He has also written for Healthcare IT Today, Ars Technica, Becker's Hospital Review, CSO Online, Securit圜urrent, 2600, and, amongst others, and has contributed to several books. Mitch has been a past speaker at multiple conferences including CircleCit圜on, Black Hat, HIMSS, BSides San Juan, multiple IEEE conferences, Purdue University CERIAS, IU, and the Biohacking and Recon villages at DEFCON. Many of his efforts have involved addressing systemic issues preventing customers from reporting in issues and contacting security. He has focused on building information security programs that address the needs of customers and team members for twelve years across multiple organizations. Microsoft Anti Ransomware bypass (not a vulnerabil.Mitch Parker is the CISO at IU Health and an adjunct lecturer in Health Informatics at IUPUI. I have notified to Microsoft on 23 January and on 31 I got this response

Notice that Office could be used to edit PDF files, Image files and others type of files not strictly related to Office documents Encrypt the new file as ransomware does.Then delete content of the original file or put a Ransomware note.Using Selection.Paste to put the content in another file outside protected folders.

Using Selection.Copy method to copy the content of a protected file.

In a environment with Office+Windows (the most common) Microsoft Anti Ransom is totally useless Using this technique an attacker could perform a Ransomware attack bypassing Windows Defender protection activating the native encryption feature of Microsoft Office. Why ? Because this code uses OLE Word Object to do the work, so in fact is Word who is doing the job :)

encrypt it with password 12345678 (using native Office Document protection).

Word = ('Word.Application')ĭoc = (filetoberansom) Filetoberansom = r'C:/Users/YJ/Documents/test.docx'

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