Avoid installation of the WSH RAT

Also Known As: WSHRAT malware
Type: Trojan
Distribution: Low
Damage level: Severe

WSH virus removal guide

What is WSH?

WSH (also known as WSHRAT) is the name of a remote access/administration trojan (RAT). Typically, cyber criminals use software of this type to control victims' computers remotely. In this way, they can steal personal details and data, which is then used to generate revenue in various ways. WSH is a powerful RAT that can cause users of infected computers serious problems. If there is reason to believe that WSH is installed on your system, remove/uninstall it immediately.

WSH malware

WSH can be purchased by anyone from the wshsoftware[.]site website. This RAT can be used to steal passwords that are stored on victims' web browsers and email clients. Therefore, cyber criminals can use WSH to steal personal accounts and misuse them for malicious purposes. For example, to send scam emails, trick people into making money transactions, make fraudulent purchases, and so on. Furthermore, cyber criminals can use WSH to install malware on the victim's computer. This RAT can download, upload, and execute files. It is also capable of executing remote scripts and commands. In summary, WSH can be used to infect the victim's computer with malicious software such as ransomware, various Trojans, and other high-risk malware. People with computers infected with ransomware often cannot access their files, since these programs encrypt them using strong encryption algorithms. Typically, the only way to decrypt files is to use software held only by the cyber criminals who designed the ransomware. To get that software, victims must pay a ransom. Furthermore, WSH includes a keylogging feature and thus can be used to record each key pressed. Typically, cyber criminals use keyloggers to steal passwords and other personal details. To avoid damage caused by the WSH remote access trojan/tool, you are strongly advised to remove it immediately.

Threat Summary:
Name WSHRAT malware
Threat Type Remote Access Trojan.
Malicious Process Name(s) Microsoft Windows Based Script Host (generic name of genuine MS Window's wscript.exe process)
Payload This RAT can be used to install various high-risk malware.
Symptoms Trojans are designed to stealthily infiltrate the victim's computer and remain silent, and thus no particular symptoms are clearly visible on an infected machine.
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software 'cracks'.
Damage Stolen banking information, passwords, identity theft, additional installation of malware.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Malwarebytes.
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There are many different RATs online. Some examples are InnfiRAT, Gh0st, and AsyncRAT. Different tools might have different capabilities. In any case, these programs are used to steal personal details, infect computers with other malware, steal accounts, take screenshots and control computers remotely in other ways. Victims usually experience problems relating to data, monetary loss, privacy, browsing safety, and so on.

How did WSH infiltrate my computer?

Research shows that cyber criminals spread WSH through emails (spam campaigns), including TNT, which was discovered by My Online Security. Cyber criminals send emails that contain a link that downloads a ZIP file stored on a Discord server. The archive file contains a malicious JavaScript file, which, if opened/executed, installs the WSH remote access tool. The email used in the TNT spam campaign is disguised as a message from the official TNT company. In fact, TNT has nothing do to with it - cyber criminals often use names of well-known companies to make their emails seem less suspicious. It is presented as an email regarding a package that can be tracked by clicking the link provided. As mentioned, this link leads to the ZIP file, which contains a malicious JavaScript file. In other cases, cyber criminals send emails that contain links leading to download of files such as Microsoft Office documents, PDF files, and executable files such as .exe. They often attach malicious files directly to the email.

How to avoid installation of malware

Do not open web links or files that are attached to irrelevant emails, especially when the emails are received from unknown, suspicious addresses. Neither attached files nor web links that lead to malicious files can infect systems if they remain unopened. Download your software from official, trustworthy websites. Other channels such as Peer-to-Peer networks, unofficial pages, third party downloaders, etc., should not be trusted. Installed software should not be updated through unofficial tools. Use tools or implemented functions provided by official developers only. Licensed (paid) programs should not be activated using unofficial tools - it is illegal to bypass paid activation using 'cracking' software. Furthermore, this often leads to installation of malware. Keep computers safe by having reputable anti-spyware or anti-virus software installed and scan the operating system with it regularly. If you believe that your computer is already infected, we recommend running a scan with Malwarebytes for Windows to automatically eliminate infiltrated malware.

Screenshot of the email used in the TNT spam campaign:

wsh tnt spam campaign

Text in this email:

Subject: TNT Collection Request BH7 178845

Hello [recipient's_email],

PLC-CITY has arranged a shipment for you,

The shipment will arrive at your destination today 18-09-September, and has a TNT consignment number: 178845.

Do you want to follow your package?  CLICK HERE TO FOLLOW YOUR PACKAGE HERE.

If you would like to find out about the many ways TNT helps you to track your shipment, or if you would like to know more about the services provided by TNT, simply connect to
www.tnt.com  and select your location at any time.

TNT Express | Contact TNT | Privacy Policy

2019 © TNT International GmbH. All rights reserved.

———————
This message and any attachment are confidential and meant for security and may be privileged or otherwise protected from disclosure.
If you are not the intended recipient, please telephone or email the sender and delete this message and any attachment from your system.
If you are not the intended recipient you must not copy this message or attachment or disclose the contents to any other person.
Please consider the environmental impact before printing this document and its attachment(s).
Print black and white and double-sided where possible.

WSH download page:

WSH RAT download website

WSH administration panel:

WSH RAT administration panel

Screenshot of a DHL-themed spam email which distributes WSH RAT malware (the attachment is a .gz archive with a malicious JavaScript file within):

WSH RAT-spreading spam email

Text presented within:

Subject: [DHL - 7663622515] DHL On Demand Delivery

Dear Customer,

Please double check the addresses on the waybill documents.
If everything is correct, we expect you to sign and return the attached scanned datasheet.
We apologize for inconvenience in advance!


Kind Regards,

Rita Sousa

Logistics Support

DHL Global Forwarding System

rita.sousa.ext@dhl.com
www.dhl.com

GOGREEN - Climate Protection by DHL
Please consider your environmental responsibility before printing this email.

Another DHL-themed spam email used to spread WSH RAT:

Spam email distributing WSHRAT (2020-06-17)

Text presented within:

Subject: DHL Air Waybill Number: 2901395211

Dear Customer!

We thank you for your coopereation and inform you that your cargo has arrived at warehouse DHL Express's transportation network.

Please sign attached customs declaration of cargo documents attached and return to our agent.

Description:

Air Waybill Number 2901395211 (Physical weight: 1.05 kg ; Seats: 1 ).

The contact details of your important agent for customs declaration of cargo are listed below. To contact our employee, we ask you to use communication by e-mail. At the moment, this is the fastest and most reliable way to communicate with us. Most of our employees now work remotely.

With kind regards,

Valérie Herault International Chartering
DHL Express

Tel : 33 (0) 2 44 69 02 61,
Fax : 33 (0) 2 44 69 02 69
express.dhl.com
Email:valerie.herault@dhl.com

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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How to remove malware manually?

Manual malware removal is a complicated task - it is usually best to allow antivirus or anti-malware programs to do this automatically. To remove this malware we recommend using Malwarebytes 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 is an example of a suspicious program running on a 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 the Autoruns.exe file.

extract autoruns.zip and run autoruns.exe

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck the "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 the Autoruns application and locate the malware file that you want to eliminate.

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

locate the malware file you want to remove

After removing the malware through the Autoruns application (this ensures that the malware will not 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 filename 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 remove any malware from your computer. Note that manual threat removal requires advanced computer skills. If you do not have these skills, leave malware removal to antivirus and anti-malware programs. These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. To keep your computer safe, install the latest operating system updates and use antivirus software.

To be sure your computer is free of malware infections, we recommend scanning it with Malwarebytes 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 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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Removal Instructions in other languages
Malware activity

Global malware activity level today:

Medium threat activity

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

QR Code
WSHRAT malware 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 WSHRAT malware on your mobile device.
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