Software for protecting against, detecting, and removing viruses, malware, and other potential threats to a computer system.

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Comodo Antivirus - Fails to update signature database

I am using Comodo Internet Security including Antivirus v5.8.213334.2131 Free version. Virus signature database v 25399. OS Windows XP Sp3 I am trying to update this signature online. It downloads ...
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14 views

On Win7 do I need WinDefender's scan when I have NOD32?

I have NOD32 Antivirus which provides realtime virus protection and also, I think, does scheduled full-system checks now and then. But the stock 'flag' icon (I don't know what it's called) in my ...
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0answers
9 views

Antivirus (Symantec) is re-quarantining files in the quarantine folder

Since yesterday I am getting constant notifications of threats Symantec is finding, except they are all in the quarantine folder. They are then "moved" to the quarantine folder, and then again I get ...
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3answers
43 views

Is it possible to kill a process on its startup? [on hold]

I have to run a program, a virus scanner, on my work laptop. It is awful, so amazingly bad that it slows down everything else I try to run. It's made me so much less productive - however, due to ...
2
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2answers
185 views

Avira free using 1.45GB of memory on Win7, what can i do?

I have Windows 7. Resource Monitor says that explorer.exe is using 1.4GB and Avira is using 1.45GB. That's too much ram, I have 4GB total. Including Chrome and other processes I have less than 1GB ...
116
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5answers
18k views

Why does anti-virus software not delete the viruses, malware, etc., but instead quarantine them?

Why does anti-virus software not completely delete the viruses, malware, etc., but instead quarantine them? Is it not better to completely get rid of them? Why? And how can I manually remove them?
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1answer
3k views

Failiure to update Windows defender virus & spyware definition - 0x8024402c

An error with error code 0x8024402c is thrown each time while trying to update Windows Defender's virus & spyware definition. Checked the following for diagnosis, and found no problem with these;...
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4answers
2k views

Portable Anti-virus/spyware/malware toolkit

I am trying to remove a plethora of viruses from a friend's computer and was wondering if anyone knew of a portable anti-virus toolkit? What I am thinking of is a live-cd/dvd that may boot up ...
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5answers
2k views

is anti-virus needed for windows guest accounts

A co-worker of mine insists that if a Windows PC is used exclusively by guest-accounts, then there is no need for anti-virus software to be installed. this strikes me as a bit optimistic. is this true?...
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419 views

Why does Kaspersky Internet Security 2016 not update on Windows 10?

I have recently installed on my Windows 10 Pro computer the Kaspersky Internet Security 2016 (version 16.0.0.614(e)). Kaspersky issued the following message right after the installaion, then began ...
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1answer
38 views

Linux botnet removal

I fear that I'm under a linux botnet takeover. sudo netstat -antpv with all browsers closed, besides other results, returns this: Proto Recv-Q Send-Q Local Address Foreign Address ...
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6answers
11k views

How to disable Kaspersky Antivirus javascript injection?

Since the installation of Kaspersky AntiVirus 2016 every website I visit contains this line in <head>: <script type="text/javascript" src="http://gc.kis.scr.kaspersky-labs.com/...
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1answer
122 views

Antivirus/firewall software collision?

I use McAffee as my antivirus usually, but I recently encountered a trojan that Mcaffee couldn't fix. So, I installed Malwarebytes' Anti-Malware at the suggestion of a friend. Malwarebytes fixed that ...
3
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1answer
339 views

Windows Defender: Disable real time; keep scheduled and on demand scanning

I just upgraded to Win 10 (RTM build). I have disabled the built in AV's (Defender) real time protection because I do not run it, never did and have never gotten a virus (and I've had a computer for ...
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1answer
40 views

How to disable (signature-based) real-time scanning and leave behavior monitoring enabled in Windows Defender?

I believe that Windows Defender included in Windows 10 implements some forms of protection other than signature-based threat detection. Two Group Policy settings indicates this: "Turn on behavior ...
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9answers
2k views

Anti-virus for windows 7 home premium

Hi all I have a new laptop with Win 7 Home Premium. this machine came with already installed "MS Security Essentials" anti virus. I've installed on the laptop another protection "Symantec Endpoint ...
343
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18answers
265k views

How can I remove malicious spyware, malware, adware, viruses, trojans or rootkits from my PC?

What should I do if my Windows computer seems to be infected with a virus or malware? What are the symptoms of an infection? What should I do after noticing an infection? What can I do to get rid of ...
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0answers
68 views

Failed to load resource: net::ERR_TIMED_OUT in All browsers

I have a problem with all my web browsers, for example when i try to enter to google play, images are not showing and i get this error: Failed to load resource: net::ERR_TIMED_OUT in the developer ...
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0answers
70 views

Chrome running incredibly slow on new top-notch win10 machine

I've tried a few fixes from a cursory search: netsh winsock reset: worked fine after restarting, then back to usual after second time opening disabled gpu acceleration: didn't do anything reset ...
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2answers
46 views

Using OS in virtual-machine increases security? [closed]

I have question about security. I don't know if it's good place to ask this question here. Let's say I want work with money, trade it and so on.. And I have ubuntu on iron on my laptop, but I have ...
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2answers
103 views

WinRAR virus scan setup

I noticed WinRAR has the feature to scan archives for virus, however it appears to need setup. This is the window it presents with, how do you configure it for AVs like Windows defender? Also, is ...
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1answer
33 views

Is checking without a on boot check enough after clicking a malicious link in a mail?

After quite a few years it seems like I now myself fell over a malicious mail. Now my question is if what I have scannerwise active and also what I did is good enough to feel save again? The Mail ...
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3answers
55 views

Can I split file and do online virus scan

I have an exe installable which I want to do virus scan online before installing it (I do have a running AV but I am more cautious). Most online servers are limited to certain size (like 128MB for ...
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7answers
8k views

Rock-solid hardening of a Windows 7 system?

I am historically a Linux guy, and only use Windows when I absolutely have to via VM. However, I recently purchased a new rig so that I can keep a dedicated Windows 7 machine up for hard work (cough,...
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16 views

Executable file cannot be downloaded or copied to computer

Today, I tried to install a patch for a game on my Windows 8.1 computer. However, when I try to download, the connection is immediately interrupted. When I try to download the file on another ...
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0answers
33 views

Is it possible that I got a virus without clicking what I downloaded? [duplicate]

A couple of days ago I accidentally downloaded a file that looked very shady. My antivirus (Avira) pinged me that the file was suspicious, so I immediately deleted it, and then cleared my browsers ...
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1answer
85 views

How to disable Kaspersky repetitive null requests showing on Chrome's Network Developer Tool?

Kaspersky creates repetitive requests appearing annoyingly on the Developer Tools > Network on any webpage I try to analyze. I'm looking for disabling Kasersky requests to appear at all. That is to ...
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0answers
12 views

LogMeIn Central not tracking Anti-Virus

We've been using LogMeIn to manage our PCs within our office (250+). After a LogMeIn update, LogMeIn central has completely stopped tracking the version of Sophos we run in our office. As a result ...
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1answer
24 views

VPN malfunction related to Antivirus

I'm running Win 7. I use TorGuard VPN. I'm connected through a wired LAN. My connection is High Speed cable and works fine. My VPN connection is normally good - maybe a second or two slower than non-...
3
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1answer
65 views

How to check for false positive from anti-virus

Ran Kaspersky Rescue 10 overnight and the system came out clean, except for an obscure shortcut (one amongst hundreds). Kaspersky reports the trojan as: trojan-downloader.win32.pif.xx and according ...
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2answers
57 views

Does OS X have 1st party API hooks for antivirus/security software?

Curious about this since I recall reading once that 3rd party Android AV apps are useless because of the OS' lack of API hooks for them (which Windows has). Is this true of OS X also, or not?
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1answer
162 views

Use ClamAV to scan large files

We have a Linux VM running Xubuntu with ClamAV installed. We would like to scan files larger than 4Gigs, using the clamscan command preferably. I can use the --max-filesize=x and --max-scansize=x ...
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1answer
5k views

How to report a malicious site to Google, Microsoft, Mozilla, etc. so that they will warn users [closed]

I completed a project a year ago. Now a few modification were needed. While trying to test the site, there was an index.html file with a malicious script which had an iframe to another site's jar ...
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1answer
24 views

MacAfee AV Removal Trouble

Has anybody had a difficult time removing MacAfee AV software? I tried removing it from the control panel and it says I am not allowed to remove this program at this time?
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1answer
69 views

Preventing Anti virus conflicts

I have HitmanPro, Anti-malwareBytes, and ESET installed on the computer. Is there a way to disable the real time functions of one or more of these to prevent conflicts and improve performance? ...
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0answers
17 views

java.exe heavy reading of symantec virus definition

I've noticed that a java application (IBM Webpsphere) is running slower than it used to be and doing a lot of IO. When I opened process monitor I saw a weird behavior: it was reading Symantec virus ...
3
votes
1answer
85 views

How does avast! add a signature into my webmail?

I have the free version of avast! installed on my computer. When I just sent an email on https://mail.google.com with Firefox a signature was added, saying that the sent mail is Virus-free. www....
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0answers
44 views

Add link to Kaspersky whitelist in order to unblock it?

This window appears every 10 seconds saying "Malicious link blocked". I believe that the link is secure. How could I add this link to Kaspersky whitelist in order to unblock it? Note: I'm using ...
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0answers
49 views

McAfee Virusscan 8.8 - Access Protection component installation check

I'm working in an enterprise where we have to actively roll back McAfee Endpoint Security 10.1 to Virusscan 8.8 and related components. This question is about the Access Protection component that goes ...
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1answer
13k views

Is running windows defender with malwarebytes safe?

In previous versions of windows, windows defender could safely be run with any other AV. However, with Windows 8, Windows Defender is essentially MSSE, which is an actual AV. Can they be run together ...
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0answers
351 views

where can I find a Locky Ransomware virus samples?

I need a locky ransomware virus sample to test it on VM for my project. Where can I get one working sample ?(Any microsoft word or excel files would work)
15
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4answers
11k views

How to be certain you don't have a virus when anti-virus scanners find nothing malicious? (Windows 7)

I recently spent many hours troubleshooting a laptop that could not connect to the internet. The laptop exhibited no other unnatural behavior, and so my first thoughts were to try connecting to other ...
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2answers
62 views

How to overcome antivirus false positive error

We develop software which will upload the files to a website. We are facing the false positive error from different antivirus vendors. We have update file, downloader exe(which download the files from ...
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1answer
68 views

Effect of “windows defender is taking action to clean detected malware”

Sometimes I get this message, but when I look at the history of windows defender, I see nothing. I am scared that windows is mistaking something important for a malware and deleting it without me ...
-1
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1answer
44 views

ZIP File Viruses

If I open a ZIP File, and attempt to open an example of "Virus.exe", my antivirus tells me that this file is unsecure or whatever, and I press on Don't run, is there still the possibility of my ...
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0answers
57 views

Why is my Antivurus finding a virus on StackOverflow?

This came as a total surprise to me. I am using Avast Antivirus 11.1.2253 with virus definitions version 160330-3 on a Windows 8.1 and a Firefox browser. The issue: While reviewing some SO ...
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0answers
50 views

Avira reports a hidden driver or memory modification, how can I find location

My problem is the following: On Windows 7 I did a scan using Avira and it says: Hidden driver [NOTE] A memory modification has been detected, which could potentially be used to hide file ...
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2answers
2k views

What's the difference between “anti-virus”, “anti-malware” and “anti-spyware” tools?

Many products (such as Norton or McAfee) advertise as "anti-virus" tools or suites, while others advertise as "anti-malware" (like Malwarebytes), and even more as "anti-spyware" (Spybot S&D). Are ...
3
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2answers
89 views

How do I stop this active malware alerted by Avast?

I am not knowledgeable on how to find adware/malware beyond scanning for it with whatever protection software I have. I avoid suspicious websites and often get popups from Avast if a page is infected ...
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0answers
34 views

Symantec cloud antivirus now blocks Git, SSH, Cygwin

I run Symantec Cloud Antivirus on Windows. Recently, after an upgrade, it started blocking SSH, Git, Cygwin. In particular, it deletes git, says it fails a SONAR Heuristic, and doesn't seem to give ...