Shell shock rescue – Tracing a bandwidth spike to outbound DDoS through the infamous Bash vulnerability
“This definitely is a problem with your monitoring system! I never used this bandwidth. I was on holiday!”
The accounts department of the data center we managed referred this customer concern to us. His un-managed dedicated server showed a bandwidth spike of 20 times the normal usage, and had resulted in bandwidth overages charges.
The monitoring system was showing perfect stats for all other servers, and it looked like something that happened in the customer’s server.