Crysis ransomware and its variants have been active since 2016. They typically enter systems via exposed Remote Desktop Protocol (RDP) ports. Upon gaining access, Crysis installs itself, scans for specific file extensions such as documents, images, and databases, encrypts them, and then demands a ransom.
Crysis ransomware, also known as CrySiS, Dharma, Ransom.Crysis, Win32:Malware-gen, and various other aliases, poses a significant threat with a danger rating of 5. This type of ransomware, active since 2016, infiltrates systems through exposed Remote Desktop Protocol (RDP) ports, allowing it to install itself and initiate malicious activities.
Upon gaining access, Crysis targets specific file extensions, including documents, images, and databases. It encrypts these files, rendering them inaccessible to users. The ransomware then demands payment for decryption keys, with potential damage including data theft, data loss, money extortion, and compromised system functions.
Recognizing Crysis infections involves watching for symptoms such as unusual system file modifications, encrypted files with unfamiliar extensions, frequent system crashes during file access, and the appearance of ransom notes demanding payment. Increased network traffic, particularly on RDP ports, may also indicate potential infiltration.
Sources of Crysis infections include exposed RDP ports, phishing emails with malicious attachments, vulnerabilities in outdated software (especially related to RDP and system security), compromised websites hosting exploit kits, and propagation within local networks through lateral movement exploiting weak network security configurations.
If you suspect your system is infected with Crysis ransomware, take immediate action by isolating the infected system from the network, identifying the variant and encryption algorithm, avoiding ransom payment, using Gridinsoft Anti-Malware for removal, and restoring files from a backup taken before the infection occurred.
Preventing Crysis infections requires proactive measures, including regularly updating the operating system and software to patch vulnerabilities, using strong, unique passwords, enabling two-factor authentication for RDP and critical systems, employing network segmentation to limit the impact of breaches, regularly backing up critical data and storing backups offline, and educating users about phishing emails and suspicious links to prevent inadvertent malware installations.
If you suspect your system is infected with Crysis ransomware:
To prevent Crysis ransomware infections:
