[NeMo-DDoS-List] FW: [Geant NeMo] #271557 UPD 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: Sunday, October 25, 2026 4:11:57 AM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #271557 UPD CRIT: IUCC (AS378) - "4 alerts" [Customer] [IUCC] [Email_Analysis]

Aggregated 4 alerts. Upgraded to severity Critical.

Alert ID: 271557
Status: Open
Severity: Critical

Start Time: 2026-10-25 02:07:43
End Time: ongoing
Start Time (Europe/Berlin): 2026-10-25 03:07:43
End Time (Europe/Berlin): ongoing
Duration: 5 min

First Event Seen: 2026-10-25 02:05:00
Last Event Seen: 2026-10-25 02:10:00
Event Count: 23

Trigger: Multiple Alerts (ID 31)

Alert Description:
Aggregated 4 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          23

Child Alerts:
  Alert ID        Description
--------------------------------------
271534      High packet rate.
271536      High SYN packet rate.
271538      High ACK packet rate.
271551      High TCP packet rate.


Further Details:
https://secondary.nemo.geant.org/alerts/details/271557/

All times expressed in UTC.