The time_point representing the current time. time_point is a member type, defined as an alias of time_point<high_resolution_clock>.
Slammer (also known as Sapphire, Helkern or SQLExp) was a worm that appeared in 2003 January and was the fastest-spreading worm of its time. The worm was an extremely simple piece of code and its payload was an unintended byproduct of its spreading ability.
Slammer on the infecting computer sends a UDP datagram to port 1434 on the target. The datagram exploits a buffer overflow vulnerability in the SQL Server Monitor that overwrites the stack and executes the rest of the exploit.