Krebs on Security

APRIL 13, 2022

“Microsoft advises blocking TCP port 445 at the perimeter firewall, which is strong advice regardless of this specific vulnerability. While this won’t stop exploitation from attackers inside the local network, it will prevent new attacks originating from the Internet.”

DNS 318

DNS Internet Internet Firewall 318

SecureWorld News

JANUARY 22, 2025

Limitations of traditional security measures While organizations typically rely on email filters, firewalls, and antivirus software, these solutions often fall short against AI-powered phishing attacks. This dynamic nature allows attackers to bypass traditional defenses and increase their success rates significantly.

Phishing 110

Phishing Threat Detection Social Engineering DNS 110

Security Affairs

SEPTEMBER 26, 2024

internet service providers (ISPs) as part of a cyber espionage campaign code-named Salt Typhoon. internet service providers in recent months as part of a cyber espionage campaign code-named Salt Typhoon. internet-service providers in recent months in pursuit of sensitive information, according to people familiar with the matter.”

Internet 129

Internet Internet DNS Telecommunications 129

Security Affairs

AUGUST 4, 2024

A China-linked APT, tracked as StormBamboo, compromised an internet service provider (ISP) to poison software update mechanisms with malware. Upon investigating the incidents, the researchers determined that a DNS poisoning attack at the ISP level caused the infection. The company linked the attacks to StormBamboo APT group.

Malware 144

Malware DNS Firewall Software 144

CSO Magazine

APRIL 13, 2023

Domain name system (DNS) tunneling is a pervasive threat that enables hackers to get any data in and out of a company's internal network while bypassing most firewalls. But DNS tunneling essentially smuggles hostile traffic through DNS ports, which makes these attacks difficult to detect and mitigate.

DNS 83

DNS Risk Firewall Internet 83

Security Affairs

AUGUST 10, 2020

An attacker could use $300 worth of off-the-shelf equipment to eavesdrop and intercept signals from satellite internet communications. The academic researcher James Pavur, speaking at Black Hat 2020 hacking conference , explained that satellite internet communications are susceptible to eavesdropping and signal interception.

Internet 134

Internet Internet Advertising Encryption 134

Cisco Security

MARCH 11, 2021

After examining topics such as the MITRE ATT&CK framework , LOLBins , and others, this release will look at DNS traffic to malicious sites. We’ll also look at malicious DNS activity—the number of queries malicious sites receive. Organizations and malicious DNS activity. Overview of analysis. Cryptomining.

DNS 95

DNS Phishing Ransomware Internet 95

Security Boulevard

MAY 20, 2022

What Is DNS Spoofing and How Is It Prevented? What Is the DNS and DNS Server? . To fully understand DNS spoofing, it’s important to understand DNS and DNS servers. The DNS “domain name system” is then what translates the domain name into the right IP address. What Is DNS Spoofing? .

DNS 98

DNS Cyber Attacks Encryption Risk 98

eSecurity Planet

JANUARY 5, 2024

A firewall policy is a set of rules and standards designed to control network traffic between an organization’s internal network and the internet. Featured Partners: Next-Gen Firewall (NGFW) Software Learn more Table of Contents Toggle Free Firewall Policy Template What Are the Components of Firewall Policies?

Firewall 109

Firewall Penetration Testing DNS Network Security 109

Security Affairs

SEPTEMBER 4, 2019

Experts at SEC Consult discovered several security issues in various Zyxel devices that allow to hack them via unauthenticated DNS requests. The first issue is an information disclosure flaw via unauthenticated external DNS requests that affect Zyxel devices from the USG, UAG, ATP, VPN and NXC series. Pierluigi Paganini.

DNS 97

DNS Hacking Firmware Wireless 97

Dark Reading

APRIL 13, 2021

Researchers uncover a fresh set of nine vulnerabilities in four TCP/IP stacks that are widely used in everything from powerful servers and firewalls to consumer IoT products.

DNS 88

DNS Internet Internet IoT 88

Security Affairs

MAY 24, 2024

The use of Dynamic DNS (DDNS) services embedded in appliances can potentially expose data and devices to attacks. The use of Dynamic DNS (DDNS) services embedded in appliances, such as those provided by vendors like Fortinet or QNAP, carries cybersecurity implications. For instance, suppose firewall manufacturer ACME Inc.

DNS 136

DNS Manufacturing Firewall Internet 136

Webroot

MARCH 9, 2021

DNS (Domain Name System) is especially vulnerable. Once the criminal redirects internet traffic to malicious websites or takes control of servers, the damage is inevitable. However, cybercriminals can also use legal DNS traffic surveillance to their advantage. Cybersecurity Tips for Individuals and Businesses.

Hacking 132

Hacking DNS Surveillance Cybercrime 132

Daniel Miessler

MAY 8, 2020

A lot of people are thinking about the security of their home network right now, and as one of the project leaders on the OWASP Internet of Things Security Project , I wanted to provide three levels of security you can do at home. Do you have internet-connected lights, appliances, gaming systems, media systems, etc? or 1.1.1.3

Passwords 255

Passwords DNS Accountability IoT 255

Webroot

MARCH 29, 2021

A firewall with the right threat intelligence embedded could have blocked communications with the command-and-control server thus preventing a Trojanized Orion install from connecting back to the attackers and stopping them from furthering the attack. Outside of the corporate firewall, it is the Wild West.

Hacking 137

Hacking DNS Firewall Malware 137

eSecurity Planet

SEPTEMBER 3, 2022

These events can occur accidentally and even within a corporate network; however, intentional attacks on internet-facing resources are far more common. Also read: How to Secure DNS. Firewalls may allow these packets through and cause server CPUs to become overwhelmed due to resources wasted analyzing and discarding these packets.

DDOS 145

DDOS DNS Firewall Internet 145

Cisco Security

AUGUST 12, 2021

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 145

DNS Firewall Malware Mobile 145

Security Boulevard

JULY 9, 2024

Operational resiliency necessitates intelligence, visibility, and confidence: the three foundational pillars of protective DNS (PDNS). This makes malware command-and-control, phishing attacks, DNS tunneling and a number of other attacks significantly less effective. But Wait, What Is Protective DNS?

DNS 64

DNS Cyber threats Cyber Attacks Phishing 64

eSecurity Planet

NOVEMBER 3, 2022

For effective DDoS defense, priority for patching and updates should be placed on devices between the most valuable resources and the internet such as firewalls, gateways , websites, and applications. Hardening includes, but is not limited to: Block unused ports on servers and firewalls. User Datagram Protocol (UDP).

DDOS 126

DDOS Firewall DNS Architecture 126

eSecurity Planet

DECEMBER 2, 2021

A next-generation firewall (NGFW) is an important component of network security and represents the third generation of firewall technology. NGFWs provide capabilities beyond that of a traditional, stateful firewall , including cloud-delivered threat intelligence , integrated intrusion prevention , and application awareness and control.

Firewall 131

Firewall DNS Network Security Artificial Intelligence 131

CyberSecurity Insiders

MAY 18, 2022

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. So why aren’t more organizations taking advantage of protective DNS? So where do we go from here? The issue likely comes down to awareness.

DNS 140

DNS Cybersecurity CISO Social Engineering 140

Webroot

FEBRUARY 16, 2021

In recent months, you’ve likely heard about DNS over HTTPS , also known as DNS 2.0 and DoH, which is a method that uses the HTTPS protocol to encrypt DNS requests, shielding their contents from malicious actors and others who might misuse such information. Ultimately, this DNS privacy upgrade has been a long time coming.

DNS 94

DNS Encryption Firewall Network Security 94

Malwarebytes

APRIL 13, 2021

A set of vulnerabilities has been found in the way a number of popular TCP/IP stacks handle DNS requests. Yes, the researchers found 9 DNS-related vulnerabilities that have the potential to allow attackers to take targeted devices offline or to gain control over them. Basically, you could say DNS is the phonebook of the internet.

IoT 82

IoT DNS Internet Internet 82

Malwarebytes

MAY 25, 2022

Since Linux is deployed on many IoT (Internet of Things) devices and cloud infrastructures, we are likely to see DDoS (distributed denial-of-system) attacks from botnets that have compromised such devices. Microsoft said that XorDDoS continues to home on Linux-based systems, demonstrating a significant pivot in malware targets.

Malware 142

Malware IoT DDOS DNS 142

Security Affairs

APRIL 21, 2022

Umbrella is Cisco’s cloud-based Secure Internet Gateway (SIG) platform that provides users with multiple levels of defense against internet-based threats. Umbrella integrates secure web gateway, firewall, DNS-layer security, and cloud access security broker (CASB) functionality to protect systems against threats.

DNS 128

DNS Internet Internet Firewall 128

CyberSecurity Insiders

MARCH 21, 2021

Therefore, make sure to set up the latest network routers and firewall protocols across all IT equipment to strengthen your security and create a defense against hackers and security breaches. Firewalls . Install hardware firewalls for the maximum level of network security. . Two-factor authentication . Monitoring system.

Small Business 145

Small Business Cyber Attacks VPN Backups 145

Cisco Security

MARCH 16, 2021

Hiding internet activity strengthens privacy—but also makes it easier for bad actors to infiltrate the network. In this blog I’ll describe two recent privacy advances—DNS over HTTPS (DoH) and QUIC—and what we’re doing to maintain visibility. Keeping your destination private: DNS over HTTPS. DoH prevents both of these problems.

Encryption 102

Encryption DNS Threat Detection Internet 102

Security Affairs

JULY 27, 2020

In December 2018, security experts from Trend Micro discovered that some machine-to-machine (M2M) protocols can be abused to attack IoT and industrial Internet of Things (IIoT) systems. According to our estimate, CoAP can reach up to 32 times (32x) amplification factor, which is roughly between the amplification power of DNS and SSDP.”.

DDOS 142

DDOS IoT Internet Internet 142

McAfee

DECEMBER 1, 2021

CVE-2021-20322: Of all the words of mice and men, the saddest are, “it was DNS again.” Palo Alto Networks (PAN) firewalls that use its GlobalProtect Portal VPN running PAN-OS versions older than 8.1.17 Next, call up whoever manages your firewall and demand they power it down immediately – use threats if you must.

DNS 90

DNS Firewall VPN Internet 90

Security Affairs

JULY 30, 2019

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 104

Risk IoT Firewall DNS 104

eSecurity Planet

APRIL 7, 2023

DMZ networks typically contain external-facing resources such as DNS, email, proxy and web servers. However, when your DMZ network includes a proxy server, administrators also have the option to filter all internal internet usage through the DMZ.

Architecture 103

Architecture Firewall Network Security Technology 103

Cisco Security

AUGUST 11, 2021

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.

Ransomware 145

Ransomware DNS Encryption Backups 145

McAfee

FEBRUARY 17, 2021

Use of “domain age” is a feature being promoted by various firewall and web security vendors as a method to protect users and systems from accessing malicious internet destinations. The sites and domains of the internet are constantly changing and evolving. Domain Age Feature Definition. Domain Registration.

Internet 65

Internet Internet DNS Risk 65

eSecurity Planet

JANUARY 14, 2022

In addition, most DDoS mitigation solution providers bundle Web Application Firewall functionality to prevent DDoS attacks at the application layer. Edge DNS is a DNS service that moves DNS resolution from on premises or data centers to the Akamai Intelligent Edge. Protects websites, networks, DNS and individual IPs.

DDOS 128

DDOS DNS Firewall Media 128

Security Affairs

OCTOBER 5, 2020

Unlike other IoT DDoS botnets, Ttint implements 12 remote access functions such as Socket5 proxy for router devices, tampering with router firewall and DNS settings, executing remote custom system commands.

IoT 145

IoT Firmware Advertising DNS 145

Security Affairs

SEPTEMBER 4, 2019

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. It’s mobile and tablet friendly and superfast.

DNS 98

DNS Advertising Firewall Mobile 98

eSecurity Planet

APRIL 26, 2024

Server: Provides powerful computing and storage in local, cloud, and data center networks to run services (Active Directory, DNS, email, databases, apps). Endpoint: Enables access for human users and computer services and commonly includes PCs, laptops, Internet of Things (IoT), and operational technology (OT).

Architecture 121

Architecture Network Security Firewall Risk 121