I have dreams about this stuff almost a little too often. Not always, but it happens. It's wild. All this stuff being somehow magically hard to remove, constantly witnessing an "older computer that suddenly is infected with malware and keeps downloading other malicious software and adware", whilst having the strange desire to use an older computer for ad hoc reasons, EVEN if it is allegedly removed from the internet, I guess. And it DOES stem deeply back to a time where even *I* had viruses and trojans infect my computer over the course of 5-10 years as a child. The fact that it happens now is just... unnerving.
In Security+ (1.2) you gave this explanation of a Virus vs. a Worm: "The virus needs a human being to start the process, whereas a worm can jump from machine to machine without any human intervention whatsoever. Once the end user has launched the executable that starts the virus, it can use the existing file system or the network to replicate itself." In this video you are not mentioning Worms (not in the 1102 objectives), but only Viruses and the definition you give for a Virus is that of a Worm. Is this not correct or does CompTIA define these terms differently in both exams? For the sake of 1102, should I use the definition you gave in this video for Virus or carry on using the definition from Security+? Thanks.
It can be hard to tell. Probably the most obvious would be that most rootkits are usually controlled remotely. So using a tool like TCP view would probably reveal some sort of process running that is communicating without your permission. The easiest way to remove a rootkit is by having a competent AV, such as BitDefender or Kaspersky, which will scan the boot sectors, UEFI, etc, for rootkits.
