SC Magazine

MARCH 4, 2021

A PDNS service uses existing DNS protocols and architecture to analyze DNS queries and mitigate threats. A PDNS can log and save suspicious queries and provide a blocked response, delaying or preventing malicious actions – such as ransomware locking victim files – while letting organizations investigate using those logged DNS queries.

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DNS Architecture Firewall Malware 131

Malwarebytes

JUNE 1, 2022

Everything from rootkits to ransomware threaten not just financial losses, but also significant network downtime and reputational damage as well. 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.

DNS 79

DNS DDOS Phishing Spyware 79

Cisco Security

MARCH 11, 2021

After examining topics such as the MITRE ATT&CK framework , LOLBins , and others, this release will look at DNS traffic to malicious sites. We’ll also look at malicious DNS activity—the number of queries malicious sites receive. Organizations and malicious DNS activity. Overview of analysis. Cryptomining.

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DNS Phishing Ransomware Internet 61

CyberSecurity Insiders

FEBRUARY 16, 2023

We all know that backup servers are only the sole saviors to an organization when a ransomware incident strikes their IT infrastructure. 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.

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Backups Ransomware DNS Encryption 116

Malwarebytes

AUGUST 18, 2022

With Malwarebytes DNS filtering , however, you can prevent a large swath of phishing attacks. Our DNS filtering module extends our Nebula platform to help prevent risks introduced from nefarious websites and downloadable web content. How to block phishing domains with DNS filtering. Photo credits: Phishing.org.

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DNS Phishing Small Business Spyware 63

CSO Magazine

AUGUST 25, 2022

of monitored devices communicated with domains associated with malware or ransomware at least once during the second quarter of 2022. The findings are based on DNS data and Akamai’s visibility into carrier and enterprise traffic across different industries and geographies. of devices accessed phishing domains with 0.8%

DNS 69

DNS Phishing Malware Ransomware 69

Webroot

APRIL 13, 2021

Ransomware attacks generate big headlines when the targets are government entities, universities and healthcare organizations. But there’s one increasingly frequent target of ransomware attacks that tends to slip under the radar. This includes essential security measures like firewalls, endpoint protection and DNS protection.

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Ransomware DNS Firewall Security Awareness 122

Security Affairs

APRIL 7, 2024

The flaw affects multiple D-Link NAS devices, including models DNS-340L, DNS-320L, DNS-327L, and DNS-325. The flaw impacts the following devices: DNS-320L Version 1.11, Version 1.03.0904.2013, Version 1.01.0702.2013 DNS-325 Version 1.01 DNS-327L Version 1.09, Version 1.00.0409.2013 DNS-340L Version 1.08

Internet 132

Internet Internet DNS Hacking 132

Cisco Security

AUGUST 11, 2021

The REvil ransomware family has been in the news due to its involvement in high-profile incidents, such as the JBS cyberattack and the Kaseya supply chain attack. The threat actors behind REvil attacks operate under a ransomware-as-a-service model. Figure 1-DNS activity surrounding REvil/Sodinokibi.

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Ransomware DNS Encryption Backups 129

Krebs on Security

FEBRUARY 4, 2019

Spammy Bear targeted dormant but otherwise legitimate domains that had one thing in common: They all at one time used GoDaddy’s hosted Domain Name System (DNS) service. But on or around February 1, a new spam campaign that leveraged similarly hijacked domains at GoDaddy began distributing Gand Crab , a potent strain of ransomware.

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DNS Ransomware Accountability Internet 246

SecureList

DECEMBER 18, 2020

In the initial phases, the Sunburst malware talks to the C&C server by sending encoded DNS requests. These requests contain information about the infected computer; if the attackers deem it interesting enough, the DNS response includes a CNAME record pointing to a second level C&C server. avsvmcloud[.]com” avsvmcloud[.]com”

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DNS Telecommunications Malware Encryption 75

Cisco Security

OCTOBER 28, 2021

Ransomware is more dangerous than ever before. As reported by Reuters , the ransomware infection didn’t just disrupt the flow of fuel to cities directly served by the Colonial Pipeline. Simultaneously, ransomware actors are looking to profit off successful attacks as much as possible.

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Ransomware DNS Marketing Engineering 108

Security Affairs

NOVEMBER 5, 2021

A new threat actor is exploiting ProxyShell flaws in attacks aimed at Microsoft Exchange servers to deploy the Babuk Ransomware in corporate networks. Talos researchers warn of a new threat actor that is hacking Microsoft Exchange servers by exploiting ProxyShell flaws to gain access to corporate and deploy the Babuk Ransomware.

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Ransomware Backups Encryption DNS 126

Security Boulevard

MAY 17, 2024

HYAS Protect protective DNS includes a user-friendly interface and four core deployment methods. Organizations of any size can monitor traffic with HYAS Protect’s cloud-based DNS resolver. DNS data from HYAS Protect allows organizations to identify their riskiest users and prioritize proactive security measures.

DNS 57

DNS Engineering Phishing Malware 57

Hacker Combat

JULY 5, 2021

A new malicious software (ransomware) variant that leverages Golang has been released. CrowdStrike obtained a specimen of the new ransomware strain, which has not been named yet. ” Still, unlike FiveHands and HelloKitty, the new ransomware variant relies on a Go-based packer that encrypts its C++ malicious software payload.

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Ransomware DNS Software Encryption 132

Security Affairs

AUGUST 18, 2021

Researchers conducted a new analysis of the Diavol ransomware and found new evidence of the link with the gang behind the TrickBot botnet. In July, researchers from Fortinet reported that a new ransomware family, tracked as Diavol, might have been developed by Wizard Spider , the cybercrime gang behind the TrickBot botnet.

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Ransomware DNS Cybercrime Malware 100

Security Affairs

JUNE 24, 2021

A new Trojan written in the Go programming language, tracked as ChaChi, was involved in ransomware attacks against government agencies and US schools. Chashell is a reverse shell over DNS provider, while Chisel is a port-forwarding tool. This leaves their networks more vulnerable to exploits and ransomware attacks.”

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Ransomware Education DNS Backups 119

Heimadal Security

SEPTEMBER 15, 2023

While achieving compliance with industry standards is the minimum, it’s not enough to prevent insider threats, supply chain attacks, DDoS, or sophisticated cyberattacks such as double-extortion ransomware, phishing, business email compromise (BEC), info-stealing malware or attacks that leverage the domain name system (DNS).

Healthcare 115

Healthcare DNS DDOS Phishing 115

Security Affairs

JANUARY 20, 2022

The Federal Bureau of Investigation (FBI) officially linked the Diavol ransomware operation to the infamous TrickBot gang. The FBI officially linked the Diavol ransomware operation to the infamous TrickBot gang , the group that is behind the TrickBot banking trojan. “The FBI first learned of Diavol ransomware in October 2021.

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Ransomware Banking Malware Encryption 110

Security Affairs

OCTOBER 29, 2020

FBI and the DHS’s CISA agencies published a joint alert to warn hospitals and healthcare providers of imminent ransomware attacks from Russia. The government agencies receive information about imminent attacks, threat actors are using the TrickBot botnet to deliver the infamous ransomware to the infected systems. Pierluigi Paganini.

Healthcare 143

Healthcare Ransomware Cybercrime Advertising 143

Security Affairs

NOVEMBER 11, 2022

Microsoft linked Prestige ransomware attacks against organizations in Ukraine and Poland to Russia-linked threat actors. Microsoft has identified a new ransomware strain "Prestige" in limited targeted attacks in Ukraine and Poland. The campaign shares victimology with recent operations conducted by Russia-linked threat actors.

Ransomware 85

Ransomware Telecommunications DNS Hacking 85

Security Affairs

NOVEMBER 24, 2022

Researchers warn of an ongoing aggressive Qakbot malware campaign that leads to Black Basta ransomware infections in the US. Experts at the Cybereason Global SOC (GSOC) team have observed a surge in Qakbot infections as part of an ongoing aggressive Qakbot malware campaign that leads to Black Basta ransomware infections in the US.

Malware 87

Malware Ransomware DNS Phishing 87

Security Affairs

NOVEMBER 19, 2020

Managed web hosting provider Managed.com was hit with REvil ransomware that forced it to take down their servers and web hosting systems. Managed web hosting provider Managed.com was hit by a REvil ransomware attack over the weekend that took their servers and web hosting systems offline. “November 17, 2020 – On Nov.16,

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Ransomware DNS Encryption Hacking 114

Cisco Security

DECEMBER 1, 2021

Ransomware is more dangerous than ever before. Ransomware actors are looking to profit from successful attacks as much as possible. These sources of collateral damage explain why ransomware attacks have become so costly, with Bloomberg reporting that some companies end up paying tens of millions of dollars in ransom.

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Ransomware DNS Marketing Engineering 63

Webroot

NOVEMBER 7, 2022

Meanwhile, the global rise in sophisticated ransomware threats and geo-political tensions are escalating cyber threats. Insight from OpenText Security Solutions’ 2022 Global Ransomware SMB Survey sheds light on security priorities, concerns and posture. SMBs’ ransomware concerns are already becoming a reality.

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Ransomware Security Awareness DNS Phishing 83

Malwarebytes

MARCH 11, 2024

JetBrains TeamCity vulnerability abused at scale PetSmart warns customers of credential stuffing attack Predator spyware vendor banned in US ALPHV ransomware gang fakes own death, fools no one Update your iPhones and iPads now: Apple patches security vulnerabilities in iOS and iPadOS Check your DNS! Get a free trial below.

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Spyware DNS Data breaches Ransomware 66

Malwarebytes

JUNE 6, 2022

The post A week in security (May 30 – June 5) appeared first on Malwarebytes Labs.

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DNS Internet Internet Phishing 120

Hot for Security

MAY 26, 2021

The Federal Bureau of Investigation has said in a flash announcement that the Conti ransomware group is responsible for at least 16 attacks targeting US healthcare and first responder networks within the last year. Once Conti actors deploy the ransomware, they may stay in the network and beacon out using Anchor DNS.”.

Healthcare 111

Healthcare Ransomware System Administration DNS 111

SC Magazine

JULY 12, 2021

Last year, the three-week downtime faced by Universal Health Services after a ransomware attack cost the health system $67 million in recovery and lost revenue. Allowlisting is the absolute best protection against ransomware and other malware such as keyloggers, zero-days, and advanced persistent threats,” said Cheng.

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Ransomware Antivirus Software Technology 112

SecureWorld News

MAY 16, 2024

NSA also benefits by receiving DNS data that the CCC is able to run custom analytics over to better understand ways that nation-state actors are targeting the DIB, and then, defend against them. Companies with active DoD contracts are encouraged to learn more about the CCC and enroll in NSA's DIB Cybersecurity services.

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Cybersecurity Small Business DNS Cyber threats 91

Malwarebytes

JANUARY 26, 2023

Move over Lockbit , there's a new ransomware-as-a-service (RaaS) player in town attacking the education sector—and its name is Vice Society. Still, to say ransomware attacks on schools is a Vice Society problem purely is missing the forest for the trees. Get the Ransomware Emergency Kit And their ideal prey?

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Education Ransomware Phishing DNS 91

Thales Cloud Protection & Licensing

JUNE 14, 2022

Ransomware – To Pay, or Not to Pay? And when thinking about criminal innovation, ransomware attacks clearly fall into that definition of “disruptive”, especially for any business on the receiving end of that “innovation”. While ransomware attacks are not new, they remained largely underreported in the mainstream media for many years.

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Ransomware Government Media DNS 71

SC Magazine

FEBRUARY 17, 2021

A new effort from CIS seeks to provide support to hospitals targeted by ransomware. Perhaps no part of industry has been stung by the scourge of ransomware over the past year than hospitals. The post Non-profit pledges $1 million to offer free ransomware protection for private hospitals appeared first on SC Media.

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Ransomware Healthcare Media DNS 103

The Last Watchdog

MARCH 28, 2019

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. DNS resolvers were the early building blocks of the internet: they resolved a domain names, such as spamhaus.org, to a specific IP address. A10 Networks’ report found 6.3

DDOS 263

DDOS IoT DNS Internet 263

Webroot

AUGUST 10, 2022

When was the last time you secretly smiled when ransomware gangs had their bitcoin stolen, their malware servers shut down, or were forced to disband? Indeed, some of the most destructive and costly ransomware groups are now in their third incarnation. PHISHING PREYED ON A VOLATILE MARKET. To learn more, go to: www.brightcloud.com.

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Threat Reports DNS Phishing Malware 83

SecureWorld News

MAY 26, 2021

The FBI is asking for your help after a string of Conti ransomware attacks targeted U.S. FBI wants information on Conti ransomware. Which is why the FBI is asking for organizations to share any information they have that relates to Conti ransomware. Details of Conti ransomware attacks.

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Ransomware DNS Encryption Healthcare 64

CyberSecurity Insiders

MAY 18, 2022

By increasing visibility into DNS traffic, CISOs can detect, block, and respond to incidents more quickly as well as use this data to institute new controls and increase overall resiliency. So why aren’t more organizations taking advantage of protective DNS? The issue likely comes down to awareness.

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DNS Cybersecurity CISO Social Engineering 140