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. That changed on Jan.

DNS 264

DNS Internet Internet Government 264

NetSpi Technical

OCTOBER 19, 2023

It’s worth noting that this is a Preview release of this functionality, and is likely going to differ from what’s eventually fully released. What about if we bypass those proxy settings? Let’s try DNS. To quickly test if we have DNS outbound, we can use Burp Suite Collaborator. We can then use the results in our workbook.

DNS 97

DNS Internet Internet Phishing 97

Fox IT

AUGUST 11, 2022

This Saitama implant uses DNS as its sole Command and Control channel and utilizes long sleep times and (sub)domain randomization to evade detection. In May 2022, security firm Malwarebytes published a two 1 -part 2 blog about a malware sample that utilizes DNS as its sole channel for C2 communication. Introduction.

DNS 66

DNS Engineering Malware Encryption 66

SiteLock

AUGUST 27, 2021

Cybercriminals are constantly crawling the web for targets, and they’ll often go after websites you might not expect, such as a vegan cooking blog. So what does a hacker look for in a website? What can Abby do to protect her website? Joe’s Vegan Blog Cooks Up Comment Spam. What can Joe do to protect his blog?

Hacking 98

Hacking DDOS eCommerce Firewall 98

Daniel Miessler

SEPTEMBER 27, 2020

When done correctly it gives you the ability to adjust your defensive behaviors based on what you’re facing in real-world scenarios. To see what I mean, let’s look at some common security questions. Threat modeling is a superpower. And not just for applications, or networks, or a business—but for life. When do you stop?

VPN 326

VPN Risk Hacking Encryption 326

Vipre

JANUARY 27, 2021

Most of you have probably heard about encrypted DNS (DNS-over-HTTPS or DoH, and DNS-over-TLS or DoT) and have noticed that several of the major browser vendors have rolled out support for these newer protocols. But what about at the office? Maybe you don’t even run your own DNS server, so why would you care?

DNS 45

DNS Encryption 45

Security Boulevard

MARCH 3, 2023

Webinar: Emulating Threat Actors in OT Networks - DNS Tunneling Mar 23 @ 10:00 AM (PST) While it is possible to write signatures for malware of this type after analysis is completed, it takes time — time during which the malware is able to evade even the most advanced EDRs while it goes about its business. Next-gen protective DNS.

Phishing 59

Phishing DNS Malware Antivirus 59

Troy Hunt

NOVEMBER 25, 2020

So, what's to be done about it? In part 1 of this series, I posited that the IoT landscape is an absolute mess but Home Assistant (HA) does an admirable job of tying it all together. I also looked at custom firmware and soldering and why, to my mind, that was a path I didn't need to go down at this time. Let's dive into it.

IoT 358

IoT Firmware Risk Manufacturing 358

Malwarebytes

JUNE 15, 2022

And this is what sets Symbiote apart from other Linux malware. Symbiote’s evasion techniques (Source: Blackberry Threat Vector Blog ). It does this to hide malicious traffic on an infected Linux machine. The credentials are first encrypted with RC4 using an embedded key, and then written to a file.

Malware 65

Malware DNS Banking Engineering 65

eSecurity Planet

MARCH 14, 2022

Once activated, the Beacon allows for uploading files and sending command-and-control instructions stealthily, which is precisely what advanced threat actors want. The Cobalt Strike’s Command and Control protocol is a DNS-based communication that is pretty hard to detect compared to classic HTTP traffic.

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Energy and Utilities DNS Penetration Testing Ransomware 131

Cisco Security

MAY 17, 2021

This is what SASE (Secure Access Service Edge) is all about, and here at Cisco, we’ve spent the last few years perfecting the architecture and approach to help our customers address their new and evolving needs. It’s an exciting time in the world of networking and security. Now, she can work from home. How do you even design for this?

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Firewall Architecture Internet Internet 74

Security Affairs

MARCH 4, 2019

” reads a blog post published by the firm. What’s particularly interesting is Necurs’ regular cadence of going dark to avoid detection, reemerging to send new commands to infected hosts and then going dark again. ” continues the blog post. ” continues the blog post.

DNS 80

DNS Banking Advertising Ransomware 80

Kali Linux

FEBRUARY 13, 2022

It’s a large one, so it’s going to have its own blog post once ready to help demonstrate its importance to us. It’s a large one, so it’s going to have its own blog post once ready to help demonstrate its importance to us. The summary of the changelog since the 2021.4 The summary of the changelog since the 2021.4

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DNS Architecture Media Encryption 52

McAfee

DECEMBER 22, 2021

In this blog, we present an overview of how you can mitigate the risk of this vulnerability exploitation with McAfee Enterprise solutions. What the vulnerability allows a threat actor to do is initially only connect to a remote endpoint and establish a beachhead. Threat Summary. Attack Chain and Defensive Architecture.

Malware 98

Malware Risk Internet Internet 98

McAfee

SEPTEMBER 29, 2021

Some surveyed respondents admit to ignoring specific categories of alerts, and some turn off the security alerts associated with the security controls that generate much of the alert traffic. One of the important goals of SecOps is a faster and more effective collaboration among all personnel involved with security.

DNS 67

DNS Manufacturing Data breaches Risk 67

Kali Linux

NOVEMBER 27, 2022

In Secure Kali Pi (2022) , the first blog post in the Raspberry Pi series, we set up a Raspberry Pi 4 with full disk encryption. Interface Name First, we need to know what our wireless interface is called. We mentioned that we can leave it somewhere as a drop box.

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Firmware Wireless Passwords VPN 52

Fox IT

JANUARY 12, 2021

Our threat intelligence analysts noticed clear overlap between the various cases in infrastructure and capabilities, and as a result we assess with moderate confidence that one group was carrying out the intrusions across multiple victims operating in Chinese interests. In open source this actor is referred to as Chimera by CyCraft.

VPN 68

VPN Accountability Passwords DNS 68

Fox IT

NOVEMBER 1, 2023

The next part of this blog is divided into two parts: firstly, we look back at previous Blister payloads and configurations, and in the second part, we discuss the recent developments. After writing an extractor for these older versions, we made an overview of what Blister had been dropping in roughly the past two years.

Computers and Electronics 92

Computers and Electronics Encryption DNS Ransomware 92

McAfee

SEPTEMBER 14, 2021

McAfee customers are protected from the malware/tools described in this blog. A more detailed blog with specific recommendations on using the McAfee portfolio and integrated partner solutions to defend against this attack can be found here. MVISION Insights customers will have the full details, IOCs and TTPs shared via their dashboard.

Malware 144

Malware DNS Accountability Manufacturing 144

Cisco Security

AUGUST 29, 2022

In part one of our Black Hat USA 2022 NOC blog, we discussed building the network with Meraki: Adapt and Overcome. 25+ Years of Black Hat (and some DNS stats), by Alejo Calaoagan. All the Black Hat network traffic was supported by Meraki switches and wireless access points, using the latest Meraki gear donated by Cisco.

DNS 73

DNS Wireless Malware Firewall 73

Malwarebytes

OCTOBER 5, 2021

What we can say for sure, is that Facebook took itself and its stablemates out with a spectacular self-inflicted wound, in the form of a toxic Border Gateway Protocol (BGP) update. To route data across the Internet, Autonomous Systems need to know which IP addresses other Autonomous Systems either control or can route traffic to.

DNS 144

DNS Internet Internet Mobile 144

Troy Hunt

JANUARY 10, 2018

Especially in a rapidly modernising country with over a billion people (a huge number of which still live in poverty), there are many reasons why much of what Aadhaar sets out to achieve does make sense. India's Aadhaar implementation is the largest biometric system in the world, holding about 1.2 billion locals' data.

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Hacking Government Risk Encryption 279

Security Boulevard

JUNE 14, 2023

What can we learn about threat attacker infrastructure in today’s multifaceted threat landscape? What are the best ways to protect our valuable networks, servers and devices? You can be 99% secure and then have that 1% be what takes the company down. This is what sets us apart and powers our cyber security solutions.

DNS 101

DNS Malware Financial Services Architecture 101

Cisco Security

AUGUST 28, 2023

XDR (eXtended Detection and Response) Integrations At Black Hat USA 2023, Cisco Secure was the official Mobile Device Management, DNS (Domain Name Service) and Malware Analysis Provider. For example, an IP tried AndroxGh0st Scanning Traffic against the Registration server, blocked by Palo Alto Networks firewall.

Wireless 60

Wireless DNS Mobile Technology 60

Webroot

JUNE 21, 2021

It may be as simple as the deployment of antivirus plus backup and recovery applications for your end users, or a more complex approach with security operations center (SOC) tools or managed response solutions coupled with network security tools such as DNS and Web filtering, network and endpoint firewalls, VPNs, backup and recovery and others.

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Backups DNS Ransomware Antivirus 120

Cisco Security

JUNE 15, 2021

Everyone has been using and abusing the “next-generation” qualifier to describe any modern firewall product for far too long, so it is appropriate to drop this extraneous prefix and talk about what truly comes next for this technology. After all, the cloud is just your stuff running in someone’s else data center. Insert Your Firewall Here.

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Firewall Software Network Security Encryption 128

Duo's Security Blog

JANUARY 28, 2022

What’s the Vision? This includes the use of cloud based infrastructure Applications — tested internally and externally Data — categorized and tagged using cloud security services and enterprise logging capabilities What’s Notable in the Memo? In addition to detailing the “what” of the strategy, OMB also details the “how.”

Authentication 52

Authentication Government DNS Encryption 52

LRQA Nettitude Labs

APRIL 16, 2024

Hence, we * use a totally different scheme instead. * * What we do is to take a SHA-512 (_big_) hash of the private * key x, and then feed this into another SHA-512 hash that * also includes the message hash being signed. PuTTY, a popular Windows SSH client, contains a flaw in its P-521 ECDSA implementation.

Authentication 71

Authentication DNS Software Encryption 71

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. AP Placement Planning, by Sandro Fasser. Wi-Fi Air Marshal, by Jérémy Couture, Head of SOC, Paris 2024 Olympic Games. Meraki Dashboards, by Rossi Rosario Burgos.

Engineering 61

Engineering Mobile Malware Wireless 61

Security Boulevard

APRIL 13, 2022

To prevent the attack techniques noted in this blog post, disable the “Allow connection fallback to NTLM” client push installation setting, which is enabled by default in SCCM. SharpSCCM is a tool that can be used to demonstrate that this attack is possible against the current version of Microsoft Endpoint Configuration Manager (ConfigMgr).

Authentication 52

Authentication Accountability Penetration Testing Software 52

Cisco Security

AUGUST 26, 2022

With the Cisco Security Connector for iOS integration, FAMOC MDM extends its enterprise mobility management with an extra layer of network security and traffic analysis tool, giving IT admins tools to make actionable decisions and design access control policies. This new integration supports Umbrella proxy, cloud firewall, IP, and DNS logs.

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Firewall Authentication Passwords Threat Detection 114