Web Filter Log Messages

Vendor Documentation

https://docs.trendmicro.com/en-us/enterprise/apex-central-online-help/appendices/syslog-mapping-cef.aspx

https://docs.trendmicro.com/en-us/enterprise/trend-micro-apex-central-2019-online-help/appendices/syslog-mapping-cef/cef-web-security-log.aspx

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
N/A	<severity>	N/A
Header (logVer)	N/A	N/A
Header (vendor)	N/A	N/A
Header (pname)	N/A	N/A
Header (pver)	<version>	N/A
Header (eventid)	<vendorinfo> <tag1>	<vmid>
Header (eventName)	<action>	N/A
Header (severity)	<severity>	<severity>
deviceExternalId	N/A	N/A
rt	N/A	N/A
app	N/A	<protnum>
cntLabel	N/A	N/A
cnt	N/A	<quantity>
dpt	<dport>	<dport>
act	N/A	<action> <tag1>
c6a2Label	N/A	N/A
c6a2	N/A	<sip>
src	<sip>	<sip>
cs1Label	N/A	N/A
cs1	<policy>	<policy>
deviceDirection	N/A	N/A
cat	N/A	<subject>
dvchost	<dname>	N/A
fname	N/A	<object>
request	<url>	<url>
deviceFacility	N/A	N/A
shost	<sname>	<sname>
deviceProcessName	<process>	<process>
duser	<domainorigin> <account>	<domainimpacted> <account>
cn3Label	N/A	N/A
cn3	N/A	N/A
cn2Label	N/A	N/A
cn2	N/A	N/A
reason	N/A	<reason>
deviceNtDomain	N/A	N/A
dntdom	N/A	N/A
TMCMLogDetectedHost	N/A	<sname>
TMCMLogDetectedIP	N/A	<sip>
ApexCentralHost	N/A	N/A
devicePayloadId	N/A	N/A
dst	N/A	<dip>
cs2Label	N/A	N/A
cs2	N/A	N/A
cn1Label	N/A	N/A
cn1	N/A	N/A
cs5Label	N/A	N/A
cs5	N/A	N/A
cs4Label	N/A	N/A
cs4	N/A	<responsecode>

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	Classification	Common Event
1011377	Web Filter Log Messages	Base Rule	Information	General Web Filter Message

LogRhythm Default v2.0

Regex ID	Rule Name	Rule Type	Classification	Common Event
1012157	V 2.0 : Web Security Event	Base Rule	Activity	General Threat Message
	V 2.0 : Web Security : Unknown	Sub Rule	Activity	General Threat Message
	V 2.0 : Web Security : Pass	Sub Rule	Activity	General Threat Message
	V 2.0 : Web Security : Block	Sub Rule	Failed Activity	Threat Blocked
	V 2.0 : Web Security : Monitor	Sub Rule	Activity	General Threat Message
	V 2.0 : Web Security : Delete	Sub Rule	Failed Activity	Threat Deleted
	V 2.0 : Web Security : Quarantine	Sub Rule	Activity	Quarantine
	V 2.0 : Web Security : Warn	Sub Rule	Activity	General Threat Message
	V 2.0 : Web Security : Warn And Continue	Sub Rule	Activity	General Threat Message
	V 2.0 : Web Security : Override	Sub Rule	Activity	General Threat Message