Downloading oscdimg.exe from Microsoft

In their typical fashion, unless you know what you're doing, Microsoft made it incredibly difficult to get your hands on a simple basic executable, that they should by all means provide as an easily accessible download, since it's one of the basic utility you may want to have at hand to create an ISO from a bunch of files and directory.

Well, we know what we're doing, which is to use a very handy technique that we picked up from actual malware, so, from PowerShell:

 
curl.exe -L -A "Microsoft-Symbol-Server/10.0.0.0" https://msdl.microsoft.com/download/symbols/oscdimg.exe/688CABB065000/oscdimg.exe -o oscdimg.exe
 

There. Now you have oscdimg and you can get on with your life without having to download gigabytes of extra garbage.

Oh and to create an ISO using a Windows command prompt from this very handy tool: 

 
oscdimg -g -h -k -m -u2 -udfver102 -l"My Image" C:\tmp\image\ C:\tmp\image.iso
 

What, I'm repeating myself? No I'm not repeating myself.
What, I'm repeating myself?

Oh, and since I am feeling generous today, I might as well provide you with a Python script that allows you to generate the URL on your own, from any Microsoft PE executable: 

#!/bin/env python3

# This script generates the debug server URL from a Microsoft PE executable, which
# then allows you to download it directly from Microsoft. Use this URL in:
#
#   curl.exe -L -A "Microsoft-Symbol-Server/10.0.0.0" <URL> -o <EXE_NAME>

import os
import sys
import pefile

def build_symbol_server_url(pe_path):
    # Get the filename
    exe_name = os.path.basename(pe_path)
    
    # Load the PE file
    pe = pefile.PE(pe_path)
    
    # Extract TimeDateStamp and SizeOfImage
    time_date_stamp = pe.FILE_HEADER.TimeDateStamp
    size_of_image = pe.OPTIONAL_HEADER.SizeOfImage
    
    # Build the hex part (TimeDateStamp: 8 hex digits, SizeOfImage: uppercase hex, no leading zeros removed)
    hex_part = '{:08X}{:X}'.format(time_date_stamp, size_of_image)
    
    # Construct the URL
    url = f"https://msdl.microsoft.com/download/symbols/{exe_name}/{hex_part}/{exe_name}"
    return url

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print(f"Usage: {sys.argv[0]} <path_to_pe_file>")
        sys.exit(1)
    pe_path = sys.argv[1]
    try:
        url = build_symbol_server_url(pe_path)
        print(url)
    except Exception as e:
        print(f"Error: {e}")
        sys.exit(1)