Malwarebytes

JUNE 1, 2022

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. The DNS server, in turn, tells the computer where to go. But which web-based cyberthreats in particular does DNS filtering stop, you ask?

DNS 118

DNS DDOS Phishing Spyware 118

Troy Hunt

SEPTEMBER 17, 2020

I also know that when ANZ updated their app a couple of years ago, they pushed it out by asking people to click on an insecure link that looked just like a phishing attack: Whoa - @ANZ_AU - this is *really* bad form sending an email asking people to download software by clicking an insecure link to a URL shorter then redirecting to an Adobe address.

VPN 357

VPN Phishing DNS Encryption 357

Security Affairs

JULY 4, 2019

The peculiarity of this new piece of malware is the ability to communicate with C2 servers via DNS over HTTPS ( DoH ). The DoH protocol was a new standard proposed in October 2018 and it is currently supported by several publicly available DNS servers. com domain. The second variant. ” reads the analysis published by the experts.

DNS 107

DNS Malware Advertising DDOS 107

Krebs on Security

FEBRUARY 9, 2021

A key concern for enterprises is another critical bug in the DNS server on Windows Server 2008 through 2019 versions that could be used to remotely install software of the attacker’s choice. Chrome downloads security updates automatically, but users still need to restart the browser for the updates to fully take effect.

DNS 339

DNS Backups Software Phishing 339

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 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 Engineering 69

Security Affairs

APRIL 24, 2024

The researchers noticed that the downloaded package file is replaced with a malware-laced one on the wire because the process doesn’t use an HTTPS connection. dlz is downloaded and unpacked by eScan updater The contents of the package contain a malicious DLL (usually called version.dll ) that is sideloaded by eScan.

Antivirus 138

Antivirus Malware DNS Cryptocurrency 138

Security Affairs

AUGUST 19, 2019

It allows users using web browsers to set up user accounts, Apache, DNS, file sharing and much more. You can download the #metasploit module exploits of #0days via this link => [link]. It seems that only offical downloads have been compromised with a backdoor along with the SourceForge repository. Pierluigi Paganini.

Passwords 104

Passwords System Administration Advertising DNS 104

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.

DNS 82

DNS Phishing Small Business Spyware 82

Security Boulevard

APRIL 14, 2022

In April 2022, hackers targeted the customers of eight Malaysian banks by urging them to download malicious apps. The post What is DNS Spoofing and Cache Poisoning? The post What is DNS Spoofing and Cache Poisoning? The apps stole user credentials and forwarded the messages to the malware operators. appeared first on EasyDMARC.

DNS 72

DNS Social Engineering Cybercrime Banking 72

Security Affairs

JULY 30, 2024

The attack chain starts by tricking the recipient into clicking a button that claims to explain how to fix a DNS issue, suggesting that resolving this issue will grant access to a desired file. To fix the error, you need to update the DNS cache manually.” ” reads the report published by Trellix.

Phishing 144

Phishing DNS Social Engineering Engineering 144

Security Affairs

AUGUST 4, 2024

Volexity researchers reported that a China-linked APT group, tracked as StormBamboo (aka Evasive Panda , Daggerfly , and StormCloud), successfully compromised an undisclosed internet service provider (ISP) in order to poison DNS responses for target organizations. The company linked the attacks to StormBamboo APT group.

Malware 145

Malware DNS Firewall Software 145

Security Affairs

AUGUST 20, 2024

The most notable feature of the backdoor is that it relies on DNS tunnelling to communicate with a C2 server. ” The code used by Msupedge for the DNS tunneling tool is based on the publicly available dnscat2 tool. . ” The code used by Msupedge for the DNS tunneling tool is based on the publicly available dnscat2 tool.

DNS 129

DNS Malware Hacking Cybercrime 129

The Hacker News

MARCH 16, 2022

A previously undocumented backdoor has been observed targeting Linux systems with the goal of corralling the machines into a botnet and acting as a conduit for downloading and installing rootkits.

DNS 111

DNS Encryption 111

Krebs on Security

AUGUST 23, 2024

A core part of the way these things find each other involves a Windows feature called “ DNS name devolution ,” a kind of network shorthand that makes it easier to find other computers or servers without having to specify a full, legitimate domain name for those resources. ” Caturegli said setting up an email server record for memrtcc.ad

DNS 310

DNS Internet Internet Authentication 310

Security Affairs

APRIL 16, 2020

Linksys has reset passwords for all its customers’ after learning on ongoing DNS hijacking attacks aimed at delivering malware. Hackers compromise D-Link and Linksys routers and change DNS settings to redirect users to bogus sites proposing a fake COVID-19 information app from the World Health Organization. “For

Passwords 145

Passwords DNS Malware Advertising 145

Joseph Steinberg

DECEMBER 14, 2022

Somehow, however, criminals not only got into the system, but also managed to download a treasure trove of sensitive information. This incident highlights several important points: 1. Even the best security folks sometimes mess up.

Artificial Intelligence 258

Artificial Intelligence DNS Education Cybersecurity 258

Webroot

MARCH 9, 2021

For even more tips from Webroot IT security experts Tyler Moffitt, Kelvin Murray, Grayson Milbourne, George Anderson and Jonathan Barnett, download the complete e-book on hacker personas. DNS (Domain Name System) is especially vulnerable. However, cybercriminals can also use legal DNS traffic surveillance to their advantage.

Hacking 124

Hacking DNS Surveillance Cybercrime 124

Krebs on Security

MARCH 28, 2021

But Watson said they don’t know how many of those systems also ran the secondary download from the rogue Krebsonsecurity domain. I’d been doxed via DNS. Shadowserver found more than 21,000 Exchange Server systems that had the Babydraco backdoor installed. ” What was the subdomain I X’d out of his message?

Hacking 357

Hacking Cybercrime DNS Antivirus 357

Security Affairs

SEPTEMBER 22, 2021

Experts noticed that database updates from Netgear are unsigned and downloaded via Hypertext Transfer Protocol (HTTP), allowing the attacker to carry out a MitM attack on the device. However, database updates from Netgear are unsigned and downloaded via Hypertext Transfer Protocol (HTTP).”

DNS 144

DNS Firmware VPN Risk 144

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 is where Protective DNS comes in. No reliance on match lists, signatures, or patterns.

DNS 64

DNS Phishing Social Engineering Engineering 64

SecureList

JANUARY 22, 2024

Next, it “patched” the downloaded app: tool compared the first 16 bytes of the modified executable with a sequence hardcoded inside Activator and removed them in the case of a match: Checking the first 16 bytes of the executable The app amusingly started working and appeared to have been cracked.

Software 138

Software Computers and Electronics DNS Malware 138

Security Affairs

NOVEMBER 5, 2021

The attack chain starts with a downloader module on a victim’s server in the form of a standalone executable format and a DLL. The DLL downloader is run by the Exchange IIS worker process w3wp.exe. Attackers used a modified EfsPotato exploit to target proxyshell and PetitPotam flaws as an initial downloader.

Ransomware 145

Ransomware Backups Encryption DNS 145

Security Affairs

MAY 1, 2024

The malicious code can also perform DNS and HTTP hijacking within private IP spaces. “What makes this malware family so insidious is the ability to perform HTTP and DNS hijacking for connections to private IP addresses. The bash script also downloads and executes Cuttlefish. ” concludes the report.

Malware 137

Malware DNS Authentication Telecommunications 137

Security Affairs

JUNE 18, 2020

They use DNS tunneling for stealthier C&C communications, and place execution guardrails on the malicious components to hide the malware from security researchers.” The attack chain begins with the deployment of a TCP downloader that fetches the next stage payload.

DNS 131

DNS Advertising Spyware Software 131

SecureList

MARCH 13, 2024

Opening it, an attentive user will immediately notice an amusing inconsistency: the website address contains the line vnote , the title offers a download of Notepad‐‐ (an analog of Notepad++ , also distributed as open-source software), while the image proudly shows Notepad++. ap-hongkong[.]myqcloud[.]com. transferusee[.]com/onl/mac/<md5_hash>

DNS 137

DNS Advertising Engineering Internet 137

Security Affairs

MARCH 16, 2021

Upon successful exploitation, the attackers try to download a malicious shell script, which contains further infection behaviors such as downloading and executing Mirai variants and brute-forcers.” “The attacks are still ongoing at the time of this writing. “The attacks are still ongoing at the time of this writing.

Wireless 142

Wireless IoT DNS VPN 142

Security Affairs

SEPTEMBER 23, 2024

Threat actors exploited the flaw to download or copy malicious components. Upon opening this file, an obfuscated VBScript downloads multiple files from a public cloud service like AWS, including a decoy PDF,NET applications, and a configuration file. The EAGLEDOOR backdoor can communicate with C2 via DNS, HTTP, TCP, and Telegram.

DNS 143

DNS Government Phishing Telecommunications 143

Security Affairs

JANUARY 18, 2024

. “In order to boot from the network, a client system must be able to locate, download, and execute code that sets up, configures, and runs the operating system. ” reads the advisory. ” states CERT/CC. . ” states CERT/CC.

Firmware 138

Firmware DNS Advertising Architecture 138

Security Affairs

JULY 17, 2019

Threat actors used the Extembro DNS- changer Trojan in an adware campaign to prevent users from accessing security-related websites. Security experts at Malwarebytes observed an adware campaign that involved the Extembro DNS- changer Trojan to prevent users from accessing websites of security vendors. ” concludes the analysis.

Adware 96

Adware DNS Malware Advertising 96

Malwarebytes

APRIL 9, 2024

Victims are tricked into downloading and running the Nitrogen malware masquerading as a PuTTY or FileZilla installer. Click here for more information about DNS filtering via our Nebula platform. The malicious ads are displayed as sponsored results on Google’s search engine page and localized to North America.

System Administration 127

System Administration DNS Engineering Social Engineering 127

Security Affairs

MARCH 5, 2020

Researchers have devised another way to carry out an attack, for example, inviting victims to download a fake update from an apparently trusted URL such as mybrowser.microsoft.com. Let’s consider mybrowser.microsoft.com, it might have resolved by the DNS to something like webserver9000.azurewebsites.net. azurewebsites.net.

DNS 140

DNS Phishing Advertising Malware 140

Security Affairs

AUGUST 31, 2022

The phishing emails contain a Microsoft Office attachment that includes an external reference in its metadata which downloads a malicious template file. Upon opening the document, a malicious template file is downloaded and saved on the system. jpg” that appears as an image of the First Deep Field captured by JWST is downloaded.

Malware 98

Malware DNS Antivirus Encryption 98

Security Affairs

DECEMBER 3, 2023

The backdoor is written in.NET and leverages the domain name service (DNS) protocol to establish a covert communication channel with the command and control infrastructure. The experts discovered a domain hard-coded in plain text in the code, it was used to establish the DNS covert channel.

Malware 145

Malware DNS Retail Education 145

Malwarebytes

JULY 14, 2022

Use a DNS filter to stop web-based attacks. Reed also mentions that a lot of adware and PUPs are part of the payload of scam sites that direct you to some kind of installer that you download — and so having some sort of web-based protection is vital. That’s where DNS filtering comes in. Don’t rely on Mac AV – use EDR.

DNS 134

DNS Adware Malware Antivirus 134

Security Affairs

MARCH 26, 2020

Hackers compromiseD -Link and Linksys routers and change DNS settings to redirect users to bogus sites proposing a fake COVID-19 information app from the World Health Organization. Experts from BleepingComputer reported that attackers would change the configured DNS servers to 109 [. ” reported BleepingComputer. 103.82.249.

Malware 118

Malware DNS Advertising Cryptocurrency 118

Security Affairs

SEPTEMBER 26, 2024

In August, Volexity researchers reported that a China-linked APT group, tracked as StormBamboo (aka Evasive Panda , Daggerfly , and StormCloud), successfully compromised an undisclosed internet service provider (ISP) in order to poison DNS responses for target organizations. The company linked the attacks to StormBamboo APT group.

Internet 136

Internet Internet DNS Telecommunications 136