The recent WannaCry ransomware attack, that has affected
millions of computer systems around the world, has left
organizations and individuals concerned about the safety and
security of their digital information. Part reason for the
unprecedented spread of this attack is lack of awareness about
ransomware and about tackling it.
Ransomware prevents or restricts access to user files, typically
in three ways: user screen lockdown, user file encryption, and
remote access and control of victim's system through a command
and control centre. In many cases, victims may have to pay a
'ransom' or 'release fee' through a digital payment
gateway in order to re-gain access to their systems. However, in
our experience there is no guarantee of regaining system access
even after the ransom money is paid. Many victims of the WannaCry
ransomware have also faced this problem, even after having paid up
to 300 Bitcoins (approx. INR 4.12 crore) as release fee.
