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Questions tagged [virus-removal]

The process of removing a virus or malware from a system.

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Are most viruses detected eventually?

My question is being asked in the case that I am currently infected. Many viruses are zero-day viruses, and in addition, I only occasionally install MalwareBytes, which seems to be the agreed-upon all ...
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1 vote
1 answer
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New York Times article about FBI secretly removing malware from U.S. corporate servers - would this indicate they have a government backdoor?

New York times just ran an article titled "U.S. Says It Secretly Removed Malware Worldwide, Pre-empting Russian Cyberattacks" that stated The United States said on Wednesday that it had ...
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Malware link to QNap - What does this do?

I found shortcuts on shared drives in an org on the main drives (C,E,F,etc) but like so (.E, .F, etc). All of them have the ownership set to 'Everybody' only and only have read permissions, so unable ...
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1 vote
3 answers
413 views

My computer was probably infected by a virus from a professor [duplicate]

I got a mail from my professor this morning with a request.zip file attached and a password in the mail to open it. Since the mail was from my professor and he already did send me zip attachments I ...
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1 answer
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Can Android be hacked without ANY symptoms [duplicate]

The full story goes here In short, I surfed darkweb on android(updated android 10, now 11) carelessly and ignored some hijack warnings(2 of them) by Tor (warnings came in the form of a purple webpage ...
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Surfed Darkweb carelessly [duplicate]

A while ago, I installed Tor app on my android (fully updated and Android 10) and with a free Vpn tried to open some sites listed on several blogs (like "best dark sites in 2020" or "...
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Is Chrome Browser/ Computer compromised by KMSPico?

I recently installed a new windows key for my friend. He was using a hack program previously, known as Auto KMS. So after new keys installation, I used Windows defender to remove AutoKMS program. The ...
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How to decrypt encrypted data from .repl ransomware on Windows? [duplicate]

My PC is infected with some sort of ransomware. I managed to take out the root processes of the virus (which encrypt and change all document, images and video files to *.repl files) but recovering the ...
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0 votes
1 answer
657 views

Screenshots and steganography, can malicious code in image be copied?

If you have an image that has malicious code written into it using steganography would a screenshot of that image have functional malicious code as well? Or does the recapture transform the image data ...
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1 vote
1 answer
152 views

Formatting potentially infected USB stick before plugging it into trusted devices

As stated in the title - is formatting my own USB stick on a separate computer with live-Ubuntu enough to prevent malware infection? I work as computer technician and sometimes my pendrives must be ...
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20 votes
2 answers
4k views

How to remove quarantined virus securely?

There is a file found by antivirus program and it was put into the virus' quarantine section (its not a false positive). Now I don't know how to handle this "quarantined" files. What is the best ...
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2 votes
1 answer
377 views

Would my USB interface be infected if I attached and immediately detached an infected USB device?

Two days ago, someone gave me their pen drive to copy some songs from. As soon as I inserted the drive into my laptop's USB interface, Windows Defender immediately warned me that the drive was ...
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How to remove a very stealthy virus? [duplicate]

I have a virus on my laptop preventing me from installing antivirus, or updating windows or even opening task manager. i tried running a virus scanner from a portable scanners, the virus disappears ...
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3 answers
152 views

Is it safe to backup programming projects from a possibly infected computer?

Is is safe to backup programming projects (for example websites that where made using HTML/CSS/JS with the help of some frameworks and libraries (Bootstrap, jQuery, etc.), C# projects made with the ....
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3 votes
1 answer
824 views

Undetected Trojan: what type of Scheduled task is this?

on a computer I received an email with a web link inside that shows the following address: hxxps://myprimeedu.com/certificato/f0uq1-17relk-aW5mb2NlcmJvbmVhbGx1bWluaW9AcGVjLml0-y8ym71-wowuq-2rpvmx/...
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-1 votes
1 answer
2k views

Can an ISO file harm my computer without being executed by me?

This is very related to this question: What damage can a malicious .iso file cause without explicitly executing it? An ISO file got downloaded to my desktop. I immediatly tried to delete it, but when ...
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1 answer
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What is this NAT rule forwarding UDP port 1052?

I just went to have a look through some router settings today and found an unknown new entry in the NAT table, forwarding UDP port 1052 to the same port on a host which runs both Windows 7 and Linux. ...
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3 votes
3 answers
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Should I be worried about old viruses from a hard drive that hasn't been used in the last 13 years?

I recently built a new PC with windows 10 and I was recovering some pictures from an old hard drive that I had in one of my PCs from about 13 - 15 years ago. The hard drive has just been sitting in a ...
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0 answers
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.[fileslocker@pm.me] virus [duplicate]

I have one PC (Windows 7) which is attacked presumably by a ransomware (in spite of having regularly updated antivirus viz Net Protector AV). What I could see is this -- In MySQL/bin folder, all files ...
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2 votes
1 answer
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How can I recover my exploited android phone? [closed]

I have a Samsung S9 phone that has been exploited by my neighbor, however I am unsure as to how to prove/verify it, how in depth the access is to my phone, or how I can re-secure my phone. It seems ...
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0 votes
2 answers
293 views

Is Kaspersky Total Security a good choice against malware? [closed]

I've been using Kaspersky Total Security for quite some time even though I'm not an Information Security professional, I heard it was considerably efficient. Yesterday, though, I was navigating ...
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2 answers
226 views

Could my computer have downloaded some sort of virus or malware after clicking this button?

I went to the website: katsokos.com, and was shown this page: I stupidly clicked on the verification button and was redirected to the chrome store page for some chrome plugin, as well as the website ...
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1 vote
0 answers
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Computer Virus detection decidability proof [closed]

Is there a way to prove that detecting computer virus is decidable, the prove may be theoretical also
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1 vote
1 answer
186 views

Android antivirus apps

Is it necessary to have an internet connection to run and properly scan an android device for viruses or malware using an anti-virus app? How an anti-virus app scan an android device for infected ...
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1 answer
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SSD Wipe to remove known & unknown malware [duplicate]

Does anyone know of a method to wipe a HDD that gives a high degree of confidence that any malware present will not persist when the OS is reinstalled? Using tools on Linux and/or Windows? We have ...
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2 votes
1 answer
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How Do antiviruses decide whether a file is to be quarantined or not?

Situation: Trying to understand how an antivirus works. So when an antivirus finds a file with a hash value matching their database, it reports it as an infected file and would quarantine it. Problem:...
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0 votes
1 answer
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functioning ( behavioural based ) of an antivirus [closed]

I know how signatures are used to detect malware samples of already known malware and techniques to apply to use. 1.What are some of the different behavioral techniques used by antivirus/anti-malware ...
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-1 votes
1 answer
266 views

I May have a Virus. What Can I Do? [duplicate]

So recently, I was Googling for images so that I can run Cisco router images on GNS3. I know I shouldn't be looking for images and I will now stop. I came a across a site and I believe it gave me a ...
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1 vote
2 answers
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How to safely reformat? [duplicate]

Spyhunter has found an infection on my computer and I need to reformat, evidently. The main question I have is how can I safely reinstall Windows with all Windows updates safely? I suspect that each ...
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3 votes
4 answers
589 views

How to know if virus alert is false positive?

I received alerts (email & browser injection) from my ISP about a Zbot infection behind my modem. I ran Microsoft's malicious software removal tool, as well as AVG's Zbot remover on both my ...
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3 votes
0 answers
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Possible EternalBlue Infection, Next Step? [duplicate]

Sorry if I messed up in any manner, e.g. title, details, tags, layout, venue, response plan, etc. I know a little of the stacks and security in general. Short Version: I found material on my other ...
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0 votes
1 answer
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How to search for malicious software added after a recent date

I recently gave my laptop to Apple for repair, and they required my admin password. Of course I supplied a temporary password, but they still had access to the admin account. I trust Apple, but I'm ...
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3 votes
3 answers
1k views

Problems with Chrome, Skype and Discord - possible MITM attack? [duplicate]

Two days ago everything was working just fine, but then I got this error in Google Chrome: Your connection is not private. www.youtube.com might attempt to steal your personal information. At the ...
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4 votes
2 answers
374 views

What is the best way to screen potentially compromised USB or flash devices?

I've got some flash devices. It is a bit like playing Russian roulette. The devices are of unknown origin containing information of unknown value. However, the potential value is great enough to be ...
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1 vote
2 answers
216 views

Different virus types of testing on a Windows VM [closed]

I am a masters student in computer science, and I need to do a project with virtual machine (host and guest both are Windows 10). The project is: Describe and experiment different methods to clean up ...
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2 answers
1k views

Can HDD without OS contain active virus

I bought a Free-dos computer with 128gb SSD and 1 TB HDD some time ago, installed Windows 10 on the SSD. After months of usage by many people, I question the security of the computer, I see sudden cpu,...
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2 votes
1 answer
2k views

File signature vs Virus signature

I have thought of creating simple anti-virus. I have read some article and they said that the there is a two way of detection. The virus dictionary signature searching is the one method. So I have ...
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1 vote
0 answers
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What do "Mac Ads Cleaner" and "Mac App Cleaner" do while installed? [closed]

Recently I responded to a suggestion that I "upgrade Flash" on my macOS system only do end up with several applications running, and intruding into my browser and desktop that I did not (mean to) ...
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2 votes
1 answer
270 views

Hosting send virus errors could not get rid of this

I have a wordpress website and hostgator keeps on sending this information → During a scan of our servers we identified malicious content in accounts under your control. We have quarantined the ...
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5 votes
1 answer
7k views

Can you recognize this virus?

Yesterday i noticed a folder with a strange name, it looked like this from the inside: I was cautions not open any of the files, but i opened the .sql in a text-editor, to realize it's not SQL but ...
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0 votes
1 answer
252 views

Locking down Ubuntu

A competition is coming up at my school for securing computers and my OS for this challenge is Ubuntu. I'm trying to think of things to add to my list of security measures and things to look out for. ...
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-1 votes
1 answer
126 views

Is the Android Application Manager Infallible? [closed]

When the Android Application Manager reports that an app has been uninstalled, or an app does not or no longer appears in the Application Manager list under any category (installed, running, etc.), is ...
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1 vote
1 answer
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my server got hacked and I only got to find the cronjob command [duplicate]

I installed Clamav and rootkits detectors and they found nothing. The virus run a few process named modules that eating cpu, my server vendor told me that it is bitcoin miner virus but they didn't ...
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1 vote
2 answers
729 views

Shared hosting is hacked [duplicate]

My shared hosting with GoDaddy was hacked by injecting a PHP file (deade6.php) that is recreated every time I delete it. I also tried to modify the .htaccess but it gets recreated as follows: <...
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1 vote
0 answers
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How to get rid of youndoo? [duplicate]

Lately my computer was infected with an adware called youndoo , this opens a search page every time I open a browser , tried resetting the browsers and used a malware remover , but didn't work , how ...
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180 votes
11 answers
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Help! My home PC has been infected by a virus! What do I do now?

This is an attempt to ask a canonical question as discussed in this old meta post. The goal is to create something helpful that can be used as a duplicate when non experts ask about virus infections. ...
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-2 votes
2 answers
2k views

Is it safe to use a computer for banking etc after you have removed a virus from it? [duplicate]

So one of my laptops had a virus recently. I managed to remove it by running my computer in safe mode and then running my Antivirus software (norton). My laptop appears on be running fine now. ...
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1 vote
1 answer
5k views

Prevent external hard disk drive from infection

Will partition of my hard drive help me to protect my essential files? I want to divide my 1 TB Hard disk drive into 4 partitions and store my files accordingly. For example I am keeping my movies in ...
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1 vote
1 answer
166 views

Where can I get more info about these viruses?

I've been using Airtel 3G Dongle (Data Card) on Windows and ClamWin has detected the following viruses in the dialer software of Airtel: C:\Program Files\airtel\TCPOptimizer.exe: Win.Trojan.Swrort-...
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7 votes
3 answers
31k views

How can I kill minerd malware on an AWS EC2 instance? [duplicate]

I have an AWS EC2 instance running RHEL 7.2 which seems to have been hacked by a BitCoin CPU Miner. When I run ps -eo pcpu,args --sort=-%cpu | head, it shows that there is a CPU miner that's taking up ...
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