Threat Database Trojans Trojan.MSIL.Agent.HJH

Trojan.MSIL.Agent.HJH

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 2
First Seen: April 8, 2025
Last Seen: September 1, 2025
OS(es) Affected: Windows

The detection of Trojan.MSIL.Agent.HJH on your system indicates a potential security threat that requires immediate attention. This malware is categorized as a Trojan-type threat, which is known for its ability to disguise itself as legitimate software while performing malicious activities in the background. It's essential to understand the nature of this threat and take prompt action to remove it and prevent further damage.

What Is Trojan.MSIL.Agent.HJH?

Trojan.MSIL.Agent.HJH is a type of malware that can infect your computer through various means, such as malicious downloads, infected software, or exploited vulnerabilities. Once inside, it can perform a range of malicious activities, including data theft, system compromise, and unauthorized access to sensitive information. The "Trojan" classification suggests that this malware may use social engineering tactics or disguise itself as legitimate software to evade detection.

How Trojan.MSIL.Agent.HJH Operates

Trojan.MSIL.Agent.HJH operates by exploiting system vulnerabilities or using deceptive methods to gain unauthorized access to your computer. It may spread through infected files, malicious links, or compromised websites. Once installed, it can communicate with its command and control servers to receive instructions, transmit stolen data, or download additional malware. This threat can also modify system settings, create backdoors, or disable security software to maintain its presence and evade detection.

Symptoms of Infection

Identifying the symptoms of a Trojan.MSIL.Agent.HJH infection can be challenging, as it often runs silently in the background. However, you may notice unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs running in the background. Other potential symptoms include unexpected changes to system settings, unfamiliar icons or shortcuts, or suspicious network activity. If you suspect that your system is infected, it's crucial to take immediate action to prevent further damage.

How to Remove Trojan.MSIL.Agent.HJH

  1. Boot your computer 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 be related to the infection, as they may be malicious or compromised.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings.
  5. Reboot your computer and perform another full scan to ensure that the malware has been completely removed and that your system is clean.

Conclusion

Removing Trojan.MSIL.Agent.HJH from your system requires a combination of technical expertise and caution. By following the steps outlined above and using reputable security software, you can effectively remove this malware and prevent further damage. It's essential to remain vigilant and take proactive measures to protect your system from future threats, including keeping your operating system and software up-to-date, using strong antivirus software, and avoiding suspicious downloads or links. Remember that prevention is key to maintaining a secure and healthy computer system.

Analysis Report

General information

Family Name: Trojan.MSIL.Agent.HJH
Signature status: No Signature

Known Samples

MD5: fdf25ddfcffc24ca1e63ab7e0fc8c734
SHA1: c3f791d294ece4bc7bf1d9756dc206c9aea93a6c
File Size: 58.37 KB, 58368 bytes
MD5: 87a9ac4b94918e7cdc79e96c335a3a8f
SHA1: f94ddb1b54425c46b17752e1c4b2f3a5006c64fc
SHA256: 3CCC243990946A18D1E2BAC01A81F74639CA9F3DF7DECD68BB1C66139406A9BB
File Size: 57.86 KB, 57856 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 17.0.8.0
Comments OpenJDK Platform binary
Company Name Microsoft
File Description OpenJDK Platform binary
File Version 17.0.8.0
Internal Name OpenJDK Platform binary.exe
Legal Copyright Copyright © 2025
Original Filename OpenJDK Platform binary.exe
Product Name Sys
Product Version 17.0.8.0

File Traits

  • .NET
  • x86

Block Information

Total Blocks: 112
Potentially Malicious Blocks: 41
Whitelisted Blocks: 71
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Agent.HJH

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
Show More
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateTimer
  • ntdll.dll!NtDelayExecution
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFlushProcessWriteBuffers
  • 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!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetTimerEx
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtYieldExecution
  • UNKNOWN
User Data Access
  • GetComputerName
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserName
  • GetUserObjectInformation
Network Info Queried
  • GetNetworkParams
Anti Debug
  • IsDebuggerPresent

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