There is no guarantee that you will recover your files, even after paying ransom.This conclusion was reached after considering several factors Our team of cybersecurity experts always advises that victims should follow the FBI’s guidelines when dealing with cyber criminals and thus should not accede to any request for ransom. To assure their victims that all encrypted files would be decrypted once they pay the stipulated ransom, they will request for a portion of the encrypted files to be forwarded to them for sample decryption.
They always use this option because of the anonymity it provides, unlike other channels that could leave traceable footprints.
In addition, the victim can only pay the equivalent amount through cryptocurrency to a wallet address that would be made available by the cybercriminals.
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In other words, they would be required to pay $490 to have their data decrypted but once it exceeds 3 days, they would be mandated to the full ransom fee of $980. The terms of payment is often indicated as follows if the victim responds within 72 hours, i.e., 3 days, they will be liable to a 50% discount. Included in the message will be two email addresses and for the victim to respond to should they need more information. Therefore, they would not be able to have access to the files again unless they pay a certain amount of money as ransom and also within a specified period of time. The ransom note will notify the victim that IISA ransomware has successfully encrypted (i.e., made useless/unreadable) all their essential data contained in the computer, which includes documents and pictures, among other relevant data with the use of a strong encryption key. Contained in the _readme.txt message is a notification from the cybercriminals informing the victim about the cyberattack while also providing a contact address and medium through which the ransom should be paid in exchange for a IISA decryption tool. While this attack is still ongoing, the virus release _readme.txt ransom notes in all the folders. E.g., an existing file known as 1.jpg gets renamed to 1.jpg.iisa and the same process is repeated with every other file. The virus operates by encrypting all files contained in any computer it infects and equally appends. IISA ransomware is a new variant of malicious computer virus that belongs to a group of notorious malware generally known as STOP/DJVU ransomware. IISA ransomware is a malicious file-encrypting virus
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