why is my internet slow virus? or ISP?

[jetfire]

hello!

so my aunt download some mp3 files. but she also downloaded some .exe which happens to be a virus, there were five of them I think. my avg manage to delete all of it except this one.

http://imgur.com/JDMb5tV
a
Every time I use my chrome then seconds later this shows up

http://imgur.com/5mhokaS

and then my download speed drop, now its really slow


then I used malwarebytes and it found this bitcoinMiner

http://imgur.com/Iv9kqFf

so I deleted it but after a restart its still there! damn

then I tried safe mode no luck still there.

but today is different I tried it on safe mode, delete it again.

then back to normal mode now its gone my avg also detects nothing but my internet connection is still slow

malwarebyte report
http://imgur.com/HIgVSA3

avg report and dl speed
http://imgur.com/2osnXt3

note; my steam dl doesn't change a bit though still fast.
but my torrent, browsing speed, and some direct dl site are really sloooow

so whats the problem? my pc or isp or maybe my router?

my router disconnect me sometimes and i cant tell its my router because it give me the red light of doom then after few minutes I'm online again.