Follow ukash to bitcoin ukraine link for more information. Ransomware attacks are typically carried out using a Trojan that is disguised as a legitimate file that the user is tricked into downloading or opening when it arrives as an email attachment. Starting from around 2012 the use of ransomware scams has grown internationally. It is called cryptoviral extortion and it was inspired by the fictional facehugger in the movie Alien.
The attacker generates a key pair and places the corresponding public key in the malware. To carry out the cryptoviral extortion attack, the malware generates a random symmetric key and encrypts the victim’s data with it. It uses the public key in the malware to encrypt the symmetric key. This is known as hybrid encryption and it results in a small asymmetric ciphertext as well as the symmetric ciphertext of the victim’s data. The attacker receives the payment, deciphers the asymmetric ciphertext with the attacker’s private key, and sends the symmetric key to the victim. The victim deciphers the encrypted data with the needed symmetric key thereby completing the cryptovirology attack.