The Daily DDoS: Ten Days of Massive Attacks
Back in March my colleague Marek wrote about a Winter of Whopping Weekend DDoS Attacks where we were seeing 400Gbps attacks occurring mostly at the weekends. We speculated that attackers were busy with something else during the week.
This winter we've seen a new pattern, and attackers aren't taking the week off, but they do seem to be working regular hours.
CC BY 2.0 image by Carol VanHook
On November 23, the day before US Thanksgiving, our systems detected and mitigated an attack that peaked at 172Mpps and 400Gbps. The attack started at 1830 UTC and lasted non-stop for almost exactly 8.5 hours stopping at 0300 UTC. It felt as if an attacker 'worked' a day and then went home.
The very next day the same thing happened again (although the attack started 30 minutes earlier at 1800 UTC).
On the third day the attacker started promptly at 1800 UTC but went home a little early at around 0130 UTC. But they managed to peak the attack over 200Mpps and 480Gbps.
And the attacker just kept this up day after day. Right through Thanksgiving, Black Friday, Cyber Monday and into this week. Night after night attacks were peaking Continue reading
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