What is Interhydro email virus?
When cybercriminals use emails to deliver malware, they send malicious attachments or website links. Their main goal is to trick recipients into opening a file designed to install malicious software. Cybercriminals behind this email are pretending to be Interhydro (a legitimate French company). They use this email to deliver FormBook malware.
Interhydro email virus in detail
Cybercriminals behind this email attempt to trick recipients into believing that the file attached to it ("Proforma invoice.doc") is a proforma invoice and a packing list. Once opened, that document asks for permission to enable editing (macros commands). It installs FormBook after enabling macros commands in it.
FormBook can collect clipboard data, visited websites, take screenshots, extract saved login credentials (usernames. passwords, etc.), record keystrokes/keyboard input. Also, it can execute commands, download and execute files and perform other tasks that could cause the installation of other malware (for example, ransomware).
|Threat Type||Trojan, password-stealing virus, banking malware, spyware.|
|Hoax||Email has a proforma invoice from Interhydro company attached to it|
|Attachment(s)||Proforma invoice.doc (its name may vary)|
|Detection Names||Avast (RTF:Obfuscated-gen [Trj]), Combo Cleaner (Trojan.Exploit.MSOfficeWord.GenericKD.46912504), ESET-NOD32 (A Variant Of Generik.BRKWYQX), Kaspersky (UDS:DangerousObject.Multi.Generic), Microsoft (Exploit:O97M/CVE-2017-11882.BKQT!MTB), Full List Of Detections (VirusTotal)|
|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 passwords and banking information, identity theft, the 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.
Malicious emails in general
Most cybercriminals disguise malicious emails as important, official documents from legitimate companies (in this case, Interhydro). Recipients install malware after opening malicious attachments (or files downloaded via provided links). More examples of malspam campaigns are "Taxve Inc.", "UAT Feedback", and "Assurance Certificates".
How did "Interhydro email virus" infect my computer?
Microsoft Office 2010 and newer versions have the Protected View mode - they do not allow malicious documents to infect computers without enabling macros commands. Older MS Office versions do not have the aforementioned mode. Thus, malicious documents opened with them infect computers automatically.
How to avoid installation of malware?
Attachments or links in irrelevant emails sent from unknown or suspicious addresses should not be opened - they could be malicious. Downloads from unreliable sources like unofficial pages, third-party downloaders, Peer-to-Peer networks should not be opened as well. Files and programs should be downloaded only from legitimate pages.
Installed programs have to be updated or activated with tools provided by their developers - most third-party tools are malicious. The operating system should have a reputable antivirus or anti-spyware software installed on it. The system should be scanned for malware on a regular basis.
If you've already opened "Interhydro email virus" attachment, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.
Appearance of the fake Interhydro email (GIF):
Text presented in the fake Interhydro email:
Re: Revised offer with Proforma invoice and packing lists
Good day ,
I redid the documents as requested.
I divided them into 3 proforma.
One for each shipment. I think this is necessary for obtaining the 3 IDFs.
Remaining at your disposal for any further information
Import-export sales administration
17 Professor Jean Bernard Street
Korner - BAT C - 2nd floor
69007 LYON, France
TEL: +33 (0) 4 78 33 09 09
FAX: +33 (0) 4 78 33 07 28
Screenshot of the malicious attachment ("Proforma invoice.doc"):
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:
- What is Interhydro email virus?
- STEP 1. Manual removal of FormBook malware.
- STEP 2. Check if your computer is clean.
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:
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:
Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:
Restart 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.
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.
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.
Video showing how to start Windows 10 in "Safe Mode with Networking":
Extract the downloaded archive and run the Autoruns.exe file.
In 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.
Check 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".
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.
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.