 I have a new option in my olidum tool. The extra option here, extra, allows you to add extra information about the streams found in the olifiers by specifying yourself via variables what information you want like MD5, but also SHA-1, SHA-256, Entropy and a lot more data. And I also plan to use this extra option to integrate this in my different dump tools. So let's have a look here how it looks in olidump. So when I run olidump on this spreadsheet here, I have an overview of the streams. And now I can say, extra, I want to see the MD5 hash. So the variable for MD5 hash is %MD5%. And when you do this, the MD5 hash for the content of each stream will be appended at the end of the line for that stream. Now the variables that you can use, you can find them in the man page. Let's do olidump man and pipe this. And now search for MD5, %MD5. Okay, and here you have all the variables. So you have the index of the stream, you have the microindicator, the length of the stream, the name of the stream. And then you have the MD5 hash, the SHA1 hash, the SHA256 hash, the entropy, the head of the stream in hexadecimal. So to see the 21st bytes in hexadecimal, to see the 21st bytes in ASCII, head-axe-ASCII. Tail does the same as head, but for the last 20 bytes. And then you can also have an histogram and bytes test. So in my example here I used MD5, but I can add more than one. For example SHA256, like this. And then I have the two hashes following the info line. I can add text like this, MD5 SHA256, like this. And then you can see here in the output MD5 with MD5 value and SHA256 with SHA256 value. I support two escape characters, that's the new line and the tab. So let's add a new line here and a new line here, like this. And then you have each line and then a new line here with MD5 and with SHA256 it makes it probably a bit more readable. Now let's go back here to this one. So here the information is appended to the line. Now if you proceed, if you start the parameter that you pass to extra, so the string with an exclamation mark here, then it will replace the complete output file, like this. So you just have the MD5 and SHA256 and nothing more. Of course now this is not that informational because you don't see what index we are talking about. So that is something you can add. So let me simplify this by just showing the MD5 and here the index of the stream, like this. And you can also add the name at the end, like this. So this gives you more flexibility for people who ask me to add some extra information. Now you can show yourself what extra information you want and also in what order and how you want to see it. Now if you want to always have that extra parameter in your OleDump runs, so when you execute OleDump, you can define an environment variable OleDump underscore extra. And when that OleDump extra environment variable is defined and it must have the same syntax as the parameter to the extra, then this will be used to produce the output. So let's do this. OleDump extra equals percent MD5 percent. And now when I run OleDump without any parameter, you will see that the MD5 hash is appended. So this allows you to change the output of OleDump as you wish and also to have this always when you run OleDump. When you have a variable, the OleDump extra variable defined and you also use the parameter, then the option takes precedence. So here I will ask for the SHA1 and you see that I have the SHA1 but not the MD5. While if I call it again without any parameters, I have the MD5 because that is what is defined in the variable.