Security Affairs

JANUARY 16, 2025

Researchers discovered a 13,000-device MikroTik botnet exploiting DNS flaws to spoof 20,000 domains and deliver malware. Infoblox researchers discovered a botnet of 13,000 MikroTik devices that exploits DNS misconfigurations to bypass email protections, spoof approximately 20,000 domains, and deliver malware.

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DNS Malware Firmware Authentication 97

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. ” states the analysis. ” states the analysis.

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DNS Malware Advertising DDOS 107

Security Affairs

APRIL 24, 2020

The Hoaxcalls IoT botnet expanded the list of targeted devices and has added new distributed denial of service (DDoS) capabilities. The botnet was initially designed to launch DDoS attacks using UDP, DNS and HEX floods. Experts also noticed that the new variant implements 16 new DDoS capabilities. Pierluigi Paganini.

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CyberSecurity Insiders

APRIL 30, 2021

Is your organization prepared to mitigate Distributed Denial of Service (DDoS) attacks against mission-critical cloud-based applications? A DDoS attack is a cyber attack that uses bots to flood the targeted server or application with junk traffic, exhausting its resources and disrupting service for real human users. Source: Testbytes.

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Security Affairs

OCTOBER 16, 2020

The Google Cloud team revealed that in September 2017 it has mitigated DDoS attack that reached 2.54 Tbps, the largest DDoS attack of ever. The Google Cloud team revealed that back in September 2017 it has mitigated a powerful DDoS attack that clocked at 2.54 Tbps DDoS attack mitigated by Amazon’s AWS in February.

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DDOS Advertising DNS Engineering 127

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?

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DNS DDOS Phishing Spyware 101

SecureList

FEBRUARY 16, 2021

The DTLS (Datagram Transport Layer Security) protocol is used to establish secure connections over UDP, through which most DNS queries, as well as audio and video traffic, are sent. In December, Canada’s Laurentian University reported a DDoS attack. In early October, a DDoS attack was reported by the PUBG Mobile team.

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DDOS Cryptocurrency Marketing Internet 145

Security Affairs

FEBRUARY 4, 2021

Netlab researchers spotted a new Android malware, dubbed Matryosh , that is infecting devices to recruit them in a distributed denial-of-service (DDoS) botnet. The main purpose of the Android botnet is to carry out DDoS attacks. The ADB could be abused by malware to target Android phones through port 5555.

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DDOS DNS Antivirus Malware 141

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.

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eSecurity Planet

JANUARY 28, 2022

Microsoft in November fended off a massive distributed denial-of-service (DDoS) attack in its Azure cloud that officials said was the largest ever recorded, the latest in a wave of record attacks that washed over the IT industry in the second half of 2021. Also read: How to Stop DDoS Attacks: 6 Tips for Fighting DDoS Attacks.

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DDOS IoT Engineering Internet 136

Security Affairs

DECEMBER 27, 2024

The script uses various methods like “wget,” “ftpget,” “curl,” and “tftp” to download the malware. It first terminates processes with the same file extension as “FICORA” and then downloads and executes the malware targeting multiple Linux architectures.

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Architecture Malware DNS DDOS 70

Security Affairs

JULY 5, 2024

Researchers uncovered a new Golang-based botnet called Zergeca that can carry out distributed denial-of-service (DDoS) attacks. Researchers at the QiAnXin XLab team uncovered a new Golang-based botnet called Zergeca that can carry out distributed denial-of-service (DDoS) attacks.

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DDOS DNS Encryption Malware 139

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

Krebs on Security

OCTOBER 31, 2023

The top-level domain for the United States — US — is home to thousands of newly-registered domains tied to a malicious link shortening service that facilitates malware and phishing scams, new research suggests. domains were the worst in the world for spam, botnet (attack infrastructure for DDOS etc.) US phishing domains.

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Phishing Telecommunications Malware Scams 324

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 116

Healthcare DNS DDOS Phishing 116

Security Affairs

DECEMBER 18, 2019

Security experts recently found notable malware activity affecting devices running Linux that is associated with the Momentum Botnet. Malware researchers from Trend Micro recently observed notable malware activity affecting devices running Linux that is associated with the Momentum Botnet. ” concludes the analysis.

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Malware DDOS Advertising DNS 99

Security Affairs

JUNE 22, 2021

Experts defined DirtyMoe as a complex malware that has been designed as a modular system. The Windows botnet has been active since late 2017, it was mainly used to mine cryptocurrency, but it was also involved in DDoS attacks in 2018. “Both PurpleFox and DirtyMoe are still active malware and gaining strength.”

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DNS Internet Internet Malware 145

Security Affairs

MAY 18, 2021

Uptycs’ threat research team discovered a new botnet, tracked as Simps botnet, attributed to Keksec group, which is focused on DDOS activities. Uptycs’ threat research team has discovered a new Botnet named ‘Simps’ attributed to Keksec group primarily focussed on DDOS activities. Discovery of Simps Botnet. see Figure 8).

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DDOS Malware Architecture IoT 140

SecureList

SEPTEMBER 21, 2023

The first-ever large-scale malware attacks on IoT devices were recorded back in 2008, and their number has only been growing ever since. A successful password cracking enables hackers to execute arbitrary commands on a device and inject malware. Starts ~50 browser instances per Windows PC which evade any anti-DDoS defense.

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IoT DDOS Passwords Malware 137

Security Boulevard

NOVEMBER 4, 2021

Since the onset of the pandemic, cyberattackers have increasingly looked to leverage DNS channels to steal data, launch DDoS attacks and deploy malware—and the cost of these attacks is rising. The post Don’t Get ‘Shawshanked’ by DNS Tunneling appeared first on Security Boulevard.

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DNS DDOS Threat Reports Malware 52

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.

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DNS Adware Malware Antivirus 123

Security Affairs

JANUARY 19, 2021

The attacks aimed at compromising the tarted systems to create an IRC botnet, which can later be used to conduct several malicious activities, including DDoS attacks and crypto-mining campaign. Supports UDP and TCP packets, but also application layer protocols such as HTTP, DNS, SSDP, and SNMP Protocol packing support created by the attacker.

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DDOS DNS Malware Internet 144

Security Affairs

DECEMBER 12, 2021

The attack_init function is also discarded, and the ddos attack function is called directly by the command processing function. During this process, a number of DNS requests are generated.” The analysis of the ELF sample revealed that it supports DDoS and backdoor commands. ” reads the post published by NetLab 360.

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DDOS DNS Passwords Authentication 145

Security Boulevard

APRIL 8, 2025

Encryption Technologies: Encryption protects data confidentiality and integrity, but attackers also use it to conceal malware, establish encrypted communication channels, and secure stolen data. Attackers use it to discover vulnerabilities, while defenders use it for malware analysis and software security.

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Cybersecurity Penetration Testing DNS Encryption 52

Krebs on Security

JANUARY 8, 2024

As detailed in my 2014 book, Spam Nation , Spamdot was home to crooks controlling some of the world’s nastiest botnets, global malware contagions that went by exotic names like Rustock , Cutwail , Mega-D , Festi , Waledac , and Grum. I can not provide DNS for u, only domains.

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Cybercrime Banking Computers and Electronics DDOS 259

Krebs on Security

SEPTEMBER 1, 2023

for Germany — which has a far larger market share of domain name registrations than.US — have very low levels of abuse, including phishing and malware,” Marks told KrebsOnSecurity. domains were the worst in the world for spam, botnet (attack infrastructure for DDOS etc.) . “Even very large ccTLDs, like.de

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Phishing Telecommunications Government DNS 288

eSecurity Planet

MAY 2, 2024

The vendor reports show that most attackers want credentials, most malware development is in credential-stealing software, and the market for stolen credentials is booming: Cisco: Found 54% of organizations experienced a cybersecurity incident; and of those incidents, 54% involved phishing and 37% involved credentials stuffing.

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Cybersecurity DDOS Penetration Testing Passwords 122

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.

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Malware Architecture DNS DDOS 144

Security Affairs

MARCH 10, 2020

“The threat actors behind this campaign are posting malware embedded inside various hacking tools and cracks for those tools on several websites. The domain started to be associated with malware around the time of the re-registration, however, it is unclear whether this Vietnamese individual has any ties to the malware campaign.”

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Hacking Advertising Malware DNS 145

Security Affairs

NOVEMBER 1, 2021

The botnet was created to launch DDoS attacks and to insert advertisements in the legitimate HTTP traffic of the victims, most of which are in China (96%). Qihoo 360’s Netlab Cybersecurity researchers discovered a huge botnet, tracked as Pink, that already infected over 1.6 million devices.

Architecture 145

Architecture DDOS Advertising DNS 145

Security Affairs

OCTOBER 23, 2018

Security experts from Sophos Labs have spotted a new piece of IoT malware tracked as Chalubo that is attempting to recruit devices into a botnet used to launch DDoS attacks. The attackers were using brute-force attacks (using the root:admin credential) on SSH servers to distribute the malware. ” continues the analysis.

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IoT DDOS Malware Architecture 107

Security Affairs

APRIL 1, 2019

The popular expert unixfreaxjp analyzed a new China ELF DDoS’er malware tracked as “Linux/DDoSMan” that evolves from the Elknot malware to deliver new ELF bot. The code seems inspired from multiple source code of China basis DDoS client, like Elknot. But what kind of malware is this Elknot Trojan?

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DDOS Malware Encryption Penetration Testing 110

Security Affairs

AUGUST 20, 2021

Mozi is an IoT botnet that borrows the code from Mirai variants and the Gafgyt malware , it appeared on the threat landscape in late 2019. According to the researchers, in the last months of 2019, the botnet was mainly involved in DDoS attacks.

IoT 108

IoT DNS Manufacturing Firmware 108

Security Affairs

NOVEMBER 21, 2019

.” The analysis of the bot revealed that it supports seven functions: reverse shell, self-uninstall, gather process’ network information, gather Bot information, execute system commands, run encrypted files specified in URLs, DDoS attack, etc. SecurityAffairs – Roboto botnet , malware). Pierluigi Paganini.

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DDOS Advertising System Administration DNS 107

eSecurity Planet

FEBRUARY 14, 2024

What Stateful Inspection Defends Against Stateful inspection protects network assets against attacks that attempt to corrupt or abuse processes such as TCP or Domain Name Service (DNS) that don’t check context when they receive data packet instructions. instead of eSecurityPlanet.com.

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Network Security Firewall DNS DDOS 107

Security Affairs

OCTOBER 5, 2020

Unlike other IoT DDoS botnets, Ttint implements 12 remote access functions such as Socket5 proxy for router devices, tampering with router firewall and DNS settings, executing remote custom system commands.

IoT 145

IoT Firmware Advertising DNS 145

Security Affairs

JANUARY 5, 2022

Threat actors continue to attempt to exploit Apache Log4J vulnerabilities in their campaigns to deploy malware on target systems, Microsoft warns. We have observed many existing attackers adding exploits of these vulnerabilities in their existing malware kits and tactics, from coin miners to hands-on-keyboard attacks.”

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Malware DNS DDOS Cryptocurrency 130