Malware/Strange in library folders

This isn't for me, but a friend, I'm helping to clean his Macbook Pro to malware.

I read the previous discussions that detail step by step how to remove Vsearch and other files of the LaunchAgents and the LaunchDaemons folders in the library, but it is still getting pop up of ads (she runs ad-block on Chrome) for Offers4u, and it becomes embedded links of high Deal.

Looking around his laptop, I found a selection of very strange folders in its library. I have highlighted them in a screenshot below.

All the records highlighted are unknown for her, none of them have a capitalized first letter and seem to be completely random words that are not applications or extensions. Any advice as to what they are? And if they are harmful, the best way to remove them (moving them to the trash just solve it?)

Thank you

OT

You have installed one or more variants of the Trojan "VSearch. Please inactivate them as follows. This procedure leaves a few small files behind, but they have no effect, and trying to delete all them would be much more trouble that it's worth.

This malware has many variations. Anyone else find that this comment should not expect that it is applicable.

Back up all data before proceeding.

Step 1

VSearch variant you regenerates itself if you try to remove it when it is run. To remove it, you must first start in safe mode temporarily disable the malware.

Note: If FileVault is enabled in OS X 10.9 or an earlier version, or if a firmware password is defined, or if the boot volume is a software RAID, you can not do this. Ask for other instructions.

Step 2

When running in safe mode, load the web page and then triple - click anywhere in the line below to select:

/Library/LaunchDaemons

In the Finder, select

Go ▹ go to the folder...

from the menu bar and paste it into the box that opens by pressing command + V. You won't see what you pasted a newline being included. Press return.

A folder named "LaunchDaemons" will open. Press command-2 key combination to select the display of the list, if it is not already selected.

There should be a column in the update Finder window. Click this title two times to sort the content by date with the most recent at the top. Please don't skip this step. Files that belong to an instance of VSearch will have the same date of change for a few minutes, then they will be grouped together when you sort the folder this way, which makes them easy to identify.

Step 3

In the LaunchDaemons folder, there may be one or more files with the name of this form:

com Apple.something.plist

When something is a random string, without the letters, different in each case.

Note that the name consists of four words separated by dots. Typical examples are:

com Apple.builins.plist

com Apple.cereng.plist

com Apple.nysgar.plist

There may be one or more items with a name of the form:

com.something.plist

Yet once something is a random string, without meaning - not necessarily the same as that which appears in one of the other file names.

These names consist of three words separated by dots. Typical examples are:

com.semifasciaUpd.plist

com.ubuiling.plist

Drag all items in the basket. You may be prompted for administrator login password.

Restart the computer and empty the trash.

If you are not sure whether a file is part of the malware, order the contents of the folder by date modified, not name. Malicious files will be grouped together. There could be more than one such group. A file dated far in the past is not part of the malware. A folder in date dated Middle an obviously malicious cluster is almost certainly too malicious.

If the files come back after you remove the, they are replaced by others with similar names, then either you didn't start in safe mode or you do not have all the. Return to step 1 and try again.

Step 4

Reset the home page in each of your browsers, if it has been modified. In Safari, first load the desired home page, then select

▹ Safari preferences... ▹ General

and click on

Set on the current Page

If you use Firefox or Chrome web browser, remove the extensions or add-ons that you don't know that you need. When in doubt, remove all of them.

Step 5

The malware lets the web proxy discovery in the network settings. If you know that the setting was already enabled for a reason, skip this step. Otherwise, you should undo the change.

Open the network pane in system preferences. If there is a padlock icon in the lower left corner of the window, click it and authenticate to unlock the settings. Click the Advanced button, and then select Proxies in the sheet that drops down. Uncheck that Auto Discovery Proxy if it is checked. Click OK, then apply, then close the window.

Step 6

This step is optional. Open the users and groups in the system preferences and click on the lock icon to unlock the settings. In the list of users, there may be one or more with random names that have been added by the malware. You can remove these users. If you are not sure whether a user is legitimate, do not delete it.

Tags: Notebooks

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