Krebs on Security

AUGUST 23, 2024

At issue is a well-known security and privacy threat called “ namespace collision ,” a situation where domain names intended to be used exclusively on an internal company network end up overlapping with domains that can resolve normally on the open Internet. SSL/TLS certs). ” Caturegli said setting up an email server record for memrtcc.ad

DNS 329

DNS Internet Internet Authentication 329

Krebs on Security

APRIL 13, 2022

” “These could be the kind of vulnerabilities which appeal to ransomware operators as they provide the potential to expose critical data,” said Kevin Breen , director of cyber threat research at Immersive Labs. CVSS scores and are listed as “exploitation more likely by Microsoft.”

DNS 333

DNS Internet Internet Firewall 333

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.

DNS 101

DNS Phishing Ransomware Internet 101

eSecurity Planet

FEBRUARY 4, 2022

Malware is one of the biggest threats businesses face, and with nearly a third of all malware coming through the internet and email, businesses and consumers alike need ways to protect themselves. This guide covers the major categories of internet security suites and includes a few of the top options for each. Antivirus Software.

Internet 144

Internet Internet Software Antivirus 144

Security Affairs

APRIL 7, 2024

The flaw affects multiple D-Link NAS devices, including models DNS-340L, DNS-320L, DNS-327L, and DNS-325. Netsecfish reported that over 92,000 Internet-facing devices are vulnerable. 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

Internet 110

Internet Internet DNS Hacking 110

Malwarebytes

JUNE 6, 2022

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

DNS 143

DNS Internet Internet Phishing 143

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.

Ransomware 145

Ransomware DNS Encryption Backups 145

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 145

Healthcare Ransomware Cybercrime Advertising 145

Security Affairs

FEBRUARY 13, 2025

The group also created the NotPetya ransomware that hit hundreds of companies worldwide in June 2017. Microsoft now spotted the subgroup compromising multiple Internet-facing infrastructures to enable Seashell Blizzard APT group to maintain persistence in the networks of high-value targets and support tailored network operations.

Telecommunications 106

Telecommunications DNS Passwords Hacking 106

Security Affairs

FEBRUARY 23, 2019

A new piece of ransomware called Cr1ptT0r infects embedded systems and network attached storage (NAS) devices exposed online. A new piece of ransomware called Cr1ptT0r was discovered by experts, it infects embedded systems and network attached storage (NAS) devices exposed online. No extension added to locked files.

Ransomware 111

Ransomware DNS Firmware Encryption 111

Security Boulevard

AUGUST 7, 2024

HYAS Protect protective DNS uses advanced data analytics to proactively block cyber threats, a feature unavailable in legacy systems relying on static DNS filtering. AV-TEST , one of the cybersecurity industry’s most trusted evaluators, rates HYAS as the most effective protective DNS solution on the market. What Is HYAS Protect?

DNS 64

DNS Government Cyber threats IoT 64

Security Boulevard

JULY 9, 2024

Operational resiliency necessitates intelligence, visibility, and confidence: the three foundational pillars of protective DNS (PDNS). This makes malware command-and-control, phishing attacks, DNS tunneling and a number of other attacks significantly less effective. But Wait, What Is Protective DNS?

DNS 64

DNS Cyber threats Cyber Attacks Phishing 64

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

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. Organizations interested in signing up for the services can do so through the Center for Internet Security’s website.

Ransomware 103

Ransomware Healthcare Media DNS 103

SecureList

DECEMBER 18, 2020

For instance, before making the first internet connection to its C2s, the Sunburst malware lies dormant for a long period, of up to two weeks, which prevents an easy detection of this behavior in sandboxes. In the initial phases, the Sunburst malware talks to the C&C server by sending encoded DNS requests. avsvmcloud[.]com”

DNS 76

DNS Telecommunications Malware Encryption 76

Penetration Testing

JUNE 9, 2025

The most notable discovery in SentinelLABS’ investigation was that threat actors carried out reconnaissance against SentinelOne’s Internet-facing servers in October 2024, and even compromised a third-party IT logistics firm responsible for handling employee hardware.

Penetration Testing 93

Penetration Testing Advertising Cybersecurity DNS 93

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. This staggering figure represents more than 59 percent of the losses from the top five most costly internet crimes worldwide.

DNS 64

DNS Phishing Social Engineering Engineering 64

Malwarebytes

JULY 19, 2021

Last week on Malwarebytes Labs: DNS-over-HTTPS takes another small step towards global domination Nope, that isn’t Elon Musk , and he isn’t offering a free Topmist Dust watch either Four in-the-wild exploits, 13 critical patches headline bumper Patch Tuesday Is crypto’s criminal rollercoaster approaching a terminal dip?

DNS 112

DNS VPN Retail Data breaches 112

Malwarebytes

DECEMBER 1, 2023

For a “normal” connection to a website, a Domian Name System (DNS) finds the IP address for the requested domain name. As I explained in the blog DNS hijacks: what to look for , DNS is the phonebook of the internet to the effect that the input is a name and the output is a number.

DNS 124

DNS Internet Internet Encryption 124

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.

DNS 140

DNS Cybersecurity CISO Social Engineering 140

Security Affairs

SEPTEMBER 17, 2018

Palo Alto Network researchers discovered a new malware, tracked as XBash, that combines features from ransomware, cryptocurrency miners, botnets, and worms. The malicious code combines features from different families of malware such as ransomware, cryptocurrency miners, botnets, and worms. ” continues the report.

Cryptocurrency 111

Cryptocurrency Malware Ransomware Cybercrime 111

SecureList

DECEMBER 19, 2024

The affected system was a Windows server exposed to the internet, with only two ports open. Open ports exposed to the Internet Identification and containment In October 2024, telemetry alerts from our MDR technology revealed attempts by an internal IP address to access registry hives via an admin account on a customer’s Windows server.

Internet 107

Internet Internet Passwords Accountability 107

Krebs on Security

AUGUST 25, 2018

Helpfully, this user pasted a great deal of information from the spam email message, including the domain name from which it was sent ( williehowell-dot-com ) and the Internet address of the server that sent the message (46.161.42.91). In early June 2018, uscourtsgov-dot-com was associated with a Sigma ransomware scam delivered via spam.

Scams 170

Scams Internet Internet Passwords 170

Security Affairs

AUGUST 22, 2021

million customers Adobe addresses two critical vulnerabilities in Photoshop Hamburg’s data protection agency (DPA) states that using Zoom violates GDPR Kalay cloud platform flaw exposes millions of IoT devices to hack Fortinet FortiWeb OS Command Injection allows takeover servers remotely 1.9

Data breaches 107

Data breaches Mobile Ransomware Hacking 107

Malwarebytes

JULY 26, 2022

It’s no secret that ransomware is one of the most pressing cyber threats of our day. What worse, ransomware gangs have increased their attacks on a range of vulnerable industries, with disruptions to business operations, million-dollar ransom demands, data exfiltration, and extortion. Part 2: Pinpointing the ransomware.

Encryption 89

Encryption Ransomware Backups Firewall 89

eSecurity Planet

FEBRUARY 19, 2024

Akira ransomware vulnerabilities have also surfaced in older Cisco products, and SolarWinds patched some remote code execution flaws in its Access Rights Manager product. Among the vulnerabilities is CVE-2024-21412 , an Internet Shortcut Files flaw that allows an unauthenticated attacker to send a malicious file to a user.

VPN 113

VPN DNS Ransomware Software 113

Security Affairs

AUGUST 29, 2023

Sophos X-Ops is currently tracking a campaign by threat actors targeting unpatched Citrix NetScaler systems exposed to the internet. The attackers attempted to verify outbound network connectivity with a ping command and executed host commands for a subnet-wide DNS lookup. Network-segmentation controls blocked this activity too.

VPN 128

VPN Ransomware DNS Malware 128

Malwarebytes

APRIL 25, 2023

From there, further research identified a DNS signature not related to Pupy components. Infoblox claims that this unique DNS signature for Decoy Dog “ matches less than 0.0000027% of the 370 million active domains on the internet ” Pupy itself has been seen in numerous nation state attacks and other serious compromises.

DNS 88

DNS Mobile Malware Internet 88

Security Affairs

JULY 28, 2024

Ukraine’s cyber operation shut down the ATM services of major Russian banks A bug in Chrome Password Manager caused user credentials to disappear BIND updates fix four high-severity DoS bugs in the DNS software suite Terrorist Activity is Accelerating in Cyberspace – Risk Precursor to Summer Olympics and Elections Progress Software fixed (..)

Spyware 125

Spyware Data breaches Cybercrime Banking 125

Security Affairs

JANUARY 25, 2021

The DreamBus bot has a worm-like behavior that is highly effective, it is able to spread to systems that are not directly exposed to the internet by scanning private RFC 1918 subnet ranges for vulnerable systems. Ransomware, data theft). The malware has a modular structure and its modules have a low detection rate.

Cryptocurrency 145

Cryptocurrency Malware DNS Passwords 145

eSecurity Planet

MAY 2, 2024

Fortunately, vendor surveys identify five key cybersecurity threats to watch for in 2024: compromised credentials, attacks on infrastructure, organized and advanced adversaries, ransomware, and uncontrolled devices. 50,000 DDoS attacks on public domain name service (DNS) resolvers. 20,551 gambling industry attacks.

Cybersecurity 121

Cybersecurity DDOS Penetration Testing Passwords 121

Security Boulevard

JUNE 20, 2024

Financial organizations and their customers and clients feel the fallout of major ransomware and phishing campaigns more than ever, and there’s often more at stake. Luckily, even the most sophisticated ransomware attacks and phishing campaigns are not invulnerable. Using passive DNS is an essential tool for tracking bad actors.

Cyber Attacks 69

Cyber Attacks DNS Phishing Cyber threats 69

Security Affairs

AUGUST 20, 2021

“By infecting routers, they can perform man-in-the-middle (MITM) attacks—via HTTP hijacking and DNS spoofing—to compromise endpoints and deploy ransomware or cause safety incidents in OT facilities. .” state researchers at Microsoft Security Threat Intelligence Center and Section 52 at Azure Defender for IoT.

IoT 109

IoT DNS Manufacturing Firmware 109

eSecurity Planet

NOVEMBER 3, 2022

We’ll get into specifics below, but here are five steps to prevent ransomware attacks, along with links to jump ahead: Harden against attacks : Patch, update, and change settings to harden resources against attacks. Internet Control Message Protocol (ICMP) or ping requests. For more information, see How to Prevent DNS Attacks.

DDOS 125

DDOS Firewall DNS Architecture 125

eSecurity Planet

JANUARY 14, 2022

And DDoS attackers have adopted a tactic from ransomware groups and are seeking payment from victims and potential victims. Meanwhile, the 2021 State of the Data Center Industry research report placed DDoS behind ransomware as the threats that most worry the enterprise. Protects websites, networks, DNS and individual IPs.

DDOS 127

DDOS DNS Firewall Media 127

Security Affairs

MARCH 4, 2019

Necurs botnet is currently the second largest spam botnet , it has been active since at least 2012 and was involved in massive campaigns spreading malware such as the Locky ransomware , the Scarab ransomware , and the Dridex banking Trojan. ” concludes the post.

DNS 106

DNS Banking Advertising Ransomware 106

Security Affairs

SEPTEMBER 8, 2019

JSWorm: The 4th Version of the Infamous Ransomware. Some Zyxel devices can be hacked via DNS requests. New Bedford city infected with Ryuk ransomware, but did not pay $5.3M Thousands of servers infected with the Lilocked Ransomware. Experts devised advanced SMS phishing attacks against modern Android-based phones.

IoT 100

IoT Data breaches Advertising DNS 100