A
"MacKeeper" is a scam with only one useful feature: it deletes itself.
If you have incompletely removed MacKeeper—for example, by dragging the application to the Trash and immediately emptying—then you'll have to reinstall it and start over.
Note: These instructions apply to the version of the product that I tested in early 2012. I haven't tested other versions, but so far I've had no reports of failure, and the issue comes up often.
IMPORTANT: "MacKeeper" has what the developer calls an “encryption” feature. In my tests, I didn't try to verify what this feature really does. If you used it to “encrypt” any of your files, “decrypt” them before you uninstall, or (preferably) restore the files from backups made before they were “encrypted.” As the developer is not trustworthy, you should assume that the "decrypted" files are corrupt unless proven otherwise.
Please back up all data before making any changes.
In the Finder, select
Go ▹ Applications
from the menu bar, or press the key combination shift-command-A. The "MacKeeper" application is in the folder that opens. Quit it if it's running, then drag it to the Trash. You'll be prompted for your login password. Click the Uninstall MacKeeper button in the dialog that appears. All the other functional components of the software will be deleted. Restart the computer and empty the Trash.
☞ Quit MacKeeper before dragging it to the Trash.
☞ Let MacKeeper delete its other components before you empty the Trash.
☞ Don't try to drag MacKeeper from the Dock or the Launchpad to the Trash.
☞ Don't try to remove MacKeeper while running in safe mode.
B
Below is a suggested procedure to inactivate the malware you installed.
Please back up all data before making any changes.
The numbers refer to the items in the screenshots, in the order shown. Use the screenshots as a guide. #1 would be the topmost item, #2 the one below, and so on.
The names in quotes refer to malware types, not to the names of the files. Don't expect the files to have similar names. For example, if you installed the "VSearch" malware, usually none of the files will have the word "VSearch" in the name. Malware attackers don't make it that easy for you.
You may be prompted for your administrator name and/or password when you delete some of the files listed below, or you may be prompted to confirm because a file is locked.
In the folder arranged as shown in the first screenshot, delete these items:
#4 through #6 ("ZipCloud")
#8 ("Spigot")
#9 through #15 ("InstallMac")
Restart the computer. Until you've done that, the malware will still be active, even after you delete the files.
Uninstall any Safari extensions you don't know you need. If in doubt, remove all of them. None is needed for normal operation.
Do the equivalent in the Chrome and Firefox browsers, if you use either of those.
Reset the Safari home page and search engine, if either was changed. You may need to do the same in the other browsers.
From the Applications folder (not shown in the screenshots), delete items with any of the following names:
InstallMac
JustCloud
ZipDevil
These steps will permanently inactivate the malware, as long as you never reinstall it. A few small files may remain in hidden folders, but they have no effect.
The instructions above apply only to you. I'm including more general—and complete—self-contained removal instructions below for the benefit of others who may find this discussion. You can skip the remaining steps, but you should read them.
C (optional)
You installed the "Spigot" ad-injection malware. Please take the steps below to disable it.
Malware is always changing to get around the defenses against it. This procedure works as of now, as far as I know. It may not work in the future. Anyone finding this comment a few days or more after it was posted should look for a more recent discussion, or start a new one.
Back up all data before continuing.
1. 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/LaunchAgents
In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return. A folder named "LaunchAgents" will open.
2. Inside the folder you just opened, there may be one or more files with a name beginning as follows:
com.spigot
Move all such items to the Trash.
Log out or restart the computer. Empty the Trash.
3. From the Safari menu bar, select
Safari ▹ Preferences... ▹ Extensions
Uninstall all extensions you don't know you need, including any with the word "Spigot" in the description. If in doubt, remove all of them. None is required for normal operation. Do the equivalent in the Chrome and Firefox browsers, if you use either of those.
The trojan will now be inactive.
4. This step is optional. Do as in Step 1 with this line:
~/Library/Application Support
and delete an item named
Spigot
If it's present.
Make sure you don't repeat the mistake that led you to install the malware. Chances are you got it from an Internet cesspit such as "MacUpdate," "Softonic," "CNET Download," or "SourceForge." Never visit any of those sites again. You might also have downloaded it from an ad in a page on some other site. The ad would probably have included a large green button labeled "Download" or "Download Now" in white letters. The button is designed to confuse people who intend to download something else on the same page. If you ever download a file that isn't obviously what you expected, delete it immediately.
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.
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.
D (optional)
You may have installed one or more variants of the "InstallMac" trojan. Please take the steps below to disable it.
The criminal behind this attack tries to make the malware hard to remove by varying the names of the files it installs. This procedure works as of now, as far as I know. It may not work in the future. Anyone finding this comment a few days or more after it was posted should look for a more recent discussion, or start a new one.
Back up all data before continuing.
1. 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/LaunchAgents
In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return. A folder named "LaunchAgents" will open.
Press the key combination command-2 to select list view, if it's not already selected.
There should be a column in the Finder window headed Date Modified. Click that heading to sort the contents by date. This will make related files easy to identify regardless of their names, because they will have the same modification date.
2. Inside the folder you just opened, there may be files with a name of any of these forms:
something.AppRemoval.plist
something.download.plist
something.ltvbit.plist
something.notification.plist
something.update.plist
Here something is usually a meaningless string, such as any of the following:
Epolife
InstallMac
Javeview
Kuklorest
Manroling
Otwexplain
These are examples, not a complete list. The string could be anything, and there could be more than value of something. Look for a cluster of files with the same modification date that fit the description.
Lately, the "InstallMac" attacker has been scrambling the strings "AppRemoval," "download," "ltvbit," and "update" in the names of his files. For example, you might see file names such as these, instead of the above:
something.AppVemoral.plist
something.dolnwoad.plist
something.btvlit.plist
something.uadpte.plist
You could have more than one copy of the malware, with different values of something.
Move all such items to the Trash. If there are any other files with a name that begins with something, move those to the Trash also. You may get a warning that some of the files are locked; delete them anyway.
After you've done that, there may not be anything left in the LaunchAgents folder; in that case, you can delete the folder, but otherwise don't delete it. Other files in the folder are not necessarily malicious (though they could be, if you also installed some other kind of malware.)
Log out or restart the computer. The trojan should now be inactive.
3. This step is optional. Open the following folder as in Step 1:
~/Library/Application Support
and move to the Trash any subfolders with the name something that you found in Step 2.
Don't move the Application Support folder or anything else inside it.
4. Open the Applications folder. If there is an item named something, or "Zip Devil," or with any of the other names listed in Step 2, drag it to the Trash.
If in doubt, press the key combination option-command-4 to arrange the apps by date added. Look at the apps that have been added since you first noticed the problem. If there is one you don't recognize, drag it to the Trash.
You may get an alert that the item is locked. Confirm that you want to move it to the Trash.
Empty the Trash.
If you get an alert that the application is in use, force it to quit.
E (optional)
"ZipCloud," sometimes named "JustCloud," is purportedly a cloud-storage client that either is, or is closely associated with, malware.
To remove ZipCloud, please start by backing up all data (not with ZipCloud itself, of course.)
This procedure works as of now, as far as I know. It may not work in the future. Anyone finding this comment a few days or more after it was posted should look for a more recent discussion, or start a new one.
Quit the "ZipCloud" or "JustCloud" application, if it's running, and drag it from the Applications folder to the Trash. Don't try to empty yet.
Triple-click anywhere in the line below on this page to select it:
~/Library/LaunchAgents
Right-click or control-click the highlighted line and select
Services ▹ Open
from the contextual menu.* A folder named "LaunchAgents" should open.
In the folder, there may be one or more files with a name beginning as follows:
com.jdibackup.
Move all such files to the Trash.
Log out or restart the computer and empty the Trash.
*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 may not see what you pasted because a line break is included. Press return.