LamePyre Virus (Mac)

Also Known As: OSX.LamePyre virus
Type: Mac Virus
Distribution: Low
Damage level: Severe

How to remove "LamePyre" from Mac?

What is "LamePyre"?

Discovered by malware security researcher, Adam Thomas, the LamePyre virus claims to be communication software called Discord (designed for video gaming communities). In fact, LamePyre is a high-risk trojan capable of opening a system backdoor, capturing screenshots, and then sending them to a remote server.

LamePyre virus

As mentioned above, LamePyre claims to be a Discord app, however, LamePyre developers have not disguised this malware properly - they have simply used Discord's icon. Therefore, once LamePyre is executed, nothing appears on victims' computer screens. Other similar viruses that use this disguise open apps and only then perform malicious actions in the background. Following infiltration, LamePyre captures screenshots and sends them to a remote Command & Control (C&C) server. Thus, cyber criminals can receive various sensitive information. In addition, LamePyre runs a Python script that opens a backdoor called EmPyre. This allows cyber criminals to remotely run commands and perform various actions on the infected system. Therefore, an opened backdoor can lead to various system infections. Furthermore, to keep the code running, LamePyre creates a launch agent called "com.apple.systemkeeper.plist". Recently, EmPyre was used to infect computers with the XMRig cryptominer. Although the miner itself is legitimate, its presence without users' consent can be very frustrating (system performance is reduced significantly). The presence of LamePyre might have serious consequences and should be eliminated immediately. If you have recently opened a Discord app downloaded from an unofficial source, you should immediately scan the system with a reputable anti-virus/anti-spyware suite (such as Combo Cleaner) and eliminate all threats.

Threat Summary:
NameOSX.LamePyre virus
Threat TypeMac malware, Mac virus
SymptomsYour Mac became slower than normal, you see unwanted pop-up ads, you get redirected to shady websites.
Distribution methodsDeceptive pop-up ads, free software installers (bundling), fake flash player installers, torrent file downloads.
DamageInternet browsing tracking (potential privacy issues), displaying of unwanted ads, redirects to shady 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.

The internet is full of viruses that share similarities. Most share the same purpose: to record sensitive information and proliferate other viruses (cause chain infections). These viruses pose a significant threat to your privacy and computer safety. Their presence might lead to significant data and financial loss, or even identity theft. Therefore, remove this malware immediately.

How did potentially unwanted applications install on my computer?

As mentioned above, LamePyre claims to be a Discord application, and thus it is likely that users will download and execute this malware inadvertently. Cyber criminals typically proliferate disguised viruses using peer-to-peer (P2P) networks (such as eMule, torrents, etc.), freeware download websites, free file hosting sites, and other unofficial download websites. They present these viruses as legitimate software. In doing so, criminals attempt to give the impression of legitimacy and trick users into downloading and installing/running malware. Malware is often distributed using spam email campaigns (malicious attachments), trojans (chain infections), and various fake software updaters, which exploit outdated software bugs/flaws or install malware rather than updates.

How to avoid installation of potentially unwanted applications?

To prevent this situation, be very cautious when browsing the internet and downloading/installing/updating software. Avoid using third party downloaders/installers and similar sources. Download your programs from official sources only, using direct download links. Furthermore, think twice before opening email attachments. If the email seems irrelevant or the sender is suspicious/not recognized, do not open any the attached links/files. Keep installed programs updated. To achieve this, however, use implemented functions or tools provided by the official developer. Having a reputable anti-virus/anti-spyware suite is also very important, since these tools can detect and eliminate malware before it does any harm. The main reasons for computer infections are poor knowledge and careless behavior - the key to safety is caution. If your computer is already infected with LamePyre, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate it.

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:

Potentially unwanted applications removal:

Remove 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 osx.lamepyre virus 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.

OSX.LamePyre virus removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove osx.lamepyre virus 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 osx.lamepyre virus 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 osx.lamepyre virus 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.

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Malware activity

Global malware activity level today:

Medium threat activity

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

QR Code
OSX.LamePyre virus 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 OSX.LamePyre virus on your mobile device.
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