This article will help you to remove Nymaim Trojan horse effectively. Follow the removal instructions for the Trojan horse provided at the end of the article.
Nymaim Trojan is the name of a banking Trojan horse. This Trojan is rather old, but is still found in some way out in the wild, infecting users’ computers. An executable process related to the Trojan horse is involved in spreading it. That process is usually hidden as a legitimate service of your operating system. If the process is found in a temporary folder or the “Windows” folder, then it is malware that got there without your permission and could try to steal credential data and personal information from anybody who has fallen victim to the threat. Nymaim Trojan may also use exhaustive power consumption, so it is in your best interest to remove it as quickly as possible.
|Name||Nymaim Trojan horse|
|Type||Trojan Horse, Miner Malware|
|Short Description||Nymaim is a banking type of Trojan horse that is probably put in your computer system via a similar malware on your computer system.|
|Symptoms||You may see a rise in the usage of your computer’s resources like CPU, RAM or GPU, while your computer will accordingly consume more electric power and may even overheat if a cryptocurrency miner is involved. Otherwise, there are barely any symptoms most of the time, other than a significant system slowdown or frequent system crashes.|
|Detection Tool|| See If Your System Has Been Affected by Nymaim Trojan horse |
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|User Experience||Join Our Forum to Discuss Nymaim Trojan horse.|
Nymaim Trojan – Distribution Methods
Nymaim Trojan can also spread if you come across unknown websites through redirects and advertisements which have some sort of scripts in themselves and load them when you visit a site or click on an advert. Pop-ups, pop-unders, as well as banners could have links inside of them that can redirect you. When visiting such websites, especially with an unknown origin, they could inject the malware inside your computer device. That can happen via any browser.
Nymaim Trojan has also been found to be delivered via exploit kits, or in files (typically using filenames related to popular keyword searches) which are downloaded from different malicious websites.
Nymaim Trojan – Technical Information
Nymaim Trojan is the name of a banking Trojan horse. This Trojan is rather old, but is still found in some way out in the wild, infecting users’ computers. An executable process related to the Trojan horse is involved in spreading it. That process is usually hidden as a legitimate service of your operating system. TheGozNym Banking Trojan back in August 2016 is a relatively newer variant of Nymaim and is still attacking users worldwide. This type of Trojan horses is known to take up a really small portion of your computer’s resources at first, to infiltrate your computer’s defenses, embed itself into system processes and remain undetected until it does what it is designed to do – stealing banking credential data and accounts.
When Nymaim is launched on a device, it will attempt to either lock the screen or download additional malware. If the user is located in a country in Europe or North America, the malware will download a customized lockscreen for that particular country. The lockscreen will display a ransom demand. If the user is in a country for which no customized lockscreen is available, Nymaim will download a second-stage component which can be used at a later time to download additional malware.
The Nymaim Trojan is not a system file and not related to Windows, but could tamper with Windows processes and files as it follows:
→%UserProfile%\Application Data\[RANDOM FOLDER NAME]\[RANDOM FILE NAME]
The Trojan horse will drop the file listed above, once it is executed on a compromised machine.
Next, the Trojan creates the following registry entry so that it executes whenever Windows starts:
→HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce\”[RANDOM STRING]” = “%SystemDrive%\Documents and Settings\All Users\Application Data\[RANDOM FOLDER NAME]\[RANDOM FILE NAME]”
The Nymaim Trojan then creates the following registry entry:
→HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\”Shell” = “%SystemDrive%\Documents and Settings\All Users\Application Data\[RANDOM FOLDER NAME]\[RANDOM FILE NAME],explorer.exe”
Nymaim Trojan malware is highly likely to make some additional components that will aid it to achieve its purpose to full effect. Thus, after it being executed on the system, it may establish a remote connection to a command and control server where all other malicious files are available. There are some essential Windows folders in which the malicious files can be dropped:
Here is one of the ransom page lockscreens that show up related to the Nymaim Trojan:
Besides everything said above, the Nymaim Trojan will also attempt to connect to one of the following locations in order to update itself or download other malware:
So, stopping your Internet connection is probably a good idea if you are suspecting that something fishy is going on with your computer system.
Below you can see some useful tips that can help you to prevent similar miner malware to install onto your PC, in the future:
- Run programs inside a sandbox environment
- Install an advanced anti-malware protection
- Update your mostly-used programs and software in general
- Update your OS with security updates
- Install an ad-blocker application
- Be wary around your e-mails and don’t open them unless you know the source
- Disable macros in Microsoft Office Applications
- Keep your firewall ON
Nymaim Trojan will probably try to lock your screen and show a ransom page, if it can’t extract credential information or it can run both modules (searching for credential data and displaying a ransom note via a lockscreen function) simultaneously. It is highly recommend that you remove the malware threat, because the Nymaim Trojan can degrade your system’s lifespan above everything else listed above. Not to mention that this might cause your computer to overheat and crash frequently.
Remove Nymaim Trojan Completely
To remove Nymaim Trojan manually from your computer, follow the step-by-step removal tutorial written down below. In case this manual removal does not get rid of the miner malware completely, you should search for and remove any leftover items with an advanced anti-malware tool. Such software can keep your computer secure in the future.