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 86

DNS DDOS Phishing Spyware 86

Security Boulevard

APRIL 14, 2022

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

DNS 70

DNS Social Engineering Cybercrime Banking 70

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

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. The second variant. ” reads the analysis published by the experts.

DNS 81

DNS Malware Advertising DDOS 81

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 212

Malware Antivirus Cybercrime Hacking 212

Security Affairs

AUGUST 31, 2022

A malware campaign tracked as GO#WEBBFUSCATOR used an image taken from NASA’s James Webb Space Telescope (JWST) as a lure. Securonix Threat researchers uncovered a persistent Golang-based malware campaign tracked as GO#WEBBFUSCATOR that leveraged the deep field image taken from the James Webb telescope. Pierluigi Paganini.

Malware 85

Malware DNS Antivirus Encryption 85

Malwarebytes

APRIL 9, 2024

Victims are tricked into downloading and running the Nitrogen malware masquerading as a PuTTY or FileZilla installer. Online ads from search engine result pages are increasingly being used to deliver malware to corporate users. Click here for more information about DNS filtering via our Nebula platform.

System Administration 108

System Administration DNS Engineering Social Engineering 108

SecureList

DECEMBER 18, 2020

At the moment, we identified approximately ~100 customers who downloaded the trojanized package containing the Sunburst backdoor. 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.

DNS 74

DNS Telecommunications Malware Encryption 74

Malwarebytes

APRIL 4, 2024

The website looks incredibly convincing, and victims will be tricked into downloading the app from there. Unlike the legitimate NordVPN that goes through a sign up process, here you can directly download the installer from Dropbox. The file contains both an installer for NordVPN and a malware payload. 216 on port 15647.

VPN 104

VPN Advertising DNS Malware 104

Malwarebytes

JUNE 30, 2022

The vulnerability or chain of vulnerabilities allow the threat actor to download a binary, then execute it on the host. 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.

DNS 98

DNS Malware Small Business Firmware 98

Security Affairs

FEBRUARY 3, 2023

The former is a VBScript used to download next-stage VBScript from a remote server. Upon opening the.LNK file, it uses the System Binary Proxy Execution technique through the execution of Windows-native binary (designed to execute Microsoft HTML Application (HTA) files (mshta.exe)) to download a file via the URL hxxps://secureurl[.]shop/09.01_otck/quicker[.]rtf.

Malware 91

Malware Spyware DNS Government 91

Security Affairs

JANUARY 8, 2022

Researchers warn of new campaigns distributing a new improved version of the FluBot malware posing as Flash Player. Researchers from F5 security are warning of a new enhanced version of the FluBot Android malware that that spread posed as Flash Player. The victim downloads and opens the malicious app that installs FluBot.

Malware 107

Malware DNS Banking Hacking 107

Malwarebytes

MARCH 12, 2024

One malware family we have been tracking on this blog is FakeBat. For weeks, the malvertiser helping to distribute this malware was abusing the same URL shortener services which may have made the attack somewhat predictable. Each downloaded file is an MSIX installer signed with a valid digital certificate (Consoneai Ltd).

DNS 117

DNS Malware Software Hacking 117

SecureList

JANUARY 22, 2024

We recently caught sight of a new, hitherto unknown, macOS malware family that was piggybacking on cracked software. A downloader A completed “patching” kicked off the main payload, with the sample reaching out to its C2 for an encrypted script. org every 30 seconds and tried to download and execute the following script.

Software 102

Software DNS Computers and Electronics Malware 102

Security Affairs

SEPTEMBER 21, 2022

Russia-linked APT group Sandworm has been observed impersonating telecommunication providers to target Ukrainian entities with malware. Russia-linked cyberespionage group Sandworm has been observed impersonating telecommunication providers to target Ukrainian entities with malware. ” reads the report published by Recorded Future.

Malware 85

Malware Telecommunications DNS Hacking 85

Malwarebytes

MARCH 22, 2024

Malware loaders (also known as droppers or downloaders) are a popular commodity in the criminal underground. not sandboxes) before pushing other malware. One of the big differences though is the download link. The malicious payload is downloaded via a 2 step redirection chain which is something we don’t always see.

Malware 86

Malware System Administration DNS 86

Security Affairs

JANUARY 14, 2021

Malware researchers from ESET uncovered an ongoing surveillance campaign, dubbed Operation Spalax , against Colombian entities exclusively. The attacks start with phishing messages that lead to the download of RAR archives hosted on OneDrive or MediaFire containing a malicious executable. ” continues the report.

Malware 111

Malware Surveillance Phishing Government 111

Security Boulevard

JUNE 21, 2023

Android TV: Beware Pre-Installed Malware However because Android TV doesn't get licensed for those streaming devices, they also don't get checked for bad things by Google, such as pre-installed malware. A few models of popular streaming devices have been found to contain malware straight from the factory.

Firmware 104

Firmware DNS Malware Manufacturing 104

SecureList

DECEMBER 14, 2023

During an incident response performed by Kaspersky’s Global Emergency Response Team ( GERT ) and GReAT, we uncovered a novel multiplatform threat named “NKAbuse” The malware utilizes NKN technology for data exchange between peers, functioning as a potent implant, and equipped with both flooder and backdoor capabilities.

Malware 105

Malware Architecture DNS DDOS 105

Security Boulevard

JUNE 24, 2021

This sample was interesting in that it tunnels information over DNS as its preferred command and control (C2) mechanism. We downloaded two PCAPs from the malware samples.Read more ». The post Corelight Sensors detect the ChaChi RAT appeared first on Security Boulevard.

DNS 87

DNS Malware 87

Security Affairs

MARCH 26, 2020

The number of Coronavirus-themed attacks continues to increase, crooks hijack D-Link and Linksys routers to redirect users to sites spreading COVID19-themed malware. Crooks continue to launch Coronavirus-themed attacks , experts observed hackers hijacking D-Link and Linksys routers to redirect users to COVID19-themed sites spreading malware.

Malware 80

Malware DNS Advertising Cryptocurrency 80

SecureList

JUNE 5, 2023

Satacom downloader, also known as LegionLoader, is a renowned malware family that emerged in 2019. It is known to use the technique of querying DNS servers to obtain the base64-encoded URL in order to receive the next stage of another malware family currently distributed by Satacom.

Cryptocurrency 78

Cryptocurrency DNS Malware Encryption 78

SecureList

DECEMBER 6, 2023

Illegally distributed software historically has served as a way to sneak malware onto victims’ devices. Contents of the malware script A look at the script code reveals that the /Contents/Resources/ directory contains two suspicious files in addition to the cracked application resources: WindowServer and p.plist. akamaized[.]ca:6101/strvn

Software 85

Software DNS Malware Mobile 85

SecureList

OCTOBER 25, 2023

Introduction It’s just another cryptocurrency miner… Nobody would even suspect the mining malware was merely a mask, masquerading behind an intricate modular framework that supports both Linux and Windows. This malware employed a custom EternalBlue SMBv1 exploit to infiltrate its victims’ systems.

Malware 107

Malware DNS Encryption Cryptocurrency 107

Malwarebytes

JULY 14, 2022

Securing that many endpoints can get really complex, really fast, especially when you consider that the common wisdom that Macs don’t get malware simply isn’t true: in fact, the number of malware detections on Mac jumped 200% year-on-year in 2021. And it’s not just malware you have to worry about with your Mac endpoints.

DNS 106

DNS Adware Malware Antivirus 106

Security Affairs

FEBRUARY 1, 2019

Security experts at Cybaze – Yoroi ZLab have analyzed a new sample of the AdvisorsBot malware, a downloader that was first spotted in August 2018. As usual, the malware looks like a legitimate e-mail attachment, named as “invoice.doc”. Figure 3 – Piece of VBS script that starts malware infection. DLL Analysis.

Malware 86

Malware DNS Social Engineering Advertising 86

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 94

DNS Advertising Engineering Internet 94

Security Affairs

JULY 15, 2020

Security researchers discovered another malware family delivered through tax software that some businesses operating in China are required to install. Security researchers at Trustwave have discovered another malware family delivered through tax software that Chinese banks require companies operating in the country to install.

Software 83

Software Malware Banking Advertising 83

Security Affairs

APRIL 16, 2020

Linksys has reset passwords for all its customers’ after learning on ongoing DNS hijacking attacks aimed at delivering malware. Crooks continue to launch Coronavirus-themed attacks , in the last weeks, experts observed hackers hijacking D-Link and Linksys routers to redirect users to COVID19-themed sites spreading malware.

Passwords 119

Passwords DNS Malware Advertising 119

Malwarebytes

FEBRUARY 28, 2024

Throughout 2023, we observed a continuation in malvertising chains related to software downloads. One other malware family we have seen here and there is Rhadamanthys. In this blog post, we detail the latest distribution chain related to this malware. There are two download buttons, one for Mac and the other for Windows.

Advertising 79

Advertising Malware Software DNS 79

Security Affairs

FEBRUARY 12, 2024

While they can’t directly read your password, they can still download malware or gather enough information to steal your identity. DNS Spoofing DNS (Domain Name System) is like the internet’s phone book, translating domain names into IP addresses.

DNS 126

DNS VPN Encryption Passwords 126

Malwarebytes

JANUARY 22, 2024

The group uses social engineering techniques to persuade their targets to open documents or download malware. This backdoor is custom malware, likely developed by or for Coldriver, called Spica. It is mainly in use by security researchers to classify malware. These targets are approached in spear phishing attacks.

Social Engineering 100

Social Engineering Government Media DNS 100

Security Affairs

JANUARY 13, 2022

The malware campaign was spotted by Cisco Talos in October 2021, most of the victims were located in the United States, Italy and Singapore. The attackers used complex obfuscation techniques in the downloader script. ” reads the analysis published by Talos.

DNS 113

DNS Malware Cybercrime Ransomware 113

Security Affairs

NOVEMBER 5, 2021

Over the past months, other ransomware gangs, including Conti and Lockfile , exploited ProxyShell flaws to deliver their malware. 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.

Ransomware 128

Ransomware Backups Encryption DNS 128

SecureList

MARCH 10, 2021

Back then, cybercriminals distributed malware under the guise of the Malwarebytes antivirus installer. In the latest campaign, we have seen several apps impersonated by the malware: the ad blockers AdShield and Netshield, as well as the OpenDNS service. Updater.exe downloads from the site transmissionbt[.]org Technical details.

DNS 142

DNS Antivirus Malware Encryption 142

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 125

Wireless IoT DNS VPN 125

Krebs on Security

FEBRUARY 9, 2021

Nine of the 56 vulnerabilities earned Microsoft’s most urgent “critical” rating, meaning malware or miscreants could use them to seize remote control over unpatched systems with little or no help from users. Keep in mind that Windows 10 by default will automatically download and install updates on its own schedule.

DNS 295

DNS Backups Software Phishing 295