Name: OSAMiner Ads
Type: Trojan, malware, Cryptocurrency Miner
Short Description: A dangerous malware which can launch a miner and start a Trojan module.
Symptoms: Higher CPU usage, system freezes, problems with accessing/using Activity Monitor
Distribution methods: Pirated copies of games and software (like Microsoft Office, League of Legends), spam email campaigns, Trojans, fake software updating tools etc.
Damage: Higher electricity bills, loss of unsaved data, hardware overhear, decrease in computer performance
Removal: Use reputable antimalware tool to remove OSAMiner Ads and all installed malware as early as possible from the compromised PC.
Simple guide to delete OSAMiner Ads
OSAMiner Ads is a cryptocurrency miner application that is specific designed to use for mining Monero. This mining Trojan uses run-only AppleScripts. It can run on any Mac operating system. This malware was first detected in 2015 and was still in development and successfully used by the cyber criminals due to its complex structure. If you have OSAMiner Ads inside your system, then you must read article throughout to know how to remove it and protect the device from its further intrusion.
Moreover, OSAMiner Ads embeds one run-only AppleScript inside another and uses the addresses in public websites to download an open source Monero miner called XMR-STAK-RX – Free Monero RandomX Miner. It is used as a tool that prevents infected device from entering into the sleep mode. This script is also designed to kill running processes belonging to certain popular system monitoring and cleaning tools. This results into extremely slowdowns of the system speed and performance and soon become completely unresponsive.
In addition to this, they can steal the confidential data and the sensitive data from the computer. These details might include IP addresses, geo-locations, bank account details etc and even stored personal details. The evil minded cyber criminals misuse the details into generating revenue. Therefore, victims of OSAMiner Ads might lose access to various personal accounts, suffer monetary loss, have their computer infected with some malware, becomes victim of identity theft and encounter other serious problems.
How did malware install on my PC?
According to system researchers, OSAMiner Ads is distributed via pirated copies of various software and games. It is important to mention that malware can also be distributed via unofficial activation tools, fake software updating, other unreliable software download sources, certain Trojans and malspam campaigns. Scam campaigns are used to send spam emails containing malicious attachments or download links of those files attached on them. The content present on such emails present users to click on the provided attachment by disguising it as important, official document. These types of files are in form of Microsoft Office documents, exe files, archive files and so on. In case, these files are executed, it downloads and installs malware. For all these reasons, users are advised not to use any of the aforementioned sources as these are the main channels of malware intrusion.
How to avoid installation of malware?
All programs and files should be downloaded only from official sources and via direct links. Avoid using peer to peer networks, unofficial sites, third party downloader’s etc. Further, it is instructed not to open irrelevant or suspicious emails. Usually, such emails are disguised as important and contain some malicious link or attachment. Installed software needs to be updated by using tools that are designed by official developers.
Third party updating tools should not be used as such tools are designed to install malware. The most important thing you must install reputable antivirus suite and keep it enabled to avoid this kind of infection. If your system is infected with malware or other unwanted software, then we recommend our users to use some reliable antivirus removal tool that has the capability to delete OSAMiner Ads soon from the Mac operating system.
Remove Files and Folders Related to OSAMiner Ads
Open the “Menu” bar and click the “Finder” icon. Select “Go” and click on “Go to Folder…”
Step 1: Search the suspicious and doubtful malware generated files in /Library/LaunchAgents folder
Type /Library/LaunchAgents in the “Go to Folder” option
In the “Launch Agent” folder, search for all the files that you have recently downloaded and move them to “Trash”. Few of the examples of files created by browser-hijacker or adware are as follow, “myppes.download.plist”, “mykotlerino.Itvbit.plist”, installmac.AppRemoval.plist”, and “kuklorest.update.plist” and so on.
Step 2: Detect and remove the files generated by the adware in “/Library/Application” Support folder
In the “Go to Folder..bar”, type “/Library/Application Support”
Search for any suspicious newly added folders in “Application Support” folder. If you detect any one of these like “NicePlayer” or “MPlayerX” then send them to “Trash” folder.
Step 3: Look for the files generated by malware in /Library/LaunchAgent Folder:
Go to Folder bar and type /Library/LaunchAgents
You are in the “LaunchAgents” folder. Here, you have to search for all the newly added files and move them to “Trash” if you find them suspicious. Some of the examples of suspicious files generated by malware are “myppes.download.plist”, “installmac.AppRemoved.plist”, “kuklorest.update.plist”, “mykotlerino.ltvbit.plist” and so on.
Step4: Go to /Library/LaunchDaemons Folder and search for the files created by malware
Type /Library/LaunchDaemons in the “Go To Folder” option
In the newly opened “LaunchDaemons” folder, search for any recently added suspicious files and move them to “Trash”. Examples of some of the suspicious files are “com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, “com.myppes.net-preference.plist”, “com.aoudad.net-preferences.plist” and so on.
Step 5: Use Combo Cleaner Anti-Malware and Scan your Mac PC
The malware infections could be removed from the Mac PC if you execute all the steps mentioned above in the correct way. However, it is always advised to be sure that your PC is not infected. It is suggested to scan the work-station with “Combo Cleaner Anti-virus”.
Once the file gets downloaded, double click on combocleaner.dmg installer in the newly opened window. Next is to open the “Launchpad” and press on “Combo Cleaner” icon. It is advised to wait until “Combo Cleaner” updates the latest definition for malware detection. Click on “Start Combo Scan” button.
A depth scan of your Mac PC will be executed in order to detect malware. If the Anti-virus scan report says “no threat found” then you can continue with guide further. On the other hand, it is recommended to delete the detected malware infection before continuing.
Now the files and folders created by the adware is removed, you have to remove the rogue extensions from the browsers.
Remove OSAMiner Ads from Internet Browsers
Delete Doubtful and Malicious Extension from Safari
Go to “Menu Bar” and open “Safari” browser. Select “Safari” and then “Preferences”
In the opened “preferences” window, select “Extensions” that you have recently installed. All such extensions should be detected and click the “Uninstall” button next to it. If you are doubtful then you can remove all the extensions from “Safari” browser as none of them are important for smooth functionality of the browser.
In case if you continue facing unwanted webpage redirections or aggressive advertisements bombarding, you can reset the “Safari” browser.
Open the Safari menu and choose “preferences…” from the drop-down menu.
Go to the “Extension” tab and set the extension slider to “Off” position. This disables all the installed extensions in the Safari browser
Next step is to check the homepage. Go to “Preferences…” option and choose “General” tab. Change the homepage to your preferred URL.
Also check the default search-engine provider settings. Go to “Preferences…” window and select the “Search” tab and select the search-engine provider that you want such as “Google”.
Next is to clear the Safari browser Cache- Go to “Preferences…” window and select “Advanced” tab and click on “Show develop menu in the menu bar.“
Go to “Develop” menu and select “Empty Caches”.
Remove website data and browsing history. Go to “Safari” menu and select “Clear History and Website Data”. Choose “all history” and then click on “Clear History”.
Remove Unwanted and Malicious Plug-ins from Mozilla Firefox
Delete OSAMiner Ads add-ons from Mozilla Firefox
Open the Firefox Mozilla browser. Click on the “Open Menu” present in the top right corner of the screen. From the newly opened menu, choose “Add-ons”.
Go to “Extension” option and detect all the latest installed add-ons. Select each of the suspicious add-ons and click on “Remove” button next to them.
In case if you want to “reset” the Mozilla Firefox browser then follow the steps that has been mentioned below.
Reset Mozilla Firefox Settings
Open the Firefox Mozilla browser and click on “Firefox” button situated at the top left corner of the screen.
In the new menu, go to “Help” sub-menu and choose “Troubleshooting Information”
In the “Troubleshooting Information” page, click on “Reset Firefox” button.
Confirm that you want to reset the Mozilla Firefox settings to default by pressing on “Reset Firefox” option
The browser will get restarted and the settings changes to factory default
Delete Unwanted and Malicious Extensions from Google Chrome
Open the chrome browser and click on “Chrome menu”. From the drop down option, choose “More Tools” and then “Extensions”.
In the “Extensions” option, search for all the recently installed add-ons and extensions. Select them and choose “Trash” button. Any third-party extension is not important for the smooth functionality of the browser.
Reset Google Chrome Settings
Open the browser and click on three line bar at the top right side corner of the window.
Go to the bottom of the newly opened window and select “Show advanced settings”.
In the newly opened window, scroll down to the bottom and choose “Reset browser settings”
Click on the “Reset” button on the opened “Reset browser settings” window
Restart the browser and the changes you get will be applied
The above mentioned manual process should be executed as it is mentioned. It is a cumbersome process and requires a lot of technical expertise. And hence it is advised for technical experts only. To be sure that your PC is free from malware, it is better that you scan the work-station with a powerful anti-malware tool. The automatic malware removal application is preferred because it doesn’t requires any additional technical skills and expertise.
Download the application and execute it on the PC to begin the depth scanning. Once the scanning gets completed, it shows the list of all the files related to OSAMiner Ads. You can select such harmful files and folders and remove them immediately.