Downloaded scf file

IT Management. Project Management. Resources Blog Articles. Menu Help Create Join Login. SCF It's a framework that allow obtain and process properties Brought to you by: scfjava. Add a Review. The hash can then be cracked offline or used to impersonate the victim on a service, such as Microsoft Exchange, that accepts the same kind of NTLM-based authentication.

Google told Kaspersky's ThreatPost it is addressing this problem in Chrome. This affects Chrome for all versions of Windows, including Windows A second issue with Chrome is that it relies on Windows default behavior once the SCF file has been downloaded. As Stanovic points out, Chrome automatically downloads files that it deems safe.

This approach might be fine if the user needs to manually run the file, but in Windows the SCF file will trigger a request to authenticate to the attacker's SMB server as soon as the download directory is opened in Windows File Explorer. His tests of "several leading antivirus" found that none flagged the downloaded SCF files as dangerous. There is no such thing as a v2 hash. It grants access to the NTLM response. This is a far cry from the hash. That said, if the protocol is NTLM v1, this is horrific.

Even if the other browsers do not automatically download SCF files, how many average users even know that SCF files trigger this Windows behavior? This is definitely a problem for Windows to fix. Hi Shawn I touched base with the researcher and he responded with this feedback to your question: "I suppose it would protect you but that's not a good option for most users in networks or that use file shares at home, etc".

Good Question SMD. Once again, I've reached out to the author of the research and asked. Here is what he had to say. Here is some information which will get you started. This will either open it with matching application or Windows operating system will suggest you to look for an application for file extension SCF either on web or on local computer. If there is no application on your computer which can open SCF files you need to search on the internet which application can open SCF files.

What is SCF File? System File Checker is a utility in Windows that checks for problems with files on your computer. To run it, follow these steps:. Make sure you've installed the latest updates for Windows, and then restart your machine.

To find out more, read Update Windows. In the search box on the taskbar, type Command Prompt , and right-click or press and hold Command Prompt Desktop app from the list of results. Select Run as administrator , and then select Yes.