ZeroCool Ransomware is a type of malware that encrypts files on the victim's computer. In addition to encrypting data, ZeroCool adds the .ZeroCool extension to filenames and provides a ransom note (ZeroCool_Help.txt). This ransomware poses significant challenges to individuals, businesses, and governments due to its ability to disrupt operations, compromise data, and extract ransom payments. Modern ransomware, like ZeroCool, often uses a hybrid encryption scheme, combining AES and RSA encryption to secure their malware against researchers recovering encrypted files. This approach involves generating an RSA key pair, encrypting all files with the public key, and sending the private key to the server to be stored.
FarAttack is the name of a ransomware infection that encrypts personal data by appending the .farattack extension. This means a previously unaffected
1.pdfwill be forcefully changed to
1.pdf.farattackand reset its original icon after successful encryption. Following this process, the ransomware creates a text note called How_to_recovery.txt which features decryption instructions. The note guides victims to contact swindlers either using the TOR link or e-mail communication (email@example.com or firstname.lastname@example.org). In response to your reach-out cybercriminals give further instructions on how to pay for decryption. They also advise victims to fit in 72 hours unless they want the price to go higher. The price itself is kept secret and ends up declared after victims contact the crooks. Unfortunately, decrypting files without the help of ransomware creators is quite an arduous task. It may only be possible to decrypt some parts of the data, but not fully.
3AM (ThreeAM) Ransomware is a newly discovered strain of ransomware written in Rust programming language. It has been used in limited attacks as a fallback option when the deployment of LockBit ransomware was blocked. The ransomware attempts to stop multiple services on the infected computer before it begins encrypting files and tries to delete Volume Shadow (VSS) copies. 3AM ransomware appends the .threeamtime extension to the filenames of encrypted files. For example, a file named
photo.jpgwould be changed to
photo.jpg.threeamtime. The ransomware creates a ransom note named RECOVER-FILES.txt in every folder containing encrypted files. The note provides information on how to pay the ransom and possibly purchase a decryption tool from the attackers.
Oohu Ransomware is a malicious software belonging to the Djvu ransomware family, designed to encrypt files and modify their file names by appending the .oohu extension. This ransomware variant employs the Salsa20 encryption algorithm, making it extremely difficult to decrypt files without the attacker's assistance. After encryption, it generates a ransom message named _readme.txt. The ransom note demands a payment of $490 to $980 in Bitcoin to decrypt the files. However, there is no guarantee that the cybercriminals will provide the decryption key after receiving the payment. If your computer gets infected with Oohu Ransomware, it is advised not to pay the ransom, as there is no guarantee that the cybercriminals will provide the decryption key. Instead, follow our professional guide to remove the ransomware and attempt to recover your files using available tools and methods.
Oopl Ransomware is a variant of the STOP/Djvu ransomware family, which encrypts files on the victim's computer and demands a ransom for their decryption. It is distributed through various methods, such as spam emails with infected attachments, fake software cracks, or by exploiting vulnerabilities in the operating system and installed programs. When Oopl ransomware infects a system, it scans for files like photos, videos, and documents, modifies their structure, and adds the .oopl extension to each encrypted file, making them unusable without the decryption key. For example, it transforms files like
2.png.oopl. The ransom note created by Oopl ransomware is named _readme.txt. Oopl ransomware uses the Salsa20 encryption algorithm to encrypt files. Although it is not the strongest method, it still provides an overwhelming number of possible decryption keys, making brute-forcing the decryption key extremely difficult.
Ooza Ransomware is a malicious software that belongs to the Djvu family, which is a part of the notorious STOP/Djvu Ransomware lineage. Its primary objective is to encrypt files on the infected computer, making them inaccessible, and then demand a ransom payment in exchange for the decryption key. Once Ooza Ransomware infects a computer, it encrypts data and adds the .ooza extension to the file names. For example, a file originally named
1.jpg.ooza. The ransomware uses the Salsa20 encryption algorithm. After encrypting the files, Ooza Ransomware creates a ransom note in the form of a text document named _readme.txt. The note provides information about the ransom demand, which ranges from $490 to $980 in Bitcoin, and contact details for the cybercriminals.