Tracking and Responding to AgentTesla Using EDR
AhnLab Security Emergency response Center (ASEC) has been uploading a summary of weekly malware statistics every week. https://asec.ahnlab.com/en/53647/ This post will cover how EDR is used to detect, track, and respond to AgentTesla, an Infostealer continuously being distributed among the malware mentioned in the post above. AgentTesla is an Infostealer
Types of Recent .NET Packers and Their Distribution Trends in Korea
0. Overview This post is a summary of the TI report, ‘Report on the Trends and Types of Recent .NET Packers.’ Please refer to the report in the hyperlink for more details on the topic. Recently, packers made with .NET are being found in various places both in
AgentTesla Being Distributed via VBS
The ASEC analysis team has recently identified that AgentTesla is being distributed through malicious VBS. The script file has multiple codes that have been obfuscated multiple times. AgentTesla has been found to be distributed last May through a Windows Help file (*.chm), and it seems that its distribution method is
Malware Being Distributed by Disguising Itself as Icon of V3 Lite
The ASEC analysis team has discovered the distribution of malware disguised as a V3 Lite icon and packed with the .NET packer. The attacker likely created an icon that is almost identical to that of V3 Lite to trick the user, and AveMaria RAT and AgentTesla were discovered during the
AgentTesla Being Distributed Through Windows Help File (*.chm)
The ASEC analysis team recently discovered AgentTesla being distributed with a new method. Previously, AgentTesla discussed in multiple ASEC blog posts was distributed by the malicious VBA macro inside PowerPoint files (*.ppt). However, the new method uses Windows Help files (*.chm) to run powershell commands. AgentTesla Being Distributed via More
AgentTesla Being Distributed via More Sophisticated Malicious PowerPoint Files
The ASEC analysis team has introduced malicious PowerPoint files that have been continuously distributed since last year. Recently, the team has discovered that various malicious features were added to the script that is run in the malicious PowerPoint file. The method the malicious file is run remains the same as
Malicious PowerPoint Files Constantly Being Distributed
On April 2021, the ASEC analysis team introduced the malware delivered via PowerPoint files attached to email in the ASEC blog. The team has found continuous malicious activities that use PPAM files in the form of PowerPoint and thus is sharing them. When a macro included in the PowerPoint is
