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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DNS Social Engineering Malware Media 233

Security Affairs

FEBRUARY 9, 2021

Another interesting issue addressed by Microsoft with Microsoft February 2021 Patch Tuesday security updates is a Windows DNS Server Remote Code Execution vulnerability tracked as CVE-2021-24078. “This patch fixes a bug in the Windows DNS Server that could allow remote code execution on affected systems.

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DNS IoT Backups Mobile 99

Cisco Security

MARCH 16, 2021

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. When you type “example.com” in your browser, the request goes to a DNS server that matches the URL to an IP address. No snooping, no spoofing.

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Encryption DNS Threat Detection Internet 85

Security Boulevard

JUNE 22, 2023

Securing SMB Success: The Indispensable Role of Protective DNS Cyber attacks pose as much risk to small and medium-sized businesses (SMBs) as they do to large organizations — if not more. Implementing a Domain Name Service (DNS) security solution is the most efficient way to protect your business against a wide variety of attacks.

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DNS Small Business Cyber Attacks Antivirus 58

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.

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DNS Encryption Firewall Network Security 69

Security Boulevard

APRIL 26, 2022

In 2022, the same threat actor started spoofing various important entities in South Korea, including KRNIC (Korea Internet Information Center), Korean security vendors such as Ahnlab, cryptocurrency exchanges such as Binance, and others. Passive DNS data. This same email address was recently mentioned in Prevailion's blog.

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Phishing DNS Cryptocurrency Accountability 52

Duo's Security Blog

MARCH 2, 2022

The Universal Prompt provides a "frameless" experience (with OpenID Connect under the hood) that no longer renders the Duo Prompt inside an iframe.This circumvents the need to rely on an allowed hostnames list to provide security against domain name redirect and spoofing-type exploits.

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Authentication Phishing DNS Passwords 69

eSecurity Planet

JANUARY 28, 2022

The enterprise software and cloud giant said in a blog post this week that during the last six months of the year, there was a 40 percent increase in the number of DDoS attacks worldwide over the first half of 2021, with an average of 1,955 attacks per day and a maximum of 4,296 on Aug. Two Other Big DDoS Attacks. “UDP

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DDOS IoT Engineering DNS 136

Security Boulevard

OCTOBER 2, 2023

This blog examines the escalating phishing landscape, shortcomings of common anti-phishing approaches, and why implementing a Protective DNS service as part of a layered defense provides the most effective solution. URL spoofing and typosquatting techniques bypass casual inspection. This is where Protective DNS comes in.

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DNS Phishing Social Engineering Engineering 63

Security Affairs

JULY 1, 2019

“Surfacing during the latter half of 2018 and wrapped in a bespoke OceanLotus shellcode loader, this sample was first reported in a blog from Macnica Networks.” Back to nowadays, the Ratsnif RAT was improved with new capabilities that allow the threat to modify web pages and SSL hijacking.

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Malware Advertising DNS Manufacturing 62

Heimadal Security

JUNE 24, 2021

cloud security analysts were searching through Amazon Web Services’ Route53 Domain Name Service (DNS) when they noticed all of a sudden that its self-service domain registration system allowed them to create a new hosted zone with the same name as the authentic AWS name server it was utilizing. Earlier this year, Wiz.io

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DNS Government Authentication Cybersecurity 54

Pen Test Partners

AUGUST 24, 2023

With that in mind, and for those that weren’t able to attend, here’s a follow-up blog post. Accounts are susceptible to user spoofing when providing Kerberos tickets to *nix based services joined to an Active Directory realm. This blog was then later weaponised into a single python script and dubbed Sam the Admin.

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DNS Authentication Accountability Passwords 52

Malwarebytes

SEPTEMBER 14, 2022

From industry tips and best practices to the latest Malwarebytes product releases and how-tos, our Business newsletter is chock-full of the best of our business blog. DNS filtering. The next technology you need to prevent cyberattacks is a DNS filter. But first, a little bit about what DNS (domain name system) is.

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Technology DNS Cyber Insurance Insurance 67

Cisco Security

MAY 3, 2022

According to Cado, the software could be delivered by leveraging DNS over HTTPS to avoid detection at the network access layer and using compromised credentials to execute the software designed for Lambda environments. It is likely that Denonia has been running prior to this date, so adjust your investigations accordingly. Domains: denonia[.]xyz.

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DNS Threat Detection Software Cryptocurrency 101

Security Affairs

FEBRUARY 19, 2019

Email spoofing technique is used to impersonate the giant DHL; a popular distribution firm; sending a shipment notification to the user’s email inbox. Figure 2: Email spoofing and DHL impersonation. The malware tries to resolve the DNS: sameerd.net. As shown, the DNS has not been resolved. Conclusion.

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Malware Phishing DNS Engineering 78

Cisco Security

AUGUST 29, 2022

In part one of this issue of our Black Hat USA NOC (Network Operations Center) blog, you will find: Adapt and Overcome. The attacker took advantage of this openness, spoofed the SSIDs of the many training rooms and launched malicious attacks against the network. Building the Hacker Summer Camp network, by Evan Basta.

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Engineering Wireless Malware DNS 70

LRQA Nettitude Labs

APRIL 16, 2024

via DNS spoofing) to redirect the user to a malicious SSH server would be able to capture signatures in order to exploit this vulnerability if the user ignores the SSH key fingerprint change warning. However, an attacker who performs an active man-in-the-middle attack (e.g.

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Authentication DNS Software Encryption 71

Cisco Security

MAY 27, 2022

In part one of our Black Hat Asia 2022 NOC blog , we discussed building the network with Meraki: . Device type spoofing event by Jonny Noble . Device type spoofing event by Jonny Noble. From attendee to press to volunteer – coming back to Black Hat as NOC volunteer by Humphrey Cheung . drakefollow[.]com.

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Malware Accountability DNS Technology 72

Cisco Security

DECEMBER 22, 2022

In this blog about the design, deployment and automation of the Black Hat network, we have the following sections: Designing the Black Hat Network, by Evan Basta. I also observed an AP spoofing and broadcast de-authentication attack. Christian Clasen takes this available data to a new level in Part 2 of the blog.

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Engineering Mobile Malware Wireless 61

Cisco Security

MAY 26, 2022

In part one of this issue of our Black Hat Asia NOC blog, you will find: . Check out part two of the blog, Black Hat Asia 2022 Continued: Cisco Secure Integrations , where we will discuss integrating NOC operations and making your Cisco Secure deployment more effective: SecureX: Bringing Threat Intelligence Together by Ian Redden.

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Wireless Mobile Engineering Firewall 79

SecureList

FEBRUARY 16, 2021

The DTLS (Datagram Transport Layer Security) protocol is used to establish secure connections over UDP, through which most DNS queries, as well as audio and video traffic, are sent. To amplify the attack, the attackers sent requests to devices with the DTLS interface enabled, spoofing victims’ IP addresses.

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DDOS Cryptocurrency Marketing Internet 129

Webroot

JULY 6, 2022

But even if the message is coming from a legitimate organization doesn’t mean it isn’t a scam with criminals spoofing an email or impersonating a business. You gain even more protection if you are able to add on Security Awareness Trainings and DNS Protection. appeared first on Webroot Blog. Read the infographic.

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Social Engineering Engineering Scams Phishing 125