Death Note Anime Ryuk Figurine

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Let's just say this: you will feel the fear and pain known only to humans who've used the notebook. And when it's your time to die, it will fall on me to write your name in my Death Note. Be warned any human who's used a Death Note can neither go to Heaven nor Hell for eternity. That's all. Execute the payload using the CreateRemoteThread API. (Note, that this API will fail for 64-bit processes, which is OK since the payload is 32-bit.) Unlike other families of ransomware, Ryuk does not contain process/service termination and anti-recovery functionality embedded in the executable. In the past, Ryuk did contain these capabilities, but they have been removed and are contained within two batch files. Ryuk is fond of video games, first shown in the omake eight-panel comic series, where he asks Light for a Silver Game Boy Advance SP for Christmas. [3] On another occasion, Ryuk asks Light if he wants to play Mario Golf (changed to "video games" in the anime), but receives no answer, since Light's bedroom is bugged with microphones and rigged with cameras.

The Onyx group simply customized their ransom note and created a refined list of file extensions they wished to target. There is little other modification to differentiate it from any other samples built with Chaos v4.0. The sculpting and painting are top-notch, with intricate textures and gothic colours that make Ryuk appear realistic and menacing. The facial expression perfectly portrays his mischievous and cunning nature, while the wings and pose give him an imposing presence. Ryuk visits Light after he has begun using the Death Note, celebrating the creation of Kira, which he finds interesting. Ryuk stays by Light's side, such as attending Misa's live performance and seeing Rem again when Misa and Light meet up. When it seems that Rem is getting attached to Misa, Ryuk reminds her not to break the Shinigami rule about helping humans. When Misa first meets L and realizes the name she sees doesn't match what he gave her, Ryuk tells her that she isn't supposed to know that so she doesn't make it obvious. CrowdStrike has observed another batch file, named windows.bat , which makes file recovery more difficult on the victim’s machine. It should be noted that file names can be arbitrarily changed by the threat actors. The contents of the batch file are shown below in Figure 2. As mentioned in the Hermes to Ryuk section, Ryuk uses a combination of symmetric (AES) and asymmetric (RSA) encryption to encrypt files. Without the private key provided by WIZARD SPIDER, the files cannot be decrypted and are unrecoverable. A thread is created for the encryption of each file and each file is encrypted with its own AES key. After the file has been encrypted, a file extension of .RYK is appended to the file. All directories will have a ransom note of ( RyukReadMe.txt ) written to the directory.

Lateral movement is continued until privileges are recovered to obtain access to a domain controller. I was the whole thing, Taro. That was some pretty smart thinking. Hyuk hyuk hyuk. So how was it… the Land of the Dead?” ( Pilot chapter) Ryuk was one of the Death Note characters that were made into Nendoroid figures. Light, L, Misa, and Ryuk were the only characters made into the primary Nendoroid figures, but they were also made into Nendoroid petites. The next steps taken by the injected payload are the same steps taken by the initial Ryuk ransomware invocation. Process and Service Termination

The last step is executed forever, as Ryuk will continuously attempts to discover new victims on the network and encrypt them. All humans die the same, the place they go after death isn't decided upon by a god it is Mu (nothingness). You have lost, Light. Didn't I say in the beginning… when you die, the one who'll write your name down in a notebook will be me. That is… the deal between the Shinigami… and the first human to get their hands on the note in the human world. Once you enter the prison, I don't know when you'll die. It's annoying to wait… Your life is already over. You'll die here. Well, it was good while it lasted… We killed some boredom, didn't we? We did some various and interesting things…” ( Episode 37) Chaos (and subsequently Yashma) have seen rapid development and advances throughout the last year, with its most recent iteration, “Yashma” (Chaos v6.0), found in-the-wild in mid-2022. You have lost, Light. Didn’t I say in the beginning, when you die, the one who’ll write your name down in a notebook will be me? That is the deal between the Shinigami and the first human to get their hands on the note in the human world. Once you enter prison, I don’t know when you’ll die. It’s annoying to wait. Your life is already over. You’ll die here.This fact indicates that operators behind Ryuk malware carefully study each victim and perform expensive scouting and network mapping. Disable the windows error recovery screen that appears during boot in case Windows was shut down improperly using: You're using the word 'destiny' for a woman again, Light. You always use a one patterned approach for women.” ( Tomorrow)

Current builds of Ryuk no longer contain persistence functionality. Previously, to remain persistent on the host, Ryuk created a registry entry under the Run key using Windows cmd.exe shell. The following command line was used to write to the Registry Run Key name svchos to HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run with the value being the path to the Ryuk executable. Process Injection It is a known fact that the organization associated with Emotet is MUMMY SPIDER, which has been connected with the WIZARD gang in the past. Conclusion Ryuk does not encrypt files from within its own process memory space, but injects into a remote process. Before injecting into a remote process, Ryuk attempts to adjust its token privileges to have the SeDebugPrivilege . It takes no action if the adjustment of the token privileges fails. Before injecting into a remote process, Ryuk also calls CreateToolhelp32Snapshot to enumerate all running processes. If a process is found that is not named csrss.exe , explorer.exe , lsaas.exe , or is running under NT AUTHORITY system account, Ryuk will inject itself into this single process. By ensuring that the process is not running under NT AUTHORITY , the developers are assuming the process is not running under another account and therefore can be written to. Ryuk uses a combination of VirtualAlloc , WriteProcessMemory and CreateRemoteThread to inject itself into the remote process. Process/Service Termination and Anti-Recovery Commands The injection method used by this Ryuk sample is both simple and similar to methods used by previous variants of Ryuk:

Conclusion of Ryuk

Though Chaos v4.0 had been in-the-wild for several months now, this variant of Chaos rose to notoriety in April 2022 when it was weaponized by a threat group called Onyx. The malware would only target the victim’s C:\ drive, looking for files located in the following folders: Customization options from Chaos v4.0 are also unchanged, which gives the threat actor the following options: In addition, as part of our membership in the Cyber Threat Alliance, details of this threat were shared in real time with other Alliance members to help create better protections for customers. IOCs