Ransomware is a type of malicious software that blocks access to data or threatens to publish it until a ransom is paid. Simple ransomware may lock the system in a way which is not difficult for a knowledgeable person to reverse. More advanced malware uses a technique called cryptoviral extortion, in which it encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them and ransomware attacks 2017

2. Ransomware has been a growing trend for the past two years,
and this is just a culmination, a grand reveal to the wider world of
just how big of a threat it is. But we’ve been writing about this for
a while now.
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3. There are 2 Types of Ransomware in
Circulation:
1. Encryptors, which incorporates advanced encryption
algorithms. It’s designed to block system files and demand payment
to provide the victim with the key that can decrypt the blocked
content
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4. Examples: Crypto Locker, Locky,
CrytpoWall and more.
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5. 2. Some locker versions infect the Master Boot Record (MBR). The MBR is
the section of a PC’s hard drive which enables the operating system to boot
up. When MBR ransomware strikes, the boot process can’t complete as usual
and prompts a ransom note to be displayed on the screen.
Examples include Satana and Petya

6. Why Ransomware creators and
distributors target businesses:
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7. • Because that’s where the money is;
• Because attackers know that a successful infection can
cause major business disruptions, which will increase
their chances of getting paid;
• Because computer systems in companies are often
complex and prone to vulnerabilities that can be exploited
through technical means;
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8. • Because the human factor is still a huge liability which can
also be exploited, but through social engineering tactics;
• Because ransomware can affect not only computers but
also servers and cloud-based file-sharing systems, going
deep into a business’s core;
• Because cyber criminals know that business would rather
not report an infection for fear or legal consequences and
brand damage.

12. Most Common infection methods used by
Cybercriminals
• Spam email campaigns that contain malicious links or
attachments (there are plenty of forms that malware can use
for disguise on the web);
• Security exploits in vulnerable software;
• Internet traffic redirects to malicious websites;
• Legitimate websites that have malicious codeinjected in their
web pages;
• Drive-by downloads

13. • Malvertising campaigns;
• SMS messages (when targeting mobile devices);
• Botnets;
• Self-propagation (spreading from one infected computer to
another); WannaCry, for instance, used an exploit kit that
scanned a user’s PC, looking for a certain vulnerability, and
then launched a ransomware attack that targeted it.
• Affiliate schemes in ransomware-as-a-service. Basically, the
developer behind the ransomware earns a cut of the profits
each time a user pays the ransom

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