Remove Architecture Remove DNS Remove Firewall Remove Malware
article thumbnail

Building a scalable RAVPN architecture in Oracle Cloud Infrastructure using Cisco Secure Firewall

Cisco Security

With Cisco Secure Firewall, organizations are able to build a scalable RAVPN architecture on OCI, providing employees secure remote access to their organization’s resources from any location or endpoint. It enforces security at the DNS layer to block malware, phishing, and command and control callbacks over any port.

Firewall 106
article thumbnail

NSA, CISA issue guidance on Protective DNS services

SC Magazine

A PDNS service uses existing DNS protocols and architecture to analyze DNS queries and mitigate threats. Over a six-month period, the PDNS service examined more than 4 billion DNS queries to and from the participating networks, blocking millions of connections to identified malicious domains.

DNS 131
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Massive increase in XorDDoS Linux malware in last six months

Malwarebytes

Based on a case study in 2015 , Akamai strengthened the theory that the malware may be of Asian origin based on its targets. Microsoft said that XorDDoS continues to home on Linux-based systems, demonstrating a significant pivot in malware targets. MMD believed the Linux Trojan originated in China.

Malware 134
article thumbnail

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. Threat Grid (Secure Malware Analytics).

DNS 144
article thumbnail

A Reactive Cybersecurity Strategy Is No Strategy at All

CyberSecurity Insiders

These developments have made the perimeter so porous that the old approach of simply hiding behind a firewall and keeping the rest of the world at bay is no longer feasible. When malware first breaches a network, it doesn’t make its presence known right away. So why aren’t more organizations taking advantage of protective DNS?

DNS 140
article thumbnail

New Mirai variant appears in the threat landscape

Security Affairs

The shell script downloads several Mirai binaries that were compiled for different architectures, then it executes these binaries one by one. Experts noticed that the malware also downloads more shell scripts that retrieve brute-forcers that could be used to target devices protected with weak passwords.

Wireless 124
article thumbnail

Network Security Architecture: Best Practices & Tools

eSecurity Planet

Network security architecture is a strategy that provides formal processes to design robust and secure networks. This article explores network security architecture components, goals, best practices, frameworks, implementation, and benefits as well as where you can learn more about network security architecture.