Phishing Script File Breaching User Information via Telegram Being Distributed Posted By suuzzane , September 8, 2023 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 order_20230831.html Salbo_PO_20230823.pdf.html WoonggiOrder-230731.pdf.html PO_BG20231608-019.html ○○○ Pharma.pdf.html DH○_BILL_LADING_DOCUMENT_RECEIPT.html _Purchase Order Received from ○○○ Cosmetics_msg (email) BL_148200078498.html En○○○ Purchase Order.html Sung○○ BioX_New PO.pdf.html As shown in Figure 1 below, a blurred image…
Distribution of Backdoor via Malicious LNK: RedEyes (ScarCruft) Posted By yeeun , September 6, 2023 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 out additional malicious behaviors. The threat actor has been distributing the confirmed LNK file on a regular website by uploading it alongside malware within a compressed file. The malicious LNK…
Tracking Fileless Malware Distributed Through Spam Mails Posted By ohmintaek , September 4, 2023 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 will explain the distribution process flow from the spam mail to the final binary, as well as the techniques employed. Figure 1 shows the main text of the spam mail…
Analysis of Andariel’s New Attack Activities Posted By Sanseo , August 31, 2023 Contents1. Past attack cases…. 1.1. Cases of Innorix Agent abuse…….. 1.1.1. NukeSped variant – Volgmer…….. 1.1.2. Andardoor…….. 1.1.3. 1th Troy Reverse Shell…. 1.2. Cases of attacks against Korean corporations…….. 1.2.1. TigerRat…….. 1.2.2. Black RAT…….. 1.2.3. NukeSped variants2. Cases of recent attacks…. 2.1. Cases of Innorix Agent abuse…….. 2.1.1. Goat RAT…. 2.2. Cases of attacks against Korean corporations…….. 2.2.1. AndarLoader…….. 2.2.2. DurianBeacon3. Connections to recent attack cases4. Connections to past attack cases of the Andariel group5. Conclusion The Andariel threat group…
Analysis of MS-SQL Server Proxyjacking Cases Posted By Sanseo , August 25, 2023 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 brute force or dictionary attacks. If successful, they install malware on the infected system. The threat actors have been installing LoveMiner on MS-SQL servers for quite some time, and their…
