Ransomware

Lockfile Ransomware, also known as MedusaLocker, is a type of malicious software that encrypts files on infected systems, rendering them inaccessible to users. Once executed, it infiltrates the computer’s files and appends the .lockfile extension to the encrypted files. This means that a document initially named report.docx would appear as report.docx.lockfile, making it clear to victims that their data has been compromised. Lockfile ransomware employs advanced encryption algorithms, specifically a combination of RSA and AES methods, to ensure that recovering files without a decryption key is nearly impossible. Once the encryption process is complete, the ransomware generates a ransom note titled HOW_TO_RECOVER_DATA.html, which is typically created in the same directory as the encrypted files. In this note, attackers detail the steps victims must take to pay the ransom, often in cryptocurrency, in exchange for the decryption key necessary to unlock their files.

Cash Ransomware, known for its severe damage potential, is a variant of the notorious Crysis/Dharma ransomware family. This malicious software operates by encrypting users' files and demanding a ransom for their decryption. Once encrypted, files are typically renamed to include a unique victim ID and the email address of the attackers, appending the .CASH extension to the original file name. For instance, a document named report.docx may be transformed into report.docx.id-{random-id}.[cryptocash@aol.com].CASH. Users often discover they have been compromised when they encounter a ransom note titled FILES ENCRYPTED.txt on their desktop, which provides instructions on how to negotiate with the cybercriminals and retrieve their data. Ransomware variants like CASH can leverage advanced cryptographic algorithms, making unauthorized file decryption virtually impossible without the appropriate keys.

8base Ransomware, identified by its strong encryption and malicious intent, primarily targets users' data, rendering files inaccessible until a ransom is paid. It falls under the notorious Phobos family of ransomware, which is known for its widespread activity and high rates of encryption success. Victims of this malware find their files renamed to include the .8base extension, alongside their unique ID and an email address (support@rexsdata.pro). The encryption method utilized in this attack is highly sophisticated, often making it impossible for victims to regain access to their data without the decryption key provided by the cybercriminals. Upon successful encryption, victims encounter ransom notes such as info.hta and info.txt, which provide instructions on how to pay the ransom in Bitcoin to restore access to their files. These notes typically contain threats against attempting recovery through unauthorized means, emphasizing the potential for permanent data loss.

NordCrypters Ransomware represents a severe threat to computer users, functioning as a file encryption malware that reduces victims to a state of helplessness by denying access to their data. This ransomware operates by appending the .enc file extension to various types of files, effectively rendering them unusable without the corresponding decryption key. Upon infiltration, NordCrypters leverages sophisticated encryption algorithms to lock files, making it extremely challenging to recover any lost data without paying the ransom. Victims of this ransomware encounter a ransom note named КАК ВОССТАНОВИТЬ ВАШИ ФАЙЛЫ.txt, which appears on their desktop or within affected folders. This note contains specific details about the payment process and threatens users with permanent data loss if they attempt to manually recover files. Given the inner workings of ransomware like NordCrypters, victims are often dissuaded from trying any form of self-decryption, as these attempts might further complicate file recovery.

Eject Ransomware represents a particularly insidious type of malware that belongs to the Phobos family of ransomware. This malicious software encrypts users' files, rendering them inaccessible without the right decryption key. Once files are compromised, Eject Renamer appends the .eject extension to each affected file, altering their filenames to convey the victim's unique ID and contact details for the cybercriminals. The ransomware deploys its attack through various methods, including malicious email attachments and dubious downloads, often targeting files with extensions such as .jpg, .docx, .pdf, and others commonly used in personal and professional environments. Victims will find themselves confronted with a ransom note in the form of an info.hta pop-up window, which appears on their screens once the files have been encrypted. There is also a short info.txt file with contact details created. This ransom note shares instructions for contacting the attackers and highlights how victims can recover their data, typically demanding payment in Bitcoin to restore access.

Abyss Ransomware is a malicious software variant categorized within the ransomware family, designed primarily to encrypt files on infected systems and demand a ransom for their release. This sophisticated cyber threat utilizes advanced encryption algorithms to render files inaccessible, often spreading through methods like phishing emails, compromised software, or malicious advertisements. Once inside a computer, Abyss encrypts a wide range of file types, appending the .Abyss extension to the filenames, making it clear that the files have been compromised. Victims commonly find that previously accessible documents, pictures, and other files are no longer retrievable. A signature aspect of this ransomware attack is the creation of a ransom note named WhatHappened.txt, which provides detailed instructions on how to initiate communication with the attackers regarding file recovery. This note is typically placed on the desktop, accompanied by significant changes to the system's wallpaper, further highlighting the attack.

Risen Ransomware represents a new and sophisticated threat in the realm of cybercrime. This malware encrypts user files utilizing robust encryption algorithms, making data recovery without the decryption key nearly impossible. Typically, it targets a variety of file types, including but not limited to documents, images, and databases. Files affected by Risen Ransomware receive malicious extensions that follow a specific format, such as .[ransom_email, TELEGRAM:ID].random_ID, which serves as a distinct indicator of the attack and the ransom demand that follows. The primary ransom note, titled $Risen_Guide.hta, takes the form of a pop-up and contains clear instructions for victims, providing an email address and a Telegram handle through which they can initiate negotiations for the return of their files. Additionally, $Risen_Note.txt file is created containing the ransom note. Alongside this, the Risen.exe file is executed on compromised systems to carry out the encryption process.

AES-NI Ransomware is a sophisticated form of malware designed to infiltrate computers and encrypt personal files, rendering them inaccessible to the user. This ransomware variant employs robust encryption methods such as AES-256 and RSA-2048, which make it virtually impossible for victims to recover their files without the appropriate decryption keys. Upon successful encryption, files are renamed with the .aes_ni_0day extension, clearly indicating that they have been compromised. In addition to encrypting files, AES-NI Ransomware generates a ransom note labeled !!! READ THIS - IMPORTANT !!! txt, which is placed on the desktop. This note informs the victim of the encryption and demands a ransom payment in exchange for the decryption key. Cybercriminals typically require payments in Bitcoin, obscuring their identities and making recovery of lost funds highly unlikely. Data recovery in these cases becomes immensely complicated due to the absence of legitimate decryption tools that could restore affected files.