Home > Uncategorized > Analyzing E-mail .Msg files and Attachments without Outlook

Analyzing E-mail .Msg files and Attachments without Outlook

CYBER ARMS - Computer Security

I had a copy of an e-mail that had a virus in it that I wanted to analyze. The problem was that the Outlook e-mail message was in .msg format. My virtual machine that I was using to analyze malware was Windows XP based. The problem was that the included Outlook Express would not open the Outlook saved .msg file. And I did not want to install Outlook on the system.

So is there a way to read the file and recover the attachment without using Outlook?

Of course, like other Office file formats (like .docx) the .msg file is just zipped!

I tried several techniques to open the Outlook .msg file, even downloading an open source program that reads them. I could read the message but could not get to the attachment. And I needed the attachment so I could analyze it for malware. On a whim, I tried…

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Categories: Uncategorized
  1. Tzee
    March 26, 2014 at 8:32 pm

    How did you unzip the .msg file. I’m trying by renaming the .msg with a .zip extension and then clicking it in Windows Explorer. It works for .docx. When I try it with .msg I get an error popup: Windows cannot open folder. The Compressed (zipped) folder ‘C:\ … \temp\MyMail.zip’ is invalid.

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