PUP.Loader.B

The detection of PUP.Loader.B on your system indicates the presence of a potentially unwanted program (PUP) that may compromise your computer's security and performance. It is essential to understand the nature of this threat and take immediate action to remove it and prevent future infections.

What Is PUP.Loader.B?

PUP.Loader.B is a type of potentially unwanted program that can be installed on your computer without your knowledge or consent. It may be bundled with other software or downloaded from untrusted sources. PUPs like PUP.Loader.B are often designed to display unwanted advertisements, collect user data, or install additional malicious software.

How PUP.Loader.B Operates

PUP.Loader.B operates by exploiting vulnerabilities in your system or using social engineering tactics to trick you into installing it. Once installed, it can run in the background, consuming system resources and potentially causing performance issues. It may also communicate with its developers or other malicious servers to receive updates or instructions.

PUPs like PUP.Loader.B can be challenging to detect, as they often disguise themselves as legitimate programs or system files. However, they can cause significant problems, including slowing down your computer, displaying unwanted ads, and potentially leading to more severe malware infections.

Symptoms of Infection

If your system is infected with PUP.Loader.B, you may notice several symptoms, including:

• Unwanted advertisements or pop-ups appearing on your screen
• Slow system performance or crashes
• Unexplained changes to your browser settings or homepage
• Appearance of unfamiliar programs or icons on your desktop
• Increased data usage or unusual network activity

How to Remove PUP.Loader.B

To remove PUP.Loader.B from your system, follow these steps:

1. Boot your computer in Safe Mode with Networking to prevent the malware from loading
2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malicious files or programs
3. Uninstall any suspicious programs or applications that you do not recognize or need
4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any unwanted extensions or add-ons
5. Reboot your computer and run another scan with your anti-malware tool to ensure that the threat has been fully removed

Conclusion

Removing PUP.Loader.B from your system requires careful attention to detail and a thorough cleaning process. By following the steps outlined above, you can help ensure that your computer is free from this potentially unwanted program and prevent future infections. It is essential to remain vigilant and take proactive measures to protect your system, including keeping your operating system and software up to date, using reputable anti-malware tools, and being cautious when downloading software or clicking on links from unknown sources.

Analysis Report

General information

Family Name:	PUP.Loader.B
Packers:	UPack(Generic)
Signature status:	No Signature

Known Samples

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Known Samples

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

MD5: 15914099c865023c5d7c768318e80970 SHA1: 6141d52ee2716e3cb8014c4ef967f6f687a42082 SHA256: 287786D5AD615784F4679FED4A362B86A5EA8C9295601A1090F8606656A35599 File Size: 131.58 KB, 131584 bytes

MD5: ab72794c59255dc522109f67c1808751 SHA1: f7aa499740d04a3e0c8e2e8952a33ca21f0fcae7 SHA256: 603A3361EFE00EF866D3DC9FA9AAB24A260668AAB464282F1D0809F249B2721C File Size: 28.78 KB, 28776 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 doesn't have security information
• File has been packed
• 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)

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• IMAGE_FILE_DLL is not set inside PE header (Executable)
• 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.

File Traits

• 2+ executable sections
• HighEntropy
• No Version Info
• packed
• UPack (Dwing)
• UPack (Generic)
• WriteProcessMemory
• x86

Block Information

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Block Information

During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.

Total Blocks:	26
Potentially Malicious Blocks:	21
Whitelisted Blocks:	3
Unknown Blocks:	2

Visual Map

x x x x x x x x x x x x x x x x 0 x x ? x ? x 0 0 x

0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

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Similar Families

This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.

• Loader.B

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
Anti Debug	IsDebuggerPresent
User Data Access	GetUserObjectInformation
Keyboard Access	GetKeyState