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Questions tagged [virus]

A computer virus is a program or piece of code that tends to be malicious and is loaded onto your computer without your knowledge and runs against your wishes.

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prevent Ransomware on CIFS shares mounted on Windows 10

I am using Windows 10 with Defender. I follow all the ground rules when dealing with the internet and staying secure. I work in IS so I'm pretty familiar with the various threat-vectors and do a good ...
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2answers
176 views

How does a polymorphic virus identify whether it's already infected a file?

If a virus usually recognizes itself via a signature, but the virus changes every time it replicates, how can the virus identify if a file is already infected to avoid re-infecting? It seems like any ...
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0answers
84 views

Is This a Virus?

i want to ask about a program is it a malware or a program from mozilla? When i turn on my pc it start normally but i see an open program called update.exe and it have a firefox icon on it, when i ...
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53 views

Reliable way to kill AV processes on windows? [migrated]

What is a reliable way to kill AV Processes that are protected against termination? (Like most antivirus) I have SYSTEM level access on a machine but running a taskkill /F on the process still ...
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3answers
59 views

Scan for infection of malicious files manually?

I know there are options of free security softwares out there that do good job like malwarebytes, but I really want to learn how to scan for possible threats of malicious files on your pc manually. I ...
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1answer
54 views

Is it possible to become infected with virus, trojan or malware by browsing the infected sites or running installation .exe?

I am quite paranoid and I am always afraid that when i accidentally open some infected sites it would run scripts that automatically download malwares, viruses and trojans into my pc and run by ...
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1answer
105 views

Is my network infected? Suspicious messages and devices slowing down

Recently a family friend has been complaining that he has been getting hacked on his home network and that he has been receiving suspicious messages from the attacker. He says that the attacker has ...
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0answers
39 views

forensic work on phishing attack sent by user email client

I had an incident where a phishing email was sent to all addresses in the email client (Outlook) auto-complete list to this landing page (VT Report page). It even replied to the emails of the ...
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44 views

Malware makes fake USB device [duplicate]

I am running windows 10 on a X1 carbon. I think I picked up a malware while I was visiting a website. Here are symptoms I had been observing: When I opened the web site, I saw that there is usb ...
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2answers
60 views

Can a file that has been opened and read still contain a virus?

When I download files I am unsure of from the web I typically download them into Sandboxie to be safe. If I open a downloaded file within the sandbox (a pdf of a book for example) and I open to find ...
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1answer
73 views

PC Isolation on network

I believe I have my answer but I just want to be sure. Basically I repair computers, most of unknown origins. Of course some could have viruses and such so I was wondering what the most efficient way ...
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23 views

.PSD file in chrome extension, unable to decode most of it (screenshots)

I sometimes find Chrome extensions that I like. I will pour through their GitHub repos and all the js/html files etc. look clean. Good reviews etc.. But then I will see a .psd file as an icon mixed in ...
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1answer
65 views

Why dont anti-viruses detect encrypted viruses in decryption?

Some viruses are encrypted so that the anti-virus cant identify them, but what i dont understand is, why wouldnt the anti-virus doesnt detect them, considering they have to decrypt themselves before ...
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2answers
80 views

How to find what files in a zip are malware using Virustotal

I have a malware infected android phone and I am suspicious that some of the binaries in system/bin/ and system/xbin/ are malware so I decided to dump the system and zipped the contents of bin and ...
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3answers
179 views

Anatomy of a very creative .txt virus/trojan. How does it work?

So I downloaded a PDF which is password protected. Inside the same folder there are the following apparently harmless files: As you can see, they are both .txt files, right? Pretty harmless.. ...
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5answers
234 views

Why can't you and how to take a picture from infected computer?

Let's say I know that there is a computer than is heavily infested with viruses (but I do not know which kind of viruses) and needs to be nuked from orbit. And on that computer is a very important ...
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1answer
118 views

What do you search for in Open Source code to be sure there isn't malicious code?

I realize the answers will be language specific, but I am curious what terms you would look for when checking something out on Github? I was looking for a remote administration tool that I could use ...
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2answers
270 views

How to handle the virus on my router?

I believe my router is infected with a virus. If it is, it has been infected for a large period of time (perhaps a year or more). Though, I only started to consider it being a virus around a week ago. ...
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1answer
76 views

Virustotal detecting threats in Suricata rule set

Virustotal scans are detecting threats from the Suricata default rule pack located https://rules.emergingthreats.net/open/suricata-4.0/ Is this a false positive? https://www.virustotal.com/#/file/...
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3answers
42 views

Read Write Execute on infected thumb drives

There is some debate going on among my peers. With differing opinions regarding risk on infected thumb drive with limiting policies set on it. Question is Can you still get an infection with read ...
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1answer
263 views

Can I get malicious malware in my computer or any kinds of virus by registering through Google/Facebook to a specifc site?

Lately, there is a start up company in Israel called Initiative Q and currently it gives out coins (that are similar to bitcoin but they don't run on Blockchain technology) in order to advertise their ...
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2answers
214 views

How to act on company-wide malware infestation

A colleague left and I have been entrusted with the security of the company. Checking an initial status I found that the machines are infested with viruses and there are multiple port scans and brute ...
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1answer
65 views

Getting a M2IzYzlm.exe in task manager [duplicate]

Getting a M2IzYzlm.exe in task manager, It pops up after a certain interval of time and switches off my wifi, when I right clicked and tried to locate it, it shows a folder with a weird name inside ...
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2answers
212 views

Should I continue using this (potentially dangerous) website?

As a part of my project I had to scrape some motivational pictures, so I considered using the gallery section of the website, "Quotes Cover" - "https://quotescover.com/category/quotes-gallery". ...
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2answers
168 views

Is this a virus or what? DECRYPT_INFORMATION

On my computer there are lots of html files with titles DECRYPT_INFORMATION. I have scanned them with AVG and it says they are no threat but I am suspicious. I don't know html so when I open them on ...
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1answer
60 views

Need to infect a computer for testing - how do? [duplicate]

I'm trying to infect a laptop with malware for testing purposes and I just can't seem to do it. I've been searching for .exes that will just RUN and I can't find anything straight forward. Looking at ...
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61 views

VirusTotal: Download URL is clean, but downloaded/reuploaded file is infected

If I scan a file download URL in VirusTotal and it's clean, but then download that same file and then reupload it to VirusTotal for scanning and it finds infections, why would that be the case? The ...
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1answer
10k views

Was Goggle.com actually crazy malware in 2006?

McAfee version: https://www.youtube.com/watch?v=3atmWmWCwlw “Spyware Rubbernecking” WebRoot version: https://www.youtube.com/watch?v=I6D-GSdLtNo “The effects of typosquatting”. This video shows how ...
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1answer
127 views

Feasibility of infecting notebook BIOS with virus?

I bought my computer in 2011. From 2011 to 2015 the computer was accessible to a cousin of mine who is a developer. He doesn't work with IT security, but has more than a decade of experience ...
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1answer
91 views

How (and where) to report a web site distribute a program with a virus?

I came across this free video converter program for Windows called Any video converter and installed it, my antivirus program immediately found a virus within it (Win32:Evo-gen). How and where can I ...
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1answer
248 views

(WMI Infections) Suspect behavior from scrcons.exe detected?

In almost every five minutes, I come out of the AVG avg stop downloading files and do not know which program wants to download these files. I have read this before WMI Infections So, i opened this ...
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1answer
135 views

Firefox accuses of malware, but virustotal have 0 matches

I sometimes download PDFs on libgen and sometimes Firefox will acuse them of being malware with the advice "this file contains virus or malware" but gives no details. I've run several of these files ...
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2answers
100 views

While installing Go programming language trace.exe detected as virus by KAV

When I tried to install Go programming language, Kaspersky AV in my system detected a path to file: C:\Go\pkg\tool\windows_amd64\trace.exe as suspicious one and triggered a virus alert. my doubt is ...
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2answers
261 views

Refurbished laptop computer - any advice?

I just recently bought a refurbished laptop. I have seen stories of refurbished phones being sold with spyware, trojans etc installed on them. My question is, what steps should I take (outside of ...
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1answer
161 views

Suspicious redirect in Chrome

I was online and one of the sites randomly redirected to a site called mcafeesecurity.application-center.club. It was talking about how my mcafee has expired (my subscription is current). I scanned ...
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1answer
153 views

Filezilla for mac OS - Virus?

I hope this is the correct stack to post this. So I'm trying to download FileZilla for my macbook and I have McAfee installed, when I click in the download button, the antivirus flags it as Artemis!...
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1answer
136 views

Malicious URL - just Chrome [duplicate]

I was scanning a file on VirusTotal.com and it was identified malicious by only one antivirus (1/68 antiviruses) called CMC so I was interested to know about this antivirus, see if it's the deal or ...
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2answers
134 views

What harm could malicious PHP code cause?

What harm can virus sites that contain malicious PHP code cause? What is an example of a piece of PHP code that could potentially harm your computer or steal information? I know that most if not all ...
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3answers
538 views

Malware infection through phone call [duplicate]

Is it possible for someone to infect your phone/computer network with malware through a phone call if the phone is connected to said network as well?
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2answers
109 views

How to make a Virus Analyser? [closed]

want to create a program that can check a file and give output about file is in infected or not,also need to know what kind of infection that file have (ex : Trojan, worms, etc ) Is there a way to ...
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0answers
16 views

I get new files and code modifies on website [duplicate]

I need a help! This is very weird malware I get every week even if I delete it and I don't know what to do. I have a virtual web hosting (not VPS). There are more than 10 websites like: /site1.com/...
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2answers
5k views

usync.nexage.com MS Edge Exploit?

Related to this question: Is This A Hack/Malware/Breach? Date: Noticed between 5/23-5/24/2018 OS: Windows 10 Applies to: Windows 10 version 1709 for x64-based Systems Browser: Microsoft Edge 41....
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5answers
8k views

Almost fell for “tech support” scam - what is the risk?

An acquaintance of mine got a call from an alleged Microsoft employee and provided him access to his Windows 10 computer via team viewer (commonly known as the tech support scam). But when the scammer ...
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1answer
86 views

Can a Windows program compromise the desktop hardware without giving administrator rights?

If I run a program on a Windows 10 machine, can the program install a virus on an attached USB drive, and can it install a virus into the firmware of the computer to be loaded before the OS/bootloader?...
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1answer
4k views

What is cloudfront.net AdWare?

Here is some information I research about cloudfront.net AdWare: I've seen several topics talk abou this malware: Cloudfront.net Malware According to this article: How to remove CloudFront.net ...
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1answer
142 views

Haunted Google Account?

Not to be dramatic but at my level of inexperience, the title is what I'm left with. Hoping smarter people can point me in the right direction, so here goes... A google account used in a school ...
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1answer
247 views

Why is my Windows desktop using a DNS Server on localhost?

I recently inherited a corporate network and one of the devices kept having errors connecting to mapped network drives with errors pertaining to the server time being different than the computer's ...
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1answer
54 views

If the browser enforces a Sandox, then why the infections by malware?

By design the browser enforces a Sandbox, but we know that Javascript which runs inside this sandbox can be used to do malware damage etc.Isn't the sandbox supposed to protect against it as well as ...
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0answers
66 views

Opened .dmg file, but didn't click on the application inside. Am I safe?

I downloaded an untrusted .dmg file (that I'm fairly sure was malicious) on macOS High Sierra and double-clicked it to open it, mounting it. I didn't double-click or open the actual application ...
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2answers
136 views

Can a website detect malware or virus present on device / PC?

I just got off the phone with an investment firm where I have an account. About a month ago, they blocked online access to my account due to "malware or a virus" found on my PC or device. Since we ...