Security Boulevard

MARCH 21, 2025

Originating from the conferences events located at the Las Vegas Convention Center ; and via the organizations YouTube channel. Permalink The post DEF CON 32 – Recon Village – Pushing the Limits of Mass DNS Scanning appeared first on Security Boulevard.

DNS 52

DNS Education Cybersecurity 52

The Last Watchdog

MARCH 28, 2019

A couple of high-profile distributed denial-of-service (DDoS) attacks will surely go down in history as watershed events – each for different reasons. 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. Beyond DDoS.

DDOS 263

DDOS IoT DNS Internet 263

Krebs on Security

OCTOBER 11, 2022

The new zero-day flaw– CVE-2022-41033 — is an “elevation of privilege” bug in the Windows COM+ event service, which provides system notifications when users logon or logoff. Microsoft says the flaw is being actively exploited, and that it was reported by an anonymous individual.

DNS 341

DNS Internet Internet Cyber threats 341

Troy Hunt

MARCH 9, 2022

When that's the case, they're listed in the screen below but as this is a brand new domain that's presently doing absolutely nothing, we'll ignore that and just continue (we'll add DNS records later when the domain is bound to the Cloudflare Pages resource): Nameserver time!

Passwords 363

Passwords DNS Accountability Risk 363

Troy Hunt

DECEMBER 13, 2019

Melbourne where I was due to do the closing keynote of the event. That's now done, questions answered and beers drunk and I left the event feeling great. I recorded this right before heading out for my final conference talk of the year at YOW!

DNS 168

DNS 168

Cisco Security

JUNE 13, 2022

For example, the security event might involve requests to communicate with an IP address, and the analyst would say, “This IP address belongs to my DNS server, so the traffic is legitimate.” Wait, what is the baseline, and how was it violated in this particular security event?” Annotated security events.

DNS 143

DNS Engineering Authentication Malware 143

Security Boulevard

AUGUST 6, 2024

Threat Intelligence Report Date: August 6, 2024 Prepared by: David Brunsdon, Threat Intelligence - Security Engineer, HYAS Dynamic DNS (DDNS) is a service that automatically updates the Domain Name System (DNS) in real-time to reflect changes in the IP addresses of a domain.

DNS 69

DNS Malware Social Engineering Software 69

Cisco Security

NOVEMBER 2, 2021

This provides a better way of handling failover events. adds support for geolocation and latency-based DNS redirection. Geolocation-based DNS redirection : Figure 1 shows geolocation-based load balancing. Geolocation-based DNS redirection : Figure 1 shows geolocation-based load balancing. Resources.

Firewall 133

Firewall DNS Architecture Authentication 133

Krebs on Security

MARCH 28, 2021

I’d been doxed via DNS. Here are a few of the more notable examples , although all of those events are almost a decade old. Just my Social Security number. That same list today would be pages long.

Hacking 363

Hacking Cybercrime DNS Internet 363

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 108

DNS Encryption Firewall Network Security 108

Security Boulevard

APRIL 18, 2024

Originating from the conference’s events situated at the Anaheim Marriott ; and via the organizations YouTube channel. Permalink The post USENIX Security ’23 – NRDelegationAttack: Complexity DDoS attack on DNS Recursive Resolvers appeared first on Security Boulevard.

DNS 64

DNS DDOS Network Security 64

Cisco Security

OCTOBER 28, 2021

Within Cisco Umbrella, we can look at the different events that it logs while monitoring DNS traffic. The Activity Search page shows information such as Identity (from Active Directory configuration), DNS Type, Internal IP, External IP, and the action that Umbrella took on each event.

Ransomware 144

Ransomware DNS Marketing Engineering 144

Security Boulevard

APRIL 17, 2024

Originating from the conference’s events situated at the Anaheim Marriott ; and via the organizations YouTube channel. Permalink The post USENIX Security ’23 – The Maginot Line: Attacking The Boundary Of DNS Caching Protection appeared first on Security Boulevard.

DNS 64

DNS 64

Security Boulevard

APRIL 17, 2024

Originating from the conference’s events situated at the Anaheim Marriott ; and via the organizations YouTube channel. Permalink The post USENIX Security ’23 – Two Sides Of The Shield: Understanding Protective DNS Adoption Factors appeared first on Security Boulevard.

DNS 64

DNS 64

Security Boulevard

APRIL 16, 2024

Originating from the conference’s events situated at the Anaheim Marriott ; and via the organizations YouTube channel. Permalink The post USENIX Security ’23 – User Awareness and Behaviors Concerning Encrypted DNS Settings in Web Browsers appeared first on Security Boulevard.

DNS 64

DNS Encryption 64

Security Boulevard

APRIL 18, 2024

Originating from the conference’s events situated at the Anaheim Marriott ; and via the organizations YouTube channel. Permalink The post USENIX Security ’23 – Fourteen Years in the Life: A Root Server’s Perspective on DNS Resolver Security appeared first on Security Boulevard.

DNS 64

DNS Network Security 64

Security Boulevard

MARCH 20, 2024

Originating from the conference’s events situated at the Anaheim Marriott ; and via the organizations YouTube channel. Permalink The post USENIX Security ’23 – Rasmus Dahlberg, Tobias Pulls – Timeless Timing Attacks And Preload Defenses In Tor’s DNS Cache appeared first on Security Boulevard.

DNS 64

DNS 64

eSecurity Planet

JANUARY 6, 2021

Stack components impacted include DNS, IPv6, IPv4, TCP, ICMP, LLMNR, and mDNS. Forescout found DNS to be the most vulnerable due to its complexity, with TCP and IPv4 and IPv6 sub-stacks not far behind. DNS Cache Poisoning: 2. DNS Cache Poisoning. Also Read: How to Prevent DNS Attacks. Rely on internal DNS servers.

IoT 141

IoT DNS Internet Internet 141

CyberSecurity Insiders

MARCH 13, 2021

This activity was shortly followed by escalating activity involving brute force activity, remote code execution attempts, and exfiltration channel probing attempts all exploiting vulnerable DNS services on the domain controllers. The post Stories from the SOC – DNS recon + exfiltration appeared first on Cybersecurity Insiders.

DNS 54

DNS Threat Detection Cybersecurity Cyber threats 54

Security Boulevard

AUGUST 12, 2021

The post DEF CON 29 Main Stage – Shir Tamari’s & Ami Luttwak’s ‘New Class Of DNS Vulns Affecting DNS-As-Service Platforms’ appeared first on Security Boulevard. Our thanks to DEFCON for publishing their outstanding DEFCON Conference Main Stage Videos on the groups' YouTube channel.

DNS 59

DNS Education InfoSec 59

Webroot

MARCH 29, 2021

An endpoint DNS solution could have stopped the Trojanized Orion version by refusing to resolve the domain names of the command-and-control servers, again disrupting the infection to the point that no real damage could be done. But recent events have worked to undermine this growing understanding. The “next one” will look different.

Hacking 139

Hacking DNS Firewall Malware 139

eSecurity Planet

JUNE 8, 2022

We had the InsightIDR core services and endpoint monitoring set up in our lab in just a few hours, and started receiving notifications about security events immediately. Configuring InsightIDR event sources. Configuring InsightIDR event sources. Also read: Testing & Evaluating SIEM Systems: A Review of Rapid7 InsightIDR.

DNS 109

DNS Data collection Marketing Passwords 109

CyberSecurity Insiders

FEBRUARY 16, 2023

Block outbound DNS Requests – Whenever a malware strikes a server, the first thing it does is to establish a connection with a command-and-control server. Thus, blocking DNS systems from receiving external queries must become a priority and done technically.

Backups 116

Backups Ransomware DNS Encryption 116

Security Boulevard

MARCH 18, 2025

This includes: Passive DNS Data : Historical records of DNS queries, enabling investigators to trace domains used in past attacks. Infrastructure Intelligence fingerprints past DNS resolutions and connects that domain to command-and-control servers, associated IP addresses, and related malware samples.

DNS 59

DNS Cyber threats Malware Internet 59

eSecurity Planet

SEPTEMBER 24, 2021

While InsightIDR functions as a security information and event management (SIEM) solution, its functionality goes far beyond traditional SIEM products and extends to the budding XDR space. From the InsightIDR home dashboard, administrators can see metrics like users, events processed, notable behaviors, new alerts, honeypots, and more.

DNS 131

DNS Technology Cybersecurity Data collection 131

Cisco Security

DECEMBER 22, 2022

Integrating Meraki Scanning Data with Umbrella Security Events, by Christian Clasen. Cisco Umbrella : DNS visibility and security. Being part of the Black Hat NOC was an incredible experience, I was able to meet fantastic professionals, fully committed on making the event a success for all attendees and exhibitors.

DNS 103

DNS Malware Accountability Wireless 103

Schneier on Security

FEBRUARY 14, 2020

Each step is checked by everyone else, and the event is livestreamed. The module is activated, allowing the KSK private key to sign keys, using smart cards assigned to the ceremony participants. These credentials are stored in deposit boxes and tamper-proof bags in the second safe.

Internet 277

Internet Internet Engineering DNS 277

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.

DNS 101

DNS IoT Backups Mobile 101

SecureList

OCTOBER 18, 2021

As in the older DanBot instances, both variants supported similar custom C&C protocols tunneled over DNS or HTTP. Our investigation into Lyceum has shown that the group has evolved its arsenal over the years and shifted its usage from the previously documented.NET malware to new versions, written in C++.

DNS 133

DNS Telecommunications Malware Accountability 133

Cisco Security

DECEMBER 1, 2021

Within Cisco Umbrella, we can look at the different events that it logs while monitoring DNS traffic. For example, the Activity Search page shows information such as Identity (from Active Directory configuration), DNS Type, Internal IP, External IP, and Umbrella’s action on each event.

Ransomware 96

Ransomware DNS Marketing Engineering 96

SecureList

MARCH 10, 2021

After the user starts the program, it changes the DNS settings on the device so that all domains are resolved through the attackers’ servers, which, in turn, prevent users from accessing certain antivirus sites, such as Malwarebytes.com. Distributed under the name adshield[.]pro, allusersprofile%start menuprogramsstartupflock.

DNS 145

DNS Antivirus Malware Encryption 145

SecureWorld News

OCTOBER 4, 2021

You want to catch up on what is going on in the world, wish your friends a happy birthday, see reactions to last night's new TV episode or sporting event. Brian Krebs shared this on Twitter this morning: Confirmed: The DNS records that tell systems how to find [link] or [link] got withdrawn this morning from the global routing tables.

DNS 98

DNS Media Engineering Accountability 98

Security Affairs

MAY 2, 2019

Indeed we might observe a File-based command and control (a quite unusual solution) structure, a VBS launcher, a PowerShell Payload and a covert channel over DNS engine. According to Duo, “ OilRig delivered Trojans that use DNS tunneling for command and control in attacks since at least May 2016. It is not a TXT request.

DNS 111

DNS Computers and Electronics Penetration Testing Government 111

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.

Cyber Risk 159

Cyber Risk DNS Phishing Backups 159

Security Affairs

JUNE 4, 2020

As a result of this event, it was revealed that some emails received from customers during the period from May 31 to June 1, 2020 could be illegally obtained by a third party.” ” According to the Japanese security expert Masafumi Negishi, threat actors modified the primary DNS entry for the coincheck.com domain. ????????????

Accountability 129

Accountability Phishing DNS Cryptocurrency 129

eSecurity Planet

NOVEMBER 3, 2022

DNS servers can be specifically targeted by attackers and vulnerable to various types of attacks. If the organization does not use it, UDP access to port 53 (DNS) should be blocked. For more information, see How to Prevent DNS Attacks. Steps to take in the event of a DDoS. Anti-DDoS Architecture. Anti-DDoS Tools.

DDOS 125

DDOS Firewall DNS Architecture 125

Security Affairs

OCTOBER 25, 2019

We're investigating reports of intermittent DNS resolution errors with Route 53 & our external DNS providers. According to the company status page, hackers were targeting the AWS DNS servers flooding them with junk network traffic. “We are investigating reports of occasional DNS resolution errors.

DDOS 74

DDOS DNS Advertising Engineering 74