Threat Database Backdoors Backdoor.MSIL.Agent.PIA

Backdoor.MSIL.Agent.PIA

By CagedTech in Backdoors

Threat Scorecard

Popularity Rank: 26,658
Threat Level: 60 % (Medium)
Infected Computers: 1
First Seen: January 12, 2026
Last Seen: June 15, 2026
OS(es) Affected: Windows

The detection of Backdoor.MSIL.Agent.PIA on your system indicates a potential security threat that requires immediate attention. This backdoor threat can compromise the security and integrity of your computer, allowing unauthorized access and potentially leading to further malicious activities. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Backdoor.MSIL.Agent.PIA?

Backdoor.MSIL.Agent.PIA is a type of malware that operates as a backdoor, which means it can open a secret portal on your computer, allowing hackers to remotely access and control your system. This can lead to a range of malicious activities, including data theft, unauthorized software installation, and exploitation of system vulnerabilities. The fact that it is detected as Backdoor.MSIL.Agent.PIA suggests it is a significant threat that should not be underestimated.

How Backdoor.MSIL.Agent.PIA Operates

Backdoor threats like Backdoor.MSIL.Agent.PIA typically operate by exploiting system vulnerabilities or using social engineering tactics to gain initial access to a computer. Once inside, they can create a covert communication channel with their command and control servers, allowing hackers to issue commands and steal sensitive information. These threats can also spread through various means, including infected software downloads, phishing emails, or exploited vulnerabilities in network services.

Symptoms of Infection

The symptoms of a Backdoor.MSIL.Agent.PIA infection can be subtle and may not always be immediately apparent. However, common indicators of a backdoor infection include unusual network activity, slow system performance, and unexpected changes to system settings or files. In some cases, you may notice unfamiliar programs or icons on your desktop, or receive unexpected pop-ups or alerts. If you suspect that your system has been compromised, it is crucial to take action quickly to minimize potential damage.

How to Remove Backdoor.MSIL.Agent.PIA

  1. Enter Safe Mode with Networking to prevent the malware from interfering with the removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the malware.
  3. Uninstall any suspicious programs or applications that may be related to the infection.
  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 another full scan to ensure that all remnants of the malware have been removed.

Conclusion

Removing Backdoor.MSIL.Agent.PIA from your system requires a combination of technical knowledge and caution. By following the steps outlined above and maintaining good security practices, such as keeping your operating system and software up to date, using strong passwords, and being cautious when clicking on links or downloading attachments, you can significantly reduce the risk of future infections. Remember, the key to protecting your digital assets is vigilance and prompt action when a threat is detected.

Analysis Report

General information

Family Name: Backdoor.MSIL.Agent.PIA
Signature status: No Signature

Known Samples

MD5: e7ad8b8093f6c99c68c9a98e79350b6f
SHA1: ece4f1ffffc0b6239efa007f07b11368f1243948
SHA256: B73C4735556F8B43D6BED880A089A85823E27183792B19E08BD10F86EB9EB879
File Size: 92.67 KB, 92672 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 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)
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  • 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 version
File Version 1.0.0.0
Internal Name version.exe
Legal Copyright Copyright © 2025
Original Filename version.exe
Product Name version
Product Version 1.0.0.0

File Traits

  • .NET
  • RijndaelManaged
  • WriteProcessMemory
  • x86

Block Information

Total Blocks: 51
Potentially Malicious Blocks: 7
Whitelisted Blocks: 44
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Agent.FBK
  • MSIL.Agent.PIA
  • MSIL.Downloader.Agent.FQ
  • MSIL.Gamehack.BOWH
  • MSIL.Gamehack.GOW
Show More
  • MSIL.Njrat.J

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
Show More
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWriteFile
  • UNKNOWN
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Process Manipulation Evasion
  • ReadProcessMemory

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