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Hidden Tear is the first open-source ransomware trojan that targets computers running Microsoft Windows [1] The original sample was posted in August 2015 to GitHub. [2]When Hidden Tear is activated, it encrypts certain types of files using a symmetric AES algorithm, then sends the symmetric key to the malware's control servers. [3]
Initially, only the .locky file extension was used for these encrypted files. Subsequently, other file extensions have been used, including .zepto, .odin, .aesir, .thor, and .zzzzz. After encryption, a message (displayed on the user's desktop) instructs them to download the Tor browser and visit a specific criminal-operated Web site for further ...
vx-underground, also known as VXUG, is an educational website about malware and cybersecurity. [1] [2] It claims to have the largest online repository of malware. [3]The site was launched in May, 2019 and has grown to host over 35 million pieces of malware samples.
Windows: Microsoft Windows 7 SP1 or later. 1GB RAM and 100 megabytes of free hard disk space, 1.80 GHz or faster 2 cores and x86/x64 compatible architectures. One PC per purchase. One PC per purchase.
Jigsaw was designed in April 2016 and released a week after creation. [1] It was designed to be spread through malicious attachments in spam emails. [3] Jigsaw is activated if a user downloads the malware program which will encrypt all user files and master boot record. [4]
Encrypting ransomware reappeared in September 2013 with a Trojan known as CryptoLocker, which generated a 2048-bit RSA key pair and uploaded in turn to a command-and-control server, and used to encrypt files using a whitelist of specific file extensions.