CATO Networks
MARCH 24, 2020
At the beginning of the month, Microsoft released an advisory and security patch for a serious Windows Server Message Block (SMB) vulnerability called the Windows SMBv3 Client/Server Remote Code Execution Vulnerability (AKA Windows SMBv3 RCE or CVE-2020-0796). Windows SMBv3 RCE isnt the first vulnerability in SMB.
CATO Networks
MARCH 22, 2023
An attacker can craft a.MSG file as a e form of a calendar invite that triggers an authentication attempt over the SMB protocol to an attacker-controlled endpoint without any user interaction. (.MSG Only SMB sessions terminating at known, trusted servers should be allowed.
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CATO Networks
MAY 15, 2017
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. Like many ransomware attacks, WannaCrypt leverage phishing as an attack vector.
CATO Networks
DECEMBER 16, 2024
They typically gain initial access through phishing emails, social engineering, supply chain attacks, and Remote Desktop Protocol (RDP) exploits. One of the key features of RoboCopy is its ability to handle SMB (Server Message Block) traffic. RoboCopy supports various options and switches that enhance its functionality over SMB.
CATO Networks
MARCH 20, 2017
Windows SMBv3 Denial of Service Zero-Day One issue that was not covered widely in the news is a zero-day attack discovered in Microsoft Windows SMBv3, the popular enterprise protocol for file and printer sharing. The POC was able to generate the so called Blue Screen of Death on Windows clients that connects into a compromised SMB server.
CATO Networks
JUNE 29, 2017
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. To date, SMB traffic patterns pointing to the malware have not been detected on our network.
CATO Networks
AUGUST 18, 2022
Internet Firewall Rules enforce company-driven access policies to Internet websites and apps based on app name, category, port, protocol and service. All security engines ( IPS , Anti-Malware, Next-Generation Anti-Malware) are enabled globally and scan all ports and protocols with exceptions created only when needed.
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