Staying Protected from Ransomware

What is Ransomware
How it Works
Types of Attacks
How to Detect it

What is Ransomware?

Ransomware is a type of malicious software (malware) that encrypts a victim’s files or data and demands a ransom payment in exchange for restoring access to the files or data.

In other words, it is a form of cyber extortion where the attacker holds the victim’s data hostage and demands payment, usually in the form of cryptocurrency, in order to unlock the files and restore access.

Ransomware typically spreads through various means, such as email attachments, infected websites, or compromised software. Once it infects a system, it encrypts files and displays a ransom note or message, often with a timer or a threat to delete the files if the ransom is not paid within a certain timeframe.

How Does it Work?

How Does it Work?

Bad guys create ransomware themselves or buy/lease it from cyber criminals.

Cybercriminals use social engineering to gain acccess to your networks or systems.

Types of Ransomware Attacks

Encrypting Ransomware

This is the most common type of ransomware attack. It encrypts the victim’s files or data using strong encryption algorithms, rendering them inaccessible without the decryption key, which the attackers hold hostage.

Locker Ransomware

These attacks lock the victims out of their system or device, preventing them from accessing their files, applications, or even the entire system. 

MBR Ransomware

These attacks lock the victims out of their system or device, preventing them from accessing their files, applications, or even the entire system. 

Mobile Ransomware

This ransomware targets mobile devices, such as smartphones and tablets, usually through malicious apps or infected links. Mobile ransomware can encrypt files or lock the device screen, demanding payment to regain access.

DDoS Ransomware

Websites or online services are targeted, flooding them with traffic to overwhelm their servers and make them inaccessible to users. 

Doxware or Leakware

This type of ransomware not only encrypts files but also threatens to publish or leak sensitive information, such as personal data, intellectual property, or confidential documents, unless the ransom is paid.

How to Detect Ransomware

Minimize ransomware vulnerability by educating employees about cybersecurity risks and best practices, and implementing robust security protocols.

Does the link or attachment look unfamiliar or suspicious? 

Do you notice abnormal file behavior?

Is there unusual network traffic?

Are you experiencing unexpected popups or

ransom notes?

Are you suddenly not able to access a file?

Have you been locked out of a system or device?


Backed by Talos

With a team of top-tier researchers, analysts, and engineers, Cisco Talos boasts the title of the world’s largest commercial threat intelligence unit. Their industry-leading visibility, actionable intelligence, and vulnerability research enables them to promptly detect and shield Cisco customers from both established and emerging threats.P

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