[NeMo-DDoS-List] FW: [Geant NeMo] #190549 UPD CRIT: IUCC (AS378) - "Critical: Abnormal SYN:ACK ratio: 310k SYN Packets/s, 384k ACK Packets/s" [IUCC] [Customer] [Email_Analysis]
Hank Nussbacher
hank at mail.iucc.ac.il
Wed Sep 27 21:35:26 IDT 2023
________________________________________
From: nemo-ddos at geant.org <nemo-ddos at geant.org>
Sent: Wednesday, September 27, 2023 9:35:22 PM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #190549 UPD CRIT: IUCC (AS378) - "Critical: Abnormal SYN:ACK ratio: 310k SYN Packets/s, 384k ACK Packets/s" [IUCC] [Customer] [Email_Analysis]
Critical: Observed abnormal SYN:ACK packet ratio with
310k SYN Packets/s, 384k ACK Packets/s
on
autonomoussystem IUCC (AS378).
Alert ID: 190549
Status: Open
Severity: Critical
Start Time: 2023-09-27 18:12:15
End Time: ongoing
Start Time (Europe/Berlin): 2023-09-27 20:12:15
End Time (Europe/Berlin): ongoing
Duration: 23 min
First Event Seen: 2023-09-27 18:10:00
Last Event Seen: 2023-09-27 18:34:00
Event Count: 24
Trigger: Abnormal SYN / ACK Ratio (AS) (Email_Anal) (ID 59)
Alert Description:
Abnormal SYN:ACK packet ratio
Affected Objects:
Type Name Event Count
---------------------------------------------------
Autonomoussystem IUCC (AS378) 24
Further Details:
https://primary.nemo.geant.org/alerts/details/190549/
All times expressed in UTC.
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