PUP.Bar.K

The detection of PUP.Bar.K on your system indicates the presence of a potentially unwanted program (PUP) that may be causing issues with your computer's performance and security. It is essential to understand the nature of this threat and take appropriate steps to remove it to prevent potential harm.

What Is PUP.Bar.K?

PUP.Bar.K is a type of potentially unwanted program that can be installed on a computer without the user's knowledge or consent. These programs can be bundled with other software, downloaded from the internet, or installed through exploit kits. PUPs can cause a range of problems, including displaying unwanted advertisements, collecting user data, and slowing down system performance.

How PUP.Bar.K Operates

PUP.Bar.K, like other PUPs, can operate in various ways to achieve its goals. It may display pop-up ads, banners, or other types of advertisements to generate revenue for its creators. It can also collect user data, such as browsing history, search queries, or other sensitive information, which can be used for targeted advertising or sold to third parties. Additionally, PUP.Bar.K may install other malicious programs or components, such as toolbars, browser extensions, or system utilities, which can further compromise system security.

Symptoms of Infection

If your system is infected with PUP.Bar.K, you may experience a range of symptoms, including unwanted advertisements, slow system performance, and unfamiliar programs or icons on your desktop. You may also notice that your browser homepage or search engine has been changed without your consent. Other symptoms can include frequent crashes, freezes, or error messages, which can indicate that the PUP is interfering with system operations.

  • Unwanted advertisements or pop-ups
  • Slow system performance or freezes
  • Unfamiliar programs or icons on the desktop
  • Changed browser homepage or search engine
  • Frequent crashes or error messages

How to Remove PUP.Bar.K

  1. Boot your computer in Safe Mode with Networking to prevent the PUP from loading and to allow for a clean removal process.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malicious components.
  3. Uninstall any suspicious programs or applications that you do not recognize or need.
  4. Reset your browser settings to their default values, including Chrome, Firefox, and Edge, to remove any malicious extensions or add-ons.
  5. Reboot your computer and perform another scan with your anti-malware tool to ensure that all components of PUP.Bar.K have been removed.

Conclusion

Removing PUP.Bar.K from your system is crucial to prevent potential harm and restore your computer's performance and security. By following the steps outlined above, you can effectively remove this potentially unwanted program and prevent future infections. It is also essential to practice safe computing habits, such as avoiding suspicious downloads, using reputable anti-malware tools, and keeping your operating system and software up-to-date, to minimize the risk of PUP infections.

Analysis Report

General information

Family Name: PUP.Bar.K
Signature status: No Signature

Known Samples

MD5: 36861caa452c5df3219f0b5ce34b8116
SHA1: 3daca969a2ca7da449a052e13bdaffb6e9eb8f2a
SHA256: 90D313AB2D804A7993D7EF77035F26AA056268CDB951CAF6D91063F260C4D1CD
File Size: 6.14 KB, 6144 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have security information
  • File has exports table
  • 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)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • dll
  • x86

Block Information

Total Blocks: 11
Potentially Malicious Blocks: 10
Whitelisted Blocks: 1
Unknown Blocks: 0

Visual Map

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

Similar Families

  • Bar.K

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtQueryAttributesFile
Show More
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWriteFile
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\3daca969a2ca7da449a052e13bdaffb6e9eb8f2a_0000006144.,LiQMAxHB

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