Structural Application HostCasebook · Cybersecurity Edition
Investigation
Cybersecurity
security-agent · Agent A · v1.4
Runtime V3 · r44 · splunk-cim
Structural0
Neural0
Constitution v3

Runtime lifecycle

User: aliceIP: 203.0.113.14

Activation trace · why this concept fired

index=* sourcetype=* action=success user="alice" src="203.0.113.14"
| transaction user maxpause=6m
| where eventcount > 20 AND match(action, "failure") AND match(action, "success")

This would be wrong if

  • This would be wrong if the successful login was alice actually logging in from a VPN endpoint that happens to share the source IP.
  • This would be wrong if the timing correlation is coincidental (verify with additional context).

Unknowns · concept gaps

A successful login followed a burst of failures from the same source, then that account ran a privileged process, read a sensitive file, and was added to Domain Admins. The individual events are recognized, but this cross-stage sequence is not yet a known pattern.

Affects 47 events · 2 findings

Selected recommendation

Escalate for analyst review

High-risk signals align with known credential-abuse patterns. The agent is not permitted to disable the account — the response action is simulated pending analyst validation.

Within policy · no autonomous action