nana2015

Q: How do I remove malware from imac?

Hi,

I'm having all sorts of problems on my imac due to malware. My computer is slow and when I use Safari or Firefox (haven't tried others), all kinds of pop-ups and warnings come up.

 

What is the best genuine software to remove malware and protect my imac from future viruses?

 

Thank you.

Mariana

OS X Yosemite (10.10.1)

Posted on Jan 5, 2015 10:44 AM

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Q: How do I remove malware from imac?

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  • by Niel,

    Niel Niel Jan 5, 2015 10:45 AM in response to nana2015
    Level 10 (313,723 points)
    Mac OS X
    Jan 5, 2015 10:45 AM in response to nana2015

    To remove it, click here and follow the instructions, or if they don't cover the type of adware on the computer, these ones. If you're willing to use a tool to remove it(you don't need to, but may find it easier), you can instead run Adware Medic; this link is a direct download.


    To avoid it in future, don't download software from sources other than the developers' websites or the Mac App Store.


    (119541)

  • by Old Toad,

    Old Toad Old Toad Jan 5, 2015 10:49 AM in response to nana2015
    Level 10 (141,390 points)
    Mac OS X
    Jan 5, 2015 10:49 AM in response to nana2015

    First download and run Etrecheck.  Copy and paste the results into your reply. It's a diagnostic tool that was developed by one of the most respected users here in the ASC to help identify the more obvious culprits.

     

    Next go to TheSafeMac.com and read up on malware and adware.  There's a free app available there for removing adware.  The Etrecheck report can tell us if there's other software, like MacKeeper, CleanMyMac, etc. installed that can cause poor performance. Once identified the developer's uninstall directions can easily be found via a Google search.

    OTsig.png

  • by Linc Davis,

    Linc Davis Linc Davis Jan 5, 2015 11:39 AM in response to nana2015
    Level 10 (208,000 points)
    Applications
    Jan 5, 2015 11:39 AM in response to nana2015

    There is no need to download anything to solve this problem.

    Triple-click the line below on this page to select it, then copy the text to the Clipboard by pressing the key combination  command-C:

    /Library/LaunchDaemons

    In the Finder, select

              Go Go to Folder...

    from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.

    A folder named "LaunchDaemons" may open. Look inside it for a file with a name of the form

              com.something.daemon.plist

    Here something is a variable word, which can be different in each case. It could be "cloud," "dot," "highway," "submarine," "trusteddownloads," or pretty much anything else.

    There may also be a file named

               com.something.helper.plist

    in the same folder.

    If you find files with names that fit the above description, post what you have for "something."

  • by nana2015,

    nana2015 nana2015 Jan 5, 2015 9:00 PM in response to Linc Davis
    Level 1 (0 points)
    Jan 5, 2015 9:00 PM in response to Linc Davis

    Thanks so much.

     

    I have in fact found several files ending in plist, two of which are com.something.daemon.plist files as follows:

     

    1. com.google.keystone.daemon.plist

    2. com.mouse.daemon.plist

     

    If these are the culprits, how do I get rid of them?

     

    Thank you for your prompt reply.

  • by nana2015,

    nana2015 nana2015 Jan 5, 2015 9:01 PM in response to nana2015
    Level 1 (0 points)
    Jan 5, 2015 9:01 PM in response to nana2015

    Sorry. And there is this one too:

     

    com.mouse.helper.plist

  • by nana2015,

    nana2015 nana2015 Jan 5, 2015 9:06 PM in response to Linc Davis
    Level 1 (0 points)
    Jan 5, 2015 9:06 PM in response to Linc Davis

    and a com.oracle.java.Helper-Tool.plist...

  • by Linc Davis,Solvedanswer

    Linc Davis Linc Davis Jan 5, 2015 9:22 PM in response to nana2015
    Level 10 (208,000 points)
    Applications
    Jan 5, 2015 9:22 PM in response to nana2015

    You installed a variant of the "VSearch" trojan. Remove it as follows.

    This malware has many variants. Anyone else finding this comment should not expect it to be applicable.

    Back up all data before proceeding.

    Triple-click anywhere in the line below on this page to select it:

    /Library/LaunchAgents/com.mouse.agent.plist

    Right-click or control-click the line and select

              Services Reveal in Finder (or just Reveal)

    from the contextual menu.* A folder should open with an item selected. Drag the selected item to the Trash. You may be prompted for your administrator login password.

    Repeat with each of these lines:

    /Library/LaunchDaemons/com.mouse.daemon.plist
    /Library/LaunchDaemons/com.mouse.helper.plist

    Restart the computer and empty the Trash. Then delete the following items in the same way:

    /Library/Application Support/mouse
    /System/Library/Frameworks/v.framework

    The problem may have started when you downloaded and ran an application called "MPlayerX." That's the name of a legitimate free movie player, but the name is also used fraudulently to distribute VSearch. If there is an item with that name in the Applications folder, delete it, and if you wish, replace it with the genuine article from mplayerx.org.

    This trojan is often found on illegal websites that traffic in pirated content such as movies. If you, or anyone else who uses the computer, visit such sites and follow prompts to install software, you can expect more of the same, and worse, to follow. Never install any software that you downloaded from a bittorrent, or that was downloaded by someone else from an unknown source.

    In the Security & Privacy pane of System Preferences, select the General tab. The radio button marked Anywhere  should not be selected. If it is, click the lock icon to unlock the settings, then select one of the other buttons. After that, don't ignore a warning that you are about to run or install an application from an unknown developer.

    Then, still in System Preferences, open the App Store or Software Update pane and check the box marked

              Install system data files and security updates (OS X 10.10 or later)

    or

              Download updates automatically (OS X 10.9 or earlier)

    if it's not already checked.

    *If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination  command-C. In the Finder, select

              Go Go to Folder...

    from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.

  • by nana2015,

    nana2015 nana2015 Jan 6, 2015 9:35 AM in response to Linc Davis
    Level 1 (0 points)
    Jan 6, 2015 9:35 AM in response to Linc Davis

    Thank you very much! This seems to have solved the main problem. I followed your detailed instructions to the T. The Security and Privacy settings on my computer were already set as you described. I think it was the MPlayerX. I tried downloading it so that my child could play a new game. Never again...

     

    Now I just have Word and Excel opening up as soon as I turn on my computer and access my desktop...without opening the programs myself.

     

    Is there a software program you would recommend would regularly check for Trojans and in general, malware and viruses?

     

    Thanks!

  • by nana2015,

    nana2015 nana2015 Jan 6, 2015 9:36 AM in response to Niel
    Level 1 (0 points)
    Jan 6, 2015 9:36 AM in response to Niel

    Thank you for your suggestions!

  • by Linc Davis,

    Linc Davis Linc Davis Jan 6, 2015 9:52 AM in response to nana2015
    Level 10 (208,000 points)
    Applications
    Jan 6, 2015 9:52 AM in response to nana2015
    I just have Word and Excel opening up as soon as I turn on my computer and access my desktop...without opening the programs myself.

    It's likely that one or more of your login items is causing the problem. Select the Login Items tab in the Users & Groups pane of System Preferences. Delete any items that you don't want or don't recognize. If you're not sure which ones to delete, double-click each to test it.

    Is there a software program you would recommend would regularly check for Trojans and in general, malware and viruses?

    Mac users often ask whether they should install "anti-virus" software. The answer usually given on ASC is "no." The answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There is a threat, and you need to educate yourself about it.

    1. This is a comment on what you should—and should not—do to protect yourself from malicious software ("malware") that circulates on the Internet and gets onto a computer as an unintended consequence of the user's actions. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the computer, or who has been able to take control of it remotely. That threat is in a different category, and there's no easy way to defend against it.

    The comment is long because the issue is complex. The key points are in sections 5, 6, and 10.

    OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.

    2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it "XProtect."

    The malware recognition database used by XProtect is automatically updated; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.

    The following caveats apply to XProtect:

    ☞ It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.

    ☞ It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.

    As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.

    3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't necessarily been tested by Apple, but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. That may not mean much if the developer lives in a country with a weak legal system (see below.)

    Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:

    ☞ It can easily be disabled or overridden by the user.

    ☞ A malware attacker could get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.

    ☞ An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.

    Apple has taken far too long to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. Those lapses don't involve App Store products, however.

    For the reasons given, App Store products, and—to a lesser extent—other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandbox security is based on user input. Never click through any request for authorization without thinking.

    4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.

    5. The built-in security features of OS X reduce the risk of malware attack, but they are not, and never will be, complete protection. Malware is a problem of human behavior, not machine behavior, and no technological fix alone is going to solve it. Trusting software to protect you will only make you more vulnerable.

    The best defense is always going to be your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "Trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and Internet criminals. If you're better informed than they think you are, you'll win. That means, in practice, that you always stay within a safe harbor of computing practices. How do you know when you're leaving the safe harbor? Below are some warning signs of danger.

    Software from an untrustworthy source

    ☞ Software with a corporate brand, such as Adobe Flash Player, doesn't come directly from the developer’s website. Do not trust an alert from any website to update Flash, or your browser, or any other software. A genuine alert that Flash is outdated and blocked is shown on this support page. Follow the instructions on the support page in that case. Otherwise, assume that the alert is fake and someone is trying to scam you into installing malware. If you see such alerts on more than one website, ask for instructions.

    ☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.

    ☞ Rogue websites such as Softonic, Soft32, and CNET Download distribute free applications that have been packaged in a superfluous "installer."

    ☞ The software is advertised by means of spam or intrusive web ads. Any ad, on any site, that includes a direct link to a download should be ignored.

    Software that is plainly illegal or does something illegal

    ☞ High-priced commercial software such as Photoshop is "cracked" or "free."

    ☞ An application helps you to infringe copyright, for instance by circumventing the copy protection on commercial software, or saving streamed media for reuse without permission. All "YouTube downloaders" are in this category, though not all are necessarily malicious.

    Conditional or unsolicited offers from strangers

    ☞ A telephone caller or a web page tells you that you have a “virus” and offers to help you remove it. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)

    ☞ A web site offers free content such as video or music, but to use it you must install a “codec,” “plug-in,” "player," "downloader," "extractor," or “certificate” that comes from that same site, or an unknown one.

    ☞ You win a prize in a contest you never entered.

    ☞ Someone on a message board such as this one is eager to help you, but only if you download an application of his choosing.

    ☞ A "FREE WI-FI !!!" network advertises itself in a public place such as an airport, but is not provided by the management.

    ☞ Anything online that you would expect to pay for is "free."

    Unexpected events

    ☞ A file is downloaded automatically when you visit a web page, with no other action on your part. Delete any such file without opening it.

    ☞ You open what you think is a document and get an alert that it's "an application downloaded from the Internet." Click Cancel and delete the file. Even if you don't get the alert, you should still delete any file that isn't what you expected it to be.

    ☞ An application does something you don't expect, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.

    ☞ Software is attached to email that you didn't request, even if it comes (or seems to come) from someone you trust.

    I don't say that leaving the safe harbor just once will necessarily result in disaster, but making a habit of it will weaken your defenses against malware attack. Any of the above scenarios should, at the very least, make you uncomfortable.

    6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.

    Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.

    Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable itnot JavaScript—in your browsers.

    Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a padlock icon in the address bar when visiting a secure site.

    Stay within the safe harbor, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.

    7. Never install any commercial "anti-virus" (AV) or "Internet security" products for the Mac, as they are all worse than useless. If you need to be able to detect Windows malware in your files, use one of the free security apps in the Mac App Store—nothing else.

    Why shouldn't you use commercial AV products?

    ☞ To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. This technique is a proven failure, as a major AV software vendor has admitted. Most attacks are "zero-day"—that is, previously unknown. Recognition-based AV does not defend against such attacks, and the enterprise IT industry is coming to the realization that traditional AV software is worthless.

    ☞ Its design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere. In order to meet that nonexistent threat, commercial AV software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.

    ☞ By modifying the operating system, the software may also create weaknesses that could be exploited by malware attackers.

    ☞ Most importantly, a false sense of security is dangerous.

    8. An AV product from the App Store, such as "ClamXav," has the same drawback as the commercial suites of being always out of date, but it does not inject low-level code into the operating system. That doesn't mean it's entirely harmless. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.

    An AV app is not needed, and cannot be relied upon, for protection against OS X malware. It's useful, if at all, only for detecting Windows malware, and even for that use it's not really effective, because new Windows malware is emerging much faster than OS X malware.

    Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else. A malicious attachment in email is usually easy to recognize by the name alone. An actual example:

    London Terror Moovie.avi [124 spaces] Checked By Norton Antivirus.exe

    You don't need software to tell you that's a Windows trojan. Software may be able to tell you which trojan it is, but who cares? In practice, there's no reason to use recognition software unless an organizational policy requires it. Windows malware is so widespread that you should assume it's in every email attachment until proven otherwise. Nevertheless, ClamXav or a similar product from the App Store may serve a purpose if it satisfies an ill-informed network administrator who says you must run some kind of AV application. It's free and it won't handicap the system.

    The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have all the disadvantages mentioned in section 7.

    9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.

    10. As a Mac user, you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither can you assume that you will always be safe from exploitation, no matter what you do. Navigating the Internet is like walking the streets of a big city. It can be as safe or as dangerous as you choose to make it. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices.

  • by mama99,

    mama99 mama99 Jan 7, 2015 11:40 PM in response to Linc Davis
    Level 1 (0 points)
    Jan 7, 2015 11:40 PM in response to Linc Davis

    Linc Davis wrote:

     

    There is no need to download anything to solve this problem.

    Triple-click the line below on this page to select it, then copy the text to the Clipboard by pressing the key combination  command-C:

    /Library/LaunchDaemons

    In the Finder, select

              Go Go to Folder...

    from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.

    A folder named "LaunchDaemons" may open. Look inside it for a file with a name of the form

              com.something.daemon.plist

    Here something is a variable word, which can be different in each case. It could be "cloud," "dot," "highway," "submarine," "trusteddownloads," or pretty much anything else.

    There may also be a file named

               com.something.helper.plist

    in the same folder.

    If you find files with names that fit the above description, post what you have for "something."

     

    Hello Linc Davis,

    PLEASE I need your help!

    I'm having an horrible experience with my Safari ( iMac OS X 10.9.5)

    This all started SUDDENLY, today. Although i downloaded a couple of aps last week  thinking i was upgrading my video ap who wasn't working (I was prompted to do so but the video never ended up working!)

     

    My symptoms:

    - Ads are "glueing" themselves on my webpages... in different formats depending on the website i'm on (regular websites...)

    - pages are opening ups by themselves (see picture) (directing to "d2bzz.resolve.sweepstakesghost.biz/?sov....." with a window saying "PC Tech Support Chat initiated. Specialist: Matt Folson Date: January 7, 2015")

    To this i turned my Wifi off and then closed the page. This happened 2 or 3 times and not anymore. Not sure how though!

    - SELECTED WORDS become all caps, underlined, and in light blue with a link to an ad? (see picture, all over and at bottom)

    - ALL of this are displaying a certain "Ad by PJS-4.2"

     

    M Solutions:

    I searched online and downloaded

    -Clamsav: found items to remove and removed them and emptied my trash ---> Dindt work (see picture)

    - Adware Medic: found a couple of other items to delete and deleted them , emptied trash and restated computer ----> didn't work!

     

    Still same Symptoms!

     

    I also looked for your files you're referring to at the very beginning but can't find any of them in my computer.

     

    I did the other search you're referring to and found this:

    com.smithmicro.schedulerdaemon.plist

    com.microsoft.office.licensing.helper.plist

    com.surteesstudios.hddfancontroldaemon.plist

    com.adobe.fpsaud.plist

    com.macpaw.CleanMyMac2.Agent.plist

    com.apple.aelwriter.plist

    com.adobe.SwitchBoard.plist

    com.apple.qmaster.qmasterd.plist

    com.adobe.versioncueCS3.plist

    com.bombich.ccc.plist

     

    PLEASE PLEASE HELP what can I do to get rid of those?!!

  • by SpikeLives,

    SpikeLives SpikeLives Jan 13, 2015 3:26 PM in response to Linc Davis
    Level 1 (0 points)
    Jan 13, 2015 3:26 PM in response to Linc Davis

    Here is what I found.

    com.adobe.ARM.SMJobBlessHelper.plist

    com.adobe.fpsaud.plist

    com.microsoft.office.licensing.helper.plist

    com.perion.searchprotectd.plist

    com.sonos.smbbump.plist

     

    Any help would be appreciated.

  • by nana2015,

    nana2015 nana2015 Jan 13, 2015 4:59 PM in response to Linc Davis
    Level 1 (0 points)
    Jan 13, 2015 4:59 PM in response to Linc Davis

    Thank you! This is very informative and I hope others find it informative as well.

  • by SumathiB,

    SumathiB SumathiB Mar 1, 2015 6:15 AM in response to Linc Davis
    Level 1 (0 points)
    Mar 1, 2015 6:15 AM in response to Linc Davis

    Hello Linc,

     

    I'm installed what seems to be MalPlayerX on my Mac this morning while trying to use MapMyRun, and it showed up as an Adobe update.

     

    So I seem to be infected with this virus, which is so very annoying, and I ran the script that you suggested above, and I have found the following:

     

    com.3a721864f9a50fc7.daemon.plist

    com.3a721864f9a50fc7.helper.plist

    com.adobe.fpsaud.plist

    com.google.keystone.daemon.plist

    com.microsoft.office.licensing.helper.plist

     

    Only the first two seem to have been installed today.  Any support you can provide in heeling me to remove/uninstall this would be so very appreciated.

     

    Thank you so much in advance!

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