[NeMo-DDoS-List] FW: [Geant NeMo] #244152 END CRIT: IUCC (AS378) - "4 alerts" [Customer] [IUCC] [Email_Analysis]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Wednesday, April 22, 2026 6:34:57 AM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #244152 END CRIT: IUCC (AS378) - "4 alerts" [Customer] [IUCC] [Email_Analysis]

Observed <= 0 alerts, closing.Alert closed.

Alert ID: 244152
Status: Closed
Severity: Critical

Start Time: 2026-04-22 03:20:51
End Time: 2026-04-22 03:34:45
Start Time (Europe/Berlin): 2026-04-22 05:20:51
End Time (Europe/Berlin): 2026-04-22 05:34:45
Duration: 14 min

First Event Seen: 2026-04-22 03:18:00
Last Event Seen: 2026-04-22 03:24:00
Event Count: 26

Trigger: Multiple Alerts (ID 31)

Alert Description:
Aggregated 4 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          26

Child Alerts:
  Alert ID                    Description
--------------------------------------------------------------
244148      High TCP packet rate.
244149      High packet rate.
244151      Abnormal ratio of SYN packets to ACK packets.
244154      High SYN packet rate.


Further Details:
https://secondary.nemo.geant.org/alerts/details/244152/

All times expressed in UTC.