| 1 | --- |
| 2 | title: "Step-by-Step IR: From C2 Alert to Full Containment" |
| 3 | description: Containment-first playbook for C2 beaconing alerts. |
| 4 | --- |
| 5 | |
| 6 | **Video:** https://www.youtube.com/watch?v=PUQ3H913xGs |
| 7 | |
| 8 | ## Goal |
| 9 | Contain the host quickly, preserve evidence, then work the investigation to full containment. |
| 10 | |
| 11 | ## When to use |
| 12 | - Alerts indicating command-and-control (C2) / beaconing |
| 13 | |
| 14 | ## Prereqs |
| 15 | - Alert routing into CoPilot is working |
| 16 | - Ability to isolate/quarantine endpoints (if enabled) |
| 17 | |
| 18 | ## Procedure (high level) |
| 19 | 1) Confirm scope (customer, host, user) |
| 20 | 2) Contain first (isolate/quarantine where appropriate) |
| 21 | 3) Pivot into surrounding events + endpoint evidence |
| 22 | 4) Create/attach a case and document actions |
| 23 | |
| 24 | ## Validation |
| 25 | - Host is contained |
| 26 | - Evidence captured and case notes updated |
| 27 | |
| 28 | ## Safety notes |
| 29 | - Prefer containment that preserves volatile evidence when possible. |