Some of the early adopters of this variation of the technique  were found to deliver Zloader  and Dridex  . Although Microsoft Excel still supports Excel 4.0 (XLM) macros, we encourage you to migrate them to the latest version of Microsoft Visual Basic for Applications (VBA). Migrating your macros lets you take advantage of the improvements to the VBA programming object model. If you decide you’re not ready to migrate, you can still run Excel 4.0 macros.
cytop 04:41 PM 12- Jul 13, 2020 The Excel 4.0 macros embedded inside the malicious attachments were capable of downloading the Avaddon ransomware sample directly, Jul 3, 2020 Ransomware criminals are still using malicious Excel 4.0 macros in campaigns. This week, Microsoft's security intelligence team noted that May 6, 2020 In this blog, we dissect a novel and stealthy Excel Macrosheet fueled facet of Excel Spreadsheets, Excel 4.0 macros aka XLM macros. When a spreadsheet contains Excel 4.0 macros, you will get output like in the screenshot above: There's a hidden Excel 4.0 macro sheet; There's Aug 19, 2018 With Excel 2011, you can continue to use and maintain Excel 4.0 macros (XLM macros) that have not been upgraded to Visual Basic® for May 9, 2019 Other recent campaigns delivering this malware variant have used a technique that leverages the still functional Excel 4.0 sheet-style macros to Dec 3, 2018 This is precisely what's happening with Excel 4.0 macros. While VBA is a well- known vehicle for malicious macros, one that's protected against May 4, 2020 I downloaded this malicious excel file on my VM for malware analysis. OLEVBA.
 This style of macro predates the also commonly abused Visual Basic for Applications (VBA) macros. Some of the early adopters of this variation of the technique  were found to deliver Zloader  and Dridex  . Excel 4.0 Macro Functions Reference A COMPREHENSIVE LIST OF MICROSOFT EXCEL 4.0 MACRO FUNCTIONS Excel 4.0 Macro Functions. Before VBA there were XLM macros.
How to create a XLM (Excel 4.0) Macro. Once you have the output file from EXCELntDonut, open the output file in a text editor and copy the entirety of it (Ctrl-A, Ctrl-S). Open up Excel on a Windows VM, right-click on "Sheet 1" and select "Insert".
This policy setting specifies the behavior for both the VBA and Excel 4.0 (XLM) runtime scan features.
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Here is a unhidden example. These macros are assoiciated with Excel 97-2003 Workbook .XLS files and are still supported by the latest versions of MS Excel.
This integration, an example of the many security features releas
XLMMacroDeobfuscator. XLMMacroDeobfuscator can be used to decode obfuscated XLM macros (also known as Excel 4.0 macros).
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This format is used a lot in the recent years as it is considered to be less detected by AV, also it is not processed by AMSI. I improved MacroPack Pro to support In this article. Returns a Sheets collection that represents all the Microsoft Excel 4.0 macro sheets in the specified workbook. Read-only.
Open up Excel on a Windows VM, right-click on "Sheet 1" and select "Insert".
The Excel 4.0 macros (XLM) feature was introduced in Excel version 4.0 way back in 1992.  This style of macro predates the also commonly abused Visual Basic for Applications (VBA) macros. Some of the early adopters of this variation of the technique  were found to deliver Zloader  and Dridex  .