Questions tagged [windows-10]

An operating system developed by Microsoft released July 2015 and designed to run across devices with multiple form factors - PC, tablet, smartphone, Xbox and HoloLens.

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18 views

New Win10 and Old YubiKey4; trying to configure GPG Sign for existing key

I have been using a YubiKey 4 to sign git commits for a few years on Ubuntu. I am setting up a new Windows10 machine and want to use the same signing key from Windows; however I cannot seem to point ...
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How can an open source software such as LibreOffice not even tell me about it spying on me? [closed]

I've had constant freezes of LibreOffice Writer (every single day, multiple times). I've tried asking about it to deaf ears, and looked through all the program options. While scanning through the ...
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Is it safe to run online, multi-person game as administrator on Windows 10?

The newly released computer game Genshin Impact must be run as administrator on Windows 10. Millions of people have downloaded this game. It runs on multiple platforms, however I assume that a ...
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43 views

Windows 10 IPSec VPN not respecting configured parameters (notably: encryption method)

I am currently trying to establish a VPN connection from my Windows 10 Enterprise 1909 to a remote VPN gateway, using the built-in Windows VPN / IPSec client. Since the UI does not provide all options ...
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1answer
105 views

How am I supposed to interpret a VirusTotal result of “some engines think this is malware”? [closed]

I just scanned another installer/EXE with VirusTotal. I've come to depend on this crappy service owned by the evil Google, in spite of its ambiguous messages and extremely confusing interface, because ...
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Are Chinese character registry entries evidence of malware? [duplicate]

I have googled the below and could not find clear answers, although other people in forums were guided through to either dead ends or evidence of corrupted registry entries. I am ignorant of registry ...
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Why does Windows not always force me to confirm my password when changing it?

If I can change my password with cmd net user example * without needing to confirm my old password, why, when I change my password in the usual way (via settings or control panel), do I need to ...
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1answer
185 views

Windows Certificates - where is private key located?

In Windows 10: When I load a certficate into the "Current User" store, it puts a private key file here: C:\Users\[userID-A]\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-xxx\...
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98 views

How am I supposed to check Defender's capability when it trusts me blindly after I mark a test malware file as “allowed”?

With enormous amounts of fighting with Windows/Microsoft Defender, I finally managed to download the "test virus" file from https://www.ikarussecurity.com/en/private-customers/download-test-...
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1answer
119 views

Why did my DoS attack fail against Windows 10?

I have multiple devices - a Samsung and a Lenovo tab, an Amazon Alexa, an HP laptop running Windows 7, and another running Windows 10. Bored, I tried to DoS my Windows 10 laptop using my Windows 7 ...
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1answer
128 views

What is “Your Phone” in Windows 10 Advanced Firewall?

I have an Outbound Rule in my firewall called "Your Phone". Settings: All programs. In Customize Application Package Settings, it has "Apply to app package..." set with a long ...
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Setup guide for Privileged Access Workstation on Windows 10

I am setting up a Privileged Access Workstation (PAW) to access a whitelist of websites. Currently I have been following this guide on Github by unassassinable and applying the latest Windows 10 ...
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3answers
243 views

IT department says our windows 10 server is 100% going to be hacked because of port-forwarding my software

We have a local virtual windows 10 server hosting some custom software. This VM is only hosting this service and nothing else. This software is made of: An ASP.Net core web app, public API, only ...
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1answer
64 views

How do you verify the key given by remmina (libfreerdp2)

This morning I took an update to remmina and started getting a "fingerprint changed" warning. When using xfreerdp (from freerdp-x11) I get they old key. The old key being 20 bytes and the new key ...
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1answer
283 views

Is Windows Sandbox a viable alternative to conventional VM solutions considering its design?

The idea of having a fast, disposable VM at the palm of my hand appeals to me very much. It makes adding an extra layer of security to any thing I want to do so easy - just launch the sandbox ...
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1answer
109 views

Should I worry about a cmd opening and typing “echo off”?

I some days see a cmd.exe opening and typing "echo off", then disappear. My computer is slow, but I'm not sure if a program running with first line "echo off" would be so slow as to let me see it ...
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what is an example of out of bounds read in order to leak sensitive information?

I Am trying to understand a little bit better behind the scenes on bypassing aslr by reading the bytes in the memory of a process, but how can I make an example of an info leak in WIN32? my code does ...
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174 views

Folder level encryption on a Windows 10 Pro laptop

Most of the stuff on my laptop is benign; and the hassle of full disk encryption is not worth it. On the other hand, one or two folders I would love to encrypt and password protect. What's the best ...
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TPM & Windows BitLocker: how does it work and is it secure?

When starting a BitLocker-encrypted machine with a TPM and Windows 10 installed, you aren't prompted to enter a decryption key. The system relies on Windows lockscreen for authentication instead. My ...
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FIDO2 Windows vs Linux

I am using a Yubikey 5C as a MFA & smartcard for various application. On my Windows 10 desktop I have set up a FIDO2 PIN - so if I would like to use it within Firefox for example, I have to enter ...
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1answer
63 views

How I can encrypt Windows if I use a SSD and HDD?

I need to encrypt my Windows Disks with full disk encryption. Windows is already installed and all drives have data. My Drives/Disks: 1 SSD - C: drive 1 HDD - D: drive and I have a drive where Linux ...
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1answer
71 views

Why do people warn of putting unknown USBs in your device [duplicate]

People keep saying never put a random USB in your device because it could ruin it with a virus. Hackers are able to program USBs to automatically run a virus when it is put in a device. So I decided ...
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Windows 10 encryption virus: Extension .lktja99122 [duplicate]

My Windows 10 Surface Laptop 1 i7 has been affected by a ransomware that says it has encrypted my hard drive. Here is what the README says: ---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your ...
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Which Windows 10 login protects secure data?

Windows can protect sensitive data using CryptProtectData, which according to the Windows docs, encrypts data for a given program using the user's login password. But Windows 10 has several forms of ...
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1answer
84 views

Finding mechanism of unauthorized data access on OneDrive/Windows 10

An ex-girlfriend has demonstrated an ongoing ability to access files stored only on my Windows 10 x64 PCs and Microsoft OneDrive. How can I find or trace the mechanism by which she is doing this? ...
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269 views

System Process PID 4 Attempt to connect to Public IP using port 445

I was cross checking my environment and i found that System process PID 4 establishing Outbound connection to public IP using Port 445 is that a normal behavior? OS: Windows 10 1909 System PID 4 ...
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31 views

Implied network privileges on Windows 10 apps?

If an app in the Microsoft Store only has the "userNotificationListener" permission listed, will it be able to send data over the internet? On https://support.microsoft.com/en-us/help/10557/windows-...
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1answer
30 views

Can programs see your windows account name given admin rights?

The windows account name can be seen as one the folders in C:\Users. Assuming you changed your windows account name to something different to the folder, can programs see your new windows account name ...
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1answer
59 views

Does a Windows 10 endpoint check software installations for malware if they are installed through GPO / SCCM / Software Center?

I'm trying to get a view on what extra security checks our packaging team could do when they download a potentially infected installer from the web before they package an MSI or EXE (assuming that the ...
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881 views

Can my employer see my browsing history with work account on my personal device

I was using Edge on my personal device at home browsing stuff and realised I was logged in on Bing.com with my Microsoft work account. I cleared my browser's browsing history and also Bing's browsing ...
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109 views

Are all PAGE_EXECUTE_READWRITE are security risks?

I've used a dump program to get a snapshot of my memory on newly installed Win10x64 and then I've pip it into Volatility(Memory forensics Software) by running this command : python vol.py -f ...
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1answer
99 views

How many actions do you need to take to disable DEP

I am attempting to disable DEP on a program that will be used in a demonstration of how a basic buffer overflow works. The application is a C++ app written in visual studio and I am running into ...
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64 views

Risk of specific changes to the “Trusted” security zone

Our EDI VAN provides software to transmit sensitive customer and business data between our ERP and their website. This software requires that I add several URLs (including one plain HTTP) to the "...
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1answer
1k views

What ports should be closed in windows 10?

How can I close ports in windows 10 and what ports are unnecessary to be open? How do I find these open ports to close? Also if I close a specific port on windows 10 do I have to close the outbound ...
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1answer
199 views

How exactly does Windows Defender in Windows 10 determine when to upload your local files to Microsoft?

Every time I install Windows 10, I painstakingly go through every setting that can be found in any GUI setting for the OS, disabling everything that sounds creepy. One of the most disturbing things I'...
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68 views

“Something you have” on a multi-user device - what is the opinion regarding the NIST AAL3 definition?

The NIST AAL3 specification requires In order to authenticate at AAL3, claimants SHALL prove possession and control of two distinct authentication factors through secure authentication ...
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Why did something on my Win10 machine try to fetch a Windows patch-looking EXE from localhost today? (UPDATED)

[Tue Feb 11 10:37:00 2020] 127.0.0.1:49951 [404]: (null) /c/msdownload/update/software/defu/2020/02/am_delta_patch_1.309.678.0_2ed0992bc429bfc321a0209f24dcd8912733a2a5.exe - No such file or directory ...
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101 views

How should I install Kali Linux on my Windows 10?

I'm using Windows 10. I found several ways to install Kali Linux on Win10: Install it on VMWare Install it on Docker Install it on Linux subsystem (WSL) I might need to access some files in my ...
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99 views

Mimikatz Windows 10 password recovery

I'm trying to log into my Windows 10 laptop that was using a Microsoft login. I used to mimikatz to retrieve the SAMkey, LSA secret, dpapi, System masterkeys, and the password hash but it's the ...
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1answer
127 views

Secure Windows 10 Home admin's data behind a password, even when user apps are running

Windows 10 Home's default account lock system for the admin account is not completely secure because there are multiple free password recovery tools & ways available that can be used by a non-...
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2answers
145 views

USB device security in Windows

Am I really understanding things correctly if I claim that: If a USB stick/device is inserted into a PC running Windows, currently in "lock screen" mode (that is, somebody has pressed WinKey + L), it ...
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142 views

Is it safe to use cmdkey to store credentials?

In this question I saw that you can use command key to store credentials and then just run a command like mstsc /v:servername to connect to it without typing anything. Additionally, you can delete it ...
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2answers
1k views

Does a lack of verified signatures for Windows Defender indicate malware?

I ran "autoruns" from Windows Sysinternals on a Windows 10 machine, and noticed that the Windows Defender services were marked in red colour, and did not have verified signatures. I checked these ...
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1answer
67 views

Dealing with File Permissions from a Virtual Machine - Forensic Logical Acquisition

I am currently in the middle of operating an analysis on Autopsy of a virtual machine (VMware) that has been hacked. I have mounted the VM and I am acquiring the evidence from VMware to my physical ...
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754 views

Why does Volatility fail on windows 10 dumps and what other tools can I use? [closed]

So I am trying to extract data from a full memory dump (Made with either dumpit or a BSOD). WinDBG manages to extract some information from it, but Volatility is silent: PS F:\> C:\Python27\python....
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1answer
114 views

CVE-2020-0601 (CRYPT32.DLL exploit) standalone patch? [duplicate]

Is there any standalone patch for CVE-2020-0601 (CRYPT32.DLL exploit) besides installing Windows 10 latest cumulative update? Or is there other ways to mitigate this exploit, when immediate ...
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292 views

How does CVE-2020-0601 (ChainOfFools/CurveBall) work to undermine ECC?

What is the recently patched and disclosed Windows 10 OS family Crypt.dll vulnerability CVE-2020-0601, nicknamed ChainOfFools and/or Curveball? I've read up on it and while I understand the basics (...
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1answer
235 views

Show confirmation popup before running any downloaded program in Windows 10

I often download files either using my browser or by torrenting. Few times, I encountered an attack where the torrented file was called something like movie.mp4.lnk and the target was set to run a ...
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1answer
253 views

How to ensure Windows 10 is safe from critical security hole reported by NSA on 2020-01-14?

All over the news today (2020-01-14) is the story that the NSA and Microsoft have reported a critical security vulnerability in Windows 10. But I haven't been able to find clear instructions about ...
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81 views

security concerns when configuring Windows 10 to automatically log into a Microsoft account-linked user account

I have just configured my Windows 10 desktop PC at home to automatically log into my Windows 10 user account that my Microsoft account is linked to on startup. My desktop is in my bedroom upstairs and ...

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