[NeMo-DDoS-List] FW: [Geant NeMo] #425955 UPD CRIT: IUCC (AS378) - "High SYN packet rate: 195k SYN Packets/s" [IUCC] [Customer] [Email_Analysis]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Wednesday, June 24, 2026 9:31:36 AM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #425955 UPD CRIT: IUCC (AS378) - "High SYN packet rate: 195k SYN Packets/s" [IUCC] [Customer] [Email_Analysis]

Critical: Observed high SYN packet rates of
  195k SYN Packets/s
on
  autonomoussystem IUCC (AS378).

Alert ID: 425955
Status: Open
Severity: Critical

Start Time: 2026-06-24 06:23:22
End Time: ongoing
Start Time (Europe/Berlin): 2026-06-24 08:23:22
End Time (Europe/Berlin): ongoing
Duration: 9 min

First Event Seen: 2026-06-24 06:21:00
Last Event Seen: 2026-06-24 06:30:00
Event Count: 10

Trigger: High SYN Packet Rate (AS) (Email_Analysis+threshold) (ID 60)

Alert Description:
High SYN packet rate

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          10



Further Details:
https://primary.nemo.geant.org/alerts/details/425955/

All times expressed in UTC.