Stupidly Simple DDoS Protocol (SSDP) generates 100 Gbps DDoS
Last month we shared statistics on some popular reflection attacks. Back then the average SSDP attack size was ~12 Gbps and largest SSDP reflection we recorded was:
- 30 Mpps (millions of packets per second)
- 80 Gbps (billions of bits per second)
- using 940k reflector IPs
This changed a couple of days ago when we noticed an unusually large SSDP amplification. It's worth deeper investigation since it crossed the symbolic threshold of 100 Gbps.
The packets per second chart during the attack looked like this:

The bandwidth usage:

This packet flood lasted 38 minutes. According to our sampled netflow data it utilized 930k reflector servers. We estimate that the during 38 minutes of the attack each reflector sent 112k packets to Cloudflare.
The reflector servers are across the globe, with a large presence in Argentina, Russia and China. Here are the unique IPs per country:
$ cat ips-nf-ct.txt|uniq|cut -f 2|sort|uniq -c|sort -nr|head
439126 CN
135783 RU
74825 AR
51222 US
41353 TW
32850 CA
19558 MY
18962 CO
14234 BR
10824 KR
10334 UA
9103 IT
...
The reflector IP distribution across ASNs is typical. It pretty much follows the world’s largest residential ISPs:
$ cat ips-nf-asn.txt |uniq|cut -f 2|sort|uniq Continue reading
The 5G buzz is building and along with it are projections that some 5G networks will launch in 2018, with more widespread deployment in 2019. The launch of 5G networks will contribute to the large-scale proliferation of Internet of Things (IoT) devices.
Netscout has been building its packet broker business through acquisitions.