How to remove TechLetterSearch adware from the operating system

Also Known As: Ads by TechLetterSearch
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove TechLetterSearch from Mac computers

What is TechLetterSearch?

Sharing many similarities with GlobalAdviseSearch and ExploreSearchResults, TechLetterSearch is an adware-type application. This app is part of the AdLoad adware family and infiltrates systems under the guise of a Flash Player updater. TechLetterSearch operates by running intrusive advertisement campaigns, however, it may also have browser hijacker traits such as promotion of fake search engines. Most adware types possess data tracking abilities. Due to its deceptive proliferation methods (i.e., via fake Flash updates), TechLetterSearch is classified as a Potentially Unwanted Application (PUA). Note that rogue software updaters are used to spread not only unwanted content but also malicious software (e.g. ransomware, trojans, etc.).

TechLetterSearch adware

Adware delivers many unwanted and harmful ads, for example pop-ups, coupons, banners, surveys and so on. These intrusive ads diminish the browsing experience, as they limit browsing speed and website visibility (by overlaying page content). This makes them a significant nuisance, yet they are also a threat to device/user safety. Once an intrusive advertisements is clicked, it can redirect to sale-oriented, untrusted/rogue, compromised, deceptive/scam and even malicious sites. Some can even execute scripts to download/install content without users' consent (e.g. PUAs). TechLetterSearch might also have capabilities corresponding to those of browser hijackers, which modify browsers by reassigning the homepage, default search engine and new tab/window URL to the addresses of their fake search engines. This significantly impacts on browser use, as each search made through the URL bar and each new tab/window opened redirects to the bogus search engine. These fake searching tools are rarely able to provide unique results, and so they simply redirect to legitimate sites (e.g. Yahoo, Google, Bing and others). Additionally, with a browser hijacker installed, access to the browser settings is denied - or any permitted changes made are automatically reset. Most PUAs can track data - adware and browser hijackers are no exception. They monitor browsing activity (browsing and search engine histories) and collect users' personal information (IP addresses, geolocations and other details). It is highly likely that this gathered data is then shared with third parties (potentially, cyber criminals) seeking to misuse it for financial gain. To summarize, PUAs can cause various browser and system infiltration/infections, lead to financial loss, serious privacy issues and even identity theft. Therefore, you are strongly advised to remove all suspicious applications and/or browser extensions/plug-ins immediately upon detection.

Threat Summary:
Name Ads by TechLetterSearch
Threat Type Adware, Mac malware, Mac virus.
Symptoms Your Mac becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites.
Distribution methods Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers, torrent file downloads.
Damage Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites, loss of private information.
Malware Removal (Mac)

To eliminate possible malware infections, scan your Mac with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
▼ Download Combo Cleaner for Mac
To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

ActionHowEngineFiles, and AreaProduct are some examples of adware designed to infiltrate Mac operating systems. In general, unwanted applications (regardless of type) tend to seem legitimate - they offer various "useful" functions. These features are typically nonoperational and, even if they do work, it is not as advertised. The only purpose of this unwanted content is to generate revenue for the developers. PUAs deliver intrusive ad campaigns, cause redirects to dubious/malicious web pages, hijack browsers and track sensitive data.

How did TechLetterSearch install on my computer?

PUAs can infiltrate devices when disguised as other software (e.g. fake updaters), however, they also proliferate through the download/install set-ups of other products. "Bundling" is the name of this deceptive marketing tactic of packing normal software with unwanted or malicious content. Rushing download and installation processes (e.g. ignoring terms, using pre-set options, etc.) endanger systems with potential infiltration and infections via bundled applications. Some PUAs have "official" promotional pages, from which they can be downloaded, often "free". When an intrusive ad is clicked, it can execute scripts to stealthily download/install PUAs.

How to avoid installation of potentially unwanted applications

All products should be researched carefully, before download/installation or purchase. You are advised to use only official and verified download sources, as opposed to free file-hosting websites, P2P sharing networks (BitTorrent, eMule, Gnutella etc.), third party downloaders or other untrusted channels. Software should be updated with tools/functions provided by legitimate developers. When downloading/installing, read the terms, study all possible options, use the "Custom/Advanced" settings and opt-out of supplementary apps, tools, features and so on. Intrusive advertisements often seem normal and harmless, however, they can redirect to dubious web pages (e.g. gambling, pornography, adult-dating, etc.). If you encounter these ads/redirects, check the system and remove all suspect applications and/or browser extensions/plug-ins from it immediately. If your computer is already infected with TechLetterSearch, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Deceptive application installer promoting TechLetterSearch adware:

Delusive installer used to promote TechLetterSearch

Files related to the TechLetterSearch adware that must be removed:

  • ~/Library/Application Support/com.TechLetterSearchDaemon/TechLetterSearch
  • ~/Library/LaunchDaemons/com.TechLetterSearchDaemon.plist
  • ~/Library/Application Support/com.TechLetterSearch/TechLetterSearch
  • ~/Library/LaunchAgents/com.TechLetterSearch.plist

IMPORTANT NOTE! Rogue setups/apps that promote the TechLetterSearch website are designed to create a new device profile. Therefore, before taking any further removal steps, perform these actions:
1) Click the "Preferences" icon in the menu bar and select "Profiles".

TechLetterSearch preferences step 1

2) Select the "AdminPrefs" profile and delete it.

TechLetterSearch preferences step 2

3) Perform a full system scan with Combo Cleaner anti-virus suite.

After performing these actions, you can proceed with further removal steps for this browser hijacker.

Instant automatic Mac malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of Mac malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner for Mac By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

Quick menu:

Video showing how to remove adware and browser hijackers from a Mac computer:

TechLetterSearch adware removal:

Remove TechLetterSearch-related potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX","NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove ads by techlettersearch related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

Ads by TechLetterSearch removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove ads by techlettersearch related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove ads by techlettersearch related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove ads by techlettersearch related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

Our malware removal guides are free. However, if you want to support us you can send us a donation.

Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Ads by TechLetterSearch QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Ads by TechLetterSearch on your mobile device.
We Recommend:

Get rid of Mac malware infections today:

▼ REMOVE IT NOW
Download Combo Cleaner for Mac

Platform: macOS

Editors' Rating for Combo Cleaner:
Editors ratingOutstanding!

[Back to Top]

To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.