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How to Stop WannaCrypt Infections with the Cato Cloud

CATO Networks

But what makes the attack so unusually virulent is how it exploits a vulnerability in the Windows SMB protocol. SMB is used by Windows machines for sharing files and the ransomware uses SMB to spread to other vulnerable devices on a network. Once installed, the ransomware encrypts the files on the machine.

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WannaCry II: How to Stop NotPetya Infections with the Cato Cloud

CATO Networks

Like WannaCry, NotPetya leverages the SMB protocol to move laterally across the network, an EternalBlue exploit attributed to the National Security Agency (NSA) and leaked by the Shadow Brokers hacking group last April. Attackers allegedly planted the malware in the companys update servers. A total of 3.8

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Cato Research Decrypts the News Behind February Security Events

CATO Networks

The POC was able to generate the so called Blue Screen of Death on Windows clients that connects into a compromised SMB server. Vulnerabilities in SMB servers should be treated very seriously. Organizations can best protect themselves by inspecting interbranch SMB traffic with an IPS.

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Cato CTRL Threat Research: Sophisticated Data Exfiltration Tools Used in Double Extortion Ransomware Attacks by Hunters International and Play 

CATO Networks

Executive Summary Modern ransomware attacks have evolved beyond simple encryption to deploy sophisticated double extortion tactics. Threat actors now systematically exfiltrate sensitive data before encrypting systems, ensuring leverage even when victims have robust data backups. dev cdn-server-2[.]wesoc40288[.]workers[.]dev

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The Latest Cyber Attacks Demonstrate the Need to Rethink Cybersecurity

CATO Networks

The same group that was behind a series of attacks on companies using sophisticated malware that encrypts files, known as Sodinokibi or REvil. It is speculated that the attack on Travelex became possible because the company had failed to patch vulnerable VPN servers. We also address the shortcomings of VPNs.

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