Prevent installation of Agent Tesla

Also Known As: KNAPP EQUIPMENT email spam virus
Type: Trojan
Distribution: Low
Damage level: Severe

"KNAPP EQUIPMENT Email Virus" removal guide

What is "KNAPP EQUIPMENT Email Virus"?

KNAPP EQUIPMENT is the name of a spam campaign (scam) that cyber criminals use to spread the Agent Tesla malicious software. To achieve it, they send emails that include an executable file which, if opened, downloads and installs the aforementioned malware. As a rule, emails of this type are disguised as official and important. However, they should never be trusted and files attached to them opened.


Scammer behind this email disguises himself as Victoria Mckenzie from KNAPP EQUIPMENT CO.,LTD. Recipients are asked to check availability of some product that can be viewed by opening the attached file as soon as possible. As we mentioned in our introduction, the attachment is an executable file that is designed to install Agent Tesla, a remote access tool which allows to access computers remotely. It is a legitimate tool, however, cyber criminals often use programs of this type for malicious purposes. Agent Tesla includes a keylogging feature which allows users (in this case cyber criminals) to record keystrokes. In other words, to record data entered (typed) with a keyboard. This feature can help cyber criminals to steal logins, passwords used to access banking, email, and other accounts. Having such information stolen can lead to serious privacy issues and financial loss. Stolen accounts could be used to extract money from other people too. For example, victim's account could be used to borrow money from people, trick them into making banking transactions or even into installing the same software which would allow cyber criminals to infect even more computers/spread Agent Tesla further. If there is any reason to believe that Agent Tesla is installed on a computer (and it was not done on purpose), it should be removed immediately.

Threat Summary:
Name KNAPP EQUIPMENT email spam virus
Threat Type Remote Access Tool which includes keylogging feature.
Hoax Cyber criminals behind this email present it as letter from from KNAPP EQUIPMENT CO., and encourage recipients to open the attachment which supposed to contain information about some product.
Attachment(s) 40784637397.scan.pdf.exe
Detection Names (filejhh.exe) ESET-NOD32 (A Variant Of MSIL/Kryptik.SJX), Kaspersky (UDS:DangerousObject.Multi.Generic), Microsoft (Trojan:Win32/CryptInject.YU!MTB), Symantec (ML.Attribute.HighConfidence), Full List Of Detections (VirusTotal)
Symptoms Trojans are designed to stealthily infiltrate victim's computer and remain silent thus no particular symptoms are clearly visible on an infected machine.
Payload Agent Tesla RAT
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software cracks.
Damage Stolen banking information, passwords, identity theft, victim's computer added to a botnet.

To eliminate KNAPP EQUIPMENT email spam virus our malware researchers recommend scanning your computer with Spyhunter.
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Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Other examples of similar spam campaigns are "Meed Email Virus", "Transfast Email Virus", "FedEx Express Email Virus". Typically, cyber criminals use them with a purpose to spread various malware. For example, malicious software such as TrickBot, Adwind, Hancitor, FormBook. They could be used to spread ransomware as well.

How did "KNAPP EQUIPMENT Email Virus" infect my computer?

As a rule, spam campaigns can be used to infect computers/spread malware in only one way - through attached files. Attached files usually are Microsoft Office or PDF documents, executable files (like .exe), JavaScript files, archive files like ZIP, RAR, and so on. They cannot do any damage if recipients do not open them. Here is an example of how a Microsoft Office document infects a computer: when opened, it usually asks for a permission to enable macro commands (enable editing). If such permission is given, the attached file starts a download and then installation process of some malware.

How to avoid installation of malware?

To protect computers from being infected through emails, we recommend not to open files or web links that are presented in irrelevant emails. Same applies to emails that are sent from unknown, suspicious addresses. Typically, these emails are disguised as important, official and so on. However, it does not mean that they should be trusted. Additionally, we recommend to use Microsoft Office versions were released after year 2010. These versions include the "Protected View" mode which prevents malicious documents from downloading and installing malware. If you've already opened "KNAPP EQUIPMENT Email Virus" attachment, we recommend running a scan with Spyhunter for Windows to automatically eliminate infiltrated malware.

Text presented in the "KNAPP EQUIPMENT Email Virus" email letter:

Dear, Good day to you! This is Victoria Mckenzie from KNAPP EQUIPMENT CO.,LTD One of your customer directed us to contact you regarding this product as attached below, Please confirm availability of attached products and quote your lowest price on urgent bases. Await your quick response. Best Regards, Victoria McKenzie KNAPPel: +966 20 39284319 Fax: +966 20 83482139 Email: kna /  No 22, Xinshuikeng Section, Shixin Road, Dalong Street, Panyu

Malicious process ("40784637397.scan.pdf.exe") running in Task Manager:

Agent Tesla running in Task Manager

Screenshot of a malicious executable used to distribute Agent Tesla detected as a threat in VirusTotal:

Agent Tesla executable detected as a threat by VirusTotal

Instant automatic removal of KNAPP EQUIPMENT email spam virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of KNAPP EQUIPMENT email spam virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

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How to remove malware manually?

Manual malware removal is a complicated task, usually it's better to let antivirus or anti-malware programs do it automatically. To remove this malware we recommend using  Spyhunter for Windows. If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here's an example of a suspicious program running on user's computer:

malicious process running on user's computer sample

If you checked the list of programs running on your computer, for example using task manager and identified a program that looks suspicious you should continue with these steps:

manual malware removal step 1 Download a program called Autoruns. This program shows auto-start applications, Registry and file system locations:

screenshot of autoruns application

manual malware removal step 2Restart your computer into Safe Mode:

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":


manual malware removal step 3Extract the downloaded archive and run Autoruns.exe file.

extract and run autoruns.exe

manual malware removal step 4In the Autoruns application click "Options" at the top and uncheck "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure click the "Refresh" icon.

Click 'Options' at the top and uncheck 'Hide Empty Locations' and 'Hide Windows Entries' options

manual malware removal step 5Check the list provided by Autoruns application and locate the malware file that you want to eliminate.

You should write down it full path and name. Note that some malware hides their process names under legitimate Windows process names. At this stage it's very important to avoid removing system files. After you locate he suspicious program you want to remove right click your mouse over it's name and choose "Delete"

locate the malware file you want to remove

After removing the malware through Autoruns application (this ensures that the malware won't run automatically on the next system startup) you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the file of the malware be sure to remove it.

searching for malware file on your computer

Reboot your computer in normal mode. Following these steps should help remove any malware from your computer. Note that manual threat removal requires advanced computer skills, it's recommended to leave malware removal to antivirus and anti-malware programs. These steps might not work with advanced malware infections. As always it's better to avoid getting infected that try to remove malware afterwards. To keep your computer safe be sure to install latest operating system updates and use antivirus software.

To be sure your computer is free of malware infections we recommend scanning it with Spyhunter for Windows.

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 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 virus and spyware activity level today:

Medium threat activity

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

QR Code
KNAPP EQUIPMENT email spam virus QR code
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Platform: Windows

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