How to remove Trojan:Win32/LsassDump.A

What is Trojan:Win32/LsassDump.A

Trojan:Win32/LsassDump.A is a sophisticated form of malware designed to extract sensitive information from a Windows system by targeting the Local Security Authority Subsystem Service (LSASS) process. This malware specifically seeks memory dumps from LSASS, which can contain valuable user credentials, including passwords in both encrypted and unencrypted forms. Attackers often use this information to gain unauthorized access to systems, maintain persistence, or create shadow users. Upon execution, the malware performs rigorous checks to detect virtual environments and debuggers, ensuring it operates undetected. It then neutralizes security software and gathers comprehensive system data, which is subsequently transmitted to a command-and-control server. The presence of this malware is typically flagged by heuristic detections like those from Microsoft Defender, which identify suspicious behavior rather than specific files. Effective removal usually requires advanced anti-malware tools capable of thoroughly scanning and cleaning the infected system.

How Trojan:Win32/LsassDump.A infected your system

Trojan:Win32/LsassDump.A primarily infiltrates computers through phishing emails, malicious downloads, and exploit kits targeting vulnerabilities in outdated software. Once inside, it immediately performs a series of checks to detect virtualized environments, sandboxes, or debuggers, ensuring it can operate without interference. The malware then leverages legitimate Windows processes such as WerFault.exe to silently terminate the lsass.exe process and generate a memory dump containing valuable user credentials. Subsequently, it neutralizes security software and downloads additional payloads, often from compromised websites, to establish long-term persistence. Finally, the collected data is exfiltrated to a Command and Control (C2) server, enabling attackers to gain unauthorized access and control over the infected system.

1. Download Trojan:Win32/LsassDump.A Removal Tool
2. Use Windows Malicious Software Removal Tool to remove Trojan:Win32/LsassDump.A
3. Use Autoruns to remove Trojan:Win32/LsassDump.A
4. Files, folders and registry keys of Trojan:Win32/LsassDump.A
5. Other aliases of Trojan:Win32/LsassDump.A
6. How to protect from threats, like Trojan:Win32/LsassDump.A

Remove Trojan:Win32/LsassDump.A manually

Manual removal of Trojan:Win32/LsassDump.A 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 Trojan:Win32/LsassDump.A 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 Trojan:Win32/LsassDump.A using Autoruns

Trojan:Win32/LsassDump.A 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 Trojan:Win32/LsassDump.A

Trojan:Win32/LsassDump.A files and folders


{randomname}.exe


Trojan:Win32/LsassDump.A registry keys


no information


Aliases of Trojan:Win32/LsassDump.A

How to protect from threats, like Trojan:Win32/LsassDump.A, in future

Standard Windows protection or any decent third-party antivirus (Norton, Avast, Kaspersky) should be able to detect and remove Trojan:Win32/LsassDump.A. However, if you got infected with Trojan:Win32/LsassDump.A with existing and updated security software, you may consider changing it. To feel safe and protect your PC from Trojan:Win32/LsassDump.A 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:

Download BitDefender