Coordinating with Huntress auto-response
Auto-response can complete containment actions before you see the incident. Recognise what it did, verify it worked, then continue from the next applicable step.
Managed ITDR includes auto-response: the platform can take some containment actions on its own when the SOC’s classification is confident enough. Session revoke is the most common auto-response action. Some configurations also include password reset and rule removal. Auto-response cuts the time-to-containment from “tech sees the incident” to “platform contained it.” The skill in this lesson is recognising what auto-response has already done so you do not repeat it, undo it, or skip verifying it.
What auto-response looks like in the Incident Report
When auto-response fires, the Incident Report shows:
- Actions taken by Huntress, with timestamps, before the tech sees the incident.
- A note in the Summary or Evidence indicating auto-response handled specific steps.
- The Recommendation may exclude steps already auto-completed, focusing on what remains.
- The Timeline shows the auto-response actions as events alongside the attacker events.
A common shape: “Sign-in from suspicious location detected at 14:22. Auto-response: session revoked at 14:22. Manual response needed: password and MFA reset, inbox-rule removal.”
Three things to confirm
- What auto-response did. Usually session revoke. Sometimes more. The Incident Report names the actions.
- When it happened relative to the attacker activity. Auto-response 8 seconds after the suspicious sign-in is fast; the attacker had minimal time to act. Auto-response 6 minutes in means the attacker may have already done several things before containment.
- Whether the auto-response completed cleanly. A successful auto-response shows as a confirmed action. A degraded auto-response (timeout, partial-success, error) needs the tech to retry or escalate.
What changes about the playbook
If auto-response has done session revoke, skip that step. Proceed to step 2 (password and MFA reset). The Recommendation may state this explicitly.
If auto-response has done more than session revoke, check each step:
- Did it reset the password? If yes, you do not reset again. Brief the user on the new credential.
- Did it remove inbox rules? Confirm in the user’s rule list, but do not re-run the action.
- Did it revoke OAuth grants? Same check.
The Recommendation written by the SOC accounts for what auto-response did. Read it.
What to verify even when auto-response handled it
Trust-but-verify:
- The action actually applied. The portal claims session revoke at 14:22. The active-session list should be empty.
- The attacker activity stopped. No new events from the previously-revoked session post-revoke. Continued activity is the OAuth-tokens-still-active pattern, or an integration glitch.
- The Recommendation’s remaining steps are still valid. Auto-response sometimes triggers a SOC re-evaluation.
Common mistakes
Re-doing actions auto-response already completed. Wastes effort, can confuse the audit trail, and in some edge cases creates duplicate-action states the SOC has to untangle.
Skipping verification because “auto-response said it worked.” Same as the EDR verify-step skip. Most of the time it is fine. The times it is not are the ones that bite you later.
Fighting auto-response by un-doing what it did. A user calls to complain about the lockout. The tech un-isolates or restores the session without checking the Incident Report. The auto-response was the containment. Reversing it puts the customer back in the compromise state.
A worked scenario
An Incident Report on marcus.wong@example.com. Summary: “Suspicious sign-in detected. Auto-response: session revoked at 09:14:08, MFA challenge required on next sign-in. Manual response needed: password reset, inbox-rule removal.” Timeline shows attacker activity from 09:13:55 to 09:14:03. Auto-response fired 5 seconds after the rule creation.
When to escalate
- Auto-response shows as failed or partial. If the Recommendation does not direct manual completion, bump.
- Auto-response took an action that the Recommendation now contradicts. Conflict between auto-action and current Recommendation is rare but worth surfacing to the SOC.
- A customer pushes back on the auto-response action intensely. The action does not get reversed. The conversation may be senior territory if the customer is confrontational.