Blog

Mastering Defense and Understanding Offense: Approach of Detecting Abnormal Attack Behaviors

agosto 29, 2023 | NSFOCUS

In offensive and defensive exercises, attackers will use various attack methods to maximize their objectives, including not only common attack methods but also complex attacks. Phishing email is popular among attackers as the most commonly used and low-cost attack method. Attackers typically use a variety of techniques and deception to send emails with malicious attachments […]

Uma imagem que ilustra uma pessoa mexendo em diversos computadores.

Ataque de Negação de Serviço: DoS ou DDoS? Entenda

agosto 18, 2023 | Eduardo Guerra

Os ataques de Negação de Serviço (DoS) e Negação de Serviço Distribuído (DDoS) são um dos principais desafios enfrentados pelas empresas e instituições no mundo digital. Neste artigo, vamos explorar o que são esses ataques, suas diferenças e motivações por trás deles. Além disso, você vai saber sobre a importância de proteger sua empresa contra […]

From Ripples to Waves: The Swift Evolution of the “Boat” Botnet

agosto 18, 2023 | NSFOCUS

The botnet family “Boat” was first discovered by NSFOCUS Security Labs in June 2022. Its name comes from the fact that malicious samples in its early versions propagate with the file name “boat”. At the same time, since some malicious samples in later versions of this family retain symbolic information and there are a large […]

How to Achieve Sensitive Data Unlearning for Machine Learning Models?

agosto 11, 2023 | NSFOCUS

As machine learning is increasingly used in data analysis in cybersecurity, there is a risk of privacy disclosure to some extent if models inadvertently capture sensitive information from training data. Since training data will exist in the model parameters for a long time, it is possible to directly output training samples if some data with […]

Uma imagem que ilustra um hacker mexendo em um notebook.

KmsdBot: A Customized Botnet Family with DDoS and Mining Capabilities

agosto 7, 2023 | NSFOCUS

I. Overview NSFOCUS Security Labs recently detected that a new botnet family KmsdBot, which combines DDoS and mining functions, has become active again. Attackers continue to replace C&C infrastructure and update Trojan versions. Compared with the traditional botnet-like family, KmsdBot adopts a brand-new architecture and is developed in the Go programming language. The simplicity, high […]

Uma imagem que ilustra um cadeado que significa proteção cibernética.

O que é Pentest? Entenda os tipos e para que serve

agosto 7, 2023 | Eduardo Guerra

Em um mundo cada vez mais conectado e dependente da tecnologia, a segurança cibernética já se tornou um dos principais pilares para todos os tipos de empresas.  Com o aumento constante do cibercrime, é crucial adotar medidas proativas para proteger informações sensíveis e garantir a integridade dos negócios.  Diante disto, o Pentest surge como uma […]

Metabase Remote Code Execution Vulnerability (CVS 2023-37470)

agosto 3, 2023 | NSFOCUS

Overview Recently, NSFOCUS CERT detected a remote code execution vulnerability in Metabase (CVE-2023-37470). Due to a flaw in the vulnerability fix for CVS 2023 38646, attackers can achieve remote code execution through H2 connection string injection. Affected users should take protective measures as soon as possible. Reference link: https://github.com/metabase/metabase/security/advisories/GHSA-p7w3-9m58-rq83 Scope of Impact Affected version Open […]

NSFOCUS ISOP

NSFOCUS ISOP: XDR Technology Empowered with Strong SOAR Capabilities for Modern SOC

agosto 3, 2023 | NSFOCUS

SANTA CLARA, Calif., Aug 3, 2023 – NSFOCUS, a global provider of intelligent hybrid security solutions, today announced the general availability of NSFOCUS Intelligent Security Operations Platform (ISOP), an innovative security analytics and intelligent operations platform that can streamline the security analyst experience, rejuvenate threat response efficiency and improve security operations productivity. NSFOCUS ISOP was […]

QNAP Multiple Vulnerabilities Notification

agosto 2, 2023 | NSFOCUS

Overview Recently, NSFOCUS CERT monitored that QNAP officially released the QVPN code execution vulnerability and QANP denial-of-service vulnerability. Affected users should take protective measures as soon as possible. VPN Code Execution Vulnerability (CVS 2022-27595): There is a code execution vulnerability in the Windows version of the QVPN client, which can be exploited by authenticated local […]

Metabase Remote Code Execution Vulnerability (CVS 2023-38646) Notification

agosto 1, 2023 | NSFOCUS

Overview Recently, NSFOCUS CERT detected a remote code execution vulnerability in Metabase (CVE-2023-38646). Unauthenticated attackers can successfully exploit this vulnerability to execute arbitrary commands with Metabase server privileges on the target server. Affected users should take protective measures as soon as possible. Reference link: https://www.metabase.com/blog/security-advisory Scope of Impact Affected version Open source version: Enterprise version: […]