PUP.RustRegion.A

The detection of PUP.RustRegion.A 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 any potential harm.

What Is PUP.RustRegion.A?

PUP.RustRegion.A 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 exploits. PUPs can cause a range of problems, including displaying unwanted advertisements, collecting user data, and slowing down system performance.

How PUP.RustRegion.A Operates

PUP.RustRegion.A, like other PUPs, can operate in various ways to achieve its goals. It may display unwanted advertisements, such as pop-ups, banners, or sponsored content, to generate revenue for its creators. Additionally, it may collect user data, including browsing history, search queries, and other sensitive information, to sell to third-party companies or use for targeted advertising. In some cases, PUPs can also install additional malware or unwanted programs on the infected system.

Symptoms of Infection

The symptoms of a PUP.RustRegion.A infection can vary, but common signs include unwanted advertisements, slow system performance, and suspicious program installations. You may also notice that your browser homepage or search engine has been changed without your consent. Furthermore, you may experience frequent crashes, freezes, or error messages, indicating that the PUP is interfering with your system's normal operation.

  • Unwanted advertisements, such as pop-ups or banners
  • Slow system performance or sluggish browser response
  • Suspicious program installations or unfamiliar icons on the desktop
  • Changed browser settings, such as homepage or search engine
  • Frequent crashes, freezes, or error messages

How to Remove PUP.RustRegion.A

  1. Boot your computer in Safe Mode with Networking to prevent the PUP from loading and to allow for a clean removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of PUP.RustRegion.A.
  3. Uninstall any suspicious programs or applications that may be related to the PUP, using the Add/Remove Programs feature in the Control Panel.
  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 perform another full scan to ensure that the PUP has been completely removed.

Conclusion

Removing PUP.RustRegion.A from your system is crucial to prevent any potential harm and restore your computer's performance and security. By following the steps outlined above, you can effectively remove this unwanted program and protect your system from similar threats in the future. It is essential to remain vigilant and take proactive measures to prevent PUPs and other malware from infecting your system, such as 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.RustRegion.A
Signature status: No Signature

Known Samples

MD5: 581b4665deb007d05ed0a24369f25297
SHA1: 4c68446fbc267e92d65c84363bb63a5591784aa1
SHA256: 581F0F8CBDE5DFA78D1B40B5D55F280F3CF7D5338E6393464E2ED170E307C4B0
File Size: 1.62 MB, 1615360 bytes
MD5: 32b7fa011917c2a9d76ccfeca67324a7
SHA1: eabda0c1dac6be7bf859d767568288116b82ded0
SHA256: B99426893AB06D22D516819D938734A499614A7165AD32309A7997714F89B9FF
File Size: 3.31 MB, 3309568 bytes
MD5: a05a5c3e0cc6b362ca7b8553b3aaae59
SHA1: e1b74bfeb3c1150858061e43f73eed182cc39728
SHA256: 9D64FD02E49996B0CC6505508E0C73B707E90AAC973BAA7022629A1672D9D0E4
File Size: 6.92 MB, 6916608 bytes
MD5: 47599968c56875edd3bcb29fd93cd8a6
SHA1: 9d216588de07c9c559f21570863a7ba662cd35b9
SHA256: B8F3AE181DCDA444DA6BFE8248736EA3D65886D879C6BE9C35917CDB4F25EEAD
File Size: 5.09 MB, 5087232 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have resources
  • File doesn't have security information
  • File has exports table
  • File has TLS 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
Show More
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
File Description cleo_redux
File Version
  • 1.0.1
  • 0.8.2
Legal Copyright
  • Copyright © 2021 Seemann
  • Copyright © 2021-2022 Seemann
Original Filename cleo_redux.asi
Product Name cleo_redux
Product Version
  • 1.0.1
  • 0.8.2

File Traits

  • CryptUnprotectData
  • dll
  • HighEntropy
  • x86

Block Information

Total Blocks: 11,589
Potentially Malicious Blocks: 612
Whitelisted Blocks: 6,713
Unknown Blocks: 4,264

Visual Map

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... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Files Modified

File Attributes
c:\windows\syswow64\cleo\.config\cleo.ini Generic Write,Read Attributes
c:\windows\syswow64\cleo\.config\enums.js Generic Write,Read Attributes
c:\windows\syswow64\cleo\.config\u.cache Generic Write,Read Attributes
c:\windows\syswow64\cleo\.config\unknown.d.ts Generic Write,Read Attributes
c:\windows\syswow64\cleo\.config\unknown_x86.enums.js Generic Write,Read Attributes
c:\windows\syswow64\cleo\.config\unknown_x86.json Generic Write,Read Attributes
c:\windows\syswow64\cleo_redux.log Generic Write,Read Attributes

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!NtProtectVirtualMemory
Show More
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • 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
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtUserGetKeyboardLayout
  • win32u.dll!NtUserGetThreadState
Process Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation
Process Manipulation Evasion
  • NtUnmapViewOfSection

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\4c68446fbc267e92d65c84363bb63a5591784aa1_0001615360.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\eabda0c1dac6be7bf859d767568288116b82ded0_0003309568.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\e1b74bfeb3c1150858061e43f73eed182cc39728_0006916608.,LiQMAxHB
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\9d216588de07c9c559f21570863a7ba662cd35b9_0005087232.,LiQMAxHB

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