active Directory IPsec policy instead. Any changes made to the Active Directory IPsec policy since the last poll could not be applied.
5467	Low	PAStore Engine polled for changes to the Active Directory IPsec policy, determined that Active Directory can be reached, and found no changes to the policy. The cached copy of the Active Directory IPsec policy is no longer being used.
5468	Low	PAStore Engine polled for changes to the Active Directory IPsec policy, determined that Active Directory can be reached, found changes to the policy, and applied those changes. The cached copy of the Active Directory IPsec policy is no longer being used.
5471	Low	PAStore Engine loaded local storage IPsec policy on the computer.
5472	Low	PAStore Engine failed to load local storage IPsec policy on the computer.
5473	Low	PAStore Engine loaded directory storage IPsec policy on the computer.
5474	Low	PAStore Engine failed to load directory storage IPsec policy on the computer.
5477	Low	PAStore Engine failed to add quick mode filter.
5478	Low	IPsec Services has started successfully.	Ipsec Driver
5479	Low	IPsec Services has been shut down successfully. The shutdown of IPsec Services can put the computer at greater risk of network attack or expose the computer to potential security risks.	Ipsec Driver
5480	Medium	IPsec Services failed to get the complete list of network interfaces on the computer. This poses a potential security risk because some of the network interfaces may not get the protection provided by the applied IPsec filters. Use the IP Security Monitor snap-in to diagnose the problem.	Ipsec Driver
5483	Medium	IPsec Services failed to initialize RPC server. IPsec Services could not be started.	Ipsec Driver
5484	Medium	IPsec Services has experienced a critical failure and has been shut down. The shutdown of IPsec Services can put the computer at greater risk of network attack or expose the computer to potential security risks.	Ipsec Driver
5485	Medium	IPsec Services failed to process some IPsec filters on a plug-and-play event for network interfaces. This poses a potential security risk because some of the network interfaces may not get the protection provided by the applied IPsec filters. Use the IP Security Monitor snap-in to diagnose the problem.	Ipsec Driver
5632	Low	A request was made to authenticate to a wireless network.	Other Account Logon Events
5633	Low	A request was made to authenticate to a wired network.	Other Account Logon Events
5712	Low	A Remote Procedure Call (RPC) was attempted.	RPC Events
5827	Medium	The Netlogon service denied a vulnerable Netlogon secure channel connection from a machine account.
5828	Medium	The Netlogon service denied a vulnerable Netlogon secure channel connection using a trust account.
5888	Low	An object in the COM+ Catalog was modified.	Other Object Access Events
5889	Low	An object was deleted from the COM+ Catalog.	Other Object Access Events
5890	Low	An object was added to the COM+ Catalog.	Other Object Access Events
6008	Low	The previous system shutdown was unexpected
6144	Low	Security policy in the Group Policy objects has been applied successfully.	Other Policy Change Events
6145	Medium	One or more errors occurred while processing security policy in the Group Policy objects.	Other Policy Change Events
6272	Low	Network Policy Server granted access to a user.	Network Policy Server
6273	Medium	Network Policy Server denied access to a user.	Network Policy Server
6274	Medium	Network Policy Server discarded the request for a user.	Network Policy Server
6275	Medium	Network Policy Server discarded the accounting request for a user.	Network Policy Server
6276	Medium	Network Policy Server quarantined a user.	Network Policy Server
6277	Medium	Network Policy Server granted access to a user but put it on probation because the host did not meet the defined health policy.	Network Policy Server
6278	Medium	Network Policy Server granted full access to a user because the host met the defined health policy.	Network Policy Server
6279	Medium	Network Policy Server locked the user account due to repeated failed authentication attempts.	Network Policy Server
6280	Medium	Network Policy Server unlocked the user account.	Network Policy Server
24577	Low	Encryption of volume started
24578	Low	Encryption of volume stopped
24579	Low	Encryption of volume completed
24580	Low	Decryption of volume started
24581	Low	Decryption of volume stopped
24582	Low	Decryption of volume completed
24583	Low	Conversion worker thread for volume started
24584	Low	Conversion worker thread for volume temporarily stopped
24586	Medium	An error was encountered converting volume
24588	Low	The conversion operation on volume %2 encountered a bad sector error. Please validate the data on this volume
24592	Medium	An attempt to automatically restart conversion on volume %2 failed.
24593	Medium	Metadata write: Volume %2 returning errors while trying to modify metadata. If failures continue, decrypt volume
24594	Medium	Metadata rebuild: An attempt to write a copy of metadata on volume %2 failed and may appear as disk corruption. If failures continue, decrypt volume.
24595	Low	Volume %2 contains bad clusters. These clusters will be skipped during conversion.
24621	Low	Initial state check: Rolling volume conversion transaction on %2.
-	Medium	General account database changed
-	Medium	Quality of Service Policy changed
N/A	Medium to High	Possible denial-of-service (DoS) attack
N/A	Low	A handle to an object was requested.
N/A	Low	Object open for delete
N/A	Low	User Account Type Changed
N/A	Low	IPsec policy agent started
N/A	Low	IPsec policy agent disabled
N/A	Low	IPsec policy agent
N/A	Low	IPsec policy agent encountered a potential serious failure