How to remove DevelopEfficient application
Written by Tomas Meskauskas on
What kind of application is DevelopEfficient?
DevelopEfficient is an application that our team has discovered while examining deceptive web pages. We have tested this app and found that it displays annoying advertisements. Software of this type is called adware. Typically, users install software of this type unintentionally.
DevelopEfficient adware in detail
In most cases, clicking on advertisements generated by apps like DevelopEfficient leads to shady web pages (e.g., various scams, download pages for questionable apps, or even malicious sites). It is known that ads coming from advertising-supported apps can be designed to run certain scripts to download (or even install) unwanted software.
We have examined many apps similar to DevelopEfficient and learned that some of them can access sensitive information (such as passwords, credit card details, etc.). Having such apps installed can lead to identity theft, monetary loss, and other problems.
| Name | Ads by DevelopEfficient |
| Threat Type | Adware, Mac malware, Mac virus |
| Detection Names | Avast (Other:Malware-gen [Trj]), Combo Cleaner (Adware.MAC.Generic.26627), ESET-NOD32 (A Variant Of OSX/Adware.Synataeb.G), MAX (Malware (ai Score=65)), Full List (VirusTotal) |
| 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. |
More about adware
Adware is a type of software that shows intrusive advertisements. In addition to displaying ads, adware can hijack a web browser (modify its settings) to promote a fake search engine and (or) gather various information. A big part of advertising-supported apps is promoted/distributed using deceptive methods.
More adware examples are DigitalPaper, MajorSector, and VastVista.
How did DevelopEfficient install on my computer?
One of the most popular ways to trick users into installing apps like DevelopEfficient is to use fake installers (e.g., fake Adobe Flash Player installers). These installers are distributed using shady websites (e.g., web pages claiming that installed software is out of date).
Also, adware is often bundled with other software - it is included in installers as an additional offer. Adware installs after finishing software (that is bundled with adware) without changing "Advanced", "Custom", or similar settings. In some cases, adware installs after clicking on deceptive ads designed to run certain scripts.
How to avoid installation of unwanted applications?
Note that downloading and installing software without changing "Custom", "Advanced", or similar settings available provided in downloaders and installers can cause unexpected downloads or installations. Thus, always check downloaders and installers for unwanted apps.
Also, do not click on advertisements and notifications shown by dubious, questionable web pages. Download apps and files from official pages (do not use P2P networks, third-party downloaders, and similar sources). If your computer is already infected with DevelopEfficient, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.
A pop-up that appears after the installation of DevelopEfficient adware:
DevelopEfficient's Contents folder:
Instant automatic Mac malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced IT 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 seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.
Quick menu:
- What is DevelopEfficient?
- STEP 1. Remove DevelopEfficient related files and folders from OSX.
- STEP 2. Remove DevelopEfficient ads from Safari.
- STEP 3. Remove DevelopEfficient adware from Google Chrome.
- STEP 4. Remove DevelopEfficient ads from Mozilla Firefox.
Video showing how to remove DevelopEfficient adware using Combo Cleaner:
DevelopEfficient adware removal:
Remove DevelopEfficient-related potentially unwanted applications from your "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 adware-related files and folders
Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...
Check for adware generated files in the /Library/LaunchAgents/ folder:
In the Go to Folder... bar, type: /Library/LaunchAgents/
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 exact same string.
Check for adware generated files in the ~/Library/Application Support/ folder:
In the Go to Folder... bar, type: ~/Library/Application Support/
In the "Application Support" folder, look for any recently-added suspicious folders. For example, "MplayerX" or "NicePlayer", and move these folders to the Trash.
Check for adware generated files in the ~/Library/LaunchAgents/ folder:
In the Go to Folder... bar, type: ~/Library/LaunchAgents/
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 exact same string.
Check for adware generated files in the /Library/LaunchDaemons/ folder:
In the "Go to Folder..." bar, type: /Library/LaunchDaemons/
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.
Scan your Mac with Combo Cleaner:
If you have followed all the steps correctly, your Mac should be clean of infections. To ensure 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 the 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 its virus definition database and click the "Start Combo Scan" button.
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.
After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.
Remove malicious extensions from Internet browsers
Remove malicious Safari extensions:
Open the Safari browser, from the menu bar, select "Safari" and click "Preferences...".
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 regular browser operation.
- If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.
Remove malicious extensions from Google Chrome:
Click the Chrome menu icon 
(at the top right corner of Google Chrome), select "More Tools" and click "Extensions". Locate all recently-installed suspicious extensions, select these entries and click "Remove".
- If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.
Remove malicious extensions from Mozilla Firefox:
Click the Firefox menu 
(at the top right corner of the main window) and select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".
- If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.
Frequently Asked Questions (FAQ)
What harm can adware cause?
Typically, adware causes issues such as diminished web browsing experience (due to ads covering website contents), decreased computer performance, or even invaded privacy.
What does adware do?
Advertising-supported applications generate advertisements. In some cases, they can have additional capabilities (e.g., they can hijack web browsers or collect information).
How do adware developers generate revenue?
Most adware developers use affiliate programs as their income channel. They use adware to promote various products, services, web pages, etc.
Will Combo Cleaner remove DevelopEfficient adware?
Yes, Combo Cleaner will remove DevelopEfficient and other installed adware. It is important to mention that manual removal can be challenging because files belonging to adware may remain in the system even after the removal. For this reason, we recommend using Combo Cleaner for removal.
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