AN0594
Analytic 0594
IaaS
Direct login to cloud-hosted virtual machines via cloud-native access methods (e.g., EC2 Instance Connect, Azure Serial Console, SSM), followed by command execution or privilege escalation on the VM
AWS:CloudTrail
SendSSHPublicKey, StartSession (SSM), EC2InstanceConnect
WinEventLog:Sysmon
EventCode=1
[TimeWindow]
Correlates cloud login to host activity within a reasonable time span (e.g., < 60 seconds)
[CloudAuthMethod]
Filters based on access vector: SSH key, SSM session, or Console connect
[SessionOriginRegion]
Identifies sessions from out-of-region or untrusted networks
[TargetInstanceTags]
Filters sensitive systems or production assets for alert tuning