[NeMo-DDoS-List] FW: [Geant NeMo] #377494 UPD CRIT: IUCC (AS378) - "High SYN packet rate: 240k SYN Packets/s" [IUCC] [Customer] [Email_Analysis]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Friday, July 11, 2025 11:03:08 AM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #377494 UPD CRIT: IUCC (AS378) - "High SYN packet rate: 240k SYN Packets/s" [IUCC] [Customer] [Email_Analysis]

Critical: Observed high SYN packet rates of
  240k SYN Packets/s
on
  autonomoussystem IUCC (AS378).

Alert ID: 377494
Status: Open
Severity: Critical

Start Time: 2025-07-11 07:57:54
End Time: ongoing
Start Time (Europe/Berlin): 2025-07-11 09:57:54
End Time (Europe/Berlin): ongoing
Duration: 6 min

First Event Seen: 2025-07-11 07:55:00
Last Event Seen: 2025-07-11 08:01:00
Event Count: 7

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)          7



Further Details:
https://primary.nemo.geant.org/alerts/details/377494/

All times expressed in UTC.