Virus.DOS.PSFL

The virus contains the text strings:

[WowWowGirl]
[ PSFL ]

[Knuxfan]

The bytes free actually decreases with an infection, failed to hide that.

[pokemaster]

I don't know why but I find these so interesting! XD

[lmngr]

You forgot the 'hello everyone'.

[moto]

Poor graphics.com, always gettin picked on, always gettin infected...

[totalminecraftlol]

when you say that we cant see any file size increase I think we can actually see the overall freespace decrease below the file size, correct me if im wrong im not an expert on dos

[Zestypanda]

The noise you hear is the hard drives self parking mechanism.

[templet]

danooct1: just wanted to say I've loved your keyboard since I first started watching your videos and just ordered one off of the internet :)

[Akie_Old]

How can someone hate you dan ? :(
This virus is quite evil

[MilanorTSW]

This is mostly so that the virus can sit there quietly for some time and infect more files -> more machines.

[TheCanadianToast]

H                 A

T                  E

Good virus... lol.

[ikyokyo]

And what about Virus.DOS.Excess mixes with Cascade? It seems that Cascade virus doesn't affect table lines and Excess has a table filled with text, would the table keeps the text inside it from dropping down?

[JazzyHamster_ar]

I would've shitted bricks if I happened to run that on my PC and the HDD went scary-noisy

[iwamineshuu]

I have a question that might be pretty dumb; but alas I'm a stupid idiot.

For a virus to affect anything, does it need to be run by the user at least once? Or is that just how Dan does it in these videos to be a more controlled setting? Can the presence of a file on a computer alone without the user directly executing it cause it to do it's payload? 

[ikyokyo]

What would happen if this virus mixed with Cascade DOS Virus? Would the H and A drop down to the bottom?

[chrisclark]

Look at the bytes free that goes lower

[zubirhusein]

The bytes free was decreasing even though they virus was hiding file size increases

[shonarts]

danooct1 Will you ever look at BonziBUDDY? 

[emralcrewrblox]

Wait, why did the PC do a mem check, it doesn't usally

[jonathanpiedra]

So, what was the comment that the title is based off of?

[jagger]

Hey, since I'm around virus and worm enthusiasts, I'll ask you and your audience a question, Dannoct1. I don't feel like joining a forum, so I'll leave this here. Two of my computers have gotten some kind of keyboard disabling virus. My two laptops have random keys disabled now. One has G and H disabled, the other is I, P, W, E, etc.

How I know it's not mechanical? The problem showed up at the same time in both computers, and loads of keys were disabled at the same time.

I have run virus scans, even in safemode, and nothing. Searching online lead me to simmilar viruses, but those disable the keyboard completely.

Anyone have some kind of clue to what this might be? Any tips to find the virus?