Shadow (Ran_jr_som) Ransomware is a type of malicious software that encrypts files on a victim’s computer and demands a ransom for their decryption. It typically infects computers through malicious email attachments, exploit kits, or fake software updates.
When encrypting files, Shadow Ransomware adds the .shadow extension to the filenames, making them inaccessible to the user. It uses strong encryption algorithms such as AES or RSA to lock the files, making decryption without the proper key nearly impossible.
After encrypting the files, Shadow Ransomware creates a ransom note, typically named “README_SHADOW.txt” or similar, which contains instructions on how to pay the ransom to get the decryption key. This note is usually placed on the desktop or in folders containing encrypted files.
At the time of writing, there are no decryption tools available for Shadow Ransomware. However, victims are advised not to pay the ransom as there is no guarantee that the cybercriminals will provide the decryption key. Instead, they should regularly back up their files, update their security software, and seek help from cybersecurity experts to try and recover their files.