Phishing Script File Breaching User Information via Telegram Being Distributed
AhnLab Security Emergency response Center (ASEC) has recently identified circumstances of multiple phishing script files disguised as PDF document viewer screens being distributed as attachments to emails. A portion of the identified file names are as below, and keywords such as purchase order (PO), order, and receipt were used. New
RedEyes (ScarCruft)’s CHM Malware Using the Topic of Fukushima Wastewater Release
The AhnLab Security Emergency response Center (ASEC) analysis team has recently discovered that the CHM malware, which is assumed to have been created by the RedEyes threat group, is being distributed again. The CHM malware in distribution operates in a similar way to the “CHM Malware Disguised as Security Email
Distribution of Backdoor via Malicious LNK: RedEyes (ScarCruft)
AhnLab Security Emergency response Center (ASEC) has confirmed that malware [1], which was previously distributed in CHM format, is now being distributed in LNK format. This malware executes additional scripts located at a specific URL through the mshta process. It then receives commands from the threat actor’s server to carry
Tracking Fileless Malware Distributed Through Spam Mails
AhnLab Security Emergency response Center (ASEC) has discovered a phishing campaign that propagates through spam mails and executes a PE file (EXE) without creating the file into the user PC. The malware attachment in the hta extension ultimately executes malware strains such as AgentTesla, Remcos, and LimeRAT. This blog post
Analysis of MS-SQL Server Proxyjacking Cases
AhnLab Security Emergency response Center (ASEC) has recently discovered cases of proxyjacking targeting poorly managed MS-SQL servers. Publicly accessible MS-SQL servers with simple passwords are one of the main attack vectors used when targeting Windows systems. Typically, threat actors target poorly managed MS-SQL servers and attempt to gain access through
Hakuna Matata Ransomware Targeting Korean Companies
Recently, AhnLab Security Emergency response Center (ASEC) has identified that the Hakuna Matata ransomware is being used to attack Korean companies. Hakuna Matata is a ransomware that has been developed relatively recently. The first report related to Hakuna Matata was identified on July 6th, 2023 on Twitter. [1] On July
GuLoader Malware Disguised as Tax Invoices and Shipping Statements (Detected by MDS Products)
AhnLab Security Emergency response Center (ASEC) has identified circumstances of GuLoader being distributed as attachments in emails disguised with tax invoices and shipping statements. The recently identified GuLoader variant was included in a RAR (Roshal Archive Compressed) compressed file. When a user executes GuLoader, it ultimately downloads known malware strains
V3 Detects and Blocks Magniber Ransomware Injection (Direct Syscall Detection)
The Magniber ransomware is consistently being distributed at high volumes. It has been distributed through the IE (Internet Explorer) vulnerability for the past few years but stopped exploiting the vulnerability after the support for the browser ended. Recently, the ransomware is distributed with filenames disguised as a Windows security update
Changes Detected in CHM Malware Distribution
AhnLab Security Emergency response Center (ASEC) has previously covered a CHM malware type impersonating Korean financial institutes and insurance companies. Recently, the execution method of this malware type has been changing every week. This post will cover how the changed execution processes of the CHM malware are recorded in AhnLab’s EDR
Distribution of Malware Disguised as Coin and Investment-related Content
AhnLab Security Emergency response Center (ASEC) has recently confirmed the distribution of malware disguised with coin exchange and investment-related topics. The malware is being distributed in the form of an executable and a Word file. Based on the User-Agent name used in the malware, it is suspected that it was
