Evolution of Excel 4.0 Macro Weaponization – Continued
Evolution of Excel 4.0 Macro Weaponization –…
Introduction The evolution of the Excel 4.0 (XL4) macro malware proceeds apace, with new variations and techniques regularly introduced. To understand the threat landscape, the VMware NSBU Threat Analysis Unit extended its previous research on XL4 macro malware (see the previous blog) to analyze new trends and techniques. Against analysis engines, the new samples have some novel evasion techniques, and they perform attacks more reliably. These variants were observed in June and July. Figure 1…Read More