V 2.0 : EVID 4778, 4779 : Windows Station Session

Vendor Documentation

https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4778

Classification

Rule Name	Rule Type	Common Event	Classification
V 2.0 : EVID 4778, 4779 : Windows Station Session	Base Rule	Session Information	Information
V 2.0 : EVID 4778 : A Session Was Reconnected	Sub Rule	Session Reconnected	Other Audit Success
V 2.0 : EVID 4779 : A Session Was Disconnected	Sub Rule	Session Disconnected	Other Audit Success

Mapping with LogRhythm Schema

Device Key in Log Message	LogRhythm Schema	Data Type	Schema Description
Provider	N/A	N/A	Identifies the provider that logged the event. The Name and Guid attributes are included if the provider used an instrumentation manifest to define its events. The EventSourceName attribute is included if a legacy event provider (using the Event Logging API) logged the event.
EventID	<vmid>	Number	The identifier that the provider used to identify the event.
Version	N/A	N/A	The version number of the event's definition.
Level	<severity>	Text/String	The severity level defined in the event.
Task	<vendorinfo>	Text/String	The task defined in the event. Task and Opcode are typically used to identify the location in the application from where the event was logged.
Opcode	N/A	N/A	The opcode defined in the event. Task and Opcode are typically used to identify the location in the application from where the event was logged.
Keywords	<result>	Text/String	A bitmask of the keywords defined in the event. Keywords are used to classify types of events (for example, events associated with reading data).
TimeCreated	N/A	N/A	The time stamp that identifies when the event was logged. The time stamp will include either the SystemTime attribute or the RawTime attribute.
EventRecordID	N/A	N/A	The record number assigned to the event when it was logged.
Correlation	N/A	N/A	The activity identifiers that consumers can use to group related events together.
Execution	N/A	N/A	Contains information about the process and thread that logged the event.
Channel	N/A	N/A	The channel to which the event was logged.
Computer	<dname>	Text/String	The name of the computer on which the event occurred.
AccountName	<login>	Text/String	The name of the account for which the session was reconnected.
AccountDomain	<domainorigin>	Text/String	The subject’s domain or computer name. Formats vary, and include the following: Domain NETBIOS name example: CONTOSO Lowercase full domain name: contoso.local Uppercase full domain name: CONTOSO.LOCAL For some well-known security principals, such as LOCAL SERVICE or ANONYMOUS LOGON, the value of this field is “NT AUTHORITY”. For local user accounts, this field will contain the name of the computer or device that this account belongs to
LogonID	<session>	Number	A hexadecimal value that can help you correlate this event with recent events that might contain the same Logon ID
SessionName	<sessiontype>	Text/String	The name of the session to which the user was reconnected. Examples: RDP-Rcp#N, where N is a number of session – typical RDP session name. Console – console session, typical for Fast User Switching. 31C5CE94259D4006A9E4#3 – example of Hyper-V Enhanced Session session name.
ClientName	<sname>	Text/String	The computer name from which the user was reconnected. Has Unknown value for console session.
ClientAddress	<sip>	Number	IP address of the computer from which the user was reconnected. IPv6 address or ::ffff:IPv4 address of a client. ::1 or 127.0.0.1 means localhost. Has LOCAL value for console session.