PUP.HFS.A
The detection of PUP.HFS.A on your system indicates the presence of a potentially unwanted program (PUP) that may be compromising your computer's security and performance. It's essential to understand the nature of this threat and take immediate action to remove it and prevent future infections.
Table of Contents
What Is PUP.HFS.A?
PUP.HFS.A is a type of malware that is classified as a potentially unwanted program. This category of threats includes software that may not be malicious in the classical sense but can still cause significant issues with your computer's functionality and security. PUPs often find their way onto systems through bundled downloads, where they are included alongside legitimate software without the user's full knowledge or consent.
How PUP.HFS.A Operates
Once installed, PUP.HFS.A can operate in various ways, depending on its design and the intentions of its creators. Common behaviors of PUPs include displaying unwanted advertisements, collecting user data without consent, altering browser settings, and slowing down system performance. They may also install additional software or create vulnerabilities that can be exploited by more severe malware. Understanding how PUP.HFS.A operates is crucial for effective removal and prevention of future infections.
Symptoms of Infection
The symptoms of a PUP.HFS.A infection can vary but often include an increase in unwanted pop-ups or advertisements, changes to your browser's homepage or search engine, the appearance of unknown or suspicious programs in your system tray or program list, and a general decline in system performance. If you've noticed any of these symptoms, it's likely that your system is infected with PUP.HFS.A or another type of malware.
- Unwanted advertisements or pop-ups
- Changes to browser settings or the appearance of unknown toolbars
- Suspicious programs or system tray icons
- Slow system performance or frequent crashes
How to Remove PUP.HFS.A
Removing PUP.HFS.A requires a systematic approach to ensure that all components of the malware are eliminated from your system. Here's a step-by-step guide to help you remove PUP.HFS.A:
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to give you access to the internet for downloading removal tools.
- Download and install a reputable anti-malware tool, such as SpyHunter, and perform a full scan of your system to detect and remove PUP.HFS.A and any other malware.
- Uninstall any suspicious programs that you don't recognize or that were installed around the time you noticed the infection symptoms.
- Reset your browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any changes made by the malware.
- Reboot your computer and perform another scan with your anti-malware tool to ensure that all threats have been removed.
Conclusion
The removal of PUP.HFS.A is crucial for restoring your system's security and performance. By following the steps outlined above and maintaining good security practices, such as regularly updating your software, using strong antivirus protection, and being cautious with downloads and email attachments, you can protect your system from future infections. Remember, prevention is key, but swift action in case of an infection can significantly mitigate potential damage.
Analysis Report
General information
| Family Name: | PUP.HFS.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
632b57aacd76aeb204157768bf416e7d
SHA1:
5c7ba5b814f5a306b9c16d58edc066e7d28361f4
SHA256:
2892E5C6B43A43C4C3121DD182634556EE5AFB3F7A7CC91C87BFBB552ADC9ED7
File Size:
1.87 MB, 1865216 bytes
|
|
MD5:
546bada83ce1ddac8f42ca4a9b40b9e9
SHA1:
dfc61ce42a47b8b153d8cb23e595ff713b624fe8
SHA256:
8FEF602A0FC902F69C17F0E464826C9E4FB447BA0E726A5AE8116CF02569EE81
File Size:
862.13 KB, 862127 bytes
|
|
MD5:
0257b2bb6dc26335efe3edcb957b89bf
SHA1:
b7b839a91496acb3f9c1e8016baedc24d7594047
SHA256:
3280B59EEF8D7B198E69CAFB1451E0B948F661206189970AB77077B006D016DE
File Size:
2.21 MB, 2213376 bytes
|
Windows Portable Executable Attributes
- 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 has TLS information
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
Show More
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
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
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 | rejetto |
| File Version | 2.3.0.0 |
| Internal Name | HFS |
| Legal Copyright | Copyright (C) 2002-2010 Massimo Melina (www.rejetto.com) |
| Original Filename | hfs.exe |
| Product Name | Http File Server |
| Product Version | 2.3 |
File Traits
- 2+ executable sections
- x86
Block Information
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: | 8,692 |
|---|---|
| Potentially Malicious Blocks: | 1,227 |
| Whitelisted Blocks: | 7,465 |
| Unknown Blocks: | 0 |
Visual Map
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Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Similar Families
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.- HFS.A
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\user\appdata\local\temp\2k10\http-fs | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\2k10\http-fs\hfs.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\2k10\http-fs\hfs.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\2k10\http-fs\test.tmp | Synchronize,Write Data |
| c:\users\user\appdata\local\temp\2k10\http-fs\test.tmp_deleted_ | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\2k10\http-fs\test.tmp~1275404038.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\test.tmp | Synchronize,Write Data |
| c:\users\user\downloads\test.tmp~50883714.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\test.tmp~873692556.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | �� xy �ރ ��^ ��z eeP Vs} kP~ ��1 > �� e e�� � ��1 �� f e�� i s e�� r � � s e�� u e�� v e�� { e�� | RegNtPreCreateKey |
Windows API Usage
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 |
|---|---|
| User Data Access |
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| Keyboard Access |
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| Network Winsock2 |
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| Network Winsock |
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| Anti Debug |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
(NULL) hfs.exe
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