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Ransomware Groups Turn to Intermittent Encryption to Speed Attack Times

eSecurity Planet

To accelerate the ransomware encryption process and make it harder to detect, cybercriminal groups have begun using a new technique: intermittent encryption. Intermittent encryption allows the ransomware encryption malware to encrypt files partially or only encrypt parts of the files. Others are automated.

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A flaw in the encryption algorithm of Hive Ransomware allows retrieving encrypted files

Security Affairs

Researchers discovered a flaw in the encryption algorithm used by Hive ransomware that allowed them to decrypt data. Researchers discovered a flaw in the encryption algorithm used by Hive ransomware that allowed them to decrypt data without knowing the private key used by the gang to encrypt files.

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New Hive ransomware variant is written in Rust and use improved encryption method

Security Affairs

Hive ransomware operators have improved their file-encrypting module by migrating to Rust language and adopting a more sophisticated encryption method. According to a report published by blockchain analytics company Chainalysis, the Hive ransomware is one of the top 10 ransomware strains by revenue in 2021. key files.

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Royal Ransomware adds support for encrypting Linux, VMware ESXi systems

Security Affairs

Royal Ransomware operators added support for encrypting Linux devices and target VMware ESXi virtual machines. The Royal Ransomware gang is the latest extortion group in order of time to add support for encrypting Linux devices and target VMware ESXi virtual machines. The malware changes the extension of the encrypted files to ‘.royal’.

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A 16-year-old bug (CVE-2021-3438) in printer driver affects millions of printers worldwide

Security Affairs

Experts warn of a 16-year-old vulnerability (CVE-2021-3438) in an HP, Xerox, and Samsung printers driver that an attacker could exploit to gain admin rights on systems. ” reads the analysis published by SentinelOne. ” continues the analysis. 19 May, 2021 – HP released an advisory for CVE-2021-3438.

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SOVA Android malware now also encrypts victims’ files

Security Affairs

The SOVA Android banking trojan was improved, it has a new ransomware feature that encrypts files on Android devices, Cleafy researchers report. The malware has been active since 2021 and evolves over time. ” reads the analysis published by Cleafy. The latest version of the SOVA Trojan, 5.0, Oscorp or BRATA ).”

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ISMG Editors' Panel: The FBI's Global Cryptophone Sting

Data Breach Today

Analyzing Verizon's 2021 Breach Investigations Report, Talent Management and More Criminals tricked into using an FBI-run encrypted messaging app, Verizon's 2021 Breach Investigations Report and overcoming the challenges of recruiting cybersecurity professionals are among the latest cybersecurity topics to be featured for analysis by a panel of Information (..)