All DDoS Definitions
DDoS Testing Definition

RUDY Attack (R-U-Dead-Yet)

A RUDY attack (R-U-Dead-Yet) is a Layer 7 slow attack vector, one of the low-bandwidth classes a thorough DDoS test is built to exercise. It is the slow-POST counterpart to Slowloris: the attacker submits an HTTP POST with a large declared Content-Length, then dribbles the request body to the server one byte at a time over a long interval. The server keeps each connection and its worker thread open waiting for a body that arrives glacially. A handful of these starved POSTs can tie up the entire connection pool while generating almost no traffic.

RUDY: a slow POST body that never finishes arriving Slow POST request POST /upload Content-Length: 10000000 body sent 1 byte per long interval near-zero traffic a few of these are enough holds a worker Worker thread pool waiting for body waiting for body waiting for body pool exhausted no free workers no slot Legit user request stalls The slow-POST counterpart to Slowloris: it exploits the server's willingness to wait, not its bandwidth A test characterizes how many slow POSTs exhaust the workers and whether request-body timeouts and rate floors are set. BlackNeuron™
A RUDY attack sends an HTTP POST with a large declared Content-Length then dribbles the body one byte at a time, holding every worker thread until the connection pool is exhausted.

Why it matters in DDoS testing

RUDY exploits the server's willingness to wait, so it bypasses defenses that key on request volume or bandwidth. A test characterizes how many slow POSTs it takes to exhaust available workers, whether request-body timeouts and minimum-data-rate thresholds are configured, and how a reverse proxy that buffers full requests before forwarding changes the outcome. Slow attacks reward strict timeout discipline, which is why they appear in understanding DDoS attack vectors.