Company Complaint Email Virus

Also Known As: Company complaint virus
Type: Trojan
Damage level: Severe

Company Complaint Email Virus removal guide

What is Company Complaint Email Virus?

"Company Complaint Email Virus" is a spam email campaign similar to Microsoft Rights Management Email Virus, PayPal Email Virus, and many others. Cyber criminals use this campaign to proliferate a trojan called TrickBot. As usual, cyber criminals send thousands of deceptive email messages that encourage users to open malicious Microsoft Word documents that stealthily download and install TrickBot into the system.

Company Complaint Email Virus malware

The message essentially states that Companies House suspects fraud and, therefore, users are encouraged to view all information within the attached document. Be aware, however, that this is an attempt to trick users into opening the attachment, which infects the system. Companies House is a UK governmental agency and has nothing to do with this spam campaign. Cyber criminals are often disguised as legitimate companies/organizations or governmental agencies. In doing so, they increase the amount of infections proliferated, since users are much more likely to open files that are received from familiar names. TrickBot is an information-tracking trojan. After system infiltration, it hijacks browsers and modifies visited websites so that users' entered login and password details are saved on a remote server controlled by TrickBot's developers. These people might gain access to victims' bank accounts, social networks, and so on. Their aim to generate as much revenue as possible, and so there is a high probability that the criminals will misuse these accounts. Therefore, the presence of TrickBot can lead to serious privacy issues and significant financial loss. If you have recently opened "Company Complaint Email Virus" campaign attachments, your computer is probably infected with the TrickBot trojan. Therefore, you should scan it with a legitimate anti-spyware/anti-virus suite and remove all detected threats.

Threat Summary:
Name Company complaint virus
Threat Type Trojan, Password stealing virus, Banking malware, Spyware
Symptoms Trojans are designed to stealthily infiltrate victim's computer and remain silent 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, victim's computer added to a botnet.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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Company Complaint Email Virus shares many similarities with dozens of other trojan-type viruses that are also distributed using spam email campaigns. For example, FormBook, Adwind, Emotet, etc. Although most of these viruses are also designed to gather information, in some cases, trojans proliferate other viruses (e.g., ransomware). All pose a significant threat to your privacy and computer safety, and thus should be eliminated.

How did Company Complaint Email Virus infect my computer?

"Company Complaint Email Virus" proliferates a malicious Microsoft Word document that, once opened, asks users to enable macro commands, otherwise the content will not be displayed properly. By enabling macros, however, users grant these attachments permission to run commands that download and install TrickBot. Note that this spam campaign targets the Microsoft Windows Operating System only and users of other platforms are safe. Furthermore, although this malware distribution method is simple and effective, it has a significant drawback. Malicious attachments are only able to download TrickBot if they are opened in Microsoft Word. If the .doc file is opened using other app capable of reading this format, malware will not be downloaded.

How to avoid installation of malware?

Have a reputable anti-virus/anti-spyware suite installed and running. Carefully study all emails received and attachments - files that seem irrelevant or have been received from dubious websites should never be opened. We strongly recommend that you download your programs from official sources only and keep installed applications up-to-date. The main reasons for computer infections are poor knowledge and careless behavior - the key to safety is caution. If you have already opened the "Company Complaint Email Virus" attachment, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Text presented in the previously displayed "Company Complaint Email Virus" email letter:

Subject: FW: Company complaint
Good morning, You'll find the company complaint attached below.
James Heath

Another email from "Company Complaint Email Virus" spam campaign:

Company Complaint Email Virus spam campaign sample 2

Text presented in this email message:

Subject: FW: Company Complaint
Company Complaint
A company complaint was submitted to Companies House website.
The submission number is 3290749822
Please quote this number in any communications with Companies House.
All Web Filed documents are attached and are available to view / download for 10 days after their original submission. However it is not possible to view copies of accounts that were downloaded as templates.
Companies House Executive Agency may use information it holds to prevent and detect fraud. We may also share such information, for the same purpose, with other organisations that handle public funds.
If you have any queries please contact the Companies House Contact Centre on +44 (0)303 1234 500 or email enquiries@companies-house.gov.uK
Note: This email was sent from a notification-only email address which cannot accept incoming email. Please do not reply directly to this message.
If you’re unsure an email is from Companies House:
• Do not reply to it or click on any links
• Report the suspicious email to Companies House
All content is available under the Open Government Licence v3.0, except where otherwise stated

Malicious attachment distributed via "Company Complaint Email Virus" spam campaign:

Malicious attachment distributed through Company Complaint Email Virus spam campaign

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

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How to remove malware manually?

Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically. To remove this malware we recommend using Combo Cleaner Antivirus 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 "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 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 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 Combo Cleaner Antivirus for Windows.

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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.

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Malware activity

Global malware activity level today:

Medium threat activity

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

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