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

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344
votes
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 ...
34
votes
4answers
42k views

Is my host machine completely isolated from a virus-infected virtual machine?

If I am running a Windows 7 virtual machine on a Windows 7 host using VMWare or VirtualBox (or anything else) and the virtual machine is completely overloaded with viruses and other malicious software,...
12
votes
6answers
6k views

Does the Virtual PC XP Mode need safety measures?

Does the Virtual PC XP-Mode (or any other virtualized mode) require safety measures, such as antivirus or a firewall? I'm just wondering if the XP-Mode would be a large security loophole, since it's ...
11
votes
8answers
1k views

Is Anti Virus Software needed for a Mac (OS X); If so free solution? [closed]

I have a MacBook that I use for programming and graduate school work. Since I bought it, I've not given much thought to putting an anti virus on it. I bought it about 6 months ago and for some reason, ...
8
votes
3answers
5k views

Does Windows 8 require any sort of Virus protection? [closed]

I have read about how Windows 8 is better and has better built in security... So the question is, do I really need third party Virus protection, or is the built in security good enough?
4
votes
9answers
2k views

Virus protection for flash drives

At school, there is a large network with lots of non-technical minded people and lots of viruses. How can I protect my flash drive from these worms and viruses so I don't bring them home and infect my ...
11
votes
4answers
4k views

Recommended offline on-demand virus scanners

I have never run full anti-virus on my Windows XP systems. Instead I use various anti-malware tools to manually perform scans every few weeks. This approach, combined with Windows updates and ...
7
votes
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 ...
6
votes
1answer
249 views

Does it make any sense to install anti-virus on Windows XP Mode? [duplicate]

This is almost certainly a dumb question, but... say I have Windows 7, with some anti-virus software installed, and I am using Microsoft's Windows XP Mode to run some legacy applications as well. Is ...
5
votes
3answers
3k views

Should I enable Firewall and AntiVirus on a VirtualPC VM? [duplicate]

I run W7 64-bit with windows firewall + MSE running, and there is a firewall on my router also. I want to run a VM (probably using VirtualPC which comes free) but I'm unclear if this is guarded by the ...
1
vote
2answers
7k views

Move Kaspersky Virus Definitions Update to Another Computer

Is it possible to move Kaspersky virus definition to another computer? I have two computers, both PCs, which Kaspersky is installed on. My Internet connection is slow and my Bandwidth is limited. I ...
59
votes
6answers
4k views

Is there a point in installing antivirus on Ubuntu?

I have recently started using Ubuntu. I am wondering about the point of installing antivirus programs on Ubuntu. On SuperUser, I found the opinion that it only detects "windows viruses" and removes ...
54
votes
5answers
3k views

How do anti-viruses work?

So I was thinking about viruses recently, and wondering how exactly antiviruses keep up? Considering anybody who'd been coding for a few weeks could hack together something do do nasty, nasty things ...
19
votes
6answers
1k views

Should I worry about malware on Linux? [closed]

I don't run an antivirus on Linux ( most people I don't AFAIK ) and I'm not at all concerned about any form of malware or spyware or any other_bad_ware. Should I by concerned? Of course I don't ...
6
votes
6answers
4k views

Clean up infected computer from viruses [duplicate]

Possible Duplicate: What to do if my computer is infected by a virus or a malware? I have a computer which had AVG Free installed from day one. After several months of operation, it starts ...
5
votes
7answers
589 views

Least disruptive anti virus while working [closed]

Looking for an anti-virus software free or commercial that minimizes the impact on the user when the anti virus is performing a real time scan or when doing a full system scan. Background: At work we ...
3
votes
3answers
3k views

Live CD with good anti-virus software to scan/repair Windows?

I browsed through the archives, and it seems like there's no live CD from which to run a good, up-to-date anti-virus application, at least to check whether a Windows host has been compromised The ...
8
votes
2answers
659 views

Can I fool Windows into thinking a virus scanner is installed?

I'm trying to allow programmatic access to Outlook without getting an annoying popup. This is configurable under Tools -> Trust Center, however my outlook warns Antivirus Status: Invalid. Which ...
7
votes
4answers
427 views

Is there any 64-bit software for Windows that is much preferable to its 32-bit counterpart in a 64-bit OS?

I was searching for a free 64-bit antivirus, since I read somewhere here on SU that its much better for 64-bit systems than the 32-bit version, I have only found 32-bit versions with 64-bit OS support....
3
votes
5answers
5k views

I can't open/ping any antivirus sites

I have a problem with a virus in windows 7, I don't know what kind of virus is infected my OS, I installed kasersky antivirus, and clear all detected viruses. After that I can't open any antivirus ...
3
votes
5answers
595 views

Cannot uninstall Avast Free Antivirus

Why can't I uninstall Avast Free Antivirus? It always says "there is an error" that occurred and doesn't uninstall the product.
3
votes
1answer
4k views

Why is it bad to have two anti-virus systems?

Why is it bad to have two anti-virus systems? It could be useful to get better detection rates. In the second post from the top of the page Stranger claims it's not bad to use two antiviruses as long ...
3
votes
3answers
2k views

Installed new Antivirus Software now Computer is extremely slow! Can I fix that?

Yesterday I installed a new Antivirus as my old licence was not valid anymore. I chose the free Avast. Now the pc is extrem slow. It takes about 8 min to start (before with Kaspersky it took 2 min). ...
2
votes
4answers
190 views

How must I deal with anti-virus software on Windows 7

I know this question is looking like an easy question or not a question at all but it's not really easy question. I'm not related to security and anti-viruses and just don't trust every provided anti-...
1
vote
1answer
4k views

Updating Symantec Enpoint Protection's Proactive Threat Protection Without an Internet Connection

I have a computer that is not connected to the Internet. I update Symantec Endpoint Protection's Antivirus and Antispyware Protection manually. The Proactive Threat Protection always says "Waiting ...
1
vote
1answer
2k views

Got ransomware and Shadow explorer dont work

I got infected by the CTB Locker and probably I have removed the virus itself. But the files all got polluted. I tried to use shadow explorer but it shows all blank in CDEF any drives and got no dates ...
1
vote
1answer
1k views

Is Microsoft Security Essentials a solid security suite [duplicate]

Possible Duplicate: Would Microsoft Security Essentials be adequate protection? With the release of Microsoft's new Free security suite; Microsoft Security Essentials, the question has to be ...
4
votes
18answers
999 views

Is free security software as good as paid security software? [closed]

I mostly use free security solutions to protect my home PC, but I wonder if I would get better protection from a paid solution. I prefer the free software, since I can have multiple applications ...
11
votes
1answer
41k views

How to disable/enable Microsoft Security Essentials from the command line?

I would like to know how to disable and enable Microsoft Security Essentials from the command line. This is a common procedure on build machines in order to speed-up the build process.
9
votes
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 ...
2
votes
2answers
2k views

How to quit Avast temporarily?

I know how to shut-down Avast's shields (the options range from disable for 10 minutes to disable permanently). However, just a few minutes ago, the process AvastSvc*32.exe started consistently ...
4
votes
2answers
1k views

Antivirus impact on SSD

I've just purchased an OCZ Vertex 2 SSD drive and I'm trying to understand how various pieces of software could impact it. I'm going to be running Windows 7 on it. My current choice of antivirus ...
3
votes
1answer
354 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 ...
2
votes
4answers
2k views

64 Bit Free Anti Virus [closed]

Related Question Free Antivirus solutions for Windows I am looking for a free native 64 Bit Anti virus package. I know lots / nearly all packages will run in 32bit emulated mode, but I can't seem ...
2
votes
4answers
5k views

How to check for false positive?

Looks like I've been infected by a virus, namely NSIS:Downloader-BX [Drp] in file named DpiSca.exe but... I wasn't visiting any usual suspect sites (warez, pr0n etc) and nobody else was using my ...
1
vote
1answer
205 views

Can Windows based computers ever be secured? [closed]

In light on this excellent article series by Ars regarding the black security work by HBGary - HBGary claims to have coded several rootkits and had access to 0-day exploits that could compromise a ...
1
vote
1answer
4k views

Anti-rootkit tool for Windows 7

Which anti-rootkit tool runs under Windows 7? I tried icesword 1.22 and darkspy 1.05 but both failed to start. Icesword gives me this error: Initialize failed[1]! And Windows tells me that ...
0
votes
1answer
218 views

What is the “lightest” -> not messing with system registry antivirus [closed]

I am looking for antivirus for one shot. Just scan every piece of the system and delete the antivirus itself. I know that they are messing with system registry, slow down the system. I want to be sure ...
4
votes
4answers
595 views

Can other Antivirus solutions be used with Windows 8? [closed]

There is built-in AV software in Windows 8, will it will turn itself off when I install antivirus from another vendor? Should I install another AV, or will default one suffice?
4
votes
4answers
2k views

Why did my friends get spams from my email?

Recently I got an email with subject like "Delivery Status Notification (Failure)". It had been initially sent to my friend's old email account. The content inside that failed email was obviously one ...
3
votes
4answers
370 views

Does Mac OS X need an antivirus [duplicate]

Possible Duplicate: Is Anti Virus Software needed for a Mac (OS X); If so free solution? Should people running OS X get antivirus software?
3
votes
7answers
1k views

Microsoft Security Essentials for a business

This is 2 questions really - Am I allowed to install Microsoft Security Essentials 1.0 in a business of 200 - 300 users? Is Microsoft Security Essentials 1.0 adequate protection (real-time scanning,...
2
votes
4answers
3k views

Anti-virus live CD [closed]

I'm looking for a Linux Live CD/USB, that comes pre-configured with basic troubleshooting software, which I could use to check Windows computers. My wish list: Anti-virus (MUST HAVE) Any software ...
2
votes
3answers
1k views

Microsoft Security Essentials 2.0 uninstalled themselves without me doing anything

I left my Windows 7 x64 PC to do a backup overnight and when I looked at it in the morning, there was a pop-up saying I should go online to find an antivirus and enable windows defender. Turned out ...
1
vote
2answers
4k views

Removing a rootkit from the MBR.. without formatting?

I have run hitman pro and found 'traces of the TDL3 Alureon' rootkit on the computer. However, running TDSSKiller would of solved this issue - but - apparently the symptoms keep coming back so I ...
1
vote
2answers
356 views

Cryptolocker virus removal

I am facing cryptolocker virus problem, I have tried decryptcryptolocker website but it did not work. In the below link you will find an example encrypted file in my pc. https://docs.google.com/...
1
vote
1answer
765 views

Browsers forwarding to random website automatically

i have a strange problem... whenever i type any website name in the browser (mozilla or IE), instead of showing the website i typed it forwards to another website this happend when i installed a ...
1
vote
2answers
4k views

How do I remove McAfee Antivirus from Windows Home Server?

How do I remove McAfee Antivirus from Windows Home Server? I have been unable to find this option on the WHS Console.
1
vote
2answers
2k views

Real-time Antivirus in Ubuntu [closed]

I need to find a real-time security solution for Ubuntu. I already tried ClamAV (with ClamTK), Bitdefender Scanner for Unices, and Avast4Linux Workstation, but they all are only scanners, and they don'...
0
votes
1answer
10k views

How to disable Symantec Endpoint Protection antivirus?

I am running Symantec Endpoint Protection under Windows XP. Even when I click "Disable Symantec Endpoint Protection" on tray-menu, antivirus still doesn't allow to copy files which it finds suspicious....