Questions tagged [internet-security]

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Is a file Overlay a security threat?

How do you tell if the "Overlay" found on some files when searching the hash checksum on VirusTotal poses any threat? Would the Overlay be part of the signed file? Does the VT page ...
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2 answers
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How to use pgp to send email?

So I was reading a post where it seems the author provides its email through a pgp. How am I supposed to use that pgp to send him an email? https://decovar.dev/about/#contacts
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What does Google know about me when I use Chrome to browse?

Specifically, I wanted to know, when one uses Chrome to browse, assuming that they are not signed into a Google account and there are no cookies/history/cache or other data saved before starting, ...
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Why is mega.nz keeping 3.3GB of data in my computer

I am near the end of my free space of my C: drive and chrome said that I should free some space and suggested to show my how much data each site keeps on my machine. It turns out that a site called ...
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Couldn't arp for host, Kali Linux

I am currently learning the basics of cybersecurity and I am trying to follow the following tutorial on ARP spoofing. I am using kali linux on a VirtualBox VM on my Windows pc to redirect my windows ...
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How do I disable the Firefox "sign into XXXX with Google" popup? [duplicate]

I've looked around and found ways to do this in Chrome, but how can I disable this in Firefox?
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How can I edit automatically a request in burpsuite?

I want to change this 0 to a 1 everytime this request appears I want to change this 0 to a 1 everytime this request appears, I tried the match and replace option of the proxy but it doesn't change ...
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How to avoid downloadable files being blocked by Windows?

I am maintaining a commercial web site and delivering a product via a download area. The files are free of access and intended as a promotional means for the product. This is a critical element of my ...
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Trying to PenTest my client's local network but their Public IP is the same as other people in the area

I posted something similar before and it was just Closed due to clarity. So I've updated it and added clarity and changed the title. I had posted on Stack's Network Engineering but apparently I was ...
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3 votes
1 answer
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How can I make a camera system more secure that has port forwarding enabled

I just want to know what I can do to make a more secure connection while my ports is forwarded to enable remote viewing of a camera system. I've done some research and got SSH tunneling and MAC ...
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-6 votes
2 answers
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Why are wireless not secure? [closed]

I would like to ask Why are wireless networks not considered secure despite the presence of some safeguards such as encryption, reliability, SSID, use VPN, and integrity? thank you.
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3 answers
301 views

Someone's trying to hack me, don't understand how they are bypassing my router, please help me understand?

Mar 5 00:39:44 deepcool sshd[259265]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.220.78 user=root Mar 5 00:39:47 deepcool sshd[259265]: Failed ...
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1 answer
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Failed login attempts, constant brute force

I'm running a VPS with an iptables firewall (configured via ufw). I have shut down all traffic with: sudo ufw default deny incoming sudo ufw default allow outgoing After that I have opened certain ...
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Shared Cloud Storage for Teams with option to upload only and no download

I am looking for a shared cloud storage for teams. Ideally the admin can assign what directories the members can see. And the members can only upload files and see the contents in the directory but ...
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Secure database connection from public IP

We have an Android App and a website that requires connection to local database. Working Scenario is Online Website (.net) is in one dedicated virtual server with public ip. Then we have another ...
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Network Protocol Violation error for some websites when using public wifi with no VPN. Is this indicative of a hacking attempt?

Below is the error I receive in Firefox when accesing Gmail, Google Search and other websites owned by Google. The site at https://mail.google.com/mail/gb/u/0/#inbox has experienced a network ...
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Can I decrypt a gpg encrypted file on any computer?

I am storing some 2FA recovery keys inside a txt file, which I then encrypted using gpg -c file, I can decrypt it fine in my own computer (virtual machine actually). But I was wondering, if something ...
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If I were to set up a router to route network traffic directly through a VPN, do I lose the advantages of PFS?

I have been learning about the advantages of connecting to the internet via a VPN but before I jump in with both feet I’ve decided to do some reading around the subject to understand what I’m getting ...
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2 votes
3 answers
4k views

Configuring Windows to only allow traffic through VPN

I would like to configure Windows 10 to only allow traffic through a VPN connection. For example, Firefox won't have internet access if the VPN is not connected. I want to be able to turn this ...
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2 answers
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Am I broadcasting or what?

My internet speed is bad. When I connect with a cable bypassing the router, it is good. Router seems to be fine however, and configuration is seemingly OK too. Thinking about interference, I looked ...
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2 votes
1 answer
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Dealing with .logicdata file

I am practicing for CTFs and have this assignment on hardware security. I was given a .logicdata file and wonder how I can open it to analyze it?
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2 answers
453 views

How to access a website on a separate vlan (DMZ)

I have an Apache webserver (on Raspberry PI) running in my home environment. This website is accessable from the Internet by port forwarding on my router. The protect my LAN I have defined a separate ...
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1 vote
1 answer
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Pfsense firewall and modem

Should pfsense be connected directly with the ISP or should it sit behind the ISP provided modem. If so, should we use pfsense for security reasons only or to improve performance as claimed in this ...
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-1 votes
1 answer
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How to save browser cookies in ram?

I have a laptop I use in public where I access some sensible information over the browser. I already encrypted it and cookies are automatically deleten when I close the browser. The problem is, if ...
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2 votes
1 answer
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Does chaining 2 VPN's with VM need extra settings?

Hi I am wondering if chaining 2 different VPNs from 2 different VPN providers through a Virtual Machine needs any extra routing settings or any extra settings in general.. I have searched and I've ...
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2 votes
3 answers
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Security differences in going online by WiFI vs by Ethernet lan cable

Which relevant differences are there when comparing: going online with a computer via WiFI connection or using a Ethernet port and connect with Lan cable to the computer? 1) Aspects such as: VPNs, ...
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1 vote
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DNS Server is flooded with localhost resolution

I have a public DNS server and can be accessible by anyone. Recently we have been flooded with thousands of DNS queries trying to resolve a "localhost" such as these: Is this supposed to be intended ...
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0 votes
1 answer
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Where can I find wifi profiles?

Laptop recently got lost. Is there any way to grab the wifi profiles off of that laptop? Microsoft's sync doesn't work as both PC's have to be on a running for it to transmit data. For example I ...
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0 votes
1 answer
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Motorola MG7700 on XFINITY, mysterious user IDs and passwords

I did a "backup" via the user interface on my Motorla MG7700 modem/router connected to Xfinity. In the dump, I found all IDs and passwords are unencrypted. Motorola acknowledges that much. What ...
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1 vote
1 answer
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How to show keys in netsh without mentioning the name parameter

Queria saber se no netsh show profiles key=clear,ao invés de colocar o ssid de cada rede para ver o "Conteúdo da chave", poderia mostrar de uma forma geral. Já tentei usar o "*" no name,mas não deu ...
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0 votes
1 answer
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Is an open port on Router a threat if it's forwarded to a host which not exist

Consider we have port 65434 open on router (open for WAN). The port forwarding is done to a host which does not exist. Can a hacker exploit this open port on router which leads nowhere?
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Options to protect open ports

What are the best/common options to protect an open Port? For example for Plex or torrent A few I can think of: change Port number from standard to random unused one to help obfuscate Setup firewall ...
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Can somebody with link can edit exe or APK files on google driver?

If I share an EXE or APK file with the option of editing on Google Drive, can anyone actually change it? I mean the file?
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Secure shared internet connection

I share my internet connection with a neighbor. They connect through wifi. I have computers running Windows and Linux, Android smartphones, Chromecast and TV. Question: how can I prevent my devices ...
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1 answer
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How safe is it to use Gmail, Facebook, YouTube, Amazon on Public Wifi or more official Wifi such as Apple Store Wifi?

First of all, somebody could be pretending to be the airport Wifi by setting the Wifi ID to be "Free Airport Wifi", so it might not be the "official Wifi". And either it is "official" or "non-...
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Are these signs that my computer is being monitored or hacked?

I'm using this ACTalk.exe for work. It's an online classroom. Several months ago, whenever I look at Windows Performance Monitor, I can see ACTalk.exe connecting to several IP address which I think is ...
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19 votes
3 answers
7k views

Can an untrusted VPN client monitor my network activity?

My scenario is: This is my own Windows 10 machine. The client has installed a VPN that connects me to their servers. The VPN is auto-connected when my Windows 10 machine is booted up. If I am not on ...
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1 answer
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How can I add an exception to the Content Security Policy in Firefox 56?

I am using Firefox 56 because it is the last version that still allows me to use my add-ons. Today Twitter has changed something in their coding, so that the videos posted on Twitter stopped playing ...
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1 answer
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Need to stop ex husband from getting into my desktop [closed]

First, I’m VERY sorry if I am in the WRONG place here. I know my way around computers, compared to all of you, probably NOT AT ALL! I am in the middle of a divorce from a VERY abusive man who is ...
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Apache is Adding Javascript in HTML File

Today I got a strange situation where my Apache Server is adding a bit of Javascript code just before closing tag. I tried to find out but could not success what is going here on the server. I ...
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-2 votes
1 answer
270 views

Wifi Security Vs Authentication Vs Encryption

While configuring a TPL Wi-Fi Access Point I found out that there are three similar parameters in it which need to be set to make it work properly. If these parameters are not set correctly then some ...
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-1 votes
1 answer
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Is having all wireless devices (both visitors and home users) use a guest wireless SSID a bad idea?

I'm reluctant to have any wireless devices with visibility into my home LAN systems (PCs / home servers). So I was thinking of having all wireless devices use the guest SSID. Is this a bad idea? I don'...
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1 vote
1 answer
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Emails are automatically sent to Chinese addresses - scam/spam/virus?

My IT-colleagues have noticed that a (non-IT) user in our work network has some strange things going on in her mailbox. In the user's sent folder we noticed a bunch of emails with all Chinese ...
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2 votes
1 answer
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Edit Firefox multi container configuration

I have several containers configured on my Firefox and I have been using for a while, so container have information associated. However, sometimes I was not very focused and I used the wrong one for ...
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0 votes
1 answer
74 views

Remote machines making unauthorized SSH login attempts

I recently configured my external-facing router to forward traffic to port 22 on one machine on my LAN. SSHD is the only service listening on port 22. Immediately I received traffic from IP ...
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0 votes
1 answer
170 views

NMap Result -A reference meaning

I ran nmap command for ssl enum cipher and got the output something like this (Could not copy paste due to intra network restrictions ) TLS1.0 TLS----SHA256 -A --- Cipher Prefernce -...
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1 vote
2 answers
4k views

COMODO antivirus : Getting message “Security agent could not be started” after uninstallation

I had COMODO antivirus installed in my Windows 8.1, 64 bit machine. I recently uninstalled it. But whenever I restart my machine it always prompts me this error message. Does it mean the ...
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1 vote
1 answer
137 views

Are my credentials secure when I browse through a corporate web-proxy?

By "my credentials" I mean the username and password that I provide upon log-in in various web sites, such as Google, Microsoft etc. My company is allowing browsing through a web-proxy. What ...
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-4 votes
1 answer
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Entering a random number sequence seed under surveillance [closed]

I'm trying to transmit a continuous sequence of random numbers from my computer over to another country (for validation purpose). This sequence is a series of pseudo random numbers recursively ...
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0 votes
1 answer
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Software for home routers to block HTTPS website

I have a netgear R7000p and I am looking to block snapchat on the home router. Is there anything that could help me with this. I have tried to use OpenDNS and the website blocking functionality built ...
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