Antivirus or anti-virus software is used to prevent, detect, and remove malware, including but not limited to computer viruses, computer worm, trojan horses, spyware and adware.

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How can NSA implants and backdoors be detected? [closed]

It has been a while now since the Snowden revelations of various NSA malware and backdoors. For instance: March 12, 2014: NSA has developed implants to take over targeted computers’ microphones ...
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Computer worms, propagation and exploiting vulnerabilities

I have been referred here to ask this question, so I am doing a research on computer worms, I have been through several sites and a few caught my attention, I have learnt that worms propagate through ...
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Signature-based antiviruses

Do signature-based antiviruses search for the exact matches of the signatures they have in their database with those of viruses to analyse ? I ask this question because I wonder if it is the reason ...
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9answers
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I only use windows for games. Do I need anti virus protection?

I use Linux, and even though I'm not pretending my system is virus-free, it's generally accepted that even an aggressive firewall is not a requirement. I want to install Windows 7 on a machine which ...
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1answer
158 views

Using multiple AV's

As my computer is currently set up, I have 3 AV's: AVG (paid), Malwarebytes, and Spybot S&D. I think that each one of these serves a purpose: AVG gets your real malware - Trojans, Worms, etc. and ...
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311 views

Digital Signature Software

What is the digital signature software? What it takes to digitally sign software? I'm using the Kaspersky antivírus and the software I wrote, in Delphi, is flagged by the antivirus software due to ...
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Enterprise Anti-virus for Linux?

I know this question is probably at risk of offending the guidelines but our IaaS provider was unable to offer us an anti-virus solution for our Linux servers. We are deployed in an enterprise cloud ...
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How would I know if my Apple Mac has a virus, and what can I do if I have? [closed]

I have used PCs for most of my life, and I am very aware of the fact that they can catch a variety of viruses. I have owned a MAC now for two years, and have enjoyed a pleasant (perhaps too pleasant) ...
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Virus scanner on server

I see lots of people claim virus scanners are unnecessary on a linux server. But if this server accepts files uploaded from users (and lets others download them), does it become worth it to scan the ...
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To which extent are paid alternatives to Apple's Xprotect worth it?

Mac OS X ships with Xprotect, Apple's mechanism to detect and remove malware. System software security holes are patched decently quickly. In a world of fragmented, code-signed, sandboxed apps, what ...
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Are two anti-virus better than one in protecting your computer?

A century old adage: The more the merrier. In general, does this adage hold true in regards to the number of anti-virus software you should have on your PC? Are there any limits before it actually ...
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841 views

Anti Virus Intergration

we have found an issue with some production systems that the Anti-Virus causes the program to become slow a lot of the times and generally interferes with the activity of our software. Now as far as I ...
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4answers
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What are the arguments for and against having anti-virus on domain servers

I have been hired at a start-up where I seem to have become the de-facto admin despite being hired to do application support (to be fair I do have a background as an all-rounder). Amongst the ...
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What patterns does a signature based anti-virus look for?

I'm working on a uni project where I will attempt to create a malware that uses some form of genetic algorithm to "evolve" itself out of being recognized by a signature based AV software. For this I ...
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760 views

Is anti virus software supposed to clean up registry entries made by malware?

I just cleaned up a virus infection on my computer (running windows) by running an Anti Virus Scan. The malicious executable files are now deleted. However, the registry entries made by it remain. ...
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Clamav can't detect encoded virus files

I have a PHP sheller file (like c99 file) but it's Encoded ( with this functions: eval(gzinflate(base64_decode("7P3rehblahblah)) ) and the clamav virus scan can't detect it. How i can detect virus ...
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Is it worth it to get paid anti-virus software?

With the rise in cybercrime, I am slightly worried about my computer security. I have been using open sourced anti-virus AVG for years and it has been doing well. Are anti-virus software like Norton ...
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1answer
550 views

My home PC was hacked and accessed my bank! Advice on next steps? [duplicate]

I recently setup a new Win8.1 PC while still working on my main development PC so it did not have all of the security tools that I usually install, e.g. malwarebytes, adaware, etc. Since it takes me a ...
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262 views

WDF-based vs WDM-based drivers

What pros/cons of WDF driver model vs. WDM for rootkits and antivirus drivers. From what I've seen and from personal experience (though I'm still a newbie) WDM is good in that you have to do most of ...
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928 views

Can signature-based Antivirus detect encrypted malware? [duplicate]

How effective signature-based Antivirus is, in detecting encrypted malware?
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121 views

What protection certificates would be required for an application that consists of setup, loading utility and main application?

Say we have an InnoSetup installer script, a native C++ QT files loading application and a .Net client application that we load/update each time and which is the main application. We load files via ...
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3answers
416 views

What kind of software can be used to remove Rootkit.Sirefef.Gen? [closed]

My System has the rootkit Rootkit.Sirefef.Gen. I would like to know how I can remove this rootkit.
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4answers
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What is the difference between antivirus and firewalls

I need a brief explanation about the differences between antiviruses and firewalls
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891 views

How to keep Mac secure from viruses, malware and keyloggers?

How can I download and install software and make sure that it is not infected with viruses, malware or a keylogger? Also, I heard that Macs "don't get viruses". Is this true? Is it a good practice to ...
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184 views

What security products are necessary or advised for a home computer running Windows?

There is a lot of security related products for home users and it is becoming unclear what the difference is between them. What is the difference between antimalware, antispyware, antiadware and ...
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Is there a down side to how so many security products bundle multiple components into one these days?

For example it seems like anti-virus, anti-spam and firewalls have sort of merged into one product. Is there a downside to this? I don't know of any software firewalls that can be purchased without an ...
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A new virus with unknown function

We have detected a new virus that was sent to us by mail. The email contained a zip file which contains an executable with the same name. As a first step, we uploaded the file to virustotal, to be ...
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Are KIS 2014, Malewarebytes Pro and SpyBot sufficient to prevent internet attacks?

As mentionned in the title, I have KIS 2014, Malewarebyte Pro and Spybot installaed on my windows 7 (regularly updated). I regularly scan my pc for viruses and spywares and clean it with Glary ...
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Antivirus keeps blocking connection from a file I don't recognize

This is a follow up to this question. I've finally tracked down the file Avast keeps detecting and it's C:\Users\Jacob\AppData\Local\Updater.exe , I've no clue what this file is for , but am wondering ...
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188 views

someone claims to have created such a malware, can he be true?

These are not my lines they are by someone else on the internet. I also want to know is that malware that unique? How will it work in GPU and is there a way to sandbox such application? "HERE GOES ...
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Is there a hash algorithm that can identify similar files or strings?

Is there a hash algorithm that will help you identify similar files or strings? For example, the hash for ABC and XBC would be similar rather than radically different as is usually the case. I know of ...
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Antivirus / Wireless PCI v2 Controls Scope

Do the Antivirus / Wireless controls within PCI v2 apply for the entire organisation, or just for the PCI scope?
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658 views

Protecting Backups from Viruses

Currently we are using ReadyNAS by NETGEAR to hold all our images from all our machines. My question is can viruses expand from the machines and infect the NAS drive and the backups? We are using ...
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Scan password protected email attachments for malware

We have an email policy that prevents email from going through if it has password protected archive files attached. This is to protect users from viruses and trojans because the contents of the ...
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Manual Checks for Signs of Infection on Windows 7

Suppose I wanted to run some manual checks to see if my Windows 7 machine has been infected. I don't usually do anything to get it infected, but I would like to check whether the below steps are ...
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MacOS: quarantining data for import

I have collected over many, many years data from many sources, some of which could be questionable - for example an upload page on a web server at home - to the point where I don't completely trust ...
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Possible to detect packed executable?

A packer is a way of obfuscating an executable program, i.e., transforming so the result is still executable and has the same effect when run, but looks different (so it won't be detected by static ...
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How dangerous is Exploit.LNK.BadLnk.a (v)?

I have encountered a supposed low level eploit on my network at work, by the name of: Exploit.LNK.BadLnk.a (v). I have torn through pages of entries on google trying to find information on this bit of ...
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What is “KDV” in antivirus databases?

I scanned a file (virus) on VirusTotal and 3-5 antivirus labelled it as Generic.KDV.549626 Is there any central "KDV" database where all the entries related to a virus are stored?
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How does Look Out Secuirty and Anti-Virus determine if an app is harmeful?

For Android Lookout can scan an app before it is installed, and I think it scans a new app the first time it runs too. It displays the message "this app is safe" and I'm wondering, how does it ...
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Does validating a mime-type reduce or stop the need for virus scanning?

I am building a small web app in php, that accepts .doc /.docx / .rtf and .txt files. I've validated them against their mime-types. But now I'm thinking about virus scanning. I know there are systems ...
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Does anyone know how Avast File Reputation works?

Whenever I'm programming in C++, after I run a new executable, Avast suspends it informing me that "not much is known" about the file and asking if I'd like to continue execution or terminate the ...
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EMET and AntiVirus

I've just heard about and started playing with EMET and I am curious, do any AV or security suite applications do what EMET does or is EMET something entirely different?
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554 views

AV boot disks and Truecrypt encrypted drives

I was wondering if there were any "how-to" guides on what is needed to modify AV boot disks, such as Sophos, kaspersky, AVG etc in order to load the decryption drivers/bootloader for Truecrypt before ...
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1answer
111 views

Antivirus scanning [closed]

I use the avast free antivirus ... and i sort of noticed a very strange occurrence. Whenever I scan a document from avast, the application scans more data then there is on the document. For e.g., if ...
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2answers
246 views

How does a virus scanner inspect URLs entered in a browser?

I have a virus scanner installed (avast on Windows 8) and it blocked the access to malicious websites in Chromium. There's no proxy activated in Chromium so how is the scanner capable of rejected a ...
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437 views

Excluding executables in winsxs folder

I am facing a big problem since there are many msbuild.exe files in .Netframework and winsxs folders and I don't know if it is required to set all of them as trusted in the antivirus. The path ...
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How to check if your computer has a backdoor installed on it? [closed]

Just some time ago I had this unusual popup from Malwarebytes Anti-Malware (MBAM): I did a quick Google of the IP address and found this thread where the OP is complaining of MBAM blocking svchost....
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Study roadmap to write a crypter / backdoor

Recently I came across a site called SecurityTube.net, which has a ton of amazing security stuff. I'm following their Python Scripting Expert videos which are totally worth it. I also came across the ...
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Windows PE file and Malwares

Trying to understand how and why any virus, malware, worm and code injections are successful after all in a Windows Portable Executable format. I was going through the PE structure documentation, ...