[NeMo-DDoS-List] FW: [Geant NeMo] #408311 UPD CRIT: IUCC (AS378) - "4 alerts" [IUCC] [Email_Analysis] [Customer]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Friday, February 27, 2026 8:07:49 PM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #408311 UPD CRIT: IUCC (AS378) - "4 alerts" [IUCC] [Email_Analysis] [Customer]

Aggregated 4 alerts. Upgraded to severity Critical.

Alert ID: 408311
Status: Open
Severity: Critical

Start Time: 2026-02-27 18:01:31
End Time: ongoing
Start Time (Europe/Berlin): 2026-02-27 19:01:31
End Time (Europe/Berlin): ongoing
Duration: 7 min

First Event Seen: 2026-02-27 17:59:00
Last Event Seen: 2026-02-27 18:06:00
Event Count: 28

Trigger: Multiple Alerts (ID 15)

Alert Description:
Aggregated 4 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          28

Child Alerts:
  Alert ID            Description
----------------------------------------------
408309      High SYN packet rate
408310      Abnormal SYN:ACK packet ratio
408312      High TCP packet rate
408313      High packet rate


Further Details:
https://primary.nemo.geant.org/alerts/details/408311/

All times expressed in UTC.