PUP.MSIL.DllInject.AT

The detection of PUP.MSIL.DllInject.AT on your system indicates the presence of a potentially unwanted program (PUP) that may be causing harm to your computer. This type of threat is designed to infiltrate your system without your knowledge or consent, often through bundled software downloads or exploited vulnerabilities. It's essential to understand the nature of this threat and take immediate action to remove it and prevent further damage.

What Is PUP.MSIL.DllInject.AT?

PUP.MSIL.DllInject.AT is a type of malware that injects malicious code into legitimate system processes, allowing it to evade detection and persist on the infected system. This technique enables the malware to gain unauthorized access to sensitive information, manipulate system settings, and potentially install additional malware or unwanted software. The "PUP" designation indicates that this threat is not necessarily malicious in nature but can still cause significant problems for the infected system.

How PUP.MSIL.DllInject.AT Operates

Once installed, PUP.MSIL.DllInject.AT operates by injecting malicious code into system processes, which can lead to a range of unwanted consequences. This may include the installation of additional malware, the theft of sensitive information, or the manipulation of system settings to facilitate further malicious activity. The malware may also attempt to connect to remote servers to receive updates or transmit stolen data. Understanding how this threat operates is crucial in developing an effective removal strategy.

Symptoms of Infection

Systems infected with PUP.MSIL.DllInject.AT may exhibit a range of symptoms, including slow system performance, unexpected crashes, and unusual network activity. You may also notice the appearance of unwanted software or toolbars, or changes to your browser settings. In some cases, the malware may attempt to display fake alerts or warnings, prompting you to install additional software or pay for fake support services. If you suspect that your system is infected, it's essential to take immediate action to remove the threat.

How to Remove PUP.MSIL.DllInject.AT

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective 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 the malware.
  3. Uninstall any suspicious programs or software that may have been installed without your knowledge or consent.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your system and perform an additional scan to ensure that all remnants of the malware have been removed.

Conclusion

Removing PUP.MSIL.DllInject.AT from your system requires a combination of technical knowledge and the right tools. By following the steps outlined above and using a reputable anti-malware tool, you can effectively remove this threat and prevent further damage to your system. It's also essential to take steps to prevent future infections, including keeping your operating system and software up to date, using strong antivirus software, and being cautious when downloading software or clicking on links from unknown sources. By being proactive and taking the necessary precautions, you can help protect your system and sensitive information from the threats posed by PUP.MSIL.DllInject.AT and other types of malware.

Analysis Report

General information

Family Name: PUP.MSIL.DllInject.AT
Signature status: No Signature

Known Samples

MD5: 36362ecba1f40ed7daf5d1ec44f13a4a
SHA1: 28e7676727d6f71447354ff57a00d02cc222bbd1
SHA256: 1D018A484864868EE19607F215EED481573819A28E8B15F7F5FB94B733239B55
File Size: 1.29 MB, 1291776 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File is .NET application
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • 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)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
File Description Illusion
File Version 1.0.0.0
Internal Name Illusion.exe
Legal Copyright Copyright © 2025
Original Filename Illusion.exe
Product Name Illusion
Product Version 1.0.0.0

File Traits

  • .NET
  • HighEntropy
  • x86

Block Information

Total Blocks: 80
Potentially Malicious Blocks: 29
Whitelisted Blocks: 51
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.DllInject.AT

Windows API Usage

Category API
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation

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