Ransomware is a type of malware that encrypts files on a computer and demands payment to regain access. It first emerged in 2013 and spread internationally from Russia. There are three main types: encryption ransomware encrypts personal files, lock screen ransomware locks the computer screen until payment is made, and master boot ransomware interrupts the normal boot process. Ransomware typically enters systems through email attachments, compromised online advertisements, or unpatched security vulnerabilities. It can encrypt files and lock access. To protect against ransomware, users should back up files, keep systems updated, use antivirus software, enable firewalls, and install third-party security programs. Being cautious about suspicious links and attachments is key to prevention.

1. RANSOMEWARE!
What is it and how you can protect yourself?
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2. Presented by:
Titas Sarker
Founder (Tsoft IT)
IT Training on Documentation and Security
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3. LCMC
Agenda Page no
What is Ransomeware? 04
History of Ransomeware 05
Types of Ransomeware 06-09
How Ransomeware affects our systems? 10-13
How to secure ourselves? 14-15
Conclusion/Summery 16
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4. What is Ransomeware?
Ransomeware is a type of malware that encrypts files of your computers
and demands the user pay a price for the files to be available again.
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5. History of Ransomeware
First reported occurrence in 2013. Initially popular in Russia but quickly went
Internationally.
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6. Types of Ransomeware
• Encryption Ransomeware
• Lock Screen Ransomeware
• Master boot Ransomeware
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7. Encryption Ransomeware
• Encrypts personal files/folders(Documents, Image, videos)
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8. Lock Screen Ransomeware
• Locks the screen and demand payment
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9. Master boot Ransomeware
• Ransomeware changes the computer’s MBR so the normal boot process is
interrupted.
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10. How Ransomeware affects our systems?
• Attachments
• Advertisements
• Security holes
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11. How Ransomeware affects our systems?
Attachments : Most come through as ZIP files or invoices
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12. How Ransomeware affects our systems?
Advertisements :Online ad networks are often targeted and share contents.
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13. How Ransomeware affects our systems?
• Security holes : Flash, Macros( Word, Outlook)
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14. How to secure ourselves?
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15. How to secure ourselves?
• Keep backup
• Security holes (Software patches, Updates)
• Antivirus- (MSE, Trend Micro, Defender)
• Firewall
• Third Party Software- RogueKiller, Hitman Pro
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16. Conclusion/Summery
Be careful what you click!!
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17. THANK YOU!
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