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Ransomware encrypts or steals data to disrupt operations and extort victims, making backups, access controls, and incident response essential.

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Background for this topic.

Ransomware is malware used to deny access to systems or data, usually by encrypting files and demanding payment for decryption. Many operations also steal sensitive information and threaten to publish it, so an attack can create both an availability crisis and a privacy or disclosure risk. Initial access may involve phishing, stolen credentials, exposed remote services, or exploitation of unpatched vulnerabilities; attackers may then move through the network before deploying the payload.

Defenses should combine vulnerability management, phishing-resistant authentication where practical, endpoint and network monitoring, and backups that are isolated from routine administrator access and regularly tested for recovery. Organizations should also limit privileges and segment critical systems to reduce the blast radius. An incident requires rapid containment, preservation of forensic evidence, restoration from known-good backups, and assessment of notification, legal, and regulatory obligations. Threat intelligence can help identify relevant criminal infrastructure or tactics, but it does not replace sound access control, patching, detection, and recovery practices.

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Internet-connected MDM instances, each with an 'unrestricted number' of managed devices, were vulnerable FileWave has fixed a couple vulnerabilities in its endpoint management software that could allow a remote attacker to bypass authentication and take full control of the deployment and associated devices.…

Don't worry, the crooks totally deleted the data and promised not to use it for evil A ransomware gang has not only taken down WordFly, a mailing list provider for top arts organizations among others, but also siphoned data belonging to the US-based Smithsonian, Canada's Toronto Symphony Orchestra, and the Courtauld Institute of Art in London.…

Emerging threat group offers a broad range of attack services An emerging and fast-growing threat group is using a unique business model to offer cybercriminals a broad range of services that span from leaked databases and distributed denial-of-service (DDoS) attacks to hacking scripts and, in the future, potentially ransomware.…

Trend Micro Research, News and Perspectives 3 years, 11 months ago

LockBit Ransomware Group Augments Its Latest Variant, LockBit 3.0, With BlackMatter Capabilities

In June 2022, LockBit revealed version 3.0 of its ransomware. In this blog entry, we discuss the findings from our own technical analysis of this variant and its behaviors, many of which are similar to those of the BlackMatter ransomware.