![]() In order to unzip these archives, the victim will need to enter a password known only to the attacker.Īfter the QNAP device is encrypted, the victim will receive a ransom warning titled !!! READ_ME.txt. Once the ransomware completes the encryption process, the files of the QNAP device will be stored in password-protected 7-zip archives (zipped files), ending with the extension. While the files are locked, the QNAP Resource Monitor will display the '7z' processes as the 7zip command line execution. In the majority of reports, most victims reported that the attackers misused 7-zip to move the file system on the QNAP device into password-protected archives. Since that time, there have been numerous reports, Urgent message from QNAP users regarding their file system being encrypted for a ransom. According to preliminary investigation results, malicious intentional activities began targeting QNAP devices globally on April 19, 2021. The ransomware used in this attack campaign is Qlocker - a name no stranger to the global security community. It is worth mentioning that this offensive campaign is still actively deployed, and especially many victims discovered that their encrypted files were stored in password protected 7zip archives.
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