I have no idea how seriously to take all of this, but it is leaving me entirely shaken and paranoid as I am knowledgeable, but not entirely.
A user of 19 years old found it funny to begin attacking me by (either) DoS or DDoS attacks, shutting down my Internet for 2-5 minutes at a time. He additionally said that he sent this "malformed packet which rebroadcasts itself over the network and contains tracking malware" to my router. My router is an RT-N66U and I had the hardware firewall enabled during the attacks in addition to the basic Windows 7 firewalls. Remote management is disabled as are AiCloud as I heard this had severe security issues in the past.
I am on Comcast, thus I am not simply allowed to restart the modem and get a new IP, so I am using the trick where I change the MAC address on the router to force get a new IP address from Comcast and it has worked.
Since the user found my IP by Skype, I have closed the account so presumably, there is no way to get my IP by Skype anymore.
I also scanned all of my Windows 7 machines using Malwarebytes, GMER, MBAR, AdwCleaner, TDSSKiller with zero infected items found by all programs. All machines have the latest Windows updates. I would almost definitely say that my machines are not internally affected, say for this "malformed packet which rebroadcasts itself over the network and contains tracking malware".
Yesterday after doing all of this, my Internet went down for about 5 minutes, but I could still access my router's management panel, so I don't know if it was just a coincidence. Perhaps I am super-paranoid at this point.
My question is, is it even possible to send this "malformed packet which rebroadcasts itself over the network and contains tracking malware and isn't a file?". If so, how do I get rid of it? I just assumed out of common sense that even if a packet contains some sort of malware, it has to be written as a file to function(?). Perhaps I'm just ignorant.