Ransomware

Help_restoremydata Ransomware is a malicious software program designed to encrypt files on an infected computer, rendering them inaccessible without a specific decryption key. This ransomware appends the .help_restoremydata extension to the names of the files it encrypts, effectively locking the user out of their data. For example, a file originally named document.docx would be renamed to document.docx.help_restoremydata. The encryption process utilized by Help_restoremydata employs robust cryptographic algorithms, specifically RSA-4096 and AES-256, which makes it difficult to decrypt without the appropriate decryption key. Upon completing the encryption, the ransomware leaves a HOW_TO_RECOVERY_FILES.html file as a ransom note, both on the desktop of the infected computer and within the folders containing the encrypted files. This note demands payment in cryptocurrency, typically Bitcoin, and warns users not to attempt file recovery using third-party software, as this could result in permanent data loss.

Gengar Ransomware is a malicious software designed to encrypt files on an infected system, making them inaccessible to the user until a ransom is paid. Upon infection, it appends the .gengar file extension to all encrypted files, effectively locking them away from access. For instance, a file such as photo.jpg would be renamed to photo.jpg.gengar, indicating it has been compromised. The ransomware employs the AES (Advanced Encryption Standard) algorithm, known for its robust security, making decryption without a key practically impossible. To communicate with victims, Gengar Ransomware leaves a ransom note named info.txt in affected directories. This note instructs victims to contact the attackers through a specific email address provided, warning them against attempting to decrypt the files using third-party software. The attackers often offer to decrypt a few files for free as "proof" of their capabilities, while emphasizing that they hold the exclusive decryption keys needed to restore access.

RedLocker Ransomware is a particularly malicious form of software designed to encrypt files on an infected system, effectively locking users out of their data until a ransom is paid. This ransomware appends the .redlocker extension to each file, making it evident to victims that their data has been compromised. In execution, the ransomware employs sophisticated cryptographic algorithms, typically asymmetric encryption, which are notoriously difficult to break without the decryption key. Once the encryption process concludes, the ransomware leaves behind a ransom note titled redlocker.bat, usually placed on the desktop. This note contains instructions for the victim on how to proceed with payment to supposedly restore access to their files. The ransom demand is typically in cryptocurrency such as Bitcoin, ensuring anonymity for the attackers. Victims are warned against using third-party decryption tools, suggesting that such actions could cause permanent data loss.

Deoxyz Ransomware is a menacing strain of malware that infiltrates systems, encrypts the victim's files, and demands a ransom payment for their decryption. Derived from the notorious Chaos ransomware, it targets a wide variety of file types, ensuring that users notice the effects almost immediately. Upon encryption, the ransomware appends an extension made up of four random characters to each file, like transforming document.docx into document.docx.0ae1, effectively rendering them inaccessible. The encryption used by Deoxyz is robust, built on advanced algorithms that are virtually impossible to crack without a decryption key. Post-encryption, the malicious software not only locks files but also alters system settings to reinforce its grip, notably changing the desktop wallpaper to alert victims of the attack. It then deposits a ransom note named read_it.txt in affected directories and as a pop-up on the desktop, instructing users on how to pay the ransom, typically in cryptocurrency, to retrieve their files.

Zxc Ransomware is a notorious type of malicious software belonging to the VoidCrypt ransomware family known for encrypting files on infected computers, rendering them inaccessible to the users. Upon infection, it appends a unique file extension denoted as .zxc to the original filenames, alongside a unique ID and a contact email address of the cybercriminals, replacing their original extensions. The encryption mechanism employed by this ransomware typically involves complex cryptographic algorithms, either symmetric or asymmetric, with the exact nature often making it difficult if not impossible for victims to recover their data without the decryption key held hostage by the attackers. Victims are prompted with a ransom note that appears both as a pop-up window and a text file named Decryption-Guide.txt, which informs them of the file encryption and provides instructions on how to contact the attackers for decryption in exchange for a ransom payment, commonly demanded in cryptocurrency such as Bitcoin to obscure the transaction trail.

TRUST FILES Ransomware is a malicious software that encrypts the victim’s data and demands a ransom in exchange for decryption capabilities. Categorized as ransomware, it specifically appends the file extension .XSHC to the encrypted files, transforming ordinary file names into a pattern that includes a unique ID, the attackers' email address, followed by the .XSHC extension, such as 1.jpg.[ID-H89435Q].[TrustFiles@skiff.com].XSHC. The encryption method employed by TRUST FILES is complex and typically involves strong cryptographic algorithms, making unauthorized decryption nearly impossible without the specific decryption key held by the attackers. Upon infecting a system, this ransomware alters the desktop background and creates ransom notes, namely #README-TO-DECRYPT-FILES.txt and #README.hta, which are strategically placed in folders containing encrypted files. The ransom notes serve to inform victims of the encryption, demand a Bitcoin payment for the decryption key, and provide warnings against using third-party decryption tools or seeking help from data recovery services, claiming these actions might render the encrypted data unrecoverable.

Termite Ransomware is a malicious strain of software designed to encrypt valuable files on an infected computer system, effectively holding the data hostage until a ransom is paid. This ransomware belongs to the Babuk family and typically appends the .termite extension to the encrypted files, making them inaccessible without a decryption key. Examples of this renaming process include changing 1.jpg to 1.jpg.termite and 2.png to 2.png.termite, which signifies the files have been compromised. File encryption employed by this ransomware is usually robust, involving advanced encryption algorithms that make unauthorized decryption highly challenging. Once the encryption is complete, the ransomware generates a ransom note, generally titled How To Restore Your Files.txt, which is placed in various folders and sometimes displayed on the desktop. This note guides the victim to a particular website for further instructions on payment and offers a contact email for negotiation, indicating the attackers' control over the decryption process.

AllCiphered Ransomware is a malicious program that belongs to the MedusaLocker ransomware family, notorious for its ability to encrypt valuable data and demand a ransom for decryption. Upon infecting a system, it appends a distinctive file extension to each encrypted file, namely .allciphered70, effectively rendering them inaccessible without the decryption key. The specific number in the extension might vary with different variants of this ransomware. Utilizing a combination of RSA and AES cryptographic algorithms, AllCiphered employs robust encryption methods, making victims' data extremely challenging to recover without cooperation from the attackers. Once the encryption process is complete, the ransomware creates a ransom note named How_to_back_files.html, typically located in every folder containing encrypted files. This note informs victims of the security breach, the encryption of their files, and demands a ransom for the decryption software. Additionally, it threatens to publish or sell exfiltrated confidential data if the ransom is not paid within a specified timeframe, typically escalating the ransom amount after 72 hours.