Ransomware

FenixLocker Ransomware is a malicious software that encrypts files on infected systems, rendering them inaccessible to the user. This ransomware typically adds the .centrumfr@india.com extension to the compromised files, which serves as a clear indicator of infection. Among other possible extensions for this ransomware are: .[help24decrypt@cock.li], .help24decrypt@qq.com!!. Through its process, it employs AES cryptography, a robust encryption method that effectively ensures the victim cannot access their data without the decryption key. After encrypting the files, FenixLocker leaves a ransom notes titled Help to decrypt.txt or Cryptolocker.txt on the desktop. The note instructs victims to contact the attackers via email to receive further steps, often requesting a ransom in Bitcoin to restore access to the files. Despite the compelling nature of these notes, paying the ransom is highly discouraged since it doesn't guarantee the decryption of files and may further expose victims to additional risks.

WeHaveSolution Ransomware is a particularly severe form of malware designed to encrypt files on a victim's computer, effectively rendering them inaccessible until a ransom is paid. Upon infection, it appends the .wehavesolution247 extension to the encrypted files, indicating their compromised status. It employs strong encryption standards like RSA and AES to secure the files, which makes unauthorized decryption virtually impossible without the right decryption key. This ransomware does more than just encrypt files; it also drops a ransom note titled READ_NOTE.html on the infected device, usually on the desktop, where it delivers the attackers' demands. The note insists that victims should not attempt third-party decryption or modify the encrypted files, as such actions could lead to irreversible file damage. It further threatens to leak or sell stolen sensitive data if the ransom isn't paid within a specific timeframe, typically 72 hours. This creates a sense of urgency, pressuring victims into considering the payment to restore access to their data.

UwU Ransomware is a type of malicious software classified under ransomware, notorious for encrypting victims’ files and demanding a ransom for decryption. This ransomware particularly targets users' data by appending the file extension .MOONMAN to the encrypted files, making the data unusable without the specific decryption key held by the attackers. For instance, a file named document.docx would be transformed into document.docx.MOONMAN after encryption. The cryptographic algorithms utilized by UwU ransomware are typically robust, making decryption without the attacker’s key practically impossible. Once the encryption process is completed, UwU creates a ransom note named READTHISNOW.txt, which serves to notify the victim of their files’ encryption and demand a payment of $1,488, specifically in the form of cryptocurrency referred to as "shitcoin". The note, however, is unconventional as it does not directly convey that the files have been encrypted but instead is filled with obscure references and profanity.

Arachna Ransomware is a malicious software variant that specifically targets users by encrypting their files and demanding a ransom for their decryption. Upon infiltrating a system, it appends the file extension .Arachna to the victim's files, significantly modifying their names to include the victim's ID and an email address, along with the new extension. For instance, a file named photo.jpg might be transformed into photo.jpg[id-0458FGO9].[Arachna_Recovery@firemail.de].Arachna. The encryption used by Arachna is typically robust, leaving minimal opportunities for decryption without the attackers' tools. After encryption, the ransomware generates ransom notes in the form of Restore-Files-Guide.txt files and pop-up windows, explicitly instructing victims to contact the attackers via email. The notes ominously warn that failure to comply and pay the demanded Bitcoin ransom could result in permanent data loss, thus pressuring victims into cooperation.

MZLFF Ransomware is a malicious software that encrypts files on a victim's computer. This type of malware targets various file types, rendering them inaccessible by appending the .locked extension to the original filenames. For instance, a file named document.doc would be renamed to document.doc.locked once encrypted. Utilizing 256-bit AES encryption, it ensures that files are securely locked, making decryption without the unique key held by the cybercriminals exceedingly difficult. Users typically encounter a ransom note shortly after encryption, which is displayed in a prominent pop-up window. The note, often written in Russian, demands a payment in Bitcoin, specifying an address to which victims are instructed to transfer a small amount of cryptocurrency to retrieve their decryption key. It also includes threats about the destruction of the decryption key if payment isn't made promptly, exacerbating the urgency and fear among victims.

AnonWorld Ransomware is a highly detrimental form of ransomware that encrypts files on a compromised system, appending them with the distinctive .SNEED extension. This means a file originally named document.docx would appear as document.docx.SNEED after encryption. Once the encryption process is complete, the ransomware delivers its ransom note via a text file named R3ADM3.txt, typically deposited on the desktop or in each affected directory. The ransom note conveys a message with political undertones, specifically citing geopolitical tensions as a motive, and demands that the victims, ostensibly companies based in Russia or Belarus, contact the attackers within three days to discuss data recovery. Unfortunately, decrypting files locked by AnonWorld ransomware is nearly impossible without cooperation from the cybercriminals due to the robust encryption algorithms utilized.

Killer Skull Ransomware is a menacing form of malware designed to encrypt user files, demanding a hefty ransom for their decryption. This ransomware is part of the Chaos ransomware family, notorious for its robust file encryption techniques, specifically employing the ChaCha20 algorithm. Upon infiltration, Killer Skull alters the filenames by appending a random four-character extension, so files like photo.jpg might be transformed into photo.jpg.ab12. After encrypting the files, this malware alters the victim's desktop wallpaper and propagates a ransom note named payment_information.txt. This note explicitly warns victims of the ransomware's presence, detailing that all data on their hard drives and networks have been encrypted and can only be restored by purchasing a decryption key from the attackers. Victims are urged to contact the perpetrators via a provided email address, with the staggering ransom request usually noted in Bitcoin, leaving many users with a dilemma, as paying does not guarantee file recovery and may embolden these cybercriminals.

R2Cheats Ransomware is a dangerous type of malicious software specifically designed to encrypt victims' files and demand a ransom payment to restore access. When it infects a computer, it appends the _R2Cheats extension to each affected file, rendering it unusable without the appropriate decryption key. For instance, a file named document.jpg would be altered to document.jpg_R2Cheats. This mechanism effectively locks users out of their own data, exerting psychological pressure to comply with the attacker's demands. The ransomware uses robust encryption algorithms, although details on the specific methods employed remain unclear, ensuring that unauthorized decryption is nearly impossible without the attacker’s tool. Victims are subsequently presented with a ransom note—typically titled ransom_note.txt—which is often found on the desktop or in affected directories. The note demands a payment, in this case, $150 in Roblox gift cards, to be sent via specific communication channels such as an email address or Discord handle.