July 2026 Threat Trend Report on APT Attacks (South Korea)

July 2026 Threat Trend Report on APT Attacks (South Korea)

Overview AhnLab monitored APT (Advanced Persistent Threat) attacks targeting entities in Korea using its own infrastructure. This report summarizes the classification, statistics, and functional characteristics for each type of domestic APT attacks identified during the month of July 2026. Trends of APT Attacks in South Korea Most APT attacks detected in South Korea were distributed […]

July 2026 Threat Trend Report on Ransomware

July 2026 Threat Trend Report on Ransomware

Purpose and Scope The July 2026 Threat Trend Report on Ransomware summarizes major Korean & global ransomware issues based on statistics regarding the quantity of new ransomware samples, the number of compromised systems, and statistics on targeted businesses. Statistics on targeted businesses were compiled based on information published on DLS (Dedicated Leak Sites, also referred […]

July 2026 Threat Trend Report on APT Groups

July 2026 Threat Trend Report on APT Groups

Purpose and Scope The July 2026 Threat Trend Report on APT Groups summarizes the trend in which state-sponsored threat actors and financially motivated attackers are employing a combination of supply chain attacks, account takeovers, cloud breaches, and social engineering techniques. Key targets include Microsoft 365, webmail accounts, cloud infrastructure, GitHub and development environments, VPN and […]

Beware of phishing emails disguised as requests to review quotes (PhantomStealer)

Beware of phishing emails disguised as requests to review quotes (PhantomStealer)

The AhnLab SEcurity intelligence Center (ASEC) recently identified a phishing email campaign that disguised itself as a request to review a quote. The threat actor impersonated a sales team member at a specific overseas company and, by claiming that a previous quote needed to be revised and product versions verified, tricked recipients into opening the […]

July 2026 Infostealer Trend Report

July 2026 Infostealer Trend Report

Content This report summarizes the distribution channels, number of Infostealers, number of detections, and target companies that were disguised as Infostealers collected during the month of July 2026. It was compiled based on results from AhnLab SEcurity intelligence Center (ASEC)’s automated data collection system, email honeypots, and automated C2 analysis, as well as diagnostic logs […]

Attack Cases for Domestic Web Servers Running SoftEther VPN in Korea

Attack Cases for Domestic Web Servers Running SoftEther VPN in Korea

The AhnLab SEcurity intelligence Center (ASEC) recently identified attack cases in which attackers targeted web servers in Korea to install SoftEther VPN. Attack cases involving the installation of SoftEther VPN, an open-source VPN, were previously discussed in the 2024 ASEC blog post titled “Analysis of Attack Cases Targeting ERP Servers in Korea to Install SoftEther […]

Security Issues in the Korean & Global Financial Sector in July 2026

Security Issues in the Korean & Global Financial Sector in July 2026

Statistics on Malware Distributed to the Financial Sector In Attack Stage 1, phishing (a technique that tricks users into opening malicious links or attachments) had the highest rate at 1.7, Down from 2.3 The previous month. In Attack Stage 2, Dropper/Downloader (a type that downloads additional malware) was the most prevalent at 1.7, Up from […]

July 2026 Threat Trend Report on APT Attacks (South Korea)

Overview AhnLab monitored APT (Advanced Persistent Threat) attacks targeting entities in Korea using its own infrastructure. This report summarizes the classification, statistics, and functional characteristics for each type of domestic APT attacks identified during the month of July 2026. Trends of APT Attacks in South Korea Most APT attacks detected in South Korea were distributed […]

July 2026 Threat Trend Report on Ransomware

Purpose and Scope The July 2026 Threat Trend Report on Ransomware summarizes major Korean & global ransomware issues based on statistics regarding the quantity of new ransomware samples, the number of compromised systems, and statistics on targeted businesses. Statistics on targeted businesses were compiled based on information published on DLS (Dedicated Leak Sites, also referred […]

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July 2026 Threat Trend Report on APT Attacks (South Korea)

Overview AhnLab monitored APT (Advanced Persistent Threat) attacks targeting entities in Korea using its own infrastructure. This report summarizes the classification, statistics, and functional characteristics for each type of domestic APT attacks identified during the month of July 2026. Trends of APT Attacks in South Korea Most APT attacks detected in South Korea were distributed […]

July 2026 Threat Trend Report on Ransomware

Purpose and Scope The July 2026 Threat Trend Report on Ransomware summarizes major Korean & global ransomware issues based on statistics regarding the quantity of new ransomware samples, the number of compromised systems, and statistics on targeted businesses. Statistics on targeted businesses were compiled based on information published on DLS (Dedicated Leak Sites, also referred […]

July 2026 Threat Trend Report on APT Groups

Purpose and Scope The July 2026 Threat Trend Report on APT Groups summarizes the trend in which state-sponsored threat actors and financially motivated attackers are employing a combination of supply chain attacks, account takeovers, cloud breaches, and social engineering techniques. Key targets include Microsoft 365, webmail accounts, cloud infrastructure, GitHub and development environments, VPN and […]

July 2026 Infostealer Trend Report

Content This report summarizes the distribution channels, number of Infostealers, number of detections, and target companies that were disguised as Infostealers collected during the month of July 2026. It was compiled based on results from AhnLab SEcurity intelligence Center (ASEC)’s automated data collection system, email honeypots, and automated C2 analysis, as well as diagnostic logs […]

July 2026 Dark Web Breach Incident Trend Report

Note The July 2026 Dark Web Breach Incident Trend Report was compiled based on data breach cases posted on deep web and dark web forums. Due to the nature of some posts, it is difficult to fully verify their accuracy; some posts related to South Korea included AI-generated false data or cases where it could […]

July 2026 Dark Web Threat Actor Trend Report

Note The July 2026 Dark Web Threat Actor Trend Report focuses on trends among threat actors—including hacktivists—active on the deep web and dark web. It is explicitly noted that the factual accuracy of some content could not be verified. Major Issues Handala claimed to have compromised the core infrastructure of an Internet service provider in […]