PH_RULE_Cert_Mon_SelfSigned_Win_CertAdded
Disabled
Detects a self-signed certificate being added to a Windows host. Certificates that are signed by Certificate Authorities are excluded from this rule.
6
Change
No Technique Specified
Server
Windows Certificate Monitoring via FortiSIEM Agent
Correlation
No remediation guidance specified
If the following pattern or patterns match an ingested event within the given time window in seconds, trigger an incident.
300 seconds
If the following defined pattern/s occur within a 300 second time window.
CertAdded
This is the named definition of the event query, this is important if multiple subpatterns are defined to distinguish them.
This is the query logic that matches incoming events
eventType = "AO-WUA-Certificate-Added" AND isSelfSigned = 1 AND isCertAuthority = 0
This defines how matching events are aggregated, only events with the same matching attribute values are grouped into one unique incident ID
hostName,certInfo,issuedTo,issuer
This is most typically a numerical constraint that defines when the rule should trigger an incident
COUNT (*) >= 1
This section defines which fields in matching raw events should be mapped to the incident attributes in the resulting incident.
The available raw event attributes to map are limited to the group by attributes and the aggregate event constraint fields for each subpattern
hostName = CertAdded.hostName,
certInfo = CertAdded.certInfo,
issuedTo = CertAdded.issuedTo,
issuer = CertAdded.issuer