PUP.OSMonitor

The detection of PUP.OSMonitor indicates that your system has been compromised by a potentially unwanted program (PUP). This type of software is not necessarily malicious but can still cause significant disruptions to your computer's performance and security. It is essential to understand the nature of PUP.OSMonitor and take appropriate steps to remove it from your system to prevent potential harm.

What Is PUP.OSMonitor?

PUP.OSMonitor is a type of potentially unwanted program that may have been installed on your system without your knowledge or consent. PUPs are often bundled with other software or downloaded from untrusted sources, and they can exhibit a range of behaviors, from displaying unwanted advertisements to monitoring your system's activity. While PUP.OSMonitor is not a virus or Trojan, it can still pose a risk to your system's security and stability.

How PUP.OSMonitor Operates

PUP.OSMonitor operates by installing itself on your system and then running in the background, often without your knowledge or consent. It may monitor your system's activity, collect data on your browsing habits, or display unwanted advertisements. In some cases, PUP.OSMonitor may also install additional software or modify your system's settings to facilitate its operation. Understanding how PUP.OSMonitor operates is crucial to removing it effectively and preventing future infections.

Symptoms of Infection

The symptoms of a PUP.OSMonitor infection can vary, but common indicators include slower system performance, unwanted advertisements or pop-ups, and unexpected changes to your system's settings. You may also notice that your browser's homepage or search engine has been modified, or that new toolbars or extensions have been installed. If you suspect that your system has been infected with PUP.OSMonitor, it is essential to take immediate action to remove it and prevent further damage.

• Unwanted advertisements or pop-ups
• Slow system performance
• Unexpected changes to system settings
• Modified browser settings
• New toolbars or extensions

How to Remove PUP.OSMonitor

1. Boot your system in Safe Mode with Networking to prevent PUP.OSMonitor from running and to allow for a more effective removal process.
2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any associated files or registry entries.
3. Uninstall any suspicious programs that may be related to PUP.OSMonitor, taking care to follow the recommended uninstallation procedures.
4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any modifications made by PUP.OSMonitor.
5. Reboot your system and perform a follow-up scan to ensure that PUP.OSMonitor has been completely removed.

Conclusion

Removing PUP.OSMonitor from your system requires a combination of technical knowledge and caution. By following the steps outlined above and using reputable anti-malware tools, you can effectively remove PUP.OSMonitor and prevent future infections. It is essential to remain vigilant and to take proactive steps to protect your system from potentially unwanted programs and other types of malware. By staying informed and taking the necessary precautions, you can help to ensure the security and stability of your computer and protect your personal data from potential threats.

Analysis Report

General information

Family Name:	PUP.OSMonitor
Signature status:	Root Not Trusted

Known Samples

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Known Samples

This section lists other file samples believed to be associated with this family.

MD5: bed21863e6975cddd29013f572a7da88 SHA1: 192bee7121cad2dbb115a6e67c18be2e3a67b8fa SHA256: 9AE2D9D5174B7FB4C7342BFF22E9813136BC52BCC6D0047ECA6CF2B7865C4846 File Size: 932.62 KB, 932616 bytes

Windows Portable Executable Attributes

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Windows Portable Executable Attributes

This section lists file attributes found within family samples. These attributes are extracted from the files’ Windows PE (Portable Executable) specification and various system flags. Portable Executable Attributes give malware researchers insight into a file’s functionality, executable details, platform and runtime environment.

• File doesn't have "Rich" header
• File doesn't have debug information
• File doesn't have exports table
• File doesn't have relocations information
• File is 32-bit executable
• File is either console or GUI application
• File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
• File is Native application (NOT .NET application)
• File is not packed
• IMAGE_FILE_DLL is not set inside PE header (Executable)

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• IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

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File Icons

This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.

Windows PE Version Information

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Windows PE Version Information

This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.

Name	Value
Company Name	Microsoft
File Version	10.02.0041
Internal Name	WorkWinLm
Legal Trademarks	Client
Original Filename	WorkWinLm.exe
Product Name	Client
Product Version	10.02.0041

Digital Signatures

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Digital Signatures

This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.

Signer	Root	Status
Nanjing Wangya Computer Co.,Ltd.	thawte Primary Root CA	Root Not Trusted

Windows API Usage

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Windows API Usage

This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.

Category	API
Other Suspicious	SetWindowsHookEx