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 91

Dark Reading

MARCH 14, 2023

An analysis of trillions of DNS requests shows a shocking amount of malicious traffic inside enterprise networks, with threats using DNS as a sort of malicious Autobahn.

DNS 97

DNS Malware 97

CSO Magazine

APRIL 19, 2023

The Domain Name System (DNS) is often referred to as the phone book of the internet. DNS translates web addresses, which people use, into IP addresses, which machines use. But DNS was not designed with security in mind. This has only worsened with the adoption of encrypted DNS, known as DNS-over-HTTPS (DoH).

DNS 84

DNS Encryption Internet Internet 84

Bleeping Computer

APRIL 23, 2023

A new enterprise-targeting malware toolkit called 'Decoy Dog' has been discovered after inspecting anomalous DNS traffic that is distinctive from regular internet activity. [.]

DNS 117

DNS Malware Internet Internet 117

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 […].

DNS 96

DNS Encryption 96

Security Boulevard

JUNE 9, 2022

Key Features of this attack: The new malware is a.NET based DNS Backdoor which is a customized version of the open source tool “DIG.net”. The malware leverages a DNS attack technique called "DNS Hijacking" in which an attacker- controlled DNS server manipulates the response of DNS queries and resolve them as per their malicious requirements.

DNS 98

DNS Malware Energy and Utilities Telecommunications 98

CSO Magazine

MARCH 29, 2021

Being the backbone of the internet, the Domain Name System (DNS) protocol has undergone a series of improvements and enhancements over the past few years.

DNS 143

DNS Encryption Internet Internet 143

Schneier on Security

APRIL 18, 2019

DNS hijacking isn't new, but this seems to be an attack of uprecidented scale: Researchers at Cisco's Talos security division on Wednesday revealed that a hacker group it's calling Sea Turtle carried out a broad campaign of espionage via DNS hijacking, hitting 40 different organizations.

DNS 253

DNS Internet Internet Risk 253

CSO Magazine

MARCH 14, 2023

During every quarter last year, between 10% and 16% of organizations had DNS traffic originating on their networks towards command-and-control (C2) servers associated with known botnets and various other malware threats, according to a report from cloud and content delivery network provider Akamai.

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DNS Malware Ransomware 139

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 82

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 98

DNS Cybersecurity 98

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 80

Bleeping Computer

MAY 6, 2021

Attackers can use a newly disclosed domain name server (DNS) vulnerability publicly known as TsuNAME as an amplification vector in large-scale reflection-based distributed denial of service (DDoS) attacks targeting authoritative DNS servers. [.].

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DNS DDOS 142

Security Boulevard

NOVEMBER 9, 2021

The domain name system (DNS) is known as the phone book of the internet, quickly connecting users from their devices to their desired content. The post DNSSEC: The Secret Weapon Against DNS Attacks appeared first on Security Boulevard. The post DNSSEC: The Secret Weapon Against DNS Attacks appeared first on Security Boulevard.

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DNS Internet Internet Network Security 141

Security Affairs

JANUARY 22, 2023

Roaming Mantis threat actors were observed using a new variant of their mobile malware Wroba to hijack DNS settings of Wi-Fi routers. Researchers from Kaspersky observed Roaming Mantis threat actors using an updated variant of their mobile malware Wroba to compromise Wi-Fi routers and hijack DNS settings. Agent.eq (a.k.a

DNS 90

DNS Malware Mobile Hacking 90

Heimadal Security

NOVEMBER 1, 2022

A ‘DNS server’, also known as ‘name server’ or ‘domain name system server’ is a computer server that stores a database of hostnames and their corresponding IP addresses and in most situations resolves or translates those names to the requested IP addresses. The post What Is a DNS Server?

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DNS Software 87

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 80

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.

DNS 85

DNS Cybersecurity 85

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 Malware Telecommunications Phishing 145

Security Boulevard

FEBRUARY 13, 2021

DNS poisoning, also known as DNS cache poisoning or DNS spoofing, is a highly deceptive cyber attack in which hackers redirect web traffic toward fake web servers and phishing websites. The post What is DNS Poisoning? aka DNS Spoofing) | Keyfactor appeared first on Security Boulevard.

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DNS Cyber Attacks Phishing 120

Security Affairs

SEPTEMBER 25, 2022

The Internet Systems Consortium (ISC) fixed six remotely exploitable vulnerabilities in the BIND DNS software. The Internet Systems Consortium (ISC) this week released security patches to address six remotely exploitable vulnerabilities in BIND DNS software. SecurityAffairs – hacking, BIND DNS). Pierluigi Paganini.

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DNS Software Hacking Cybersecurity 121

The Hacker News

JANUARY 27, 2023

The Internet Systems Consortium (ISC) has released patches to address multiple security vulnerabilities in the Berkeley Internet Name Domain (BIND) 9 Domain Name System (DNS) software suite that could lead to a denial-of-service (DoS) condition. "A

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DNS Software Cybersecurity Internet 128

Security Boulevard

SEPTEMBER 12, 2021

While awareness of DNS security continues to grow, the cost, frequency and number of attacks remain high, while the pandemic and resulting hybrid work environments have resulted in huge disruption for organizations. The post Costly DNS Attacks on the Rise appeared first on Security Boulevard.

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DNS Network Security Cybersecurity 122

Bleeping Computer

MARCH 24, 2022

Microsoft has addressed a new known issue causing DNS stub zones loading failures that could lead to DNS resolution issues on Windows Server 2019 systems. [.].

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DNS 138

Dark Reading

JANUARY 31, 2023

By watching DNS traffic for suspicious activity, organizations can halt the damage. Malware eventually has to exfiltrate the data it accessed.

DNS 120

DNS Malware 120

Security Boulevard

NOVEMBER 8, 2021

For infosec professionals, that same spectrum of reactions may come into play when detecting a hijack on your domain name system (DNS). The post DNS Hijacking: What You Need to Know appeared first on Security Boulevard. When associated with airlines, in particular, the word can elicit feelings ranging from concern to outright terror.

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DNS InfoSec Network Security Cybersecurity 133

Security Boulevard

APRIL 6, 2022

Domain Name Server (DNS) spoofing is a type of attack in which the DNS records are altered to redirect the online traffic to a spoofed website that resembles the original destination. The post What is DNS Spoofing? appeared first on Security Boulevard.

DNS 97

DNS Hacking 97

The Hacker News

AUGUST 11, 2021

Cybersecurity researchers have disclosed a new class of vulnerabilities impacting major DNS-as-a-Service (DNSaaS) providers that could allow attackers to exfiltrate sensitive information from corporate networks. "We

DNS 124

DNS Cybersecurity 124

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.

DNS 122

DNS IoT Hacking Cybersecurity 122

Security Affairs

MARCH 17, 2022

Researchers uncovered a new Linux botnet, tracked as B1txor20, that exploits the Log4J vulnerability and DNS tunnel. “In short, B1txor20 is a Backdoor for the Linux platform, which uses DNS Tunnel technology to build C2 communication channels. In this way, Bot and C2 achieve communication with the help of DNS protocol.”

DNS 133

DNS Malware Hacking Encryption 133

Malwarebytes

JUNE 1, 2022

That’s where DNS filtering comes in. But first, DNS in a nutshell. So normally, every time your customer types in your web address, their computer makes a request to a DNS server. The DNS server, in turn, tells the computer where to go. But which web-based cyberthreats in particular does DNS filtering stop, you ask?

DNS 100

DNS DDOS Phishing Spyware 100

Krebs on Security

FEBRUARY 18, 2019

” The DNS part of that moniker refers to the global “ D omain N ame S ystem ,” 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. PASSIVE DNS.

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DNS Internet Internet Passwords 259

Bleeping Computer

MAY 3, 2022

A vulnerability in the domain name system (DNS) component of a popular C standard library that is present in a wide range of IoT products may put millions of devices at DNS poisoning attack risk. [.].

DNS 139

DNS IoT Risk 139

SecureList

JANUARY 19, 2023

Kaspersky has been investigating the actor’s activity throughout 2022, and we observed a DNS changer function used for getting into Wi-Fi routers and undertaking DNS hijacking. At that time, the criminals compromised Wi-Fi routers for use in DNS hijacking, which is a very effective technique. Agent.eq (a.k.a

DNS 103

DNS Mobile Malware Phishing 103

Security Boulevard

MAY 9, 2023

Security functions across these components are […] The post Role of DNS-level security for SASE appeared first on Aryaka. The post Role of DNS-level security for SASE appeared first on Security Boulevard.

DNS 52

DNS Firewall 52

The Hacker News

JANUARY 20, 2023

Threat actors associated with the Roaming Mantis attack campaign have been observed delivering an updated variant of their patent mobile malware known as Wroba to infiltrate Wi-Fi routers and undertake Domain Name System (DNS) hijacking.

DNS 131

DNS Malware Mobile 131

Security Affairs

MAY 9, 2021

A flaw in some DNS resolvers, tracked as TsuNAME, can allow attackers to launch DDoS attacks against authoritative DNS servers. domains), and the Information Science Institute at the University of Southern California has discovered a vulnerability, named TsuNAME, in some DNS resolvers. domains), InternetNZ (the registry for.nz

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DNS DDOS Hacking Information Security 135