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How to remove CopperStealer malware from the operating system?

Also Known As: CopperStealer virus
Type: Trojan
Damage level: Severe

What is CopperStealer?

CopperStealer, also known as Mingloa, is a malicious program. It is designed to steal sensitive/personal information, and it has the ability to cause chain infection (i.e., download/install additional malware).

Significant activity of CopperStealer has been observed in Brazil, India, Indonesia, Pakistan, and the Philippines. At the time of research, this malware had been noted being spread via websites offering illegal activation tools ("cracks") for licensed software products.

CopperStealer malware detections on VirusTotal

CopperStealer has basic anti-analysis functionalities, i.e., it can detect when it is run on several different virtual machines. This malicious program's primary feature is extraction of saved log-in credentials (usernames/passwords) and Internet cookies from certain browsers.

It mainly targets the credentials of Facebook and Instagram business-oriented accounts. However, variants of CopperStealer also target Amazon, Apple, Bing, Google, PayPal, Tumblr, and Twitter account/platform/service log-in credentials.

The malware can obtain Facebook-related credentials from the following browsers - Google Chrome, Microsoft, Edge, Mozilla Firefox, Opera, and Yandex.

Additional information that CopperStealer attempts to extract includes - friend lists, user customized advertising accounts, and websites with granted/elevated permissions. Furthermore, CopperStealer can infect the compromised system with additional malware (e.g., trojans, ransomware, cryptominers, etc.).

How cyber criminals monetize the collected information depends on their modus operandi.

Hijacked social networking, social media, and messaging platforms may be used to run advertisement campaigns, proliferate malware (via shared infectious files/links), or ask friends/contacts for loans - under the guise of the genuine owner.

Finance-related accounts (e.g., banking, online money transferring, digital wallet, e-commerce, etc.) can be used to make fraudulent transactions and/or online purchases. To summarize, CopperStealer can cause multiple system infections, severe privacy issues, financial losses, and lead to identity theft.

If it is suspected/known that CopperStealer (or other malware) has already infected the system - an anti-virus must be used to remove it without delay.

Threat Summary:
Name CopperStealer virus
Threat Type Trojan, password-stealing virus, banking malware, spyware.
Detection Names Avast (Win32:Trojan-gen), BitDefender (Gen:Variant.Zusy.356181), ESET-NOD32 (A Variant Of Win32/TrojanDropper.Agent.SML), Kaspersky (HEUR:Trojan-Dropper.Win32.Dapato.pef), Microsoft (Trojan:Win32/Tnega!ml), Full List Of Detections (VirusTotal)
Malicious Process Name(s) DeltaCopy Server Console (process name may vary)
Related Domains keyninja[.]com, startcrack[.]com, piratewares[.]com
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.
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EliteStealerAdesSn0wsLoggerSnake, and Alfonso are some examples of other information-stealing malicious programs. Malware can have a wide variety of heinous functionalities, and these functions can be in different combinations.

Common abilities include (but are not limited to): additional malware download/installation, extraction of content/information from the device and/or installed applications, data encryption/ access disablement for ransom purposes (ransomware), use of system resources to generate cryptocurrency (cryptominers), spying (recording of audio, video, keystrokes, etc.), enablement of remote access and control over the machine, and so on.

Regardless of how malware operates, it poses a serious threat to device and user safety. Therefore, system infections must be eliminated immediately upon detection.

How did CopperStealer infiltrate my computer?

CopperStealer has been spread through sites offering illegal "cracking" tools intended to activate licensed software. The websites are noteworthy for proliferating malicious programs and PUAs (Potentially Unwanted Applications). Distributing malware via "cracks" is a standard distribution method.

It is also frequently pushed through fake updaters, which cause infections by exploiting weaknesses of outdated software and/or by installing malicious programs instead of the updates.

In general, malware is often disguised as or bundled with ordinary content, which is then proliferated via untrustworthy download sources (e.g., unofficial and free file-hosting sites, Peer-to-Peer sharing networks, and other third-party downloaders).

Spam campaigns are also commonly used to spread malware. This term defines a mass-scale operation during which deceptive/scam emails are sent by the thousand. The letters have virulent files attached to and/or linked inside them.

Infectious files can be in various formats, e.g., archives, executables, PDF and Microsoft Office documents, JavaScript, etc. When these files are executed, run, or otherwise opened - the infection chain (i.e., malware download/installation) is initiated.

How to avoid installation of malware?

It is recommended to only use official and verified download channels. Additionally, all programs must be activated and updated with tools/functions provided by legitimate developers, as ones obtained from third-party sources can contain malware.

To avoid infecting the device via spam mail, it is strongly advised against opening suspicious/irrelevant emails - especially any attachments or links found in them. It is paramount to have a reputable anti-virus/anti-spyware suite installed and kept up-to-date.

Furthermore, this software has to be used to perform regular system scans and remove detected/potential threats. If you believe that your computer is already infected, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Screenshot of CopperStealer's process on Windows Task Manager ("DeltaCopy Server Console" process name):

CopperStealer malware process on task manager (DeltaCopy Server Console - process name)

Screenshots of websites offering illegal activation tools ("cracks") and fake installers, which distribute CopperStealer:

CopperStealer malware proliferating website 1 CopperStealer malware proliferating website 2 CopperStealer malware proliferating website 3

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:
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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 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.

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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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