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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]
The tool is also available as a standalone download. [1] Since support for Windows 2000 ended on July 13, 2010, Microsoft stopped distributing the tool to Windows 2000 users via Windows Update. The last version of the tool that could run on Windows 2000 was 4.20, released on May 14, 2013.
[7] [8] [9] There were 181.5 million ransomware attacks worldwide in the first six months of 2018, 229% more than the first six months of 2017. [10] In June 2014, security software company McAfee released data showing that it had collected more than double the number of ransomware samples that quarter than it had in the same quarter the ...
The malware then creates a file, called "readme_to_decrypt.txt", in every folder. When the instructions are opened, it gives the victim directions on how to decrypt the files, usually demanding a payment of one bitcoin. The ransomware is considered to be a variant of the Linux ransomware Linux.Encoder.1. [2] Warning issued to Transmission users.
LockBit is a cybercriminal group proposing ransomware as a service (RaaS). Software developed by the group (also called ransomware) enables malicious actors who are willing to pay for using it to carry out attacks in two tactics where they not only encrypt the victim's data and demand payment of a ransom, but also threaten to leak it publicly if their demands are not met.
TorrentLocker is a ransomware trojan targeting Microsoft Windows. [ 1 ] [ 2 ] It was first observed in February 2014, with at least five of its major releases made available by December 2014. [ 3 ] The malware encrypts the victim's files in a similar manner to CryptoLocker by implementing symmetric block cipher AES where the key is encrypted ...
Victims of ransomware paid their attackers more than $1 billion last year, a new report has found, a record high.
Hive (also known as the Hive ransomware group) was a ransomware as a service (RaaS) operation carried out by the eponymous cybercrime organization between June 2021 and January 2023. The group's purpose was to attack mainly public institutions to subsequently demand ransom for release of hijacked data.