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Bitdefender and NinjaOne announced a partnership in May 2024 to integrate their security software into a single product suite. [26] The company also releases free decryption tools for victims of ransomware attacks, including the BitLocker-abusing ShrinkLocker ransomware in 2024. [27] Bitdefender also conducts research through Bitdefender Labs ...
REvil (Ransomware Evil; also known as Sodinokibi) was a Russia-based [1] or Russian-speaking [2] private ransomware-as-a-service (RaaS) operation. [3] After an attack, REvil would threaten to publish the information on their page Happy Blog unless the ransom was received.
In June of 2023, Avast released a decryptor for the Akira ransomware, likely exploiting the partial file encryption approach used at the time to crack the encryption without obtaining any keys. [18] The decryptor does not work natively on Linux systems, and if needed it is recommended to use a WINE layer to run the decryptor on a Linux machine.
There are a number of tools intended specifically to decrypt files locked by ransomware, although successful recovery may not be possible. [2] [157] If the same encryption key is used for all files, decryption tools use files for which there are both uncorrupted backups and encrypted copies (a known-plaintext attack in the jargon of cryptanalysis.
Because of the use of the timestamp as a seed for creating the keys and the IV for encryption, decryption of files encrypted by the ransomware is trivial given that the original timestamp information is kept intact. Researchers at Bitdefender Labs have found and exploited this weakness to recover the files without having to pay the criminals. [3]
The CryptoLocker ransomware attack was a cyberattack using the CryptoLocker ransomware that occurred from 5 September 2013 to late May 2014. The attack utilized a trojan that targeted computers running on Microsoft Windows , [ 1 ] and was believed to have first been posted to the Internet on 5 September 2013. [ 2 ]
KeRanger (also known as OSX.KeRanger.A) is a ransomware trojan horse targeting computers running macOS. Discovered on March 4, 2016, by Palo Alto Networks , it affected more than 7,000 Mac users. KeRanger is remotely executed on the victim's computer from a compromised installer for Transmission , a popular BitTorrent client downloaded from the ...
The victim needs the symmetric key to decrypt the encrypted files if there is no way to recover the original files (e.g., from backups). The 1996 IEEE paper predicted that cryptoviral extortion attackers would one day demand e-money, long before Bitcoin even existed. Many years later, the media relabeled cryptoviral extortion as ransomware.
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