Informing the Electronic Crime Prosecutor's Office about the emergence of a new malware, called CTB-Locker
The Electronic Crime Prosecutor's Office informs citizens of the emergence of a new malware, named as CTB-Locker (Curve-Tor-Bitcoin Locker) and is detected as "Critroni", while it constitutes the development of the known Crypto locker malware Ransomware.
In particular, the new malware, with its installation in the operating system, encrypts various file types (photos, videos, documents, etc.).
It then displays a "blocked" message on the computer, informing the user that a money sum (ransom) must be paid to unlock it.
The money is paid using the bitcoin (BTC) digital currency. If the victim does not have bitcoins, software developers provide instructions for acquiring them.
Like in Cryptolocker, malicious software "Critroni" creates a pair of public and private "keys", which are essentially code numbers, which "unlock" the infected computer.
Το ένα «κλειδί» (δημόσιο) αποθηκεύεται στο μολυσμένο σύστημα και δίνεται στο χρήστη ελεύθερα, χωρίς πληρωμή. Το άλλο «κλειδί» (ιδιωτικό) αποθηκεύεται στο διακομιστή διοίκησης και ελέγχου (C&C servers) and is given by the perpetrators to the victim to decrypt the files, only after the payment of the requested and agreed amount of money, which is always in digital currency "bitcoin".
The procedures and ways of spreading the above malicious software are similar to Cryptolocker's malware.
Internet users are urged to be particularly careful and take the following protection measures to prevent malicious software from being compromised.
Specifically:
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to check and keep up-to-date the version of their operating system,
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to back up their backup files at regular intervals, to external storage,
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to use security applications such as antivirus, which must always be up to date
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not to open links (links) and not to download attached files, contained in e-mail messages, for which they do not know for sure the sender and the content of the attached file.
