Event-o-Pedia EventID 851 - A change has been made to the Windows Firewall application exception list [Win 2003 / XP]

	Event Details
	Operating System->Microsoft Windows->Built-in logs->Windows 2000-2003->Security Log->Policy Change->EventID 851 - A change has been made to the Windows Firewall application exception list [Win 2003 / XP]

EventID 851 - A change has been made to the Windows Firewall application exception list [Win 2003 / XP]

This event indicates that a change was successfully made to the list of exceptions rules (specifically exception rules that allow traffic through for the specified applications) of the Windows Firewall. The change was made either through the local policy or via a group policy propagation.

Find more information about this event on ultimatewindowssecurity.com.

Corresponding events on other OS versions:

Windows 2008

Sample:

Event Type:     Success Audit
Event Source:   Security
Event Category: Policy Change
Event ID:       851
Date:           12/16/2009
Time:           06:56:37
User:           NT AUTHORITY\SYSTEM
Computer:       DC1
Description:    
A change has been made to the Windows Firewall application exception list.

Policy origin: Local Policy
Profile changed: Standard
Change type: Add
New Settings:
     Name: FAR manager
     Path: C:\Program Files\Far\Far.exe
     State: Enabled
     Scope: All subnets
Old Settings:
     Name: -
     Path: -
     State: -
     Scope: -

Log Type:

Windows Event Log

Uniquely Identified By:

Log Name:

Security

Filtering Field	Equals to Value
OSVersion	Windows 2003 Windows XP
Category	Policy Change
Source	Security
EventId	851

Field Matching

Field	Description	Stored in	Sample Value
DateTime	Date/Time of event origination in GMT format.	DateTime	10.10.2000 19:00:00
Source	Name of an Application or System Service originating the event.	Source	Security
Type	Warning, Information, Error, Success, Failure, etc.	Type	Success
User	Domain\Account name of user/service/computer initiating event.	User	RESEARCH\Alebovsky
Computer	Name of server workstation where event was logged.	Computer	DC1
EventID	Numerical ID of event. Unique within one Event Source.	EventId	576
Description	The entire unparsed event message.	Description	Special privileges assigned to new logon.
Log Name	The name of the event log (e.g. Application, Security, System, etc.)	LogName	Security
Category	A name for a subclass of events within the same Event Source.	Category	Logon/Logoff
Policy origin	Indicates whether Windows Firewall was getting its settings from Group Policy or the system's local policy.	InsertionString1	Local Policy
Profile changed	Standard or Domain. Domain profile is applied when the computer is on its "home" network, Standard profile is applied when the computer is not connected to its "home" network, e.g. out travelling and connected to public internet via Wi-Fi.	InsertionString2	Standard
Change type	Type of change to the exception list: exception added, removed, or modified	InsertionString3	Add
New Name	New value for the application name	InsertionString4	FAR manager
New Path	New value for the full system path to the excepted application	InsertionString5	C:\Program Files\Far\Far.exe
New State	New value for the state of the exception rule: Enabled or Disabled	InsertionString6	Enabled
New Scope	New value for the scope of the exception rule: IP address or subnet mask to which the rule applies	InsertionString7	All subnets
Old Name	Old value for the application name	InsertionString8	-
Old Path	Old value for the full system path to the excepted application	InsertionString9	-
Old State	Old value for the state of the exception rule: Enabled or Disabled	InsertionString10	-
Old Scope	Old value for the scope of the exception rule: IP address or subnet mask to which the rule applies	InsertionString11	-