Malware (short for Malicious Software) is a type of software designed to access a computer system without the owner's informed consent.

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How do I stop chrome from redirecting me due to malicious software [duplicate]

When I click some links in chrome (trusted websites), I get redirected to 'spam' websites that say "your computer has viruses" or something stupid like that. How do I stop it from doing this? I have ...
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1answer
884 views

What is the executable /usr/bin/host on linux good for? Can I kill it?

So I had a compromised /usr/bin/host process running and trying to open HTTP requests out of my machine. I killed it. But now I am wondering. Do I need /usr/bin/host for anything? How do I re-install ...
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2answers
1k views

What is mac process “Wi-Fi”

I am running Mac OS X Yosemite. Today I ran across a process named "Wi-Fi" in Activity Monitor. The name catches my attention so I google around, but found little info about what the process ...
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1answer
120 views

Why does this program give a Windows 8 SmartScreen warning?

Why does this program http://creativeadept.com/download-spintax-editor/ give me a SmartScreen warning in Windows 8 when a Malwarebytes scan and Windows Defender scan found nothing? What is wrong ...
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1answer
72 views

Does marking files as readonly make them secure?

In Windows (or any OS, really), does marking a file as "Readonly" make it less susceptible to malware and unwanted manipulation? Additionally, should I still scan readonly files for viruses and other ...
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0answers
84 views

Is this malware?

I have a machine running Linux Mint (qiana). I noticed it was often slow and when I looked at top I found PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
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1answer
179 views

Automatic password reset prompt on Windows 7?

My wife just told me that earlier today she received a prompt on her laptop to change her password, and complied with the request. Her laptop is running a vanilla install of Windows 7, 64-bit. All ...
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2answers
1k views

How to remove Buzzdock ads from Google search results?

Everytime I search for something on Google, I get this block of Buzzdock ads, as you can see on the screenshot. I am trying to get rid of this. I've already unistalled a program called "Buzzdock 2" ...
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80 views

Computer malware injects scripts causing full of javascript errors

I have a local browser application (written in php, running on usbwebserver) which runs fine on all of my users' computers except for one. When i checked the app, it seems that there have been ...
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2answers
609 views

csrss.exe anomalies, is this a rootkit?

I'm seeing a strange anomaly in some systems I support. GMER flags the cdd.dll thread in csrss.exe, and when I run Process Explorer with Elevated Admin rights, I am: unable to view any loaded DLLs ...
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1answer
283 views

How do I permanently get rid of “bigdeal” malware? [duplicate]

I'm very conservative in how I use my computer (no illegal software, no strange downloads) yet still managed to get infected by a very annoying piece of malware. I presents itself mostly in Internet ...
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0answers
77 views

Single machine on my network can't load a specific website

One windows 7 machine on my local home network is having trouble loading www.reddit.com I'm on a hardline into a linksys e1200 router. Other devices (laptop, phone, etc) have had no issues (wireless ...
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2answers
2k views

Reinstall Windows 7 after using DBAN?

I'm preparing to sell a computer. It came with Windows 7 (no install disks). I want to wipe all my data in the most secure way possible, (not just remove links, but overwrite the drive). My goal is ...
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1answer
37 views

random filenames on external hdd drive

i am in big troubble. My friend gaves me his external usb hdd drive and told me, his files are deleted and renamed. I just want to restore the data with the program "recuva" but it dosn't work. I ...
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2answers
492 views

How to remove BUYUNLOCKCODE Ransomware

A ransomware appears to have been circulating for the past few weeks. the data files will be encrypted and a BUYUNLOCKCODE.txt ransom note will be created in all directories where a file was ...
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1answer
113 views

How can I restrict access to a backup drive to only one program in Windows 7?

I got an old computer from some friends, so I decided to wipe it and set it up as a home NAS running Windows 7. My plan is to have two external drives: one as a network-accessible, read/write device ...
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0answers
54 views

how can i found the source of a malware that is trying to force-open a website

For the last 3 days i've been seeing this warning from Avast every 2-3 hours : I have no idea how to track this and make it stop, i scanned my computer and avast didn't find anything suspicious, the ...
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2answers
35 views

How do I delete files that are locked when no other app can delete them?

So I found out that I had a Trojan on my external hard drive. My anti-virus app killed it, but it has created a bunch of random files on my computer which cannot be deleted. These are image files. ...
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2answers
148 views

Possible malware modification of Windows registry entry

I found a strange entry in Windows registry on two of my PCs, and posted it as a question on Stack Overflow, here: ...
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0answers
362 views

Suspicious NetBios Name Service traffic

A friend of mine recently complained about the very bad performance of the Internet connection over her family's LAN. Apparently the Internet connection worked normal most of the time but certain ...
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1answer
792 views

Malicious pop-up in Chrome: “WARNING! Please Install Update To Continue.”

Does anyone know how to get rid of this pop-up: The page at new1getallfilesnow.maynemyltf.netdna-cdn.com says: WARNING! Please Install Update To Continue. OK
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1answer
217 views

Botnet/Virus Removal? [duplicate]

I am not sure what type of virus I have on my computer, and I am not sure if this is the right site to ask this type of question on, but here it goes: About a month ago I downloaded something i ...
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1answer
47 views

who is the administrators? extra admin user thats hidden

Some of my files on win7 64bit I have found have a user called administrators not administrator. This is a second hand laptop so Id like to know how to correct this if its a back door or something ...
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2answers
57 views

How to find which program is reading a file?

I tried delete some file but windows 8.1 reported that access is denied, which other program might read that file, but I don't run any. So it is maybe a harmful program. How can I find out which ...
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4answers
17k views

Removing invisible extension “happysale” in google chrome

The extension "happysale" is showing ads by "gifton" in Google Chrome and Mozilla Firefox, and I seem to be unable to remove it. When I go to extensions in Chrome I can't see it, but when i go to ...
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1answer
339 views

Cleaning a compromised Router?

At the office I noticed malware symptoms on one of the computers. I tried cleaning it and found nothing. Then I noticed I got the same behavior on my phone and the other computer: occasional links ...
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254 views

Manipulating firmware of USB flash drives

As far as you may know, about four month ago, a new malware-like program found that was infected USB device's firmwares. (Take a look here) I want to know, how it is possible to read and modify ...
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2answers
3k views

Stubborn Startup Page - MyStartSearch - mystartsearch.com

Just earlier I opened IE to go check my emails, etc... but my startup page is not google anymore as it previously was. The startup page was instead some "mystartsearches" thing which I had not ...
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1answer
490 views

Can an infected Android or iOS phone infect a PC running Windows?

I realize that any .apk may not run on Windows via anything other than an emulator, but my instructor insists that it can. Here are my objections: Can I infect the computers at school with my ...
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1answer
24 views

What are these files that defy file permissions to be inaccessible?

Every once in a while in our environment the AV comes across a malicious file, usually in a users temporary internet files, that no matter what I try, I can't edit, move, copy, or in any way access ...
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0answers
45 views

Windows 7 common search engines hosts don't work or responde to icmp

I have a windows 7 computer every site works... EXCEPT google.com, yahoo.com duckduckgo.com The websites IP also does not answer, the webpage keeps trying to load but the HTTP/ICMP request leaves the ...
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4answers
6k views

What is Best-Deals-Products and is it malware?

I have found something that I suspects to be malware/addware. Script is added in every website I visit, even once I made myself. This is added in the : http://puu.sh/dgIF0/0c452eb390.png and iFrames ...
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1answer
449 views

laptop shuts off out of sudden when the fan suddenly stops spinning

My laptop recently got an issue. it will shuts down during loading when I turn it off repeatedly. it got worse during time, previously, if it happens, next try the laptop would work fine, but now, I ...
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1answer
56 views

How to remove pice0chop extensions from Google Chrome?

How do you remove Priceochop 3.9 and proiCechOpe 3.9 from Chrome? Both show up in chrome://extensions and once plagued my browsing experience with advertisements. Now they effectively do nothing as ...
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1answer
6k views

How to remove osx kernel extension

I am trying to remove a kernel extension but every time i restart it keeps coming back how to permanently remove it? i believe this com.ab.kl.engine is some sort of spyware output of: kextstat | ...
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2answers
49 views

Does not setting a wifi password allow malware to more easily jump between computers?

Does not setting a wifi password allow malware to more easily jump between computers? (Some users don't set wifi passwords if intruders aren't able to get within range of their wifi.)
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1answer
429 views

Fix 0xC0000005 application crash error?

Almost all my installed programs (Firefox, skype, other 3rd party programs, ...) crash. They all assigned with EventID:1000 and Exception code: 0xc0000005. I have tried to change the memory but ...
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1answer
79 views

How can I grant user rights to prevent my mom from installing spyware?

My mother is a schoolteacher, and has an uncanny knack for inadvertently installing spyware/adware/malware whilst surfing the internet. She has a Win8 Laptop, and needs to have access to Office for ...
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4answers
842 views

Can I remove nengine.dll from my machine?

I recently started seeing an error message when starting up my pc: nengine.dll is not a proper application extention. Not recognising this nengine.dll, I did a quick search online and found it's ...
24
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1answer
14k views

Why do I have two desktop.ini files on my windows 8 desktop?

When I try to delete one of these two shortcuts, a message appears saying, "If you remove this file, Windows or another program may no longer work correctly."! I don't think that it is possible to ...
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2answers
531 views

How to know your Mac is not compromised (software and hardware) after lending [closed]

Is there a way to find out if your Mac has been compromised software and hardware wise? I have a pre-unibody MacBook (2007), and it was in someone else's hands once. I want to make sure: the person ...
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0answers
4k views

How can I remove the ads by browser shop virus? [duplicate]

I've tried what everyone says to do, like removing the programs and resetting ALL my browsers and reinstalling chrome and firefox, and I've run scans with malwarebytes, adwcleaner, hitman, basically ...
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1answer
55 views

Is webinternetsecurity a threat to a network and how to remove completely?

I am in IT and one of our computer was detected to have a trojan virus. It was detected as Artemis!294D8BF17879. It turns out to be an application called WebInternetSecurity that appears to create ...
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0answers
3k views

How can I use Decryptolocker to decrypt all files in a directory?

I have downloaded Decryptolocker and have the key required to decrypt files. The instructions state to use it as: Decryptolocker.exe --key "<key>" <Lockedfile.doc> How can I use it on a ...
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3answers
99 views

Impossible to access/add local network PC/drives after malware [closed]

My PC was infected by a rootkit virus along with some malwares. I fully cleaned it using MalwareBytes AntiMalware, Anti-Rootkit, ADWCleaner and RogueKiller, so I know it's clean. Since the infection ...
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1answer
1k views

Do I need to be concerned using the Git Bash on Windows with Shellshock?

I use the Git Bash on a Windows 8.1 machine. Do I need to be concerned by Shellshock?
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3answers
974 views

Can't fix file association after removing unwanted junkware

I am having issues with my Type of file parameter, and default opening. As you can see in the "open with" window, the option to select default is greyed out. On the left it says that the type of file ...
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1answer
622 views

Need to change the “auto detect” proxy settings in Windows

I downloaded and accidentally installed some nasty malware from CNET.com. I've finished cleaning up most of it, but there is one setting I haven't been able to get back to normal. In several programs ...
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8answers
17k views

Chrome works only outside of sandbox?

I have been trying to solve this problem for a long time. I have been using Chrome for more than 4 years, it is the best browser for me. Suddenly, Chrome stopped working. I tried uninstalling it and ...
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27 views

How do security firms find out whether 3rd party software is safe? [closed]

What processes do professional software auditing and security testing companies follow to determine if a software is "safe" to use. Say, someone writes malware that behaves itself 99.999% of the ...