ransomware

Ransomware is a type of malware used for data kidnapping , an exploit in which the attacker encrypt s the victim's data and demands payment for the decryption key . A ransomware program can be installed from an e-mail attachment, an infected program, or a compromised or malicious Web site. Data kidnapping is not new, but has in the past usually targeted businesses rather than individuals. Malware used for this purpose is sometimes called a cryptovirus , cryptotrojan or cryptoworm .

In March 2006, ransomware known as Crypzip or Zippo circulated to private users on the Internet. Recipients of the Trojan horse program also received an e-mail demanding $300, to be paid by electronic transfer, for the key required to unlock all their files. Security firm LURHQ, who discovered the exploit, said it was based on a similar scam conducted 15 years ago.

Ransomware is said to have originated in Russia, It and other cyberextortion methods, such as DoS extortion , are becoming more common around the world. To protect against data kidnapping -- and many other online crimes -- experts urge that users back up data regularly, practice cautious browsing and refrain from opening unexpected e-mail attachments.

Last updated on: Apr 13, 2006

>  Enterprise Software related Research & News >  White Papers for the Retail Industry Are you a Know-IT-All? What handy input device did Douglas Englebart invent? Answer  Get the Word of the Day  Follow us on Twitter WORD OF THE DAY... SAP LEARN MORE ABOUT... SAP trends USA Contributors Worldwide Contributors Awards and Recognition Our 60+ tech-specific sites WhatIs.com RSS Feeds