Today we’d like to introduce an intriguing piece of malware called Nimisi – a Trojan specifically designed to steal your sensitive data once it’s comfortably crept into your system.
What Does Nimisi Do?
What makes Nimisi an intriguing Trojan is that it injects a code into running processes. This feature not only makes it harder to detect and remove, but it serves great to hackers who aim to reach your banking details, login credentials for emails, social media websites, online games, and what not.
According to Microsoft.com, once in your system, it creates the following files:
- %TEMP% \iepv.exe
- %TEMP%\passwordfox.exe
Malware researchers have spotted Nimisi connecting to the www.download.windowsupdate.com and tazbot.mooo.com remote hosts because, according to Microsoft, it needs to:
- Check for an Internet connection
- Download and run additional malware
- Report a new infection to its author
- Receive instructions from a malicious hacker
- Search for your IP address
- Upload the data taken from your PC
- Validate a digital certificate
How to Know If You Have Nimisi
The most certain symptom of Nimisi’s presence in your system is the awdaw2214a
mutex.
In computing, “mutex” derives from “mutual exclusion object” and is a component created to prevent more than one copy of the threat running on your computer. It allows multiple program threads to share the same resource, although not simultaneously.
How Does Nimisi Enter Your PC?
Trojans usually enter your PC via infected websites, files, emails, attachments, etc. Nimisi has been detected to sneak into your system while you download free programs from the Web, too. To keep your system clean and sensitive data safe, therefore, you must always pay attention to what files/websites you open, and what programs you install.
Keep in mind that in most cases the freeware available out there is usually bundled with PUPs (potentially unwanted programs) and various malicious components that could truly destroy your system and even your life.
Remove Nimisi Immediately
As you have already read, Nimisi is dangerous because it’s specifically designed to steal your data. On top of that, it can also delete or hide important system files and use your memory space and system resources in order to run. All that could cause system crashes and even the “Blue Screen of Death.”
To remove Nimisi, you must use a legit anti-malware program. Our experts note that the virus is tricky to get rid of, therefore trying to remove it manually or via a random anti-virus tool is highly discouraged if you don’t want to worsen the situation.
Spy Hunter FREE scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the malware tool.
- Guide 1: How to Remove Nimisi from Windows.
- Guide 2: Get rid of Nimisi from Mac OS X.
- Guide 3: Remove Nimisi from Google Chrome.
- Guide 4: Erase Nimisi from Mozilla Firefox.
- Guide 5: Uninstall Nimisi from Microsoft Edge.
- Guide 6: Remove Nimisi from Safari.
- Guide 7: Eliminate Nimisi from Internet Explorer.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
How to Remove Nimisi from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Nimisi





Step 2: Uninstall Nimisi and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:



Step 3: Clean any registries, created by Nimisi on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by Nimisi there. This can happen by following the steps underneath:



Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Get rid of Nimisi from Mac OS X.
Step 1: Uninstall Nimisi and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Nimisi via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove Nimisi files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Nimisi, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove Nimisi from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Erase Nimisi from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Uninstall Nimisi from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove Nimisi from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Nimisi will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Eliminate Nimisi from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.