PUP.FastAgain PC Booster

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Threat Scorecard

Threat Level: 10 % (Normal)
Infected Computers: 4,099
First Seen: February 12, 2014
Last Seen: April 30, 2026
OS(es) Affected: Windows

The detection of PUP.FastAgain PC Booster on your system indicates the presence of a potentially unwanted program (PUP) that may be compromising your computer's performance and security. This type of malware is designed to deceive users into installing unnecessary software or paying for fake services, and it can be challenging to remove without proper guidance.

What Is PUP.FastAgain PC Booster?

PUP.FastAgain PC Booster is a type of potentially unwanted program that is typically installed on a user's computer without their full knowledge or consent. It may be bundled with other software or downloaded from the internet, and its primary purpose is to promote fake or misleading information about the computer's performance. This type of malware can lead to a range of problems, including slow system performance, annoying pop-ups, and potential security risks.

How PUP.FastAgain PC Booster Operates

PUP.FastAgain PC Booster operates by using deceptive tactics to convince users that their computer is infected with viruses or experiencing performance issues. It may display fake scan results, warning messages, or pop-ups that prompt the user to purchase a license or download additional software. In some cases, it may also collect user data, such as browsing history or personal information, without consent. This type of behavior is characteristic of PUPs, which are designed to generate revenue for their creators rather than providing any genuine benefits to the user.

Symptoms of Infection

The symptoms of a PUP.FastAgain PC Booster infection can vary, but common signs include slow system performance, frequent pop-ups or alerts, and unexpected changes to browser settings or homepage. Users may also notice that their computer is running slower than usual, or that certain programs are not functioning properly. In some cases, the malware may also cause system crashes or freezes, leading to data loss or corruption.

  • Slow system performance or freezes
  • Frequent pop-ups or alerts
  • Unexpected changes to browser settings or homepage
  • System crashes or data loss
  • Annoying ads or sponsored content

How to Remove PUP.FastAgain PC Booster

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading
  2. Run a full scan with a reputable anti-malware tool, such as SpyHunter, to detect and remove the malware
  3. Uninstall any suspicious programs or software that may be related to the malware
  4. Reset your browser settings to their default values, including Chrome, Firefox, and Edge
  5. Reboot your computer and run another scan to ensure that the malware has been completely removed

Conclusion

Removing PUP.FastAgain PC Booster from your system requires careful attention to detail and a thorough understanding of the malware's behavior. By following the steps outlined above and using reputable anti-malware tools, you can effectively remove the malware and restore your computer to its normal functioning state. It's essential to remain vigilant and cautious when downloading software or clicking on links from unknown sources, as these are common ways that PUPs can infect a system. By taking proactive steps to protect your computer and staying informed about the latest malware threats, you can minimize the risk of infection and keep your system running smoothly and securely.

File System Details

PUP.FastAgain PC Booster may create the following file(s):
# File Name MD5 Detections
1. Update3.exe e92a98e49d0f1d39ad94b8bea5fea634 1,390
2. UUS3.dll 07fbde519dd3a5d631b71bd52acf0ac5 1,082
3. FastAgain PC Booster.exe 06529ed8b310a3e96defdc87a1ef76c9 1,047
4. FastAgain-Installer-s2.exe 08fe8dd846d84b1953dbff75ee1cfe5c 49

Registry Details

PUP.FastAgain PC Booster may create the following registry entry or registry entries:
File name without path
FastAgain PC Booster.lnk
Software\Activeris\FastAgain PC Booster
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\FastAgain PC Booster
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\FastAgain PC Booster_DEFAULT
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\FastAgain PC Booster_UPDATES
SOFTWARE\Wow6432Node\Activeris\FastAgain PC Booster

Directories

PUP.FastAgain PC Booster may create the following directory or directories:

%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\FastAgain PC Booster
%APPDATA%\Activeris\FastAgain PC Booster
%PROGRAMFILES%\FastAgain PC Booster
%PROGRAMFILES(X86)%\FastAgain PC Booster