Guide to Prevent Execution of Excel 4.0 Macro Malware – Microsoft Office 365 Product
Excel 4.0 macro (XLM) malware is an attack method that uses Microsoft Office Excel files, and it has been established as the new document malware flow following VBA (Visual Basic Application). Excel 4.0 macro malware uses the ‘macro sheet’ feature in Excel. Each cell in the Excel sheet is composed
Distribution of Malicious Excel Files Targeting Companies Amid Black Friday Season
Malicious Excel files are being distributed to companies amid the Black Friday season. The email confirmed today (Nov 25th) is an email reported by the attacked company in Korea. Attached to the email is an Excel file that contains an Excel 4.0 Macro (XLM) macro sheet in the form of
Analysis of Dridex Malware Distribution Method Armed with Bypass Detection
Dridex, also known as Cridex and Bugat, is a typical info-stealing malware that steals financial information. It is distributed on a massive scale by cybercrime organizations and it mainly uses macros within Microsoft Office Word or Excel document files that are included in spam mails. The most noticeable characteristic of
![[Threat Analysis] CLOP Ransomware that Attacked Korean Distribution Giant](https://asec.ahnlab.com/wp-content/uploads/2021/01/15_cyber-threat_01.png)
[Threat Analysis] CLOP Ransomware that Attacked Korean Distribution Giant
In November last year, there was a case that shocked not only the security industry, but also all of the Korean industries. The system of E-Land Group, the distribution giant, was infected by the ‘CLOP Ransomware.’ According to the press report that quoted an associate of the company, over half
