Security Affairs

JULY 14, 2019

The UK’s National Cyber Security Centre (NCSC) issued a security advisory to warn organizations of DNS hijacking attacks and provided recommendations this type of attack. In response to the numerous DNS hijacking attacks the UK’s National Cyber Security Centre (NCSC) issued an alert to warn organizations of this type of attack.

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Google Security

MARCH 28, 2024

Tianhao Chi and Puneet Sood, Google Public DNS The Domain Name System (DNS) is a fundamental protocol used on the Internet to translate human-readable domain names (e.g., When a user enters a domain name in their browser, the DNS resolver (e.g. Google Public DNS). www.example.com) into numeric IP addresses (e.g.,

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Security Affairs

JANUARY 23, 2019

DHS has issued a notice of a CISA emergency directive urging federal agencies of improving the security of government-managed domains (i.e.gov) to prevent DNS hijacking attacks. The notice was issued by the DHS and links the emergency directive Emergency Directive 19-01 titled “Mitigate DNS Infrastructure Tampering.”.

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Krebs on Security

JANUARY 22, 2019

Experts at Cisco Talos and other security firms quickly drew parallels between the two mass spam campaigns, pointing to a significant overlap in Russia-based Internet addresses used to send the junk emails. When it was initially set up, it took advantage of two managed DNS servers assigned to it by GoDaddy — ns17.domaincontrol.com,

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Security Affairs

FEBRUARY 12, 2024

Avoid entering any data if you see a warning message about a site’s authenticity. DNS Spoofing DNS (Domain Name System) is like the internet’s phone book, translating domain names into IP addresses. Always verify the authenticity of Wi-Fi networks before connecting, especially in public places.

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CyberSecurity Insiders

APRIL 12, 2023

E-mail, also referred to as electronic mail, is an internet service which allows people and digital services to transmit messages(letters) in electronic form across Internet. SPF: also known as Sender Policy Framework, is a DNS record used for authentication mechanism in email addresses. What is an e-mail?

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Krebs on Security

FEBRUARY 4, 2019

Godaddy.com , the world’s largest domain name registrar, recently addressed an authentication weakness that cybercriminals were using to blast out spam through legitimate, dormant domains. The domains documented by MyOnlineSecurity all had their DNS records altered between Jan. 31 and Feb. 22 report on the GoDaddy weakness.

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The Last Watchdog

MARCH 28, 2019

The author of Mirai used a sledgehammer to kill a fly: the DDoS bombardment was so large that it also wiped out Dyn , a UK-based internet performance vendor. The Spamhaus attacker, for instance, noticed that there were literally millions of domain name system (DNS) resolvers that remained wide open all over the internet.

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Approachable Cyber Threats

FEBRUARY 1, 2024

or higher ❯ Format messages according to the Internet Message Format standard ❯ Don’t impersonate Gmail “from:” headers. To get started: ❯ Have a DMARC Policy for your DNS. to avoid ever reaching a spam rate of 0.3% Yahoo will start enforcing a 0.3% threshold based on user-reported spam rates. Sending IPs must have a PTR record.

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The Last Watchdog

JUNE 1, 2021

The Pharming attacks are carried out by modifying the settings on the victim’s system or compromising the DNS server. Manipulating the Domain Name Service (DNS) protocol and rerouting the victim from its intended web address to the fake web address can be done in the following two ways: •Changing the Local Host file.

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Krebs on Security

MARCH 31, 2020

PT Monday evening, Escrow.com’s website looked radically different: Its homepage was replaced with a crude message in plain text: The profanity-laced message left behind by whoever briefly hijacked the DNS records for escrow.com. Running a reverse DNS lookup on this 111.90.149[.]49 Image: Escrow.com.

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Krebs on Security

APRIL 9, 2024

Microsoft today released updates to address 147 security holes in Windows, Office , Azure ,NET Framework , Visual Studio , SQL Server , DNS Server , Windows Defender , Bitlocker , and Windows Secure Boot. Yes, you read that right. “As far as I can tell, it’s the largest Patch Tuesday release from Microsoft of all time.”

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Krebs on Security

JANUARY 24, 2020

13, 2020, which was the date the fraudsters got around to changing the domain name system (DNS) settings for e-hawk.net. That alert was triggered by systems E-HAWK had previously built in-house that continually monitor their stable of domains for any DNS changes. Dijkxhoorn said his company first learned of the domain theft on Jan.

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eSecurity Planet

MAY 24, 2023

The DomainKeys Identified Mail (DKIM) email authentication standard enables email servers to check incoming emails to verify the sender and detect email message alterations. A successful DKIM check also verifies ownership of the email by matching the organization in the “from” fields of the email with the DNS associated with the organization.

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Security Affairs

MAY 11, 2023

. “Successful exploits could allow attackers to monitor users’ internet activity, highjack internet connections and redirect traffic to malicious websites or inject malware into network traffic. The remaining ones are authentication bypass and command injection flaws. ” concludes the advisory.

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Google Security

MARCH 2, 2023

Additionally, Google Domains is now making an API available to allow for DNS-01 challenges with Google Domains DNS servers to issue and renew certificates automatically. Google Domains and ACME DNS-01 ACME uses challenges to validate domain control before issuing certificates. Under section “ACME DNS API”, click “Create token”.

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The Security Ledger

DECEMBER 29, 2021

Mark talks about how the Internet community can come together ahead of the next vulnerability to make sure the. Mark talks about how the Internet community can come together ahead of the next vulnerability to make sure the mistakes that are evident in the response to Log4j aren’t repeated. . Read the whole entry. »

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Malwarebytes

OCTOBER 4, 2023

Exim is a message transfer agent (MTA) originally developed at the University of Cambridge for use on Unix systems connected to the internet, and is freely available under the terms of the GNU General Public Licence. Authentication is not required to exploit this vulnerability." million servers online.

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Krebs on Security

FEBRUARY 26, 2023

The hackers were able to change the Domain Name System (DNS) records for the transaction brokering site escrow.com so that it pointed to an address in Malaysia that was host to just a few other domains, including the then brand-new phishing domain servicenow-godaddy[.]com. The key works without the need for any special software drivers.

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eSecurity Planet

AUGUST 8, 2022

When organizations implement Domain-based Message Authentication, Reporting and Conformance ( DMARC ), they expect to tighten email security and protect against spoofing and other spam email attacks. DMARC provides widely established standards for email authentication and is adopted by all U.S. What is DKIM? What is SPF?

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Approachable Cyber Threats

FEBRUARY 1, 2024

or higher Format messages according to the Internet Message Format standard Don’t impersonate Gmail “from:” headers. If you maintain your own mail servers, validate that each IP address has a corresponding PTR record in your DNS (also known as forward and reverse DNS or a hostname). to avoid ever reaching a spam rate of 0.3%

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eSecurity Planet

JUNE 1, 2023

The Domain-based Message Authentication, Reporting and Conformance (DMARC) standard for email authentication is adopted by all U.S. DMARC addresses weaknesses in other email authentication standards to check for misleading “From” fields in emails and to improve tracking of potential spoofing campaigns. How Does DMARC Work?

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eSecurity Planet

DECEMBER 8, 2023

Domain name service (DNS) attacks threaten every internet connection because they can deny, intercept, and hijack connections. With the internet playing an increasing role in business, securing DNS plays a critical role in both operations and security. Everything You Need to Know.

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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.

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Cisco Security

MAY 17, 2022

As the first line of defense against threats on the internet wherever users go, Umbrella delivers visibility into all cloud services in use across your environment and blocks all risky applications. Two Umbrella versions are available on the AWS Marketplace – Umbrella DNS Security Essentials and Umbrella DNS Security Advantage.

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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.

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Security Affairs

OCTOBER 1, 2018

Attackers have already hijacked over 100,000 home routers, the malicious code allows to modify DNS settings to hijack the traffic and redirect users to phishing websites. GhostDNS reminds us of the infamous DNSChanger malware that made the headlines for its ability to change DNS settings on the infected device.

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Krebs on Security

NOVEMBER 21, 2020

“This gave the actor the ability to change DNS records and in turn, take control of a number of internal email accounts. What’s more, the attack on escrow.com redirected the site to an Internet address in Malaysia that hosted fewer than a dozen other domains, including the phishing website servicenow-godaddy.com.

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eSecurity Planet

JULY 25, 2022

The domain name system (DNS) is basically a directory of addresses for the internet. Your browser uses DNS to find the IP for a specific service. For example, when you enter esecurityplanet.com, the browser queries a DNS service to reach the matching servers, but it’s also used when you send an email.

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Schneier on Security

MAY 1, 2018

Researchers at Princeton University have released IoT Inspector , a tool that analyzes the security and privacy of IoT devices by examining the data they send across the Internet. QuickDDNS is a Dynamic DNS service provider operated by Dahua. They've already used the tool to study a bunch of different IoT devices. No surprises there.

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The Last Watchdog

JULY 1, 2019

NormShield found that all of the 2020 presidential hopefuls, thus far, are making sure their campaigns are current on software patching, as well as Domain Name System (DNS) security; and several are doing much more. Beyond Simple Passwords : Provides detailed information on keeping strong passwords and deploying two-factor authentication.

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Security Affairs

SEPTEMBER 21, 2019

In December 2017, the popular cryptocurrency exchange EtherDelta was hacked, attackers conducted a DNS attack that allowed to steal at least 308 ETH ($266,789 at the time of the hack) as well as a large number of tokens. Once gained the access the Cloudflare account they were able to lock out any other employee of the company.

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CyberSecurity Insiders

MARCH 21, 2021

Two-factor authentication . One of the most common mistakes made by small businesses is that they adopt all new IT equipment and computers but leave their internet and Wi-Fi susceptible to external threats. In fact, over 25% of small businesses are using a VPN to access the internet. Anti-virus and anti-malware . Firewalls .

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eSecurity Planet

DECEMBER 23, 2020

As a result, companies are relying on virtual private networks (VPNs) , which establish encrypted connections to enterprise applications over the public internet, to connect their workforce. Knowing this, companies can ensure they properly secure their VPNs by enabling and requiring two-factor authentication as a second layer of protection.

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Security Affairs

DECEMBER 24, 2018

” Once the mobile app has discovered the IP address of the lights, it authenticates with them, receives an authentication token and retrieves information about the device. Experts found a flaw in the authentication process, it only authenticates the lights to the app and not visa- versa. .

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Security Affairs

SEPTEMBER 11, 2019

change DNS settings to hijack the traffic, perform MitM attacks). Anyone with access to the web-based management IP address can read the files without any authentication. The device leaks the MD5 hash of the device password by accessing the following URL without requiring any authentication. ” reads the security advisory.

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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.”.

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