September 2025 Security Issues in Korean & Global Financial Sector
This report comprehensively covers real cyber threats and security issues that have occurred in financial corporations both in Korea and abroad. The post includes analysis of malware and phishing cases distributed to the financial sector, the top 10 malware strains targeting the financial sector, and statistics on the leaked Korean
September 2025 Threat Trend Report on Ransomware
This report provides information on the number of systems affected during the month of September 2025, statistics related to the DLS-based ransomware, and key ransomware issues from around the world. Below is a summary of the report. The statistics on the number of ransomware samples and affected systems are
September 2025 Trends Report on Phishing Emails
This report provides the statistics, trends, and case information on the distribution quantity, attachment-based threats, and phishing emails collected and analyzed for a month in September 2025. Below is a portion of the statistics and cases included in the original report. 1) Statistics of phishing email threats In September 2025,
September 2025 Infostealer Trend Report
This report provides statistics, trends, and case information on Infostealer, including distribution volume, distribution methods, and disguises based on the data collected and analyzed in August 2025. The following is a summary of the original report. 1) Data Source and Collection Methods AhnLab SEcurity intelligence Center (ASEC) operates
Statistics Report of Malware Targeting Linux SSH Servers in Q3 2025
AhnLab SEcurity intelligence Center (ASEC) is using a honeypot to respond to and categorize brute-force and dictionary attacks that target poorly managed Linux SSH servers. This post covers the status of the attack sources identified in logs from the third quarter of 2025 and the statistics of attacks performed by
Statistics Report on Malware Targeting Windows Database Servers in Q3 2025
AhnLab SEcurity intelligence Center (ASEC) utilizes the AhnLab Smart Defense (ASD) to categorize and respond to attacks targeting Windows-based MS-SQL and MySQL servers. This report will cover the current state of damage to MS-SQL and MySQL servers that became attack targets based on the logs discovered in the third quarter
Bypassing Mark of the Web (MoTW) via Windows Shortcuts (LNK): LNK Stomping Technique
Overview While Windows shortcut (LNK) files are designed for user convenience, they have long been exploited as initial access vectors by threat actors. Since Microsoft strengthened its macro-blocking policies in 2022, attackers have increasingly turned to alternative formats such as ISO, RAR, and LNK files in their attacks. LNK files
August 2025 Trends Report on Phishing Emails
This report provides the distribution quantity, statistics, trends, and case information on phishing emails and attachments collected and analyzed over the course of a month in August 2025. The following are some statistics and cases included in the original report. 1) Statistics of Phishing Email Threats In August 2025, the
August 2025 Threat Trend Report on Ransomware
This report provides the statistics and major ransomware-related issues in Korea and worldwide, as well as the number of affected systems and ransomware cases based on Dedicated Leak Sites (DLS) over the course of August 2025. Below is a summary of the report. Disclaimer: The number of ransomware samples
August 2025 Infostealer Trend Report
This report provides statistics, trends, and case information on Infostealer, including distribution volume, distribution methods, and disguises based on the data collected and analyzed in August 2025. The following is a summary of the original report. 1) Data Source and Collection Methods AhnLab SEcurity intelligence Center (ASEC) operates
