Threat actors use ransomware attacks to extort money from victims, by demanding payment in exchange for decryption tools. Ransomware is a type of malware that encrypts files, making them inaccessible to the victim. Thus, it is important to remove ransomware as soon as possible to prevent further harm. Also, it can spread to other devices on the local network while it is active.
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Ransomware is malicious software that can cause further damage by encrypting additional files. Victims can restore files without the interference of threat actors when they have a data backup, or a third-party decryption tool is available online. Therefore, it is strongly advised not to pay a ransom.
Unfortunately, not all victims who pay the demanded ransom receive the promised decryption tools.
In most cases, cybercriminals who launch ransomware attacks are the only ones who possess decryption tools.
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It provides instructions on how to contact cybercriminals through their live chat, Tox Chat Program, and support email More details about ransomware The ransom note also warns that if the victim does not pay the ransom within three days, all data will be made public. The attackers offer to decrypt the files if the victim contacts them through live chat and pays for the decryption tool and keys. The victim cannot decrypt the files without their help. They state that they have extracted all of the valuable data and copied it to a private cloud storage.Īccording to the ransom note, the attackers have encrypted all of the files on the network using a military-grade encryption algorithm. The attackers claim to have penetrated the entire network, including the backup system, and accessed all of the data. The ransom note says that the network has been breached and data has been copied. Screenshot of files encrypted by this ransomware: Our team discovered MEDUSA while examining samples submitted to VirusTotal.Īn example of how MEDUSA modifies filenames: it renames " 1.jpg" to " 1.jpg.MEDUSA", " 2.png" to " 2.png.MEDUSA", and so forth. MEDUSA" extension to filenames, and drops the " !!!READ_ME_MEDUSA!!!.txt" file, which contains a ransom note. MEDUSA is ransomware that encrypts data, appends the ".
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