Google, Facebook, and Yahoo untrusted connection problem

So, one morning I tried to open google then...

Google using an untrusted connection problem

Strange. What would be causing that. and for some reason, Firefox says that:

Potchiz? What is Potchiz

Firefox says that the certificate is for www.potchiz.pw, potchiz.pw. Googling for the site gives one unhelping link. Going to the address gives a blank page. Netcraft gives www.potchiz.com a risk rating of 10/10. Seems like it's an attack page. According to netcraft, it is a US based website from Palau. More info:

Netcraft analysis for www.potchiz.pw

I will be investigating more on this problem. Maybe my machine got infected by a virus.

UPDATE:

I have tried pinging Google, Facebook, and Youtube using my laptop that has the problem. A curious thing happened: all of the IP addresses where the ping program connects to is 199.59.62.24 - which is www.potchiz.pw. In other words, Firefox and presumably IE connects to the same IP - the same site - www.potchiz.pw. After directly typing the IP of google in the address bar (I used 173.194.127.48), I got access to google.

UPDATE:
I found the problem. It turns out my hosts file has been modified. The hosts file can be found in C:\Windows\System32\drivers\etc
My hosts file turned into like this:

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#    127.0.0.1       localhost
#    ::1             localhost
199.59.62.24    www.malwaretips.com
199.59.62.24    malwareremovalguides.info
199.59.62.24    onlinevirusrepair.com
199.59.62.24    enigmasoftware.com
199.59.62.24    pcrisk.com
199.59.62.24    malwarebytes.org/
199.59.62.24    tomshardware.co.uk
199.59.62.24    malwaretips.com
199.59.62.24    answers.yahoo.com
199.59.62.24    www.malwareremovalguides.info
199.59.62.24    www.onlinevirusrepair.com
199.59.62.24    www.enigmasoftware.com
199.59.62.24    www.pcrisk.com
199.59.62.24    guides.yoosecurity.com
199.59.62.24    www.malwarebytes.org/
199.59.62.24    www.tomshardware.co.uk
199.59.62.24    www.gmail.com
199.59.62.24    gmail.com
199.59.62.24    www.hotmail.com
199.59.62.24    hotmail.com
199.59.62.24    www.mail.ru
199.59.62.24    mail.ru
199.59.62.24    www.torrentz.eu
199.59.62.24    torrentz.eu
199.59.62.24    www.kat.ph
199.59.62.24    kat.ph
199.59.62.24    www.thepiratebay.se
199.59.62.24    thepiratebay.se
199.59.62.24    www.thepiratebay.org
199.59.62.24    thepiratebay.org
199.59.62.24    www.ehow.com
199.59.62.24    ehow.com
199.59.62.24    www.imeetzu.com
199.59.62.24    imeetzu.com
199.59.62.24    www.omegle.com
199.59.62.24    omegle.com
199.59.62.24    www.runescape.com
199.59.62.24    runescape.com
199.59.62.24    google.com
199.59.62.24    www.google.com
199.59.62.24    leagueoflegends.com
199.59.62.24    www.leagueoflegends.com
199.59.62.24    www.google.ae
199.59.62.24    www.google.com.af
199.59.62.24    www.google.com.ag
199.59.62.24    www.google.off.ai
199.59.62.24    www.google.am
199.59.62.24    www.google.com.ar
199.59.62.24    www.google.as
199.59.62.24    www.google.at
199.59.62.24    www.google.com.au
199.59.62.24    www.google.az
199.59.62.24    www.google.ba
199.59.62.24    www.google.com.bd
199.59.62.24    www.google.be
199.59.62.24    www.google.bg
199.59.62.24    www.google.com.bh
199.59.62.24    www.google.bi
199.59.62.24    www.google.com.bo
199.59.62.24    www.google.com.br
199.59.62.24    www.google.bs
199.59.62.24    www.google.co.bw
199.59.62.24    www.google.com.bz
199.59.62.24    www.google.ca
199.59.62.24    www.google.cd
199.59.62.24    www.google.cg
199.59.62.24    www.google.ch
199.59.62.24    www.google.ci
199.59.62.24    www.google.co.ck
199.59.62.24    www.google.cl
199.59.62.24    www.google.cn
199.59.62.24    www.google.com.co
199.59.62.24    www.google.co.cr
199.59.62.24    www.google.com.cu
199.59.62.24    www.google.cz
199.59.62.24    www.google.de
199.59.62.24    www.google.dj
199.59.62.24    www.google.dk
199.59.62.24    www.google.dm
199.59.62.24    www.google.com.do
199.59.62.24    www.google.com.ec
199.59.62.24    www.google.ee
199.59.62.24    www.google.com.eg
199.59.62.24    www.google.es
199.59.62.24    www.google.com.et
199.59.62.24    www.google.fi
199.59.62.24    www.google.com.fj
199.59.62.24    www.google.fm
199.59.62.24    www.google.fr
199.59.62.24    www.google.ge
199.59.62.24    www.google.gg
199.59.62.24    www.google.com.gi
199.59.62.24    www.google.gl
199.59.62.24    www.google.gm
199.59.62.24    www.google.gr
199.59.62.24    www.google.com.gt
199.59.62.24    www.google.gy
199.59.62.24    www.google.com.hk
199.59.62.24    www.google.hn
199.59.62.24    www.google.hr
199.59.62.24    www.google.ht
199.59.62.24    www.google.hu
199.59.62.24    www.google.co.id
199.59.62.24    www.google.ie
199.59.62.24    www.google.co.il
199.59.62.24    www.google.co.im
199.59.62.24    www.google.co.in
199.59.62.24    www.google.is
199.59.62.24    www.google.it
199.59.62.24    www.google.co.je
199.59.62.24    www.google.com.jm
199.59.62.24    www.google.jo
199.59.62.24    www.google.co.jp
199.59.62.24    www.google.co.ke
199.59.62.24    www.google.kg
199.59.62.24    www.google.co.kr
199.59.62.24    www.google.kz
199.59.62.24    www.google.li
199.59.62.24    www.google.lk
199.59.62.24    www.google.co.ls
199.59.62.24    www.google.lt
199.59.62.24    www.google.lu
199.59.62.24    www.google.lv
199.59.62.24    www.google.com.ly
199.59.62.24    www.google.co.ma
199.59.62.24    www.google.md
199.59.62.24    www.google.mn
199.59.62.24    www.google.ms
199.59.62.24    www.google.com.mt
199.59.62.24    www.google.mu
199.59.62.24    www.google.mw
199.59.62.24    www.google.com.mx
199.59.62.24    www.google.com.my
199.59.62.24    www.google.com.na
199.59.62.24    www.google.com.nf
199.59.62.24    www.google.com.ng
199.59.62.24    www.google.com.ni
199.59.62.24    www.google.nl
199.59.62.24    www.google.no
199.59.62.24    www.google.com.np
199.59.62.24    www.google.nr
199.59.62.24    www.google.nu
199.59.62.24    www.google.co.nz
199.59.62.24    www.google.com.om
199.59.62.24    www.google.com.pa
199.59.62.24    www.google.com.pe
199.59.62.24    www.google.com.ph
199.59.62.24    www.google.com.pk
199.59.62.24    www.google.pl
199.59.62.24    www.google.pn
199.59.62.24    www.google.com.pr
199.59.62.24    www.google.pt
199.59.62.24    www.google.com.py
199.59.62.24    www.google.com.qa
199.59.62.24    www.google.ro
199.59.62.24    www.google.rw
199.59.62.24    www.google.com.sa
199.59.62.24    www.google.com.sb
199.59.62.24    www.google.sc
199.59.62.24    www.google.se
199.59.62.24    www.google.com.sg
199.59.62.24    www.google.sh
199.59.62.24    www.google.si
199.59.62.24    www.google.sk
199.59.62.24    www.google.sn
199.59.62.24    www.google.sm
199.59.62.24    www.google.com.sv
199.59.62.24    www.google.co.th
199.59.62.24    www.google.com.tj
199.59.62.24    www.google.tm
199.59.62.24    www.google.to
199.59.62.24    www.google.tp
199.59.62.24    www.google.com.tr
199.59.62.24    www.google.tt
199.59.62.24    www.google.com.tw
199.59.62.24    www.google.com.ua
199.59.62.24    www.google.co.ug
199.59.62.24    www.google.com.uy
199.59.62.24    www.google.co.uz
199.59.62.24    www.google.com.vc
199.59.62.24    www.google.co.ve
199.59.62.24    www.google.vg
199.59.62.24    www.google.co.vi
199.59.62.24    www.google.com.vn
199.59.62.24    www.google.vu
199.59.62.24    www.google.ws
199.59.62.24    www.google.co.za
199.59.62.24    www.google.co.zm
199.59.62.24    google.ae
199.59.62.24    google.com.af
199.59.62.24    google.com.ag
199.59.62.24    google.off.ai
199.59.62.24    google.am
199.59.62.24    google.com.ar
199.59.62.24    google.as
199.59.62.24    google.at
199.59.62.24    google.com.au
199.59.62.24    google.az
199.59.62.24    google.ba
199.59.62.24    google.com.bd
199.59.62.24    google.be
199.59.62.24    google.bg
199.59.62.24    google.com.bh
199.59.62.24    google.bi
199.59.62.24    google.com.bo
199.59.62.24    google.com.br
199.59.62.24    google.bs
199.59.62.24    google.co.bw
199.59.62.24    google.com.bz
199.59.62.24    google.ca
199.59.62.24    google.cd
199.59.62.24    google.cg
199.59.62.24    google.ch
199.59.62.24    google.ci
199.59.62.24    google.co.ck
199.59.62.24    google.cl
199.59.62.24    google.cn
199.59.62.24    google.com.co
199.59.62.24    google.co.cr
199.59.62.24    google.com.cu
199.59.62.24    google.cz
199.59.62.24    google.de
199.59.62.24    google.dj
199.59.62.24    google.dk
199.59.62.24    google.dm
199.59.62.24    google.com.do
199.59.62.24    google.com.ec
199.59.62.24    google.ee
199.59.62.24    google.com.eg
199.59.62.24    google.es
199.59.62.24    google.com.et
199.59.62.24    google.fi
199.59.62.24    google.com.fj
199.59.62.24    google.fm
199.59.62.24    google.fr
199.59.62.24    google.ge
199.59.62.24    google.gg
199.59.62.24    google.com.gi
199.59.62.24    google.gl
199.59.62.24    google.gm
199.59.62.24    google.gr
199.59.62.24    google.com.gt
199.59.62.24    google.gy
199.59.62.24    google.com.hk
199.59.62.24    google.hn
199.59.62.24    google.hr
199.59.62.24    google.ht
199.59.62.24    google.hu
199.59.62.24    google.co.id
199.59.62.24    google.ie
199.59.62.24    google.co.il
199.59.62.24    google.co.im
199.59.62.24    google.co.in
199.59.62.24    google.is
199.59.62.24    google.it
199.59.62.24    google.co.je
199.59.62.24    google.com.jm
199.59.62.24    google.jo
199.59.62.24    google.co.jp
199.59.62.24    google.co.ke
199.59.62.24    google.kg
199.59.62.24    google.co.kr
199.59.62.24    google.kz
199.59.62.24    google.li
199.59.62.24    google.lk
199.59.62.24    google.co.ls
199.59.62.24    google.lt
199.59.62.24    google.lu
199.59.62.24    google.lv
199.59.62.24    google.com.ly
199.59.62.24    google.co.ma
199.59.62.24    google.md
199.59.62.24    google.mn
199.59.62.24    google.ms
199.59.62.24    google.com.mt
199.59.62.24    google.mu
199.59.62.24    google.mw
199.59.62.24    google.com.mx
199.59.62.24    google.com.my
199.59.62.24    google.com.na
199.59.62.24    google.com.nf
199.59.62.24    google.com.ng
199.59.62.24    google.com.ni
199.59.62.24    google.nl
199.59.62.24    google.no
199.59.62.24    google.com.np
199.59.62.24    google.nr
199.59.62.24    google.nu
199.59.62.24    google.co.nz
199.59.62.24    google.com.om
199.59.62.24    google.com.pa
199.59.62.24    google.com.pe
199.59.62.24    google.com.ph
199.59.62.24    google.com.pk
199.59.62.24    google.pl
199.59.62.24    google.pn
199.59.62.24    google.com.pr
199.59.62.24    google.pt
199.59.62.24    google.com.py
199.59.62.24    google.com.qa
199.59.62.24    google.ro
199.59.62.24    google.ru
199.59.62.24    google.rw
199.59.62.24    google.com.sa
199.59.62.24    google.com.sb
199.59.62.24    google.sc
199.59.62.24    google.se
199.59.62.24    google.com.sg
199.59.62.24    google.sh
199.59.62.24    google.si
199.59.62.24    google.sk
199.59.62.24    google.sn
199.59.62.24    google.sm
199.59.62.24    google.com.sv
199.59.62.24    google.co.th
199.59.62.24    google.com.tj
199.59.62.24    google.tm
199.59.62.24    google.to
199.59.62.24    google.tp
199.59.62.24    google.com.tr
199.59.62.24    google.tt
199.59.62.24    google.com.tw
199.59.62.24    google.com.ua
199.59.62.24    google.co.ug
199.59.62.24    google.co.uk
199.59.62.24    google.com.uy
199.59.62.24    google.co.uz
199.59.62.24    google.com.vc
199.59.62.24    google.co.ve
199.59.62.24    google.vg
199.59.62.24    google.co.vi
199.59.62.24    google.com.vn
199.59.62.24    google.vu
199.59.62.24    google.ws
199.59.62.24    google.co.za
199.59.62.24    google.co.zm
199.59.62.24    www.youtube.com
199.59.62.24    youtube.com
199.59.62.24    msn.com
199.59.62.24    facebook.com
199.59.62.24    www.facebook.com
199.59.62.24    www.yahoo.com
199.59.62.24    yahoo.com
199.59.62.24    www.hotmail.com
199.59.62.24    hotmail.com
199.59.62.24    www.bing.com
199.59.62.24    bing.com
199.59.62.24    www.twitter.com
199.59.62.24    twitter.com
199.59.62.24    myspace.com
199.59.62.24    192.168.1.254
199.59.62.24    127.0.0.1
199.59.62.24    localhost
199.59.62.24    www.wordpress.org
199.59.62.24    wordpress.org
199.59.62.24    wikipedia.org
199.59.62.24    www.wikipedia.org
199.59.62.24    www.ask.com
199.59.62.24    ask.com
199.59.62.24    www.search.aol.com
199.59.62.24    search.aol.com
199.59.62.24    www.mywebsearch.com
199.59.62.24    mywebsearch.com
199.59.62.24    www.blekko.com
199.59.62.24    blekko.com
199.59.62.24    blogspot.com
199.59.62.24    wordpress.com
199.59.62.24    live.com
199.59.62.24    www.live.com
199.59.62.24    linkedin.com
199.59.62.24    www.linkedin.com
199.59.62.24    www.baidu.com
199.59.62.24    baidu.com
199.59.62.24    www.qq.com
199.59.62.24    qq.com
199.59.62.24    www.ebay.com
199.59.62.24    ebay.com
199.59.62.24    www.amazon.com
199.59.62.24    amazon.com
199.59.62.24    www.tumblr.com
199.59.62.24    tumblr.com
199.59.62.24    www.paypal.com
199.59.62.24    paypal.com
199.59.62.24    imdb.com
199.59.62.24    www.imdb.com
199.59.62.24    www.steampowered.com
199.59.62.24    steampowered.com
199.59.62.24    www.google.com/search
199.59.62.24    reddit.com
199.59.62.24    www.reddit.com

--END--

Basically, what this means is that for all sites shown above, if you connect to that site it will lead you to 199.59.62.24. That caused Google, Facebook, Youtube, and Yahoo to give that strange Untrusted connection problem. After Deleting those entries, I can now access google and the rest of the sites I had problems with. Now, the question, what program or malware changed my hosts file? Is it still in my laptop? McAfee found nothing, Malwarebytes Found nothing. So, I should be safe now.