Questions tagged [anti-virus]

software used to prevent, detect and remove malware such as computer viruses, computer worms, trojan horses, spyware and adware.

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1answer
2k views

How do I uninstall Trend Micro Security Agent?

I have been trying to uninstall the Trend Micro anti-virus software on my Mac (10.13.6) and have been encountering a lot of difficulty. Trend Micro's website refers to a couple of uninstaller options, ...
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1answer
19 views

Sophos AV always runs double instances of it's app. How do I just have 1 running?

I run Sophos Anti-Virus on macOS Mojave and it always runs two instances of the app. It has 2 menu bar icons and it runs as 2 separate processes. When I attempt to quit or force quit either of the ...
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1answer
318 views

What is the function of `Library/Application Support/updater_mcy/updater_mcy` file?

My Avast security app has isolated the following file: Library/Application Support/updater_mcy/updater_mcy Since this has happened, I think it has resulted in me getting error messages on my Mac ...
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2answers
11k views

How to disable or remove the YaraScanService (MRT.app)?

Recently on MacOS 10.13.6 I have noticed high CPU usage and identified the process YaraScanService as consuming close to 90% CPU. The Activity Monitor lists it under: /System/Library/CoreServices/...
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How can I restrict restrict an apps permissions to a specific file?

I intentionally have downloaded the virus lose/lose. My antivirus keeps quarantining it, so I'd like to change the apps permissions so that it can't access lose/lose.zip. How can I change the apps ...
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1answer
371 views

There is a broken Sophos entry in Keychain Access after uninstalling the program - how do I remove it?

I've followed the official instructions and also tried running the official removal tool (which btw hangs) for Sophos anti-virus for Mac but I still see a "Sophos" entry in Keychain Access. I have ...
2
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1answer
536 views

Shove installed a launch daemon or agent popup window, what is it?

Please check the following screenshot: Today, I suddenly have this popup window warning. I have no idea what it is. Basically I have three questions. (1) Is this BlockBlock app warning? I have no ...
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2answers
754 views

Is there any antivirus software that DOESN'T slow down Time Machine?

Time Machine making a backup to my TimeCapsule has been extremely slow. I finally figured out that it was an issue with Avira Antivirus. So I looked for a better software. Seeing the reviews I went ...
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3answers
37k views

How to open files from unknown developers without a warning in OSX?

I believe I have too much security on my mac. Whenever I try changing a file name or install a program I have to enter my laptop's password. Moreover, I cannot quickly access downloaded programs ...
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1answer
6k views

What security preferences are blocking McAfee?

I changed some of my Macbook's security settings today. I also updated to the latest version of High Sierra (10.13.4) shortly before changing my security settings. Shortly thereafter, I got the ...
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5answers
2k views

Anti-virus comparison for Mac OS X

This is not a "I use OS X, do I need Anti-Virus?" question. I am looking at comparison and user opinion of existing AV products. I know I can avoid most (if not all) threats by being careful on the ...
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3answers
4k views

How do I uninstall Bitdefender Endpoint Security for Mac?

This application is not listed in my apps, nor does it ship with an uninstaller I can locate. The support site says to contact their support team, but the product is not listed in the drop down for ...
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0answers
64 views

How do I turn off Avast AV entirely, without uninstalling it?

Just tried Firefox Dev and everything returns invalid certificate issues. One possible cited cause are AV software, so I'd like to suspend Avast and see if it clears up. Suspend/stop - not "turn off ...
4
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1answer
3k views

Run untrusted application safely through sandbox-exec command

I'm trying to run a potentially untrusted application without the following permissions, through the sandbox-exec command: file write (to avoid corruption/injection of files) network (to avoid ...
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3answers
15k views

Manually cleaning up a threat detected by Sophos Anti-virus?

I was viewing another answer on this website and one of the links lead me to a malicious website. I have Sophos Antivirus installed, and a warning immediately popped up telling me that a threat was ...
3
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5answers
737 views

Can malware move from Windows to Mac

I recently got a Mac, and am transferring files from my old Windows laptop which had kept freezing with very high hard-drive activity, and may or may not be infected with malware. I'm wondering if ...
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1answer
568 views

Why does McAfee Endpoint Protection keep auto installing?

I want to know how I can permanent uninstall McAfee Endpoint Protection. I've used the uninstall command found here, and it works. It uninstalls the software. But after some time it will auto install ...
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3answers
6k views

How reliable and trustworthy are the Objective-See Security tools (KnockKnock (UI), Dynamic Hijack Scanner and BlockBlock)?

DHS found an issue Is this a false positive? Anybody else with the same message? I installed BlockBlock. What do you think about it? Do you trust those Security tools? BlockBlock (beta) ...
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1answer
4k views

Pop-up “Firmware changes detected” randomly appear

This message just popped up on my Mac What could have caused this? I see the file eficheck.bin, how can I tell if my EFI firmware is OK? After sending this to Apple, what happens next?
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1answer
152 views

Symantec alerted an attack: OSX Apple File Print Remote BO from TimeMachine

Symantec Endpoint Protection reported that there are attacks from my TimeMachine with Attack Name: OS X Apple File Print Remote BO The attack happens at least twice a week. From Symantec ...
3
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1answer
740 views

Is anti virus a battery hog?

My university makes you download an anti-virus and something called safeconnect in order to connect to the internet (eduroam). I'm very careful and wouldn't have either on my computer if it was up to ...
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1answer
2k views

Precautions to prevent iPhone virus from attachment

In a momentary lapse of sanity, I opened up an attachment (a .pdf) from an unknown email address (the domain doesn't seem to be a website) in the gmail app on my iPhone 5. Realizing that there was a ...
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1answer
74 views

Is there free real time app to protect my Mac that are not dangerous for Mac or its user?

Do following real time protection apps for Mac harm Mac technologically or spy after the user? AVAST, Avira, Sophos, AVG
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545 views

Get a list of ALL services running and not and whether or not they should be running

The basic problem I am trying to solve is that a Norton Anti-Virus process got stuck soaking up one full processor, and I had to kill it. (there was also a message on the norton app that said ...
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3answers
464 views

My Chrome on Mac (with Mac OS Sierra) always starts with feed.snowbitt.com when I run it

I always get redirected to site feed.snowbitt.com when I run my Chrome. I tried to: -Delete Chrome from computer, and reinstall it. Didn' work. -Clear all my content, browsing history from Chrome. ...
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11answers
4k views

Is it generally advisable to get anti-virus software for Mac OS X?

Is it worth to buy an anti-virus software for Mac OS X? I heard both opinions like "it's not possible to get a virus on Mac OS X" and "Mac OS X is also vulnerable against virus... " Which is true? ...
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1answer
2k views

Cisco AnyConnect denies connection after failing to recognize antivirus

First I'd like to say... I don't typically install antivirus on my computers but I had to make an exception for a client. I've talked to their help desk about this issue and aside from providing a ...
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1answer
197 views

How do I measure the performance impact of antivirus applications?

I'm evaluating Antivirus software suites for my Mac, and would like to measure the performance impact they have on my computer. I am not looking to do a expert-level thorough examination, but rather ...
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5answers
4k views

Can someone help me evaluate if this is a scam for Mac support?

My father-in-law purchased a $400 lifetime support contract with a company (Cyber PC Experts). Recently his computer has been acting up—running very slowly—so he requested support. The service tech ...
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3answers
1k views

Restore MacBook after Avast! install (stuck at apple logo)

Somebody installed Avast! on this MacBook running OSX 10.8 (that's what uname said) and now it won't boot, it gets stuck at the apple logo and nothing more, I was able to boot into single-user mode ...
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1answer
380 views

Antivirus in Macbook [duplicate]

Do we need to install antivirus in OS X? I'm using macbook Pro 13" currently. Which antivirus is recommended (and free)? Any other better way to protect information in OS X?
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1answer
236 views

Only HTTPS websites working otherwise I receive ERR_CONNECTION_REFUSED [duplicate]

I am facing annoying problem of only HTTPS websites working on my Mac (in all browsers). I can only visit Google, YouTube, Facebook, Yahoo etc. So far, I tried following: Websites shows error of: ...
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0answers
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Why does kernel_task cpu% grow unbounded until forced reboot? [duplicate]

I saw an issue with my MacBook Pro running El Capitan with Chrome running that the kernel_task went haywire and started sucking up all the available CPU and the % cpu just kept climbing to where it ...
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1answer
234 views

Cannot access any websites { other than google, yahoo, gmail, youtube and facebook (http type) } on macbook air

A week ago I had installed avast antivirus plus avast vpn for about an hour. That exact moment I encountered this trouble for the first time. Then I uninstalled avast by clicking on the uninstall ...
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2answers
5k views

Antivirus for OS X 10.6.8

I have a laptop with OS X 10.6.8, and it needs anti-virus. I went to the App Store, but everything wants 10.7 and later. I need a software recommendation.
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1answer
171 views

Why am I getting virus alert after clean formatting MacBook Pro 2014?

I recently clean formatted, erased everything on the hard drive of, my MacBook Pro 2014 and installed OS X El Capitan. I also installed Sophos Aniti-Virus, but Sophos is detecting Android Apperhand ...
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2answers
6k views

Do i need installing antivirus on Windows partition of Mac

I have installed Windows 10 on MacBook Pro with Boot Camp. Now I would like to know if I should also install antivirus on Windows 10, or is all virus protection handled by the Mac?
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1answer
445 views

Mac OS and iOS Free Anti-virus etc [duplicate]

Is there any anti-virus that is free for Mac OSX that is like AVG or Avast for PCs? Is there a malwarebytes version for Mac OSX? Is there mobile anti-virus available for iOS like Avast etc. I am ...
2
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1answer
151 views

Concerned I may have accidentally dropped malware (or something) onto my system

First time poster in this part of Stack Exchange - apologies I have posted in the wrong section. In short I have an iMac running 10.8. Most of the time I quite happily get about my business but about ...
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0answers
380 views

kernel: decmpfs repeated error messages origin?

I am in the process of evaluating different anti-virus on Mac OS X (Mountain Lion, Mavericks, Yosemite…). Upon running a full scan to test Sophos on a Mountain Lion Mac I witnessed a total slow down ...
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1answer
60k views

I have opened a program from a website, has my MBP been infected with a virus?

I have opened a file on https://kickass.so/revenge-s04e14-hdtv-x264-lol-ettv-t10127520.html. I was supposed to click on a torrent file but I clicked on the big DOWNLOAD link. And I had no idea that ...
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3answers
2k views

Does Avast noticeably affect battery life?

I am thinking about installing the free Avast anti-virus software on my MacBook Air (2012). Once Avast has completed its first scan of all of the files, does its continued operation noticeably affect ...
2
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1answer
155 views

Early 90s Mac freeware anti-virus program

I'm trying to find information about a popular early 90s Macintosh freeware anti-virus program. I can't remember its name. As I recall it installed as an extension and the icon was a frilly black 'V' ...
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1answer
76 views

Has it been ever possible to implant a monitoring device or software in a Macbook that cannot be detected by antivirus?

I have a several-year old pre-unibody Macbook and am wondering if my family member could have ever put some kinda tracking or monitoring device or software in it either directly or by remote access? I ...
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1answer
3k views

Confusion in understanding data fork, resource fork and the MachO file format when viewed all together

Note: I am a newbie to the OS X world. So please take it easy if I ask something noobish. According to what I have read/understood: MachO's file layout consists of a header, load commands and data ...
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1answer
472 views

Mail attachment quarantined on iphone

I am having trouble with an email attachment that I received. I use an icloud email account and am accessing it from the Mail app on my iPhone. The attachment is a PDF file but when I try to open it, ...
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1answer
2k views

AntiVirus for Mac running parallels

I'm using OS X 10.10.1 on my Mac. I use Parallels Desktop 10 and VMware Fusion 7.1. I do use windows a lot on Parallels and Fusion (Several Virtual machines). Windows 8.1,7 and XP. I've installed ...
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2answers
2k views

What does XProtect protect/secure on Mac OS X?

My research so far has found XProtect appears at first glance to be a basic AV engine that scans DMG & apps through Safari, Chrome and Firefox. I'm looking to understand what does it actually do ...
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0answers
91 views

BitDefender opens randomly

BitDefender's Dock icon pops up randomly and I have to quit again and again. I tried to contact the support but got only some generic response. Does anyone have the same problem and have a workaround? ...
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0answers
703 views

Outlook force closes because Avast finds malware

Almost as soon as I open Outlook 2011, Avast pops up with it's shield warning: That's MSIL:GenMalicious-ALS [Trj]. Outlook has then "encountered an error and needs to close"; too quickly for me to ...