Security Affairs

JUNE 11, 2022

Iran-linked Lyceum APT group uses a new.NET-based DNS backdoor to target organizations in the energy and telecommunication sectors. The Iran-linked Lyceum APT group, aka Hexane or Spilrin, used a new.NET-based DNS backdoor in a campaign aimed at companies in the energy and telecommunication sectors, ZScaler researchers warn.

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DNS Telecommunications Malware Phishing 145

Heimadal Security

FEBRUARY 4, 2022

DNS allows computer networks to associate numerous pieces of information with each web domain. That’s why the DNS system converts each domain name […]. That’s why the DNS system converts each domain name […]. The post Best Free and Public DNS Servers appeared first on Heimdal Security Blog.

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DNS Internet Internet Cybersecurity 126

Cisco Security

MARCH 23, 2021

In our Threat Trends blog series , we attempt to provide insight into the prevalent trends on the threat landscape. This is what we covered in part one of this Threat Trends release on DNS Security, using data from Cisco Umbrella , our cloud-native security service. Part 2: Industry trends. Financial Services.

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DNS Financial Services Manufacturing Healthcare 143

Krebs on Security

SEPTEMBER 18, 2024

According to DomainTools.com , the organization that registered this domain is called “ apkdownloadweb ,” is based in Rajshahi, Bangladesh, and uses the DNS servers of a Web hosting company in Bangladesh called webhostbd[.]net. net for DNS. net DNS servers). xyz and onlinestreaming[.]xyz. Livestreamnow[.]xyz

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Scams DNS Internet Internet 65

Krebs on Security

MARCH 9, 2021

In the ENKI blog post, the researchers said they will publish proof-of-concept (PoC) details after the bug has been patched. For the second month in a row, Microsoft has patched scary flaws in the DNS servers on Windows Server 2008 through 2019 versions that could be used to remotely install software of the attacker’s choice.

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DNS Internet Internet Backups 356

Krebs on Security

FEBRUARY 4, 2019

Spammy Bear targeted dormant but otherwise legitimate domains that had one thing in common: They all at one time used GoDaddy’s hosted Domain Name System (DNS) service. The domains documented by MyOnlineSecurity all had their DNS records altered between Jan. 31 and Feb. 22 report on the GoDaddy weakness. Image: Farsight Security.

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DNS Ransomware Accountability Internet 278

Security Affairs

MAY 3, 2022

A vulnerability in the domain name system (DNS) component of the uClibc library impacts millions of IoT products. Nozomi Networks warns of a vulnerability, tracked as CVE-2022-05-02, in the domain name system (DNS) component of the uClibc library which is used by a large number of IoT products. ” continues the advisory.

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DNS IoT Hacking Cybersecurity 126

Heimadal Security

JULY 19, 2024

Choosing the right DNS software can make a significant difference in your network’s speed, security, and reliability. With a variety of options available, finding the best DNS software for your needs in 2024 can be challenging.

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DNS Software 104

Heimadal Security

NOVEMBER 7, 2022

Encrypted DNS traffic is a type of DNS traffic secured in a way that no third party can intervene during a DNS resolution (the process of translating a domain name into an IP address). This means that no one can intercept the data changed during a DNS request, so the names of the websites and […].

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DNS Encryption 111

Malwarebytes

JULY 12, 2021

Firefox recently announced that it will be rolling out DNS-over-HTTPS (or DoH) soon to one percent of its Canadian users as part of its partnership with CIRA (the Canadian Internet Registration Authority), the Ontario-based organization responsible for managing the.ca The DNS resolver the request is sent to also sees the DNS request, too.

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DNS Encryption Internet Internet 122

Heimadal Security

APRIL 10, 2023

The Round-robin DNS is a load-balancing technique that helps manage traffic and avoid overloading servers. The method aims to distribute the traffic load evenly between the servers associated […] The post Round-Robin DNS Explained. What It Is and How It Works appeared first on Heimdal Security Blog.

DNS 126

DNS Cybersecurity 126

Krebs on Security

JANUARY 22, 2019

Your Web browser knows how to find a Web site name like example.com thanks to the global Domain Name System (DNS), which serves as a kind of phone book for the Internet by translating human-friendly Web site names (example.com) into numeric Internet address that are easier for computers to manage. ” SAY WHAT? 13, 2018 bomb threat hoax.

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DNS Internet Internet Computers and Electronics 277

Heimadal Security

APRIL 7, 2022

A clear DNS cache is an easy way to solve connectivity issues, as well as prevent some of the most widely-encountered DNS-based cyberattacks. In the following lines, you will find an overview of what a DNS cache is, as well as the importance of flushing it, […]. But how can you do that on your endpoints?

DNS 119

DNS 119

Heimadal Security

NOVEMBER 22, 2022

DNS scavenging is the process of removing stale DNS records, usually used together with DNS aging in order to free up space and improve system performance. In cybersecurity, in particular, DNS scavenging can help prevent DNS cache poisoning attacks and even reduce the chances of DNS servers being used in DDoS attacks.

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DNS DDOS Cybersecurity 98

Heimadal Security

JULY 30, 2024

DNS security risks are everywhere, and the stats show it too. A 2021 IDC survey of over 1,100 organizations across North America, Europe, and the Asia Pacific revealed that 87% had encountered DNS attacks. The average cost per attack was approximately $950,000 globally, rising to about $1 million for organizations in North America.

DNS 111

DNS Risk 111

Heimadal Security

FEBRUARY 23, 2023

DNS records or resource records (RR) contain various types of data about domain names and IP addresses. They are stocked in DNS databases on authoritative DNS servers. DNS records offer information about what IP address is associated with what domain, for example.

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DNS Mobile Cybersecurity 98

Heimadal Security

AUGUST 2, 2024

More than 35,000 registered domains have been hijacked by threat actors in so-called Sitting Ducks attacks that allow claiming a domain without having access to the owner’s account at the DNS provider or registrar.

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DNS Accountability Cybersecurity 105

Heimadal Security

NOVEMBER 14, 2022

DNS logging is the process of gathering detailed data on DNS traffic (all DNS information that is sent and received by the DNS server), usually to help network administrators resolve DNS errors or, especially in cybersecurity, quickly identify and mitigate threat actors’ attempts to attack the DNS infrastructure.

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DNS Cybersecurity 98

Heimadal Security

AUGUST 6, 2021

A brand-new category of DNS flaws that affects important DNS-as-a-Service (DNSaaS) suppliers has been recently discovered by cybersecurity specialists. The post New Category of DNS Vulnerabilities Impacts Numerous DNSaaS Platforms appeared first on Heimdal Security Blog.

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DNS Cybersecurity 105

Heimadal Security

NOVEMBER 12, 2021

The Domain Name System (DNS), which supports the Internet presence of your company, is a centralized network run by different organizations worldwide. Simply put, the DNS is […]. Simply put, the DNS is […].

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DNS Internet Internet 111

Heimadal Security

APRIL 13, 2021

Security experts from Forescout and JSOF have discovered a new set of DNS vulnerabilities that could impact more than 100 million IoT devices used by consumers and organizations. The post Name:Wreck DNS Bugs Put IoT Devices At Risk appeared first on Heimdal Security Blog.

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DNS IoT Risk Cybersecurity 105

Heimadal Security

OCTOBER 4, 2022

DNS (Digital Network System), a Russian retail chain, disclosed yesterday that its systems have been breached by a threat actor. DNS is Russia’s second-largest store chain […]. The post Russian Retailer DNS Confirms Data Breach appeared first on Heimdal Security Blog.

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DNS Retail Data breaches Cybersecurity 102

Heimadal Security

MAY 28, 2021

The Domain Name System (DNS), with its quirks, kinks, and compulsion to create unnecessarily long acronyms is a world of its own (design). At this point, any DNS treatise, article, paper, or cheat-sheet, makes Encyclopedia Britannica’s letter “A” volume look like a “quit smoking” leaflet.

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DNS Cybersecurity 116

The Last Watchdog

MARCH 28, 2019

His blog, Krebs on Security , was knocked down alright. And since Dyn routed traffic, not just to Krebs’ blog, but also to Twitter, Spotify, Netflix, Amazon, Tumblr, Reddit and PayPal, those popular websites were offline for some 12 hours, frustrating millions. DNS resolvers are the number-one tracked DDoS weapon, by size,” Shin said.

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DDOS IoT DNS Internet 263

Heimadal Security

JANUARY 20, 2023

The Domain Name System, and the DNS zones that it is composed of, are not as simple as ”the internet`s phonebook” largely used definition for DNS suggests it would be.

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DNS Internet Internet 98

Heimadal Security

DECEMBER 9, 2022

The post What Is DNS Propagation and How to Keep Safe from DNS Attacks appeared first on Heimdal Security Blog. It’s somewhat like changing your phone number and having to announce the new one to literally everyone you know and want to keep in touch with.

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DNS Cybersecurity 98

Heimadal Security

SEPTEMBER 14, 2023

As malware and attack techniques continue to evolve in sophistication, DNS IoCs help threat hunting teams to prevent ransomware attacks. Prioritizing threat hunting to prevent and mitigate advanced threats is critical to safeguarding an organization`s data and assets.

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DNS Ransomware Malware Cybersecurity 104

Heimadal Security

OCTOBER 22, 2021

The DNS in and of itself has never been secure. Throughout time, this has led malicious actors to take advantage of this issue and develop elaborate attack techniques that leverage the DNS, such as […]. The post All You Need to Know About DNS Spoofing to Keep Your Organization Safe appeared first on Heimdal Security Blog.

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DNS Internet Internet 105

The Last Watchdog

DECEMBER 6, 2019

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.

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DNS Firewall Social Engineering Risk 140

Heimadal Security

NOVEMBER 28, 2022

Domain hijacking and DNS poisoning are two methods used by threat actors to perform a DNS spoofing attack and redirect traffic toward malicious websites. The post Domain Hijacking vs DNS Poisoning: Do You Know the Difference? The post Domain Hijacking vs DNS Poisoning: Do You Know the Difference? In this […].

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DNS Cybersecurity 105

Heimadal Security

JULY 23, 2021

A global DNS outage related to the Akamai company made quite a stir on Thursday. The post DNS Global Outage Affected Websites and Online Services appeared first on Heimdal Security Blog. Who Is Akamai?

DNS 98

DNS Cybersecurity 98

Heimadal Security

JULY 13, 2021

A new internet protocol is making headlines in the world of enterprise security: DNS over HTTPS. The post DNS over HTTPS (DoH): Definition, Implementation, Benefits, and More appeared first on Heimdal Security Blog. Are you ready for this cybersecurity revolution yourself?

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DNS Internet Internet Cybersecurity 105

Heimadal Security

OCTOBER 31, 2024

DNS MX records are a key element in delivering an email successfully to its rightful recipient. Just like your […] The post Understanding DNS MX Records and Their Role in Email Security appeared first on Heimdal Security Blog. But have you ever wondered what it takes to deliver an email?

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DNS Internet Internet Cybersecurity 97

Heimadal Security

AUGUST 8, 2022

The DNS is an essential concept in the online world, and its operations empower users all around the world to access billions of websites every day. But what is DNS? And, perhaps more importantly, how does DNS work? In this article, you will learn the definition of the DNS and how the servers involved in […].

DNS 105

DNS 105

Heimadal Security

DECEMBER 13, 2022

A ‘DNS leak’ is a security flaw that reveals Domain Name System (DNS) requests to an Internet Service Provider’s (ISP) servers, despite the user’s effort to conceal them through a Virtual Private Network (VPN) service. The post What Is a DNS Leak?

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DNS VPN Internet Internet 104

Troy Hunt

SEPTEMBER 26, 2018

Somewhere in the middle is a responsible approach, for example the sponsorship banner you see at the top of this blog. Scott Helme put me onto this originally via his two excellent posts on Securing DNS across all of my devices with Pi-Hole + DNS-over-HTTPS + 1.1.1.1 That is all. No HTML tags. No tracking.

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DNS Risk 279

Heimadal Security

APRIL 24, 2023

DNS-Layer Security protects users from threats that arise from inbound and outbound traffic. It refers to monitoring communications between endpoints and the internet at a DNS-layer level. Imagine the DNS layer security as a gatekeeper who makes sure that all potentially malicious visitors remain at the gate. But that`s not all.

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DNS Ransomware Internet Internet 98