[NeMo-DDoS-List] FW: [Geant NeMo] #214649 END CRIT: IUCC (AS378) - "5 alerts" [IUCC] [Customer] [Email_Analysis]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Tuesday, September 23, 2025 12:55:11 PM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #214649 END CRIT: IUCC (AS378) - "5 alerts" [IUCC] [Customer] [Email_Analysis]

Observed <= 0 alerts, closing.Alert closed.

Alert ID: 214649
Status: Closed
Severity: Critical

Start Time: 2025-09-22 14:53:47
End Time: 2025-09-23 09:55:00
Start Time (Europe/Berlin): 2025-09-22 16:53:47
End Time (Europe/Berlin): 2025-09-23 11:55:00
Duration: 19 h, 2 min

First Event Seen: 2025-09-22 14:51:00
Last Event Seen: 2025-09-23 09:45:00
Event Count: 2718

Trigger: Multiple Alerts (ID 31)

Alert Description:
Aggregated 5 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)         2718

Child Alerts:
  Alert ID                    Description
--------------------------------------------------------------
214690      High ACK packet rate.
214646      High packet rate.
214647      High SYN packet rate.
214648      High TCP packet rate.
214650      Abnormal ratio of SYN packets to ACK packets.


Further Details:
https://secondary.nemo.geant.org/alerts/details/214649/

All times expressed in UTC.