[NeMo-DDoS-List] FW: [Geant NeMo] #254226 UPD WARN: IUCC (AS378) - "Warning: Abnormal SYN:ACK ratio: 1M SYN Packets/s, 633k ACK Packets/s" [Email_Analysis] [Customer] [IUCC]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at geant.org <nemo-ddos at geant.org>
Sent: Wednesday, February 28, 2024 8:17:54 PM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #254226 UPD WARN: IUCC (AS378) - "Warning: Abnormal SYN:ACK ratio: 1M SYN Packets/s, 633k ACK Packets/s" [Email_Analysis] [Customer] [IUCC]

Warning: Observed abnormal SYN:ACK packet ratio with
  1M SYN Packets/s, 633k ACK Packets/s
on
  autonomoussystem IUCC (AS378).

Alert ID: 254226
Status: Open
Severity: Warning

Start Time: 2024-02-28 18:04:48
End Time: ongoing
Start Time (Europe/Berlin): 2024-02-28 19:04:48
End Time (Europe/Berlin): ongoing
Duration: 13 min

First Event Seen: 2024-02-28 18:02:00
Last Event Seen: 2024-02-28 18:16:00
Event Count: 13

Trigger: Abnormal SYN / ACK Ratio (AS) (Email_Analysis) (ID 59)

Alert Description:
Abnormal SYN:ACK packet ratio

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          13



Further Details:
https://primary.nemo.geant.org/alerts/details/254226/

All times expressed in UTC.