It's hard to say from this distance, but there are a couple possibilities. Both of those "waiting for ..." messages have ties to ships and shipping companies. Kathy C, for example is a boat which apparently can be pinpointed on a map via a web browser. I guess that's the equivalent of tracking a package being delivered by the postal service or a trucking company. But, that's only a guess. Why you got mixed up in that is a good question.
It's a good sign that your AV software didn't discover anything wrong. That does not mean your computer is clean, it just means all the popular infections were not detected. My favorites for investigating such problems are
Malwarebytes --
Dr Webb CureIT -- and
Combofix. If you make it through all three of these without detecting anything, your computer is as safe as the average person can make it. Again, it's not a foolproof set of scans, but pretty darned good.
Your comment that an ad triggered all this is telling. Many viruses do indeed get loaded via fake advertisements. There is a class of problems that are not strictly viruses but certainly a nuisance. This nuisance-ware does things like throw up ads when you least want them and makes changes in your default web pages (to favor their cause). It's hard to get rid of this stuff because it looks legitimate for the most part, but shows up when you want it the least. My three favorites should flag such nuisance software and either remove it automatically or give you the option to delete the PUP (Potentially Unwanted Program).
Being witness to a hacking event is super rare. Those guys go through a tremendous amount of pain to avoid detection. Plus, they do most of their dirty work in less time than it takes to read this sentence. However, if you are still paranoid, there is something simple yet very effective you can do to lock down Loki.
In order to go perusing around your computer the bad guy would have to have administrator privileges. All default user accounts on Windows are administrator accounts. This makes life easy for the hacker in that all he has to do is intercept your password and he is the administrator. To fix that and to free your computer from well over 90% of the known hacking attempts, create and use a new account that is not administrator. So, if that user gets hacked, the bad guy can't do anything significant. If he already has your current administrator credentials, then create a second administrator account and delete the first one. If you have to do some administrating while you are not administrator, Windows will ask for the admin password. You will supply the new one and be on your way. If there was in fact a hacking attempt, that means he not only got your admin account credentials but also your router or Internet access point credentials too. So, obviously, you want to go change those things too. Do you have any devices on your network that need passwords, such as printers or storage for example? Change those too. Make certain you have run all the virus detection scans
before you change accounts information. Oh, and just to be super paranoid, only make those account changes when you are disconnected from the Internet. Unplug your Ethernet wire and/or disable your wireless card. You never know who is listening from out there.
