SYMBEXCEL:AutomatedAnalysisandUnderstandingofMaliciousExcel4.0Macros

Ransomware attacks, for instance, represent one of the most devastating threats of the past few years, expected to inflict ... XL4 macros cannot reside in regular worksheets. Instead, they must be stored in specific Excel 4.0 macro sheets, one formula per cell. The execution of XL4 macros starts from a cell—called