How to remove GraceWire trojan from the operating system?

Also Known As: GraceWire stealer
Type: Trojan
Distribution: Low
Damage level: Severe

GraceWire virus removal guide

What is the GraceWire trojan?

GraceWire is malicious program, classified as an information-stealing trojan (stealer). Malware within this classification targets a wide variety of data and can cause especially severe issues. GraceWire has been observed being proliferated through a malicious website, which requests users to complete CAPTCHA to verify that they are not a robot. When this is done, the site downloads a virulent Excel spreadsheet that upon opening initiates the infection process of GraceWire.

GraceWire malware detections on VirusTotal

Information stealing malware can have a broad range of functionalities for data theft. Stealers typically target log-in credentials (i.e. IDs, usernames and passwords) of various accounts. They can extract this sensitive information from browsers and other applications. Accounts of interest include (but are not limited to): emails, social networking, social media, messengers, data storage, file sharing, e-commerce, online money transferring, cryptocurrency wallets (cryptowallets), banking and others. Through stolen social/communication accounts (e.g. emails, messengers, etc.) cyber criminals can ask the contacts/friends for loans and/or spread malicious programs by sharing infectious files - under the guise of the account's genuine owner. Emails are of particular interest, as they are commonly connected with other accounts; hence, through them - criminals may be able to gain access to associated accounts. Hijacked banking accounts and ones that deal with or store financial information (e.g. cryptowallets, online store and money transferring accounts, etc.) can be used for fraudulent transactions and/or to make online purchases. Stealer trojans can have other abilities to facilitate data theft. Some have keylogging features, in other words - they can record key strokes. This endangers the privacy and safety of any and all typed information. Said functionality is also primarily used to steal account log-in credentials. However, this is not the exclusive use of stealers. Exactly what information is targeted and how it is them applied, depends on the malware's capabilities and cyber criminals' modus operandi. In summary, GraceWire infections can result in financial losses, serious privacy issues and identity theft. If it is suspected/known that GraceWire trojan (or other malware) has already infected the system - an anti-virus must be used to eliminate it without delay.

Threat Summary:
Name GraceWire stealer
Threat Type Trojan, password-stealing virus, banking malware, spyware.
Detection Names Avast (FileRepMalware), BitDefender (Trojan.GenericKD.43346498), ESET-NOD32 (A Variant Of Win32/GenKryptik.EMNX), Kaspersky (Trojan.Win32.Zenpak.ahbm), Full List (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)

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CollectorStealerMistProstoClipper are a couple examples of information-stealing malware. These malicious programs can have other abilities, not just ones geared towards stealing data. Some obtain information through spying functionalities, e.g. taking screenshots and/or recording the screen, making videos through integrated or connected hardware (webcams), etc. They may be able to exfiltrate (i.e. download) files stored in the infected system as well. Chain infectious are another potential threat, as certain trojans can download/install additional malware (e.g. ransomware, cryptominers, etc.). Regardless of how malicious programs operate, the end-goal is the same - to generate revenue for the cyber criminals using them. Due to the immense threat posed to device/user safety, all malware infections must be removed immediately upon detection.

How did GraceWire infiltrate my computer?

As mentioned in the introduction, at the time of research GraceWire stealer was distributed via malicious website. This webpage asked users to verify CAPTCHA, doing so resulted in the download of an infectious Excel document. When opened, the latter initiated download/installation of GraceWire. To elaborate, virulent Microsoft Office documents (like Excel spreadsheets) infect systems by executing malicious macro commands. In MS Office versions released before 2010 this process is automatic. However, the newer version have "Protected View" mode, which prevents macros from being executed upon a document's opening. In these version users are requested to enable macro commands (i.e. to enable editing/content); therefore, the infection process is triggered only after macros are enabled manually. In general, popular malware distribution methods include - spam campaigns, illegal activation tools ("cracks"), fake updaters and untrustworthy download channels. Spam campaigns are large scale operations, during which scam emails are sent by the thousand. These deceptive letters contain download links of virulent files and/or the files are attached to the emails. Aside from Microsoft Office documents, malicious files can be - archives (ZIP, RAR, etc.), executables (.exe, .run, etc.), PDF documents, JavaScript, and so on. When these files are opened - the infection process is jumpstarted. Rather than activate licensed product, "cracking" tools can download/install malware. Illegitimate updaters cause infections by exploiting weaknesses of outdated products and/or simply install malicious software, instead of the promised updates. Malware can also be unintentionally downloaded from dubious sources, e.g. unofficial and free file-hosting sites, Peer-to-Peer sharing networks and other third party downloaders.

How to avoid installation of malware?

It is recommended to always exercise caution when browsing the Web. Suspicious and/or irrelevant emails must not be opened, especially any attachments or links found in them - as that can result in a high-risk infection. All downloads must be done from official and trustworthy sources. It is just as important to activate and update products using functions/tools provided by genuine developers. Illegal activation tools ("cracks") and third party updaters are advised against use, as they often proliferate malware. It is crucial to have a reputable anti-virus/anti-spyware installed and kept updated. This software is to be used for regular system scans and removal of detected/potential threats. 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 malicious website designed to trick users into completing CAPTCHA in order to download the virulent Excel document:

GraceWire trojan proliferating website

Screenshot of the malicious Excel document, proliferating GraceWire trojan:

Malicious Excel file spreading GraceWire trojan

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 - usually it is 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 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 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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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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GraceWire stealer QR code
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