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", and is the evolution of the known malware Crypto locker Ransomware.
In particular, the new malware, upon installation into the operating system, encrypts various types of files (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.
The one "key» (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) και δίδεται από τους δράστες στο θύμα για να αποκρυπτογραφηθούν τα αρχεία, μόνο μετά την καταβολή του χρηματικού ποσού που έχει ζητηθεί και συμφωνηθεί, το οποίο είναι πάντα σε 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 applications security, such as antivirus, which must always be updated and
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not open the links and not download the attachments contained in emails for which they are not sure about the sender and the contents of the attached file.
