How to remove PUA:Win32/SBYinYing

What is PUA:Win32/SBYinYing

PUA:Win32/SBYinYing is a potentially unwanted application (PUA) that often accompanies cracked or pirated software, particularly games. This type of unwanted software usually displays intrusive ads and can redirect users to potentially harmful websites, posing risks akin to those of adware and browser hijackers. Notably identified by Microsoft Defender, PUA:Win32/SBYinYing is most commonly associated with a file named “EMP.dll,” found in repackaged games. Once installed, it gathers basic user information and performs defense evasion techniques typical of more malicious software, such as file obfuscation and data encryption. Additionally, it leverages legitimate Windows processes like rundll32.exe and WerFault.exe to execute its code and maintain persistence on the infected system. The software also exhibits significant network activity, making DNS requests that may indicate communication with command servers. While primarily functioning as adware, it can indirectly lead to more severe security issues by directing users to malicious websites, thereby increasing the risk of data theft or further infections.

How PUA:Win32/SBYinYing infected your system

PUA:Win32/SBYinYing typically infiltrates computers through pirated software, particularly cracked games available on torrent sites. Users often disable their antivirus software or add the game to an exclusion list to run these pirated copies, inadvertently allowing the PUA to bypass security defenses. The malware is commonly embedded in a file named “EMP.dll,” which is executed via legitimate system processes like rundll32.exe. Once active, PUA:Win32/SBYinYing displays excessive ads, gathers basic user information, and may redirect users to potentially harmful websites. It employs various techniques to evade detection, including file obfuscation, data encryption, and injecting itself into legitimate processes. To ensure persistent infection, the malware creates scheduled tasks that run each time the system starts, thus maintaining its foothold on the compromised computer.

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

Remove PUA:Win32/SBYinYing manually

Manual removal of PUA:Win32/SBYinYing 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 PUA:Win32/SBYinYing 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 PUA:Win32/SBYinYing using Autoruns

PUA:Win32/SBYinYing 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 PUA:Win32/SBYinYing

PUA:Win32/SBYinYing files and folders


{randomname}.exe


PUA:Win32/SBYinYing registry keys


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Aliases of PUA:Win32/SBYinYing

How to protect from threats, like PUA:Win32/SBYinYing, in future

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

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