Does It Stop When Someone Is Watching? The Suspicious Behavior of a New Type of Infostealer

Does It Stop When Someone Is Watching? The Suspicious Behavior of a New Type of Infostealer

It is already well known that illegal software and cracked programs can be exploited for malware distribution. Recently, AhnLab identified a new type of information theft malware (Infostealer) disguised as an illegal program. This malware was first detected in mid-August and, after altering its execution method, began spreading widely in September. Notably, it not only […]

September 2026 Threat Trend Report on APT Groups

September 2026 Threat Trend Report on APT Groups

Purpose and Scope APT cases disclosed in September 2026 demonstrate that attacks have evolved to exploit the developer ecosystem, cloud services, and network management infrastructure as trust layers. Legitimate software installers, GitHub repositories, Microsoft 365, OneDrive, Telegram, Nostr, routers, and authentication servers were all included in the attack chain. Key Trends Supply chain attacks have […]

Analysis of the Infrastructure of ARTEX, a Chinese AI Penetration Testing Tool #4 – The Birth of Copy Cat

Analysis of the Infrastructure of ARTEX, a Chinese AI Penetration Testing Tool #4 – The Birth of Copy Cat

Key Summary Since the original ARTEX GitHub repository disappeared, there has been an increase in independent distributions and customized instances based on the existing ARTEX codebase. These distributions are being redistributed with the product name, UI, filesystem structure, agent settings, and language modified, while retaining traces of ARTEX. Key Observations In several instances, ARTEX was […]

Case of AgentTesla Malware Distribution Disguised as a Business Proposal Email

Case of AgentTesla Malware Distribution Disguised as a Business Proposal Email

Recently, the AhnLab SEcurity intelligence Center (ASEC) identified instances of phishing emails being circulated that disguise themselves as requests to review a business proposal. The email body asks recipients to review the attached product list and reply with their feedback on inventory and pricing, thereby prompting users to download and open the attached ZIP file. […]

The Threat of AI-Driven Autonomous Penetration Testing, as Examined by ARTEX

The Threat of AI-Driven Autonomous Penetration Testing, as Examined by ARTEX

Overview AI is being used for various tasks that were previously performed manually, such as research, document writing, and code analysis. A 2026 corporate survey also showed that the scope of AI adoption among organizations had expanded compared to the previous year. Recently, there has been a trend toward automating a significant portion of work […]

September 2026 Threat Trend Report on Ransomware

September 2026 Threat Trend Report on Ransomware

Purpose and Scope This report summarizes the quantity of new ransomware samples collected, the number of compromised systems, and statistics on targeted businesses during the month of September 2026, as well as major Korean & global ransomware issues. The analysis is based on data collected through ATIP (AhnLab Threat Intelligence Platform) and AhnLab Smart Defense, […]

Beware of Phishing Emails Disguised as Purchase Orders

Beware of Phishing Emails Disguised as Purchase Orders

Recently, the AhnLab SEcurity intelligence Center (ASEC) identified instances of phishing emails being circulated that disguise themselves as requests to confirm purchase orders. The email body asks recipients to review the attached purchase order and reply with the relevant information, prompting users to download and open the attached DOCX file. Attachment: PURCHASED ORDER.Docx   [Figure […]

Does It Stop When Someone Is Watching? The Suspicious Behavior of a New Type of Infostealer

It is already well known that illegal software and cracked programs can be exploited for malware distribution. Recently, AhnLab identified a new type of information theft malware (Infostealer) disguised as an illegal program. This malware was first detected in mid-August and, after altering its execution method, began spreading widely in September. Notably, it not only […]

September 2026 Threat Trend Report on APT Groups

Purpose and Scope APT cases disclosed in September 2026 demonstrate that attacks have evolved to exploit the developer ecosystem, cloud services, and network management infrastructure as trust layers. Legitimate software installers, GitHub repositories, Microsoft 365, OneDrive, Telegram, Nostr, routers, and authentication servers were all included in the attack chain. Key Trends Supply chain attacks have […]

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September 2026 Threat Trend Report on APT Groups

Purpose and Scope APT cases disclosed in September 2026 demonstrate that attacks have evolved to exploit the developer ecosystem, cloud services, and network management infrastructure as trust layers. Legitimate software installers, GitHub repositories, Microsoft 365, OneDrive, Telegram, Nostr, routers, and authentication servers were all included in the attack chain. Key Trends Supply chain attacks have […]

Analysis of the Infrastructure of ARTEX, a Chinese AI Penetration Testing Tool #4 – The Birth of Copy Cat

Key Summary Since the original ARTEX GitHub repository disappeared, there has been an increase in independent distributions and customized instances based on the existing ARTEX codebase. These distributions are being redistributed with the product name, UI, filesystem structure, agent settings, and language modified, while retaining traces of ARTEX. Key Observations In several instances, ARTEX was […]

An Analysis of Suo5-Based Tunneling and Pivoting Attack Techniques Through Case Studies

Overview. This report summarizes cases in which Suo5 (an HTTP/HTTPS-based tunneling tool) was exploited for pivoting—a technique used to expand the scope of an attack to other systems or networks by passing through a system that has already been compromised—by using compromised web servers as relay points to access internal networks for lateral movement. It […]

September 2026 Dark Web Breach Incident Trend Report

Note The September 2026 Dark Web Breach Incident Trend Report focuses on data breach cases and the sale of initial access credentials posted on the deep web and dark web forums. The report explicitly states that the accuracy of some of its content cannot be fully verified due to the nature of the sources. Major […]

September 2026 Dark Web Issue Trend Report

Note The September 2026 Dark Web Issue Trend Report summarizes major issues that occurred on the deep web and dark web. However, the report notes that due to the nature of the sources, it may be difficult to fully verify the accuracy of some information. Major Issues The official launch of a new dark web […]

September 2026 Dark Web Threat Actor Trend Report

Note The September 2026 Dark Web Threat Actor Trend Report focuses on threat actors active on the deep web and dark web, as well as publicly reported cyberattack incidents. It is noted that the factual accuracy of some content cannot be independently verified. Major Issues Some hacktivist groups claimed responsibility for DDoS attacks targeting the […]