Security Affairs

JUNE 1, 2023

Threat actors are actively exploiting a command injection flaw, tracked as CVE-2023-28771, in Zyxel firewalls to install malware. Threat actors are actively attempting to exploit a command injection vulnerability, tracked as CVE-2023-28771 , that impacts Zyxel firewalls. in its firewall devices.

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Cisco Security

OCTOBER 19, 2021

In any perimeter defense a key component is firewalls—the proverbial guard towers in your fortifications. In this Threat Trends release, we’ll be looking at Cisco Secure Firewall. The goal is to highlight the common threats that organizations encounter and block with Secure Firewall. Secure Firewall version 7.0

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Security Affairs

JULY 22, 2023

Researchers warn of several DDoS botnets exploiting a critical flaw tracked as CVE-2023-28771 in Zyxel devices. Fortinet FortiGuard Labs researchers warned of multiple DDoS botnets exploiting a vulnerability impacting multiple Zyxel firewalls. Mirai botnets are frequently used to conduct DDoS attacks.”

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eSecurity Planet

OCTOBER 13, 2022

Distributed denial-of-service (DDoS) attacks occur when attackers use a large number of devices to attempt to overwhelm a resource and deny access to that resource for legitimate use. The very first DDoS attacks occurred when network engineers misconfigured networks and overwhelmed components by accident. Volumetric DDoS Attacks.

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SiteLock

AUGUST 27, 2021

In a matter of minutes, a distributed denial-of-service — or DDoS — attack can bring your website traffic to a grinding halt. DDoS attacks are growing in both size and frequency. Recovering from an DDoS attack like this could cost a small business hundreds of thousands of dollars. Why Is a DDoS Attack Destructive?

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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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Malwarebytes

FEBRUARY 24, 2022

According to a joint security advisory published yesterday by US and UK cybersecurity and law enforcement agencies, a new malware called Cyclops Blink has surfaced to replace the VPNFilter malware attributed to the Sandworm group, which has always been seen as a Russian state-sponsored group. Cyclops Blink.

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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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SiteLock

AUGUST 27, 2021

DDoS attacks are a common cyberthreat that can cost you thousands and take down your website. The good news: DDoS attacks are easily prevented with a web application firewall (WAF). What is a DDoS attack? Website downtime can cost as much as $427 per minute , and DDoS attacks cost an average of $120,000.

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Security Affairs

JANUARY 4, 2023

Researchers discovered a new Linux malware developed with the shell script compiler ( shc ) that was used to deliver a cryptocurrency miner. The ASEC analysis team recently discovered that a Linux malware developed with shell script compiler ( shc ) that threat actors used to install a CoinMiner. ” continues the report.

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Malwarebytes

JUNE 8, 2022

The common wisdom goes that Linux malware is rare, and for the most part this is true. Thanks to its built-in security defenses, strict user privilege model, and transparent source code, Linux enjoys far fewer malware infections than other operating systems. Cloud Snooper. How it works. HiddenWasp. How it works. How it works.

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eSecurity Planet

FEBRUARY 14, 2024

Stateful inspection is a firewall feature that filters data packets based on the context of previous data packets. For example, a firewall performing stateful inspection may be tracking an active FTP transfer with the FTP server and show a network laptop in a Listen or Closed status. Stateless protocols (UDP, HTTP, etc.)

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Security Affairs

DECEMBER 27, 2023

Researchers warn of attacks against poorly managed Linux SSH servers that mainly aim at installing DDoS bot and CoinMiner. Researchers at AhnLab Security Emergency Response Center (ASEC) are warning about attacks targeting poorly managed Linux SSH servers, primarily focused on installing DDoS bots and CoinMiners.

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eSecurity Planet

NOVEMBER 10, 2023

The DNS protocol was designed for use within a firewall on a secure network, and by default will communicate in plain text. A modern computing environment includes branch offices, remote workers, and mobile devices that must reach DNS servers from outside the firewall.

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Krebs on Security

MARCH 20, 2020

In February, hardware maker Zyxel fixed a zero-day vulnerability in its routers and VPN firewall products after KrebsOnSecurity told the company the flaw was being abused by attackers to break into devices. Security experts at Palo Alto Networks said Thursday their sensors detected the new Mirai variant — dubbed Mukashi — on Mar.

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eSecurity Planet

FEBRUARY 16, 2021

Malware, short for “malicious software,” is any unwanted software on your computer that, more often than not, is designed to inflict damage. Since the early days of computing, a wide range of malware types with varying functions have emerged. Best Practices to Defend Against Malware. Jump ahead: Adware. RAM scraper.

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SiteLock

AUGUST 27, 2021

Continuing our #AskSecPro DDoS series where we last discussed Application Layer Attacks , today we’ll focus on some of the most popular protocol-based DDoS attacks we’ve seen hit our customers’ web application firewall , SiteLock TrueShield™ , over the years. Protocol-Based DDoS Attacks.

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Security Affairs

MAY 30, 2022

The botnet was first discovered by Fortinet in March, the DDoS botnet targeted several routers and web servers by exploiting known vulnerabilities. The researchers attribute the botnet to the cybercrime group Keksec which focuses on DDoS-based extortion. Experts pointed out that the malware is being actively developed.

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eSecurity Planet

DECEMBER 8, 2023

Design robust server architecture to improve redundancy and capacity for resilience against failure or DDoS attacks. Firewalls should be hardened to close unneeded ports. Implement rate limiting to harden against DDoS and DNS tunneling attacks. to help prevent its cache from being poisoned by hackers.

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Security Affairs

JUNE 20, 2023

Researchers warn of an ongoing Tsunami DDoS botnet campaign targeting inadequately protected Linux SSH servers. Researchers from AhnLab Security Emergency response Center (ASEC) have uncovered an ongoing hacking campaign, aimed at poorly protected Linux SSH servers, to install the Tsunami DDoS botnet (aka Kaiten).

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SecureWorld News

OCTOBER 31, 2024

These botnets, networks of compromised devices, can perform attacks without the user realizing it, overwhelming networks, spreading spam, and even launching DDoS attacks. Vampire malware: draining systems dry This malware creeps in undetected, draining resources and stealing data in the dark.

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SiteLock

AUGUST 27, 2021

If businesses are to survive the growing threat of DDoS (Distributed Denial of Service) attacks, then DDoS protection must evolve quickly and respond even faster. Hackers have no shortage of options when it comes to launching DDoS attacks. DDoS attacks fundamentally require unprotected computers to launch their attacks.

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Security Affairs

DECEMBER 11, 2022

Samsung S22 hacked Sophos fixed a critical flaw in its Sophos Firewall version 19.5 Samsung S22 hacked Sophos fixed a critical flaw in its Sophos Firewall version 19.5

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Security Affairs

JUNE 17, 2023

Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Margaret’s Health is the first hospital to cite a cyberattack as a reason for its closure A database containing data of +8.9 Margaret’s Health is the first hospital to cite a cyberattack as a reason for its closure A database containing data of +8.9

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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 Insiders

JANUARY 31, 2021

Regardless of how familiar you are with Information Security, you’ve probably come across the term ‘malware’ countless times. From accessing your business-critical resources and sensitive information to halting business operations and services, a malware infection can quickly become an organization’s worst nightmare come true.

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CyberSecurity Insiders

MAY 28, 2023

Malware Analysis: Explore malware types, their behavior, and the techniques used for analyzing and detecting them. Investigate malware’s propagation methods, evasion techniques, and methods for identifying and mitigating potential threats.

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Security Affairs

FEBRUARY 3, 2020

Researchers from SonicWall revealed that hackers are attempting to compromise Linear eMerge E3 smart building access systems to recruit them in a DDoS botnet. “ SonicWall Capture Labs Threat Research team observe huge hits on our firewalls that attempt to exploit the command injection vulnerability with the below HTTP request.”

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SecureWorld News

JUNE 2, 2023

In addition to the tips mentioned above, website owners can also consider using the following security measures: Web application firewalls (WAFs). DDoS protection. DDoS attacks can overwhelm your website with traffic, making it unavailable to legitimate users. DDoS protection can help to mitigate the impact of DDoS attacks.

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CyberSecurity Insiders

MAY 6, 2021

For website business, the owners of these web portals have 2 primary concerns- one is to protect their sensitive consumer and business data and the other is to isolate them from prevailing malware and viruses from attacking their website.

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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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SiteLock

AUGUST 27, 2021

Over the past couple of years, it has become apparent that similar to home and office computers needing anti-virus software and a firewall to keep them protected, individual websites have become a prime target for hackers, and they too require some form of protection. This is what we call a DDoS , or distributed denial of service attack.

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SiteLock

AUGUST 27, 2021

A recent report from PandaLabs suggests that “there were twice as many malware infections in 2014 compared to 2013” and that 2015 could be even worse. Today’s attacks are becoming increasingly sophisticated, and a simple malware injection can compromise your entire database. Automatic remediation of known threats.

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SiteLock

AUGUST 27, 2021

Bad bots perform malicious tasks such as, DDoS attacks, website scraping and comment spam. Botnets and DDoS Attacks. DDoS, short for Distributed Denial of Service, is an attack that attempts to make a website unavailable by overwhelming it with traffic from multiple sources. DDoS attacks are often performed by botnets.

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Malwarebytes

MAY 15, 2023

One malware operator that has been found to exploit vulnerable Ruckus devices is the relatively new botnet, AndoryuBot. Infected devices are used to propagate the botnet malware to other devices and are used in DDoS attacks. To avoid detection and to bypass firewalls, the botnet uses the SOCKS proxying protocol.

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eSecurity Planet

FEBRUARY 21, 2024

A circuit-level gateway (CLG) is a firewall feature that acts as a proxy and filters packets based on session information. Successful implementation of a circuit-level gateway defends against unrestricted communication, which can enable network probing, malware delivery, and other attacks.

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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. Also Read: Mobile Malware: Threats and Solutions. Antivirus Software. Back to top. Best Antivirus Protection for Consumers.

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