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Detect when a Google Compute Engine firewall egress rule is opened to the world.
This rule monitors Google Cloud Audit Logs to determine when a v*.compute.firewalls.insert
API call is made with the traffic direction as egress (@data.protoPayload.request.direction:EGRESS
) and the destination range as all IP addresses (@data.protoPayload.request.destinationRanges:0.0.0.0/0
).
An excessively open firewall rule like this could be a sign of an ongoing cryptomining attack.
{{@usr.id}}
from IP address {{@network.client.ip}}
should have made the {{@evt.name}}
API call.@threat_intel.results.subcategory:tor
with @threat_intel.results.category:tor
.