Windows XRM-MS Files: The Trustworthy-Looking NTLM Hash Leak You Didn’t See Coming!
Discover how an .xrm-ms file can serve as a Trojan horse, making NTLM Hash Disclosure as easy as pie. With just a click, these files prompt an outbound connection to a hacker’s domain, leaking NTLM hashes faster than you can say “Windows vulnerability.” Spoiler alert: Not even Outlook sees it coming.
Hot Take:
Well, well, well, it seems the Windows XRM-MS file type has decided to moonlight as a secret agent, sneakily leaking NTLM hashes like they’re going out of style. Who knew a digital license file would have dreams of becoming the next James Bond villain?
Key Points:
- Windows XRM-MS file type is linked to Microsoft’s licensing infrastructure.
- It can open in Internet Explorer or Edge, and injects XML stylesheets.
- Allows reference to attacker-controlled UNC paths, leading to NTLM hash leaks.
- Bypasses certain email security filters and shows no active content warnings.
- No CVE reference yet, and Microsoft considers it a “moderate spoofing” issue.
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