UDP port 1434 directed attack to AS13489 IP ranges

We have seen today a big rise of incoming packets of what appears to be a SQL Slammer attacks. Some of the detected packets are:

Suspect packet #1

Malicious packet 2

Malicious packet 3

We have seen a sustained rate in many nodes  inside AS13489 and AS27989 nodes of  about 25 Mbps. Some very old SQL servers have been compromised, but the Internet speed has been compromised and navigation it's very slow.

Have you seen something like this today on your AS? Let us know!

Manuel Humberto Santander Peláez
SANS Internet Storm Center - Handler
e-mail: msantand at isc dot sans dot org

Manuel Humberto Santander Pelaacuteez

195 Posts
ISC Handler
May 24th 2013

Sign Up for Free or Log In to start participating in the conversation!