The transmission doesn't go unnoticed, as one of ships that has stopped for self-repairs in a nearby system picks it up.
THe captain is quickly called to make a decision. Looking at his tired crew, he decides he is ill-equipped for anything that could be hostile, so he decides to just relay the message over secure chanels to the nearest, fresh ship that is better preppared. Soon, the repairs are finished, and the ship leaves.
"Sir, awaiting orders."
"Send in the drone. If we lose contact we come in ourselves."
"Understood. Drone is launched.... Leaving the system in 5... 4... 3... 2... 1..-"
In the system where the drone originated from, a single craft exits FTL, scanning the system.