Ransomware

DarkN1ght Ransomware is a malicious software variant that encrypts files on infected computers, making them inaccessible to the user unless a ransom is paid. This ransomware is based on the Chaos ransomware family and exhibits behaviors typical of modern ransomware threats, meticulously encrypting critical data and demanding a ransom for decryption. Upon infiltrating a system, DarkN1ght appends file extensions composed of four random characters to encrypted files, examples of which include extensions such as .3hok, .7oyv, and .6003. After encryption, affected files might be renamed from, say, 1.jpg to 1.jpg.3hok, exemplifying the alteration that occurs. This renaming serves as a clear indicator that the files are no longer directly accessible. The process of encryption utilized by DarkN1ght is assumed to be complex, possibly employing an asymmetric encryption algorithm, though specific details on its cryptographic methods remain undisclosed by researchers. In terms of communication, DarkN1ght Ransomware drops a poignant ransom note named read_it.txt on the victim's desktop and within various directories across the system.

Adver Ransomware is a malicious software strain that targets personal files by encrypting them, rendering the data inaccessible unless a decryption tool is obtained, typically through payment. When it infects a system, it appends the .adver file extension to all encrypted files; for example, a file named photo.jpg would become photo.jpg.adver. This encryption process is meticulous, employing sophisticated and often unbreakable algorithms, making manual decryption practically impossible without the correct decryption key. Victims of Adver Ransomware find a note titled RECOVERY INFORMATION.txt placed within their system, which outlines the extortion demands. This note usually details how to contact the perpetrators, typically through an email address provided, and instructs victims on paying the ransom amount in exchange for the decryption tool. Unfortunately, victims face additional distress knowing that paying the ransom does not guarantee the recovery of their files and only encourages criminal activity.

Novalock Ransomware is a malevolent strain of ransomware belonging to the notorious GlobeImposter family. Typically targeting business networks, this malware encrypts files on compromised systems and appends them with the .novalock file extension, effectively rendering the files unusable without the decryption key. For example, photo.jpg would be altered to photo.jpg.novalock, instantly indicating a breach. Under the hood, Novalock employs a hybrid encryption scheme, utilizing both RSA and AES algorithms. This combination ensures a highly secure encryption process, significantly complicating efforts to decrypt without the proper key. Once the encryption is complete, a ransom note titled how_to_back_files.html is generated on the affected system. This note is strategically placed in folders containing encrypted files, warning victims that the attacker has accessed their network, encrypted critical data, and stolen information that may be leaked publicly if the ransom is not paid.

Secplaysomware Ransomware is a malicious software that targets computer systems by encrypting files and demanding a ransom from victims in exchange for file decryption. Upon infection, this ransomware appends the .qwerty extension to all affected files, rendering them inaccessible. The ransomware not only encrypts each file, but it also drops a ransom note, typically named UNLOCK_README.txt, in every directory containing encrypted files. This note instructs the victim to contact the attacker via a specific email address to discuss the terms for unlocking the files. However, there's no guarantee that the attacker will provide a decryption key even after payment, making reliance on these cybercriminals risky. Secplaysomware appears to use advanced encryption algorithms commonly found in ransomware, making independent decryption a challenging task without the attackers' private key.

Luck (MedusaLocker) Ransomware is a malicious program belonging to the infamous MedusaLocker ransomware family, which has become notorious for its capability to encrypt valuable data and demand hefty ransoms for decryption. This ransomware, once it infiltrates a system, targets and encrypts the files using robust RSA and AES cryptographic algorithms, rendering user data inaccessible. With its unforgiving nature, it appends a distinct file extension to each locked file. For instance, users may notice their files marked with the extension .luck_06, though variations may occur in different versions. Alongside this encryption process, a ransom note is quietly yet prominently positioned within the compromised directories, typically within an HTML file titled How_to_back_files.html. This note threatens the victim with the loss of data if specific monetary demands are not met within a designated timeframe, further intensifying the urgency by cautioning against any attempts to alter encrypted files or seek unauthorized decryption assistance.

GURAM Ransomware is a malicious software variant that clandestinely infiltrates computer systems with the primary intent of encrypting valuable files and demanding a ransom for their decryption. This ransomware typically appends the .GURAM extension to the encrypted files, transforming a potentially recognizable file such as document.docx into document.docx.{victim's_ID}.GURAM. The encryption process employed by GURAM is robust, leveraging either symmetric or asymmetric cryptographic algorithms, which makes decryption without the appropriate key extremely challenging. Upon encryption, a ransom note is usually deposited in a text file named README.txt, found in each folder containing encrypted files. This note informs victims of their compromised data status and outlines the payment requirements, typically demanding a sizable ransom in cryptocurrency, such as Litecoin, with threats of increasing the amount if payment is delayed.

Crynox Ransomware, a notorious threat in the realm of cybercrime, is a malicious software variant designed to encrypt a victim's files and demand a ransom for their release. This ransomware is based on the Chaos ransomware variant, using sophisticated encryption algorithms to ensure that the victim's data is inaccessible. Once infiltrated, Crynox appends the .crynox extension to the affected files, drastically impacting a user's ability to access their crucial documents, spreadsheets, photos, and more. The encryption process usually employs a combination of RSA and AES, both recognized for their robust security, which presents a significant challenge to reverse engineer or decrypt without the correct keys. Victims typically encounter a ransom note titled read_it.txt placed on their desktop or in all folders containing encrypted files. This note provides instructions from the attackers, often demanding payment in Bitcoin to retrieve the decryption key, and urging victims to follow specific instructions to avoid data loss.

Black (Prince) Ransomware is a malicious software variant designed to manipulate victims through file encryption and extorting ransom payments. Emerging from the Prince ransomware family, it maliciously encrypts files on the victim's computer system, making them inaccessible to users. Upon encryption, it appends a distinct .black extension to the affected files, rendering them unrecognizable to commonly used software. Files like document.pdf or image.jpg become document.pdf.black and image.jpg.black, respectively, signaling the encryption. Targeted file encryption serves as a powerful and disruptive force, leveraging either symmetric or asymmetric cryptographic algorithms to ensure victims are locked out of their own data. This ransomware leaves a comprehensive ransom note titled Decryption Instructions.txt on the desktop, instructing victims on how to regain access to their files by paying a ransom through unspecified cryptocurrency. It strongly advises victims against renaming or manipulating the encrypted files, as this could lead to permanent data loss and further complicate data recovery.