AhnLab SEcurity intelligence Center (ASEC) has recently observed an increase in attack cases exploiting Remote Monitoring and Management (RMM) tools. Whereas attackers previously exploited remote control tools during the process of seizing control after initial penetration, they now increasingly leverage RMM tools even during the initial distribution phase across diverse attack scenarios. This article covers […]

This report comprehensively covers real-world cyber threats and security issues that have occurred in the financial industry in Korea and worldwide. It includes an analysis of malware and phishing cases targeting the financial industry, a list of the top 10 malware strains targeting the industry, and statistics on the sectors of Korean accounts leaked on […]

AhnLab SEcurity intelligence Center(ASEC) is monitoring Proxyjacking attacks and continuously disclosing distribution cases and IoCs identified in South Korea. The threat actor Larva‑25012, known for deploying Proxyware, has recently begun using malware disguised as a Notepad++ installer. In addition, the attacker is actively changing techniques to evade detection—such as injecting Proxyware into the Windows Explorer […]

  Key APT Group Trends by Region   1) North Korea   North Korean state‑sponsored threat groups have increasingly relied on fake IT employment schemes, actively exploiting legitimate hiring platforms and fabricated identities to infiltrate corporate environments. These actors frequently take advantage of remote‑work infrastructures to obtain elevated access and conduct long‑term social engineering operations […]

AhnLab SEcurity intelligence Center (ASEC) has confirmed the RAT distribution of the Remcos RAT targeting users in South Korea. While the original distribution pages remain unknown, the malware appears to masquerade as VeraCrypt installers or software associated with illegal gambling websites.   1. Malware Distribution One of the initial malware samples displays an interface labeled […]

This report provides statistics, trends, and case information on Infostealer malware collected and analyzed during the month of December 2025, including distribution volume, distribution channels, and disguising techniques. The following is a summary of the report.   1) Data Source and Collection Method  The AhnLab SEcurity intelligence Center (ASEC) operates various systems to automatically collect […]

Overview   AhnLab monitoring APT (Advanced Persistent Threat) attacks in South Korea using its own infrastructure. This report covers the classification and statistics of APT attacks in South Korea that were identified over the course of one month in December 2025. It also provides an overview of the features of each attack type.    Figure 1. […]