  Over the last two decades, the scale and complexity of the Internet and its
associated technologies built on the World Wide Web has grown exponentially
with access to Internet as a facility occupying a prime place with other
amenities of modern lives. In years to come, usage of Internet may unravel more
pleasant surprises for us as far as novelty in its usage is concerned. As a
democratic function of Internet, and relying on the open model on which it has
been built, there has been concerted efforts in the direction of privacy
protection and use of privacy enhancing tools which have gained tangible
traction. Innovation in use of VPN, TLS/SSL and cryptographic tools are a
testimony to it. Another popular tool is Tor, which has gained widespread
popularity as it is being increasingly used by anonymity seeking users to
effectively maintain their discretion while surfing the web.
  However, there is a darker side to increased proliferation of Internet in our
everyday routine. We are certainly not living in a utopian age and there are
potentials of misuse of Internet as well. Across every nook and cranny of
Internet's sprawling virtual world, there are cyber criminals lurking n
dangerous alleys to use the very same Internet as malevolent tool to abuse it
and cause financial, physical and social harm to ordinary people. Failing to
manage the widespread spawning of World Wide Web has rendered it weak against
misuse. In last few decades especially, Internet has been inundated with
malware, ransomware, viruses, Trojans, illegal spy tools and what not created
with malignant sentiments. In this paper, we will analyze few of the subverting
privacy infrastructures.
