Threat Analysis

Uma imagem que ilustra um hacker.

NSFOCUS APT Monthly Briefing – March 2025

April 27, 2025 | NSFOCUS

Regional APT Threat Situation Overview In March 2025, the global threat hunting system of NSFOCUS Fuying Laboratory discovered a total of 19 APT attack activities. These activities were mainly distributed in South Asia, East Asia, Eastern Europe, and South America, as shown in the following figure. In terms of group activity, the most active APT […]

Uma imagem que ilustra um hacker.

A Deep Analysis of the Ransomware Group Babuk2’s Recent Activities

March 28, 2025 | NSFOCUS

Overview Recently, NSFOCUS CERT detected that the Babuk2 group has been frequently publishing sensitive data of several well-known organizations on its dark web site. The data is from multiple sectors, including government, finance, internet, healthcare, and education, across various countries and regions. Up to this month, at least 71 victims’ data has been disclosed, and […]

2018 DDoS Attack Landscape-5

May 8, 2019 | Adeline Zhang

3.3 DDoS Attack Duration 3.3.1 Attack Duration Distribution In 2018, the average duration of a DDoS attack was 42 minutes, down 17% from 2017. This indicates that DDoS attacks were upgraded in industrialization, weaponization, and efficiency and DDoS-as-aService gained momentum for fast growth. We noticed that the longest DDoS attack in 2018 lasted around 12 […]

Analysis of File Disclosure by APT34

May 6, 2019 | Adeline Zhang

1 About APT34 APT34, exposed to the public view in 2014, mainly targets Middle Eastern countries and some international organizations. APT34 attacks a variety of sectors mainly in the Middle East, but not limited to finance, government, energy, chemical engineer, and telecommunications.

ADB.Mirai: New Mirai Botnet Variant Spreading via the ADB Debug Port

February 26, 2019 | Adeline Zhang

Overview At the beginning of 2019, the domestic and overseas security vendors have detected cryptominers that spread via Android devices with an open ADB debug port. Recently, NSFOCUS Fu Ying Labs has detected once more such botnets that can be used to launch distributed denial-of-service (DDoS) attacks. The sample analysis suggests that this botnet family […]

Adobe Security Bulletin for December 2018 Security Updates

December 29, 2018 | Adeline Zhang

Overview On December 11, 2018 (local time), Adobe released security updates which address multiple vulnerabilities in Acrobat and Reader.

ThinkPHP Remote Code Execution Vulnerability Handling Guide

December 17, 2018 | Adeline Zhang

1 Vulnerability Overview Recently, ThinkPHP posted a blog, announcing the release of an update that addresses a high-risk remote code execution (RCE) vulnerability. This vulnerability stems from the framework’s insufficient checks on controller names, which, in case forced routing is not enabled, would allow arbitrary code execution or even access to the server. ThinkPHP is […]

ThinkPHP 5.x Remote Code Execution Vulnerability Threat Alert

December 13, 2018 | Adeline Zhang

Overview Recently, ThinkPHP posted a blog, announcing the release of an important update that addresses a critical vulnerability. This security update fixes a getShell vulnerability caused by the framework’s insufficient checks on controller names in case forced routing is not enabled. The vulnerability, which affects ThinkPHP 5.0 and 5.1, is fixed in the latest version.

Adobe Flash Player 0-Day Vulnerabilities Threat Alert

December 11, 2018 | Adeline Zhang

Overview On December 5, 2018, local time, Adobe released a security bulletin to document the remediation of two vulnerabilities, namely a critical 0-day vulnerability (CVE-2018-15982) in Adobe Flash Player and an important vulnerability (CVE-2018-15983) in Adobe Flash Player installer.

“WeChat Pay” Ransomware Analysis and Decryption Tool

December 10, 2018 | Adeline Zhang

Risk Overview Recently, over 20,000 PCs in China have fallen victim to WeChat Pay ransomware. Files on the affected devices are encrypted by the ransomware. To regain access to the files, users are asked to scan a WeChat QR code that appears in a pop-up window and pay 110 yuan (about $16) in ransom. So […]