Avoid getting scammed by fake "Gas Sensing Solutions (GSS)" emails

Also Known As: possible malware infections
Damage level: Medium

What is "Gas Sensing Solutions (GSS) email scam"?

"Gas Sensing Solutions (GSS) email scam" refers to a spam campaign. The deceptive emails sent through this campaign are disguised as letters from Gas Sensing Solutions (GSS) - a legitimate company. These emails are in no way associated with this company. The goal of the campaign is to promote a phishing file targeting email account log-in credentials.

Gas Sensing Solutions (GSS) email spam campaign

"Gas Sensing Solutions (GSS) email scam" in detail

The scam emails request recipients to verify whether they have received a payment made to them. The letters claim to contain an "e-payment receipt" for reference. This deceptive file requires users to sign in using their email account credentials (passwords). Therefore, by attempting to view it - users will inadvertently expose their email accounts.

Emails are targeted due to being associated with other accounts. Hence, through hijacked mails - control may be gained over connected content. Scammers can use stolen communication platforms (e.g., emails, social media, etc.) to ask for loans or to proliferate malware under the guise of the real owner. Finance-related accounts (e.g., online banking, e-commerce, etc.) can be used to make fraudulent transactions and/or online purchases.

To summarize, by trusting these scam letters, users can experience severe privacy issues, financial losses, and identity theft. If attempts to access the phishing file have already been made, it is advised to immediately change the log-in credentials and contact the official support of all potentially compromised accounts.

Threat Summary:
Name Gas Sensing Solutions (GSS) email scam
Threat Type Phishing, Scam, Social Engineering, Fraud
Fake Claim Emails claim to contain an e-payment receipt.
Disguise Emails are disguised as letters from Gas Sensing Solutions (GSS).
Attachment(s) E-Payment Advice.html (filename may vary)
Detection Names (E-Payment Advice.html) Cyren (URL/Phish.CJ.gen!Eldorado), Fortinet (HTML/Phish.5D60!tr), Ikarus (Phishing.HTML.Doc), Microsoft (Trojan:HTML/Phish.PAJ!MTB), Full List Of Detections (VirusTotal)
Symptoms Unauthorized online purchases, changed online account passwords, identity theft, illegal access of the computer.
Distribution methods Deceptive emails, rogue online pop-up ads, search engine poisoning techniques, misspelled domains.
Damage Loss of sensitive private information, monetary loss, identity theft.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
▼ Download Combo Cleaner
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.

Spam campaigns in general

"Storage Server Failure", "DHL Express Shipment Confirmation email scam", "We noticed a login from a device you don't usually use" - are a couple examples of phishing spam campaigns. Deceptive emails are used not only for various scams but also employed to distribute malware. Due to how widespread spam mail is, it is highly recommended to exercise caution with incoming emails.

How do spam campaigns infect computers?

Spam campaigns proliferate malware via infectious files distributed through them. The files can be attached to or linked inside the scam emails. Malicious files can be in various formats, e.g., archives, executables, PDF and Microsoft Office documents, JavaScript, etc. Upon opening, these files initiate malware download/installation.

For example, Microsoft Office documents infect systems by executing malicious macro commands. This process begins the moment a document is opened in Microsoft Office released prior to 2010. Newer versions have "Protected View" mode that prevents automatic execution of macros. Instead, users can manually enable macro commands (i.e., editing/content).

How to avoid installation of malware?

Suspicious and irrelevant emails must not be opened, especially any attachments or links found in them. It is also recommended to use Microsoft Office versions released after 2010.

Aside from spam mail, malware is spread via dubious download channels (e.g., unofficial and freeware websites, Peer-to-Peer sharing networks, etc.), illegal activation ("cracking") tools, and fake updates. It is advised to always download from official/verified sources and activate/update products with tools provided by genuine developers.

It is crucial to have a dependable anti-virus installed and kept updated. This software has to be used to run regular system scans and to remove threats. If you've already opened malicious attachments, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Text presented in the "Gas Sensing Solutions (GSS)" scam email letter:

Subject: RE: E- Payment receipt


Greetings ********,


We have made the remiitance to your account yesterday please check if your account has credited
Kindly find attahced the e-payment receipt for our reference,
Looking towards hearing from you

Best regards,
Margaret McLean
Account department
Gas Sensing Solutions (GSS) Ltd
60-62 Grayshill Rd, Cumbernauld, UK, G68 9HQ
+44 (0)1236 781 900
| buehler@el-grosshandel.ch+44 (0)1236 781 900

Disclaimer Notice
This e mail and any files transmitted with it is confidential and is
intended only for the use of the recipient(s) named above. If you are not
the intended recipient, any review, retransmission, dissemination,
distribution, printing, copying or use the information contained in this
message or any part thereof in other manner is strictly prohibited. If you
received this e mail in error, please notify the sender immediately by
return e mail and delete the e mail and any of its attachment. Any personal
view or opinion expressed by the sender shall b e understood as neither
given nor endorsed by MJ or any of the companies within the Group.

Appearance of the "Gas Sensing Solutions (GSS)" scam email (GIF):

Gas Sensing Solutions (GSS) scam email appearance (GIF)

Screenshot of the phishing file distributed through the "Gas Sensing Solutions (GSS)" spam campaign ("E-Payment Advice.html"):

Gas Sensing Solutions (GSS) scam email phihsing attachment (E-Payment Advice.html)

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.

Quick menu:

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 1Download 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 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 Combo Cleaner Antivirus for Windows.

Click to post a comment

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.

Our malware removal guides are free. However, if you want to support us you can send us a donation.

About PCrisk

PCrisk logo

PCrisk is a cyber security portal, informing Internet users about the latest digital threats. Our content is provided by security experts and professional malware researchers. Read more about us.

Malware activity

Global malware activity level today:

Medium threat activity

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

QR Code
possible malware infections QR code
Scan this QR code to have an easy access removal guide of possible malware infections on your mobile device.
We Recommend:

Get rid of Windows malware infections today:

Download Combo Cleaner

Platform: Windows

Editors' Rating for Combo Cleaner:
Editors ratingOutstanding!

[Back to Top]

To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available.