The other day you were watching the news and you heard a journalist talking about a new type of cyber-threat.


3::Ransomware
2::CryptoLocker
1::Botnet

This is the correct answer indeed. Ransomware are an emerging family of malicious software (malware) used by attackers to restrict access to computer systems or data. For instance a ransomware can restrict access to user’s file by using encryptions. The attackers requires then a “ransom” to be paid for opening up again (decrypting) the file. Today, the vast majority of phishing e-mails are ramsonware (e.g. you receive an email containing an attached document which serves as a downloader to covertly fetch the final malware). Note that the CryptoLocker is an example of a ransomware.

For more information about the level of threat related with ransomware (and other threats), you can consult the ENISA Threat Landscape Report (p. 45), available here: https://www.enisa.europa.eu/publications/etl2015

 

This answer is partially correct. The correct answer in this scenario is Ransomware: a family of emerging malicious software (malware) used by attackers to restrict access to computer systems or data. For instance a ransomware can restrict access to user’s file by using encryptions. The attackers requires then a “ransom” to be paid for opening up again (decrypting) the file. Today, the vast majority of phishing e-mails are ramsonware (e.g. you receive an email containing an attached document which serves as a downloader to covertly fetch the final malware).

The CryptoLocker is an example of a ransomware and this is why this answer is considered partially correct. For some generic information about CryptoLocker see this article from the Guardian: https://www.theguardian.com/money/2013/oct/19/cryptolocker-attacks-computer-ransomeware

For more information about the level of threat related with ransomware (and other threats), you can consult the ENISA Threat Landscape Report (p. 45), available here: https://www.enisa.europa.eu/publications/etl2015

 

This is not the correct answer; a botnet is a network of infected computers that can be used for illegal (e.g. cyber-criminal) activities without their owner’s knowledge. The correct answer is Ransomware: a family of emerging malicious software (malware) used by attackers to restrict access to computer systems or data. For instance a ransomware can restrict access to user’s file by using encryptions. The attackers requires then a “ransom” to be paid for opening up again (decrypting) the file. Today, the vast majority of phishing e-mails are ramsonware (e.g. you receive an email containing an attached document which serves as a downloader to covertly fetch the final malware).

For more information about the level of threat related with ransomware (and other threats), you can consult the ENISA Threat Landscape Report (p. 45), available here:

https://www.enisa.europa.eu/publications/etl2015

 


Essentially criminals seem to be able to use malicious software to restrict users from accessing their computer system or personal files. Later criminals demand a payment in order for the restriction to be removed.

What is the name of this new emerging threat?