Remove 2019 Remove DNS Remove Firewall Remove Internet
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GUEST ESSAY: Addressing DNS, domain names and Certificates to improve security postures

The Last Watchdog

In 2019, we’ve seen a surge in domain name service (DNS) hijacking attempts and have relayed warnings from the U.S. In the enterprise environment, domain names, DNS, and certificates are the lifeline to any internet-based application including websites, email, apps, virtual private networks (VPNs), voice over IP (VoIP) and more.

DNS 182
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Cyber Defense Magazine – September 2019 has arrived. Enjoy it!

Security Affairs

Cyber Defense Magazine September 2019 Edition has arrived. In addition, we’re shooting for 7x24x365 uptime as we continue to scale with improved Web App Firewalls, Content Deliver Networks (CDNs) around the Globe, Faster and More Secure DNS and CyberDefenseMagazineBackup.com up and running as an array of live mirror sites.

DNS 65
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Black Hat USA 2021 Network Operations Center

Cisco Security

This requires a robust connection to the Internet (Lumen and Gigamon), firewall protection (Palo Alto Networks), segmented wireless network (Commscope Ruckus) and network full packet capture & forensics and SIEM (RSA NetWitness); with Cisco providing cloud-based security and intelligence support. From Russia With Love. urlscan.io.

DNS 144
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Future Focused: Encryption and Visibility Can Co-Exist

Cisco Security

Hiding internet activity strengthens privacy—but also makes it easier for bad actors to infiltrate the network. In fact, 63% of threats detected by Cisco Stealthwatch in 2019 were in encrypted traffic. In this blog I’ll describe two recent privacy advances—DNS over HTTPS (DoH) and QUIC—and what we’re doing to maintain visibility.

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New Ttint IoT botnet exploits two zero-days in Tenda routers

Security Affairs

The experts are monitoring the Mirai-based botnet since November 2019 and observed it exploiting two Tenda router 0-day vulnerabilities to spread a Remote Access Trojan (RAT). ” When the botnet was first detected in 2019, experts noticed it was exploiting the Tenda zero-day flaw tracked as CVE-2020-10987.

IoT 138
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Critical zero-days discovered in VxWorks RTOS, billions of devices at risk

Security Affairs

Even a device that is reaching outbound to the internet could be attacked and taken over. “As an example of this scenario, consider how such an attack can take over the SonicWall firewall, which runs on the impacted VxWorks OS.” ” reads the report published by Armis Labs. ” continues the report.

Risk 72
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Threat Protection: The REvil Ransomware

Cisco Security

We looked at REvil, also known as Sodinokibi or Sodin, earlier in the year in a Threat Trends blog on DNS Security. In it we talked about how REvil/Sodinokibi compromised far more endpoints than Ryuk, but had far less DNS communication. Figure 1-DNS activity surrounding REvil/Sodinokibi. Changing firewall rules.