Krebs on Security

MARCH 9, 2021

Ten of these earned Microsoft’s “critical” rating, meaning they can be exploited by malware or miscreants with little or no help from users. Top of the heap this month (apart from the ongoing, global Exchange Server mass-compromise ) is a patch for an Internet Explorer bug that is seeing active exploitation.

DNS 348

DNS Internet Internet Software 348

eSecurity Planet

JULY 25, 2022

The domain name system (DNS) is basically a directory of addresses for the internet. Your browser uses DNS to find the IP for a specific service. For example, when you enter esecurityplanet.com, the browser queries a DNS service to reach the matching servers, but it’s also used when you send an email.

DNS 137

DNS Encryption Penetration Testing Architecture 137

Krebs on Security

AUGUST 2, 2022

With the recent demise of several popular “proxy” services that let cybercriminals route their malicious traffic through hacked PCs, there is now something of a supply chain crisis gripping the underbelly of the Internet. com , a malware-based proxy network that has been in existence since at least 2010.

Malware 304

Malware Cybercrime Internet Internet 304

Krebs on Security

FEBRUARY 4, 2019

But several more recent malware spam campaigns suggest GoDaddy’s fix hasn’t gone far enough, and that scammers likely still have a sizable arsenal of hijacked GoDaddy domains at their disposal. The domains documented by MyOnlineSecurity all had their DNS records altered between Jan. 31 and Feb. Image: Farsight Security.

DNS 264

DNS Ransomware Accountability Internet 264

Krebs on Security

JANUARY 22, 2019

Experts at Cisco Talos and other security firms quickly drew parallels between the two mass spam campaigns, pointing to a significant overlap in Russia-based Internet addresses used to send the junk emails. When it was initially set up, it took advantage of two managed DNS servers assigned to it by GoDaddy — ns17.domaincontrol.com,

DNS 263

DNS Internet Internet Computers and Electronics 263

Bleeping Computer

APRIL 23, 2023

A new enterprise-targeting malware toolkit called 'Decoy Dog' has been discovered after inspecting anomalous DNS traffic that is distinctive from regular internet activity. [.]

DNS 114

DNS Malware Internet Internet 114

Security Affairs

AUGUST 4, 2024

A China-linked APT, tracked as StormBamboo, compromised an internet service provider (ISP) to poison software update mechanisms with malware. The threat actors targeted insecure software update mechanisms to install malware on macOS and Windows victim machines. The company linked the attacks to StormBamboo APT group.

Malware 144

Malware DNS Firewall Software 144

Security Affairs

NOVEMBER 10, 2024

internet service providers in recent months as part of a cyber espionage campaign code-named Salt Typhoon. internet-service providers in recent months in pursuit of sensitive information, according to people familiar with the matter.” China-linked threat actors have breached several U.S. Wall Street Journal reported.

Hacking 130

Hacking Internet Internet Government 130

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. 48 percent found information-stealing malware activity.

DNS 143

DNS Phishing Ransomware Internet 143

Krebs on Security

JUNE 21, 2023

If you operate a cybercrime business that relies on disseminating malicious software, you probably also spend a good deal of time trying to disguise or “crypt” your malware so that it appears benign to antivirus and security products. This story explores the history and identity behind Cryptor[.]biz WHO RUNS CRYPTOR[.]BIZ?

Malware 261

Malware Antivirus Cybercrime Hacking 261

eSecurity Planet

DECEMBER 8, 2023

Domain name service (DNS) attacks threaten every internet connection because they can deny, intercept, and hijack connections. With the internet playing an increasing role in business, securing DNS plays a critical role in both operations and security. Everything You Need to Know.

DNS 115

DNS DDOS Firewall Architecture 115

Security Affairs

MAY 1, 2024

A new malware named Cuttlefish targets enterprise-grade and small office/home office (SOHO) routers to harvest public cloud authentication data. The malware creates a proxy or VPN tunnel on the compromised router to exfiltrate data, and then uses stolen credentials to access targeted resources.

Malware 130

Malware DNS Authentication Telecommunications 130

eSecurity Planet

NOVEMBER 10, 2023

DNS security protects the domain name system (DNS) from attackers seeking to reroute traffic to malicious sites. Since a majority of business IT traffic now accesses or passes through the internet, DNS plays an increasingly important — and vulnerable — role.

DNS 110

DNS DDOS Encryption Authentication 110

Security Affairs

SEPTEMBER 26, 2024

internet service providers (ISPs) as part of a cyber espionage campaign code-named Salt Typhoon. internet service providers in recent months as part of a cyber espionage campaign code-named Salt Typhoon. internet-service providers in recent months in pursuit of sensitive information, according to people familiar with the matter.”

Internet 129

Internet Internet DNS Telecommunications 129

Krebs on Security

JULY 13, 2021

Thirteen of the security bugs quashed in this month’s release earned Microsoft’s most-dire “critical” rating, meaning they can be exploited by malware or miscreants to seize remote control over a vulnerable system without any help from users. out of a possible 10.

DNS 324

DNS Engineering Internet Internet 324

Security Affairs

MAY 1, 2021

The Internet Systems Consortium (ISC) released updates for the BIND DNS software to patch several denial-of-service (DoS) and potential RCE flaws. The post Flaws in the BIND software expose DNS servers to attacks appeared first on Security Affairs. Follow me on Twitter: @securityaffairs and Facebook. Pierluigi Paganini.

DNS 140

DNS Software Internet Internet 140

Krebs on Security

JULY 14, 2020

Top of the heap this month in terms of outright scariness is CVE-2020-1350 , which concerns a remotely exploitable bug in more or less all versions of Windows Server that attackers could use to install malicious software simply by sending a specially crafted DNS request.

DNS 319

DNS Backups Software System Administration 319

Tech Republic Security

AUGUST 9, 2024

Read more about a China-aligned cyberespionage threat actor dubbed StormBamboo, also known as Evasive Panda, which compromised an Internet Service Provider and infected targets with malware.

Malware 152

Malware Internet Internet DNS 152

Threatpost

DECEMBER 2, 2020

Peter Lowe with DNSFilter discusses the science behind domain name system (DNS) filtering and how this method is effective in blocking out phishing and malware.

DNS 94

DNS Phishing Malware Internet 94

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.

Internet 144

Internet Internet Software Antivirus 144

Security Affairs

SEPTEMBER 23, 2020

Qurium analyzes the blocking implemented by four different operators in Belarus Belarus operators use their own infrastructure to implement the blocking Block techniques include transparent web proxies, injection of HTTP responses, stateless and stateful SSL DPI and fake DNS responses. Qurium forensics report: Internet blocking in Belarus.

Internet 131

Internet Internet DNS Advertising 131

The Last Watchdog

JUNE 1, 2021

The attackers can also use it for installing malware programs on the victim’s system. The Pharming attacks are carried out by modifying the settings on the victim’s system or compromising the DNS server. In this method of manipulating DNS, the attackers infiltrate the victim’s device and change the local host file.

DNS 214

DNS Phishing Social Engineering Cyber Attacks 214

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. “BlackLotus can bypass functionality called secure boot, which is designed to block malware from being able to load when booting up.

DNS 289

DNS Social Engineering Malware Media 289

Krebs on Security

APRIL 13, 2022

Nine of the updates pushed this week address problems Microsoft considers “critical,” meaning the flaws they fix could be abused by malware or malcontents to seize total, remote access to a Windows system without any help from the user. . “Go patch your systems before that situation changes.”. 10 being the worst).

DNS 308

DNS Internet Internet Firewall 308

Krebs on Security

MARCH 28, 2021

New data suggests someone has compromised more than 21,000 Microsoft Exchange Server email systems worldwide and infected them with malware that invokes both KrebsOnSecurity and Yours Truly by name. I’d been doxed via DNS. Let’s just get this out of the way right now: It wasn’t me. krebsonsecurity[.]top

Hacking 363

Hacking Cybercrime DNS Internet 363

Security Boulevard

MAY 20, 2022

What Is DNS Spoofing and How Is It Prevented? What Is the DNS and DNS Server? . To fully understand DNS spoofing, it’s important to understand DNS and DNS servers. The DNS “domain name system” is then what translates the domain name into the right IP address. What Is DNS Spoofing? .

DNS 98

DNS Cyber Attacks Encryption Risk 98

Security Affairs

FEBRUARY 13, 2025

On September 2022, the Sandworm group was observed impersonating telecommunication providers to target Ukrainian entities with malware. Since late 2021, the subgroup has targeted networks by modifying Outlook Web Access (OWA) sign-in pages and DNS configurations.

Telecommunications 107

Telecommunications DNS Passwords Hacking 107

Malwarebytes

MAY 25, 2022

Based on a case study in 2015 , Akamai strengthened the theory that the malware may be of Asian origin based on its targets. Microsoft said that XorDDoS continues to home on Linux-based systems, demonstrating a significant pivot in malware targets. Such powerful attacks are no longer conducted just to disrupt.

Malware 142

Malware IoT DDOS DNS 142

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. 48 percent found information-stealing malware activity.

DNS 95

DNS Phishing Ransomware Internet 95

Security Affairs

OCTOBER 1, 2018

Security experts from Qihoo 360 NetLab spotted GhostDNS, a malware that already infected over 100K+ devices and targets 70+ different types of routers. Security experts from Qihoo 360 NetLab have uncovered an ongoing hacking campaign that leverages the GhostDNS malware. ” reads the analysis published by the experts.

DNS 107

DNS Malware Firmware Phishing 107

Security Affairs

FEBRUARY 5, 2021

The TeamTNT hacker group has been employing a new piece of malware, dubbed Hildegard, to target Kubernetes installs. The hacking group TeamTNT has been employing a new piece of malware, dubbed Hildegard, in a series of attacks targeting Kubernetes systems. The malware deploys the XMRig mining tool to mine Monero cryptocurrency.

Malware 120

Malware DNS Cryptocurrency Internet 120

Security Boulevard

JUNE 19, 2024

DNS enables the easy navigation from website to website as you currently know it. Many DNS resolvers - such as your internet service provider's (ISP) - do not encrypt queries and may log data and metadata surrounding your queries. This post aims to explore how and why - and doesn't leave out the limitations of encrypted DNS.

DNS 69

DNS Encryption Firmware Internet 69

Security Affairs

AUGUST 10, 2020

An attacker could use $300 worth of off-the-shelf equipment to eavesdrop and intercept signals from satellite internet communications. The academic researcher James Pavur, speaking at Black Hat 2020 hacking conference , explained that satellite internet communications are susceptible to eavesdropping and signal interception.

Internet 134

Internet Internet Advertising Encryption 134

Security Affairs

MAY 1, 2023

Infoblox researchers discovered a new sophisticated malware toolkit, dubbed Decoy Dog, targeting enterprise networks. While analyzing billions of DNS records, Infoblox researchers discovered a sophisticated malware toolkit, dubbed Decoy Dog, that was employed in attacks aimed at enterprise networks. ” concludes the report.

Malware 98

Malware DNS Education Media 98

Malwarebytes

JUNE 30, 2022

The threat actor can then use DNS hijacking and HTTP hijacking to cause the connected devices to install other malware. ZuoRAT looks like a heavily modified version of the Mirai malware. DNS hijacking. The post ZuoRAT is a sophisticated malware that mainly targets SOHO routers appeared first on Malwarebytes Labs.

Malware 110

Malware DNS Small Business Firmware 110

Daniel Miessler

MAY 8, 2020

A lot of people are thinking about the security of their home network right now, and as one of the project leaders on the OWASP Internet of Things Security Project , I wanted to provide three levels of security you can do at home. MalwareBytes has somehow won the battle of the best consumer anti-malware offering. or 1.1.1.3

Passwords 255

Passwords DNS Accountability IoT 255

Security Affairs

JUNE 22, 2021

Experts defined DirtyMoe as a complex malware that has been designed as a modular system. The DirtyMoe rootkit was delivered via malspam campaigns or served by malicious sites hosting the PurpleFox exploit kit that triggers vulnerabilities in Internet Explorer, such as the CVE-2020-0674 scripting engine memory corruption vulnerability.

DNS 145

DNS Internet Internet Malware 145