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Linux.Encoder.1
Linux.Encoder.1 (also known as ELF/Filecoder.A and Trojan.Linux.Ransom.A) is considered as the first ransomware Trojan targeting computers running Linux. Discovered on November 5, 2015, by Dr. Web, this malware affected more than 2,000 Linux users.
Linux.Encoder.1 is remotely executed on the victim's computer by using a flaw in Magento, a popular Content management system app. When activated, the malware encrypts certain types of files stored on local and mounted network drives using AES and RSA Public-key cryptography, with the private key stored only on the malware's control servers. The malware then store a file called "readme_to_decrypt.txt" in every folder. The message which offers to decrypt the data if a payment (through Bitcoin) is made. Compared to other ransomware such as CryptoLocker, the malware does not state a deadline to pay and the ransom does not increase over time.
== Discovery ==
On November 5, 2015, Dr. Web, a Russian anti-malware company added to its virus database Linux.Encoder.1. The company then published the malware description the day after. This ransomware is written in C using the PolarSSL library.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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