PH_RULE_PrintNightmare_Detected_Host
Enabled
Print Nightmare Exploit Activity was detected on Host
9
Security
Exploit
No Technique Specified
System
FortiClient via Syslog
Correlation
Check if the source is patched for the CVE associated with the event. If yes then remove the host from the network and patch immediately. If host is not scanned then determine if the host is running the affected version of the application. If yes then patch immediately, else it is likely a false positive.
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.
printnightmare
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 CONTAIN "FortiClient" AND ( virusName = "MS.Windows.Print.Spooler.AddPrinterDriver.Privilege.Escalation" OR vulnName = "MS.Windows.Print.Spooler.AddPrinterDriver.Privilege.Escalation" OR attackName = "MS.Windows.Print.Spooler.AddPrinterDriver.Privilege.Escalation" OR virusId IN ("68103","68104","68105") OR vulnIdStr IN ("68103","68104","68105") OR ipsSignatureId = 50553 )
This defines how matching events are aggregated, only events with the same matching attribute values are grouped into one unique incident ID
hostIpAddr
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
hostIpAddr=printnightmare.hostIpAddr