How to remove Lumar Stealer

What is Lumar Stealer

Lumar Stealer is a lightweight stealer-type malware written in the C programming language. It is designed to steal information such as Internet cookies, stored passwords, and cryptocurrency wallets. Lumar was first noted being promoted on hacker forums in July of 2023. The malware infiltrates systems and starts gathering relevant device data such as the device name, CPU, RAM, and keyboard layout. It primarily targets information stored on browsers, extracting Internet cookies and login credentials (usernames, IDs, email addresses, passwords, passphrases, etc.). It also targets Telegram Messenger sessions and collects information related to cryptocurrency wallets. Lumar has grabber capabilities, meaning it can download files from victims’ desktops. Formats of interest include DOC, TXT, XLS, RDP, and JPG. If you suspect that your computer is infected with Lumar Stealer, it is strongly advised to use a dependable antivirus software to perform regular system scans and to remove detected threats and issues.

How Lumar Stealer infected your system

Lumar Stealer is offered for sale by its developers on hacker forums, so its distribution may vary based on the preferences/methodologies of the cybercriminals using it. Malware like Lumar Stealer can be proliferated using various methods. Some of these methods include malicious torrents, phishing, and social engineering techniques. For instance, cybercriminals may use cracked games and software as bait to trick users into installing malware. Another method of distribution is through spam emails. For example, cybercriminals behind a similar malware, Lumma Stealer, have used spam emails to target YouTubers. The spam letter contained a Dropbox link via which an archive file and a video file were downloaded. The archive file was disguised as a PDF document and, upon execution, downloaded a malicious program.

1. Download Lumar Stealer Removal Tool
2. Use Windows Malicious Software Removal Tool to remove Lumar Stealer
3. Use Autoruns to remove Lumar Stealer
4. Files, folders and registry keys of Lumar Stealer
5. Other aliases of Lumar Stealer
6. How to protect from threats, like Lumar Stealer

Remove Lumar Stealer manually

Manual removal of Lumar Stealer by inexperienced users may become a difficult task because it does not create entries in Add/Remove Programs under Control Panel, does not install browser extensions, and uses random file names. However, there are pre-installed instruments in the Windows system, that allow you to detect and remove malware without using third-party applications. One of them is Windows Malicious Software Removal Tool. It comes with Windows Update in Windows 11, 10, 8. 8.1. For older operating system you can download it here: 64-bit version | 32-bit version.

Remove Lumar Stealer using Windows Malicious Software Removal Tool

1. Type mrt in the search box near Start Menu.
2. Run mrt clicking on found item.
3. Click Next button.
4. Choose one of the scan modes Quick scan, Full scan, Customize scan (Full scan recommended).
5. Click Next button.
6. Click on View detailed results of the scan link to view the scan details.
7. Click Finish button.

Remove Lumar Stealer using Autoruns

Lumar Stealer often sets up to run at Windows startup as an Autorun entry or Scheduled task.

1. Download Autoruns using this link.
2. Extract the archive and run Autoruns.exe file.
3. In Options menu make sure there are checkboxes near Hide Empty Locations, Hide Microsoft Entries, and Hide Windows Entries.
4. Search for suspicious entries with weird names or running from locations like: C:\{username}\AppData\Roaming.
5. Right-click on suspicious entry and choose Delete. This will prevent the threat to run at startup.
6. Switch to Scheduled Tasks tab and do the same.
7. To remove files themselves, click on suspicious entries and choose Jump to Entry…. Remove files or registry keys found.

Remove files, folder and registry keys of Lumar Stealer

Lumar Stealer files and folders


{randomname}.exe


Lumar Stealer registry keys


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Aliases of Lumar Stealer

How to protect from threats, like Lumar Stealer, in future

Standard Windows protection or any decent third-party antivirus (Norton, Avast, Kaspersky) should be able to detect and remove Lumar Stealer. However, if you got infected with Lumar Stealer with existing and updated security software, you may consider changing it. To feel safe and protect your PC from Lumar Stealer on all levels (browser, e-mail attachments, Word or Excel scripts, file system) we recommend a leading provider of internet security solutions – BitDefender. Its solutions both for home and business users proved to be one of the most advanced and effective. Choose and get your BitDefender protection via the button below: