Wanna Cry? Protect your Business from Ransomeware.
On 12 May 2017, a new ransomware variant that spread rapidly throughout the day. It is a highly virulent strain of a self-replicating ransomware that has impacted such far-flung organizations as the Russian Interior Ministry, Chinese universities, Hungarian and Spanish telcos, and hospitals and clinics run by the British National Health Services. It is especially notable for its multi-language ransom demands that support more than two-dozen languages. (A. Lakhani., Fortinet Blog, 13 May 2017)
Ransomware is a type of malicious software that carries out the cryptoviral extortion attack from crypto-virology that blocks access to data until a ransom is paid and displays a message requesting payment to unlock it. Simple ransomware may lock the system in a way which is not difficult for a knowledgeable person to reverse. More advanced malware encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. The ransomware may also encrypt the computer's Master File Table (MFT) or the entire hard drive. Thus, ransomware is a denial-of-access attack that prevents computer users from accessing files since it is intractable to decrypt the files without the decryption key. Ransomware attacks are typically carried out using a Trojan that has a payload disguised as a legitimate file.
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