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Ryuk is a type of ransomware known for targeting large, public-entity Microsoft Windows cybersystems. It typically encrypts data on an infected system, rendering the data inaccessible until a ransom is paid in untraceable bitcoin . [ 1 ]
The operation initially evolved from a National Crime Agency (NCA) investigation into the Russian ransomware group Ryuk. The group conducts ransomware across the world, including the US and the UK. [1] [2] As of December 2024, Ryuk was believed to have raised at least £27 million from 149 organisations based in the UK. [1]
[90] [91] Imperial County, in the U.S. state of California, computer systems are seized by hackers using Ryuk ransomware. [92] May: computer systems belonging to the City of Baltimore are seized by hackers using ransomware known as RobbinHood that encrypts files with a "file-locking" virus, as well as the tool EternalBlue. [93] [94] [95] [96]
Ransomware is a type of malware that encrypts the victim's personal data until a ransom is paid. [1] [2] [3] [4] [5] They commonly use difficult-to-trace digital ...
Emotet is known for renting access to infected computers to ransomware operations, such as the Ryuk gang. [8] As of September 2019, the Emotet operation ran on top of three separate botnets called Epoch 1, Epoch 2, and Epoch 3. [9]
If they gain control of the system, they deploy ransomware. [18] They have simultaneously transferred Bitcoin from Ryuk and Conti ransomware attacks into their own wallets, implying they are carrying out several attacks using different malware. [3] They are very security conscious and do not openly advertise on the darknet. They will only work ...
Rhysida is a ransomware group that encrypts data on victims' computer systems and threatens to make it publicly available unless a ransom is paid. [1] The group uses eponymous ransomware-as-a-service techniques, targets large organisations rather than making random attacks on individuals, and demands large sums of money to restore data. [2]
On 20 October 2020, the company suffered a Ryuk ransomware attack. [46] Using a new variant of Ryuk, the cybercriminals unsuccessfully tried to encrypt the company's data, making it inaccessible unless a ransom is paid. Ryuk has been described as "one of the most dangerous ransomware groups that operate through phishing campaigns". [46]