How to uninstall Jirin.app from computers
Written by Tomas Meskauskas on (updated)
What kind of application is Jirin.app?
Our examination of the Jirin.app has revealed that this app is one of the many adware-type apps belonging to the Pirrit family. The purpose of this program is to deliver intrusive and potentially misleading advertisements to users. Thus, Jirin.app should be uninstalled from devices.
Jirin.app adware in detail
Jirin.app can generate various ads in forms of pop-ups, coupons, banners, etc., designed to promote websites, products, and services. However, numerous security vendors flag Jirin.app as malicious. Thus, the advertisements from this app can lead users to potentially malicious web pages.
These ads may lead users to pages hosting malware or other unwanted software like browser hijackers. Also, they may promote technical support scams designed to trick users into paying for fake services (or products), providing sensitive information, executing malware, providing scammers with remote access to their computers, or taking other actions.
Moreover, users may land on phishing sites designed to steal login credentials, credit card details, or other sensitive information. Additionally, ads from Jirin.app may take users to fake lotteries, surveys, investment offers, and similar schemes. Some of the ads displayed by Jirin.app may be designed to initiate unwanted downloads and installations.
Therefore, ads from Jirin.app and similar programs cannot be trusted. In addition to delivering deceptive ads, Jirin.app may gather browsing-related and other information. This could include details about the websites users visit, browsing habits, device information, IP addresses, names, email addresses, and even more sensitive details.
Overall, Jirin.app is an untrustworthy application that should be avoided and removed from affected devices immediately to prevent privacy issues and other problems.
| Name | Ads by Jirin.app |
| Threat Type | Adware, Mac malware, Mac virus |
| Detection Names | Avast (MacOS:AdAgent-EA [Adw]), Combo Cleaner (Trojan.MAC.Generic.110818), ESET-NOD32 (OSX/Adware.Pirrit.CP), Kaspersky (HEUR:Backdoor.OSX.Twenbc.g), 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), 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. |
Conclusion
In conclusion, having Jirin.app installed can lead to annoyance and slower device performance. Also, it can cause issues related to privacy and online safety. Thus, it is advisable to avoid downloading and installing apps like Jirin.app, especially when they are hosted on dubious pages or similar platforms.
More examples that can display unwanted ads are Psoriasis, Bc20, and App_updater.
How did Jirin.app install on my computer?
Adware is often promoted and distributed using deceptive methods. For example, users may install adware through fake warnings or other pop-ups, or deceptive ads on dubious websites. Notifications from sites of this kind can also lead to unwanted downloads and installations. Also, users may download adware via P2P networks, third-party downloaders or app stores, and similar channels.
Another popular distribution channel is bundling. Free or unreliable programs are often packaged with adware or other unwanted apps. Users unknowingly agree to install adware with other programs when they finish installations without declining unwanted offers (changing the provided options/settings).
How to avoid installation of unwanted applications?
Always download apps from official web pages and stores (the same applies to files). When installing programs (especially free ones or those downloaded from unofficial sources), check their installers for unwanted offers and deselect unwanted apps. Avoid clicking on ads, pop-ups, and similar content encountered on shady sites.
Do not permit questionable websites to send notifications. Keep your browser, other installed software, and the operating system up to date. Use a reliable security tool and regularly scan your computer for unwanted apps. If your computer is already infected with Jirin.app, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.
When removing Jirin.app, it is important to check these folders for its components (the filenames may differ in each folder, yet every single one should contain "jirin.app"):
- ~/Library/LaunchAgents
- /Library/LaunchDaemons
- /Library/LaunchAgents
- /Library/StartupItems
A warning that appears before installing Jirin.app adware:
Text in this warning:
"jirin.app" will damage your computer.
This file was downloaded on a unknown date.
OK
Show in Finder
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
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Quick menu:
- What is Jirin.app?
- STEP 1. Remove Jirin.app related files and folders from OSX.
- STEP 2. Remove Jirin.app ads from Safari.
- STEP 3. Remove Jirin.app adware from Google Chrome.
- STEP 4. Remove Jirin.app ads from Mozilla Firefox.
Video showing how to remove adware and browser hijackers from a Mac computer:
Jirin.app adware removal:
Remove Jirin.app-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?
In most cases, the negative consequences of having adware installed are the slower performance of the affected devices and annoying advertisements appearing on the screen or within websites.
What does adware do?
This kind of software delivers advertisements and may also be designed to collect browsing data (or even sensitive information), and hijack browsers by changing their settings.
How do adware developers generate revenue?
Developers of adware typically earn income through participation in affiliate programs. When users purchase the promoted product or service, adware developers receive a commission. Additionally, they may monetize adware by selling user data or employing alternative methods.
Will Combo Cleaner remove Jirin.app adware?
Combo Cleaner has the capability to scan your computer and effectively remove adware. Depending solely on manual removal might not completely eradicate adware, as some files may persist in the system. Combo Cleaner ensures thorough removal, leaving no files associated with adware or other unwanted software behind.
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