I have to extract files from a zip archive and after that process it.
The thing is that each archive will have it own manifest file, and I have to check if its valid. How can I firstly check the manifest file and processed only if its available and is valid?
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I write a application hide a of string within a .docx file.
A Docx file comprises of a collection of XML files that are contained inside a ZIP archive. So, My program treat that file like a zip file and hide secret string in it.
After research, I found a way to insert data to ZIP archive.
A Secret String is injected after a file section right before the 1st central directory header. After that, a pointer in an end of central directory record is updated to compensate the shift of the central directory header.
My output docx file work fine with typical file archivers (7-zip, WinRAR, File Roller, &c) or file managers (Windows Explorer).
But when I open my output docx file with Microsoft Word it said:
Here is link for input and output file
What step did I wrong or missing?
I uploaded files to LiveResponse library using https://github.com/MicrosoftDocs/microsoft-365-docs/blob/public/microsoft-365/security/defender-endpoint/live-response-library-methods.md API.
I overwrite specific file in mistake (and I have no local backup of this file), How can I recover the content of the file from the LiveResponse library before the overwrite?
When I get the list of the library files using GET /api/libraryfiles I got:
{"#odata.context":"https://api.securitycenter.microsoft.com/api/$metadata#LibraryFiles","value":[{"fileName":"script.ps1","sha256":"8b0....f1c63abad95d6bda","description":"1","creationTime":"2022-08-08T15:45:05.170374Z","lastUpdatedTime":"2022-08-08T15:45:05.170374Z","createdBy":"MyUser","hasParameters":false,"parametersDescription":null}
...
And I dont see any indication about the file history etc.
I'm looking for a tool that can extract files by searching aggressively through a ZIP archive. The compressed files are preceded with LFHs but no CDHs are present. Unzip outputs an empty folder.
I found one called 'binwalk' but even though it finds the hidden files inside ZIP archives it seems not to know how to extract them.
Thank You in advance.
You can try sunzip. It reads the zip file as a stream, and will extract files as it encounters the local headers and compressed data.
Use the -r option to retain the files decompressed in the event of an error. You will be left with a temporary directory starting with _z containing the extracted files, but with temporary, random names.
I am using Minizip API to zip and unzip file to and from my archive. I have a requirement to delete the zip entry from the zip as soon as i extract it.
if the zip archive has multiple zip entries , i am able to delete a particular zip entry soon as i extract it and then able to zip archive with the remaining zip entries. i am able to achieve this using a temp zip .
But when i have a single file inside the zip archive, i am only able to delete the zip after complete extraction....Can there be a optimize way for this situation where i can extract and delete the zip entry in chunks. there is no direct API's in minizip to delete, i am using raw write and read.
Thanks in advance,
JP
No, there is no way to delete part of a file in a ZIP archive, short of extracting the whole file and archiving the part you don't want. (Which doesn't make sense here, since you're already trying to extract the file!)
How would I add the contents of an entire directory to an already existing zip file using python? The directory to be added to the zip file will also include other folders as well and there will be duplicates in the zip file that will need to be overwritten. Any help would be appreciated. Thanks in advance!
P.S. If it is possible to zip the directory then combine both files that would also work.
Python's zipfile module allows you to manipular ZIP compressed archives. The ZipFile.namelist() method returns a list of files in an archive, and the ZipFile.write() method lets you add files to the archive.
z = zipfile.ZipFile('myfile.zip')
The os.walk method allows you to iterate over all the files contained in a directory tree.
for root, dirs, files in os.walk('mydir'):
for filename in files:
z.write(os.path.join(root, filename))
Replacing a file in an archive appears to be tricky; you can removed items by creating a temporary archive and then replacing the original when you're done as described in this question.
It might be easier just to call the zip command instead, but put these together and you should be able to get to where you want.