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

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 83

DNS Internet Internet Encryption 83

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 94

Internet Internet Advertising Encryption 94

Webroot

FEBRUARY 16, 2021

In recent months, you’ve likely heard about DNS over HTTPS , also known as DNS 2.0 and DoH, which is a method that uses the HTTPS protocol to encrypt DNS requests, shielding their contents from malicious actors and others who might misuse such information. Ultimately, this DNS privacy upgrade has been a long time coming.

DNS 69

DNS Encryption Firewall Network Security 69

Security Affairs

AUGUST 10, 2020

Our findings show that both Telenor and MPT block websites using DNS tampering. MPT is ignoring the DNS requests to the blocked domains, while Telenor is redirecting them to an IP address outside of the country. The block page uses the domain “ urlblocked.pw ” registered the 26th of March 2020 with a free Let’s encrypt certificate.

Internet 75

Internet Internet Telecommunications DNS 75

Cisco Security

AUGUST 11, 2021

We looked at REvil, also known as Sodinokibi or Sodin, earlier in the year in a Threat Trends blog on DNS Security. In it we talked about how REvil/Sodinokibi compromised far more endpoints than Ryuk, but had far less DNS communication. Figure 1-DNS activity surrounding REvil/Sodinokibi. Encrypting files.

Ransomware 140

Ransomware DNS Encryption Backups 140

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 352

Hacking Cybercrime DNS Antivirus 352

Malwarebytes

JULY 26, 2022

Part 1: Your data has been encrypted! Part 1: Your data has been encrypted! As you can see, our files have in fact been encrypted by the ransomware across multiple directories with the “ encrypt ” extension. Let’s start a ping to Google’s DNS server. encrypted versions of the same file. .

Encryption 65

Encryption Ransomware Backups Firewall 65

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

Security Affairs

SEPTEMBER 25, 2022

builder Over 39K unauthenticated Redis services on the internet targeted in cryptocurrency campaign Hackers stole $160 Million from Crypto market maker Wintermute U.S. builder Over 39K unauthenticated Redis services on the internet targeted in cryptocurrency campaign Hackers stole $160 Million from Crypto market maker Wintermute U.S.

Cryptocurrency 83

Cryptocurrency Data breaches DNS DDOS 83

eSecurity Planet

AUGUST 8, 2022

The signature-based email authentication technique called DKIM merges the specifications for domain keys and identified-internet-mail specifications. A public key is stored with the Domain Name System (DNS) for download by any email server receiving emails with the encrypted digital signature. What is SPF?

DNS 110

DNS Phishing Authentication Marketing 110

SecureWorld News

MARCH 29, 2024

Malvertising acts as a vessel for malware propagation. At its core, this tactic revolves around gaming the trust users put in reputable internet services, including search engines, and the familiarity they have with online advertising per se. One of the biggest pitfalls with malvertising is how difficult it can be to detect.

Cybercrime 86

Cybercrime Advertising Engineering Antivirus 86

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

Security Affairs

OCTOBER 22, 2021

The FiveSys rootkit uses the same technique to remain under the radar, it is very similar to the Undead malware and likely originate from China where is used to target domestic games. The rootkit was used by threat actors to redirect internet traffic to a custom proxy server. Follow me on Twitter: @securityaffairs and Facebook.

Malware 111

Malware DNS Internet Internet 111

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 130

DNS Encryption Penetration Testing Architecture 130

Identity IQ

MARCH 9, 2023

IdentityIQ We rely on the internet, from communicating with loved ones on social media to working and conducting business. Additionally, fake hotspots may contain malware that can infect your device and allow criminals to gain control of it. Use a VPN A VPN encrypts your traffic with military-grade encryption.

VPN 98

VPN Antivirus Identity Theft DNS 98

CyberSecurity Insiders

MARCH 21, 2021

With a VPN like Surfshark to encrypt your online traffic and keep it protected against any security breach, your valuable data isn’t going to get compromised easily anytime soon. Anti-virus and anti-malware . In fact, over 25% of small businesses are using a VPN to access the internet. Protecting your data is very simple.

Small Business 145

Small Business Cyber Attacks VPN Backups 145

Krebs on Security

FEBRUARY 24, 2023

The Mylobot malware includes more than 1,000 hard-coded and encrypted domain names, any one of which can be registered and used as control networks for the infected hosts. BitSight researchers found significant overlap in the Internet addresses used by those domains and a domain called BHproxies[.]com. com on Mar.

Accountability 229

Accountability Advertising Marketing Malware 229

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 103

DNS DDOS Firewall Architecture 103

Security Boulevard

MAY 17, 2023

Most of these steps could’ve been blocked with the aid of DNS protection. It would be easy to chalk up this increase to the development and introduction of new advanced types of malware, but the surprising fact is that many of the same threats and exploits used in data breaches in 2013 are still being successfully employed 10 years later.

Data breaches 52

Data breaches DNS Malware Phishing 52

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. Statista portal predicts their number will exceed 29 billion by 2030. Tested, tried.

IoT 86

IoT DDOS Passwords Malware 86

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 obtained encrypted passwords from NetScaler ADC configuration files, and the decryption key was stored on the ADC appliance. 189) for malware staging and a second C2 IP (85.239.53[.]49)

VPN 105

VPN Ransomware DNS Malware 105

Security Affairs

DECEMBER 12, 2019

“To compromise targeted networks, GALLIUM target unpatched internet-facing services using publicly available exploits and have been known to target vulnerabilities in WildFly/JBoss.” The operators leverage on low cost and easy to replace infrastructure using dynamic-DNS domains and regularly reused hop points.

Telecommunications 66

Telecommunications DNS Malware Advertising 66

Troy Hunt

JULY 12, 2018

The rapid adoption has been driven by a combination of ever more visible browser warnings (it was Chrome and Firefox's changes which prompted the aforementioned tipping point post), more easily accessible certificates via both Let's Encrypt and Cloudflare and a growing awareness of the risks that unencrypted traffic presents. DNS Hijacking.

DNS 277

DNS Wireless Risk Banking 277

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. This botnet does not seem to be a very typical player.”

IoT 138

IoT Firmware DNS Advertising 138

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 encrypt both the main bot component and its corresponding Lua script using the ChaCha stream cipher.” ” continues the analysis.

IoT 80

IoT DDOS Architecture Malware 80

Vipre

JANUARY 25, 2021

According to the independent institute AV-TEST , the number of total new malware in 2020 increased by 13% compared to the last year, and malware for macOS by 1200% for the same period. An easy way to enhance your online security and privacy is by using a VPN while browsing the internet. Identity Theft Protection Tools.

Identity Theft 40

Identity Theft Backups VPN Antivirus 40

SecureList

JUNE 2, 2022

In their initial disclosures on this threat actor, TeamT5 identified three malware families: SpyDealer, Demsty and WinDealer. In 2020, we discovered a whole new distribution method for the WinDealer malware that leverages the automatic update mechanism of select legitimate applications. WinDealer is a modular malware platform.

Malware 113

Malware Encryption Social Engineering Telecommunications 113

Security Affairs

NOVEMBER 9, 2020

“The Snugy backdoor uses a DNS tunneling channel to run commands on the compromised server. The attackers were sending suspicious commands to the Exchange server via the Internet Information Services (IIS) process w3wp.exe. ” reads the analysis published by the experts.

DNS 114

DNS Accountability Government Cyber Attacks 114

Duo's Security Blog

JULY 8, 2021

Computers and networks have been dealing with malware in one form or another for decades. When Popp’s AIDS ransomware was released, it didn’t rely on an internet connection, nor did it have the benefit of Satoshi’s brain child (which was still years away). From there the malware found its way onto multiple systems.

Ransomware 100

Ransomware DNS Encryption Healthcare 100

Security Affairs

JULY 11, 2022

A large-scale phishing campaign is targeting Internet-end users in Brazil and Portugal since March 2022. Figure 2 presents an example of an SMS sent to Internet end-users during the ANUBIS social engineering wave. As observed, criminals are using the Let’s Encrypt CA to create valid HTTPs certificates. The Phishing template.

Phishing 100

Phishing Social Engineering Banking Engineering 100

SecureList

DECEMBER 8, 2022

Just to clarify, the subheading isn’t a normal quote, but a message that Janicab malware attempted to decode in its newest use of YouTube dead-drop resolvers (DDRs). Janicab was first introduced in 2013 as malware able to run on MacOS and Windows operating systems. Janicab 1.2.9a. Janicab 1.1.2. LNK files structure comparison.

Malware 104

Malware DNS Engineering Internet 104

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.

DDOS 81

DDOS System Administration Advertising DNS 81

Security Affairs

DECEMBER 20, 2018

The malware tries to connect to the remote host 149.154.157.104 (EDIS-IT IT) through an encrypted SSL channel, then it downloads other components and deletes itself from the filesystem. Registry key created by malware. Figure 2: Complete malware implant folder. Example of execution of the malware. As shown in Fig.3,

Banking 75

Banking Malware Internet Internet 75

eSecurity Planet

MAY 25, 2022

These solutions can, like antivirus software, use signature-based technology to identify known malware attacks, but many new IDS and IPS also incorporate anomaly-based algorithms often boosted by artificial intelligence (AI). Other NGIPS tools add sandboxing features for automatic and manual inspection of potential malware.

Firewall 97

Firewall Wireless Software Antivirus 97

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 136

Internet Internet Software Antivirus 136

SecureList

JANUARY 13, 2022

The group seems to work more like a unit within a larger formation of Lazarus attackers, with the ability to tap into its vast resources: be it malware implants, exploits, or infrastructure. If the document isn’t blocked from connecting to the internet, it fetches a remote template that is another macro-enabled document.

Cryptocurrency 126

Cryptocurrency Malware Accountability Banking 126