Chrome users who want to pick the download folder instead for downloads need to change that behavior in the options. The new attack, described in detail on the Defense Code website, combines Chrome's automatic download behavior with Windows Explorer Shell Command File files that have the.
The aging format is a plain text file that includes instructions, usually an icon location and limited commands. What's particularly interesting about the format is that it may load resources from a remote server. Even more problematic is the fact that Windows will process these files as soon as you open the directory they are stored in, and that these files appear without extension in Windows Explorer regardless of settings.
This means that attackers could easily hide the file behind a disguised filename such as image. The attackers use a SMB server location for the icon. What happens then is that the server requests authentication, and that the system will provide that. Regarding password cracking feasibility, this improved greatly in the past few years with GPU-based cracking.
That's 1. With hundreds of millions leaked passwords resulted from several breaches in the past years LinkedIn, Myspace , wordlist rule-based cracking can produce surprising results against complex passwords with more entropy. The situation is even worse for users on Windows 8 or 10 machines who authenticate with a Microsoft account, as the account will provide the attacker with access to online services such as Outlook, OneDrive, or Office if used by the user.
There is also the chance that the password is reused on non-Microsoft sites. One option that Chrome users have is to disable automatic downloads in the web browser. This prevents drive by downloads, and may also prevent accidental downloads of files. While you add a layer of protection to Chrome's handling of downloads, manipulated SCF files may land in different ways on target systems.
One option that users and administrators have is to block ports used by SMB traffic in the firewall. Microsoft has a guide up that you may use for that. The company suggests to block communication from and to the Internet to the SMB ports , , and Blocking these ports may affect other Windows services however such as the Fax service, print spooler, net logon, or file and print sharing.
Which password would a Windows 7 system send? The log on password to authentificate into Windows? It could be the same issue that I am not alllow to change this parameters. Thanks — Dr. Fabien Tarrade. You could try options. Hi Florent, I gave a try and it had no impact. I will try on another Laptop with these restriction to see if this works.
I manage to solve most of the issue with. I try to play with. If a PDF should be downloaded than this line is important in options: "plugins. Show 2 more comments. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
Email Required, but never shown. The Overflow Blog. Ok, I'll try that one, it seems to let you define filters that let you select which folder do you want to save a file to, depending on the origin URL or the type of the file.
But I don't see any "overwrite older file" option anywhere.. I get the feeling that what is happening here is not so much a Firefox issue, but more of an Operating System issue.
You can set how your OS reacts to the overwriting of files by going into your OS's settings area. Not knowing which one you are using I can't advise where to find them, but this is an OS setting. FWIW, I concur. This behavior appeared to me when I started using linux couple years ago, not FF related at all. I've just learned to live with it - its actually somewhat useful and easy to get used to.
I've never looked for a setting to change it, though its there somewhere, I'm sure. Must be somewhere in windoze as well - I don't ever remember addressing it way back when - sounds like an explorer setting Oh no, I think it isn't. Try it, download any file 2 times or more and see it for yourself, in ubuntu, solaris, mac, or windows Click on "Options" in the Automatic Save Folder extension. Then select "Options" tab. Uncheck the first box "Show Yeah, fine, but I don't really want to change it's name or where to download it to.
I want the normal behavior not asking where to download nor showing the file explorer and downloading to the set directory. BUT overwriting any existing files with the same filename. Am I not being understood? I understand you. The only way I can think of to do what you want is with a macro that invokes the download and answers the prompts to over-write the file and perhaps other things depending on your situation.
You ARE being understood and the point of suggesting the extension should have been understood that it cannot be done natively in Firefox. At least on Windows, it isn't an OS issue. Browse All Mac Articles Do I need one? Browse All Android Articles Browse All Smart Home Articles Customize the Taskbar in Windows Browse All Microsoft Office Articles What Is svchost. Browse All Privacy and Security Articles Browse All Linux Articles Browse All Buying Guides. Best iPhone 13 Pro Case.
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