Cisco Security

AUGUST 11, 2021

The REvil ransomware family has been in the news due to its involvement in high-profile incidents, such as the JBS cyberattack and the Kaseya supply chain attack. The threat actors behind REvil attacks operate under a ransomware-as-a-service model. Figure 1-DNS activity surrounding REvil/Sodinokibi.

Ransomware 140

Ransomware DNS Encryption Backups 140

CyberSecurity Insiders

MAY 18, 2022

These developments have made the perimeter so porous that the old approach of simply hiding behind a firewall and keeping the rest of the world at bay is no longer feasible. So why aren’t more organizations taking advantage of protective DNS? So where do we go from here? The issue likely comes down to awareness.

DNS 140

DNS Cybersecurity CISO Social Engineering 140

Krebs on Security

APRIL 13, 2022

” “These could be the kind of vulnerabilities which appeal to ransomware operators as they provide the potential to expose critical data,” said Kevin Breen , director of cyber threat research at Immersive Labs. CVSS scores and are listed as “exploitation more likely by Microsoft.”

DNS 260

DNS Internet Internet Firewall 260

Malwarebytes

JULY 26, 2022

It’s no secret that ransomware is one of the most pressing cyber threats of our day. What worse, ransomware gangs have increased their attacks on a range of vulnerable industries, with disruptions to business operations, million-dollar ransom demands, data exfiltration, and extortion. Part 2: Pinpointing the ransomware.

Encryption 65

Encryption Ransomware Backups Firewall 65

The Last Watchdog

DECEMBER 13, 2020

It can also deploy web filtering, threat prevention, DNS security, sandboxing, data loss prevention, next-generation firewall policies, information security and credential theft prevention. . Clicking on a link releases crypto worms and ransomware that are network-based. Ransomware. But it much further.

B2C 214

B2C IoT B2B VPN 214

Security Affairs

MARCH 17, 2022

TrickBot initially partnered with Ryuk ransomware that used it for initial access in the network compromised by the botnet. Then Ryuk was replaced by Conti Ransomware gang who has been using Trickbot for the same purpose. The Trickbot operation has switched to using MikroTik routers as C&C servers since 2020. Pierluigi Paganini.

Malware 120

Malware DNS Passwords Ransomware 120

Security Affairs

JUNE 20, 2022

Security Affairs is one of the finalists for the best European Cybersecurity Blogger Awards 2022 – VOTE FOR YOUR WINNERS. I ask you to vote for me again (even if you have already done it), because this vote is for the final.

Spyware 69

Spyware DNS Surveillance Ransomware 69

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 spoofing or poisoning.

DNS 130

DNS Encryption Penetration Testing Architecture 130

Krebs on Security

AUGUST 22, 2023

Security experts say this same tourist dynamic is a dead giveaway in virtually all computer intrusions that lead to devastating attacks like data theft and ransomware, and that more organizations should set simple virtual tripwires that sound the alarm when authorized users and devices are spotted exhibiting this behavior.

Ransomware 187

Ransomware DNS Firewall 187

SecureWorld News

MARCH 29, 2024

Some of the unearthed hoaxes delivered infostealers such as Aurora Stealer, Batloader, and IceID, with the latter having gained notoriety for facilitating Quantum ransomware distribution. This ends up executing sketchy code that installs viruses, ransomware, spyware, or adware behind the victim's back.

Cybercrime 83

Cybercrime Advertising Engineering Antivirus 83

Malwarebytes

FEBRUARY 10, 2023

Mitigation Although it can be difficult to mitigate DDoS risks, the Health Sector Cybersecurity Coordination Center (HC3) is encouraging healthcare organizations to enable firewalls to mitigate application-level DDoS attacks and use content delivery networks (CDN).

DDOS 79

DDOS Healthcare Computers and Electronics Government 79

CyberSecurity Insiders

JUNE 29, 2023

Executive summary Credential harvesting is a technique that hackers use to gain unauthorized access to legitimate credentials using a variety of strategies, tactics, and techniques such as phishing and DNS poisoning. According to recent research , phishing assaults targeted credential harvesting in 71.5% of cases in 2020.

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Phishing Authentication Cyber threats DNS 85

SecureList

SEPTEMBER 21, 2023

Ransomware Unlike DDoS malicious programs, ransomware largely targets IoT devices that contain user data: NAS boxes. DeadBolt, which affected thousands of QNAP NAS devices in 2022, is a prominent example of IoT ransomware. DNS changer Malicious actors may use IoT devices to target users who connect to them.

IoT 85

IoT DDOS Passwords Malware 85

Malwarebytes

SEPTEMBER 23, 2021

Autodiscover works for client applications that are inside or outside firewalls and in resource forest and multiple forest scenarios” Which boils down to a feature of Exchange email servers that allows email clients to automatically discover email servers, provide credentials, and then receive proper configurations.

Passwords 71

Passwords Authentication Firewall DNS 71

CyberSecurity Insiders

JANUARY 6, 2022

Many people still don’t realize the dangers of phishing, malware, ransomware, unpatched software, and weak passwords. HTTPS and DNS), data link (e.g., Ethernet and MAC), the session (WEB sockets), transport (SSL, TCP, and UDP), perimeter (firewalls), and physical layers (securing endpoint devices).

Encryption 134

Encryption Identity Theft Authentication Data breaches 134

eSecurity Planet

SEPTEMBER 3, 2022

For example, the 2016 DDoS attack on the Dyn managed domain name service (DNS) caused the DNS service to fail to respond to legitimate DNS inquiries and effectively shut down major sites such as PayPal, Spotify, Twitter, Yelp, and many others. Also read: How to Secure DNS. Types of DDoS Attacks.

DDOS 133

DDOS DNS Firewall Internet 133

eSecurity Planet

SEPTEMBER 7, 2021

Some of the more noteworthy recent zero day attacks happened to SolarWinds and its customers, when vulnerabilities in the Orion IT management platform left them exposed for months, and a massive ransomware attack on Kaseya’s customers also happened via an unknown vulnerability. What Are Zero Day Threats? Trust no one.

Antivirus 127

Antivirus Software Risk Malware 127

Vipre

JANUARY 25, 2021

While free backup and recovery tools are widely available, paid tools offer a wide range of extra features, including, among others, anti-ransomware, unauthorized encryption reversal, and cloud backup support. Internet ads are one of the major sources of phishing scams and ransomware attacks. Ad Blockers.

Identity Theft 40

Identity Theft Backups VPN Antivirus 40

Digital Shadows

JANUARY 30, 2023

We contained both intrusions by preventing what looked like the threat actor’s primary objective: deploying ransomware. The VirusTotal passive DNS entry for this IP address showed various subdomains being used. Figure 4: VirusTotal Intelligence Query Figure 5: Passive DNS replications for 88.119.169[.]108 These logs will help.

Social Engineering 40

Social Engineering DNS Engineering Malware 40

eSecurity Planet

SEPTEMBER 29, 2021

Ransomware is everywhere these days, striking fear into the hearts of IT and business managers alike. And studies support that perception, showing ransomware growing in both prevalence and effectiveness. Best Ransomware Removal Tools. Here we’ll focus on removal tools. Protect against cloud threats and misconfiguration.

Ransomware 102

Ransomware VPN Backups Malware 102

McAfee

DECEMBER 22, 2021

Latest updates highlighted Conti ransomware group actively leveraging the Log4Shell exploit to gain access to internal corporate resources and lunch their malicious payloads. Ensure you run configuration audits for cloud assets that allow unrestricted outbound access and does not use firewalls or NAT GW’s for outbound connections.

Malware 98

Malware Risk Internet Internet 98

eSecurity Planet

DECEMBER 2, 2021

A next-generation firewall (NGFW) is an important component of network security and represents the third generation of firewall technology. NGFWs provide capabilities beyond that of a traditional, stateful firewall , including cloud-delivered threat intelligence , integrated intrusion prevention , and application awareness and control.

Firewall 123

Firewall DNS Network Security Artificial Intelligence 123

eSecurity Planet

JUNE 8, 2023

It can be time consuming to establish these protocols on an organization’s DNS servers, but doing so will provide two key benefits. Email security tools offer features that screen emails for malicious content using antivirus, anti-spam, DNS, attachment, and other analytics.

Firewall 65

Firewall DNS Authentication Malware 65

eSecurity Planet

MARCH 14, 2023

When the internet arrived, the network added a firewall to protect networks and users as they connected to the world wide web. Technical controls may be implemented by: Hardware appliances : switches, routers, firewalls, etc. In a complex, modern network, this assumption falls apart.

Network Security 84

Network Security Firewall Penetration Testing Encryption 84

eSecurity Planet

APRIL 26, 2024

Server: Provides powerful computing and storage in local, cloud, and data center networks to run services (Active Directory, DNS, email, databases, apps). Next-generation firewalls (NGFWs): Improve the general security of a firewall with advanced packet analysis capabilities to block malware and known-malicious sites.

Architecture 103

Architecture Network Security Firewall Risk 103

eSecurity Planet

NOVEMBER 3, 2022

We’ll get into specifics below, but here are five steps to prevent ransomware attacks, along with links to jump ahead: Harden against attacks : Patch, update, and change settings to harden resources against attacks. Hardening includes, but is not limited to: Block unused ports on servers and firewalls. Anti-DDoS Architecture.

DDOS 116

DDOS Firewall DNS Architecture 116

CyberSecurity Insiders

JANUARY 19, 2022

Security teams today are challenged with quickly identifying and disrupting an increasing number of external threats, including ransomware, phishing, fraud and spoofing.

Artificial Intelligence 52

Artificial Intelligence Phishing DNS Mobile 52

eSecurity Planet

MARCH 22, 2023

The tools also depend upon physical controls that should also be implemented against malicious physical access to destroy or compromise networking equipment such as routers, cables, switches, firewalls, and other networking appliances. These physical controls do not rely upon IT technology and will be assumed to be in place.

Firewall 96

Firewall Network Security Penetration Testing Encryption 96

eSecurity Planet

FEBRUARY 16, 2021

Ransomware. Experts say the best defense is a multi-pronged network security strategy that includes a firewall, anti-malware software, network monitoring, intrusion detection and prevention (IDPS), and data protection. Unlike ransomware, it might be a criminal operation that does not involve the collection of a ransom.

Malware 105

Malware Adware Spyware Antivirus 105

Webroot

JUNE 21, 2021

It’s important for a business to be prepared with an exercised business continuity and disaster recovery (BC/DR) plan plan before its hit with ransomware so that it can resume operations as quickly as possible. It’s also essential to ensure end-users are trained on ransomware threats as a part of a good security awareness training program.

Backups 119

Backups DNS Ransomware Antivirus 119

Security Boulevard

APRIL 18, 2022

Efficiency: You also need to do things as quickly as possible, consuming a minimum of resources due to limited available resources and the significant damage (especially against an attack like ransomware) that can happen in minutes. Should an escalation of privileges or firewall rule change get rolled back?

Technology 52

Technology Marketing Phishing DNS 52

eSecurity Planet

JANUARY 14, 2022

And DDoS attackers have adopted a tactic from ransomware groups and are seeking payment from victims and potential victims. Meanwhile, the 2021 State of the Data Center Industry research report placed DDoS behind ransomware as the threats that most worry the enterprise. Protects websites, networks, DNS and individual IPs.

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DDOS DNS Firewall Media 121

Fox IT

JUNE 23, 2020

WastedLocker is a new ransomware locker we’ve detected being used since May 2020. Evil Corp were previously associated to the Dridex malware and BitPaymer ransomware, the latter came to prominence in the first half of 2017. The new WastedLocker ransomware appeared in May 2020 (a technical description is included below).

Ransomware 45

Ransomware Encryption Malware Architecture 45

eSecurity Planet

FEBRUARY 4, 2022

Antivirus Software WiFi 6 Routers Virtual Private Networks Password Managers Email Security Software Web Application Firewall Bot Management Software. DNS leak protection Kill switch No log policy. Web Application Firewall (WAF). While most firewalls are network security solutions, a WAF works at the application layer.

Internet 136

Internet Internet Software Antivirus 136

eSecurity Planet

MARCH 16, 2023

DNS attacks : DNS cache poisoning, or hijacking, redirects a legitimate site’s DNS address and takes users to a malicious site when they attempt to navigate to that webpage. In the early stages of the pandemic, the exploited Remote Desktop Protocol (RDP) was one of the most common ransomware attack vectors.

Network Security 103

Network Security Firewall Internet Internet 103

Malwarebytes

JANUARY 7, 2024

Several safeguards emerged to stop this: SPF (Sender Policy Framework): This uses DNS records to indicate to receiving mail servers which IP addresses are authorized to send mail for a given domain. SMTP smuggling SMTP smuggling takes advantage of inconsistencies in the way that proxy servers and firewalls handle SMTP traffic.

DNS 112

DNS Authentication Firewall Accountability 112

Malwarebytes

AUGUST 8, 2023

Because of the HTTPS connection and the port the data exchange takes place on (QUIC on port 7844), it is unlikely to be picked up by protection software like firewalls unless specifically instructed to do so. Use endpoint security software that can prevent exploits and malware used to deliver ransomware. Prevent intrusions.

Backups 80

Backups Ransomware DNS Software 80