Threat Database Trojans Trojan.Agent.ACH

Trojan.Agent.ACH

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 26,815
Threat Level: 80 % (High)
Infected Computers: 2
First Seen: February 24, 2026
Last Seen: April 22, 2026
OS(es) Affected: Windows

The detection of Trojan.Agent.ACH on your system indicates a potential threat to your computer's security and integrity. This detection name suggests that the malware is a type of Trojan, which is a broad category of malicious software that can perform a variety of harmful actions. In this report, we will provide an overview of what Trojan.Agent.ACH is, how it operates, the symptoms of infection, and steps you can take to remove it from your system.

What Is Trojan.Agent.ACH?

Trojan.Agent.ACH is a type of malware that is designed to infiltrate and compromise a computer system without the user's knowledge or consent. The term "Trojan" refers to the fact that this type of malware often disguises itself as a legitimate program or file, allowing it to evade detection and gain access to the system. The specific characteristics and behaviors of Trojan.Agent.ACH are not well-defined, but it is likely that it is designed to perform malicious actions such as data theft, system compromise, or disruption of normal system operation.

How Trojan.Agent.ACH Operates

Malware like Trojan.Agent.ACH typically operates by exploiting vulnerabilities in software or using social engineering tactics to trick users into installing it. Once installed, the malware can communicate with its creators or other malicious servers to receive instructions or upload stolen data. It may also attempt to spread to other systems or install additional malware. The exact mechanisms used by Trojan.Agent.ACH are not known, but it is likely that it uses common techniques such as code injection, registry modification, or file system manipulation to achieve its goals.

Symptoms of Infection

The symptoms of a Trojan.Agent.ACH infection can vary depending on the specific actions it is designed to perform. Common symptoms of malware infection include slow system performance, unusual network activity, unexpected pop-ups or ads, and changes to system settings or files. You may also notice that your system is crashing or freezing frequently, or that your anti-virus software is detecting and blocking suspicious activity. If you suspect that your system is infected with Trojan.Agent.ACH, it is essential to take immediate action to remove it and prevent further damage.

How to Remove Trojan.Agent.ACH

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect and remove any malware.
  3. Uninstall any suspicious programs or applications that may be related to the Trojan.Agent.ACH 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 a follow-up scan with your anti-virus software to ensure that the malware has been completely removed.

Conclusion

The detection of Trojan.Agent.ACH on your system is a serious issue that requires immediate attention. By understanding what this malware is, how it operates, and the symptoms of infection, you can take the necessary steps to remove it and prevent further damage. Remember to always use reputable anti-virus software and to practice safe computing habits, such as avoiding suspicious downloads and links, to reduce the risk of malware infection. If you are unsure about how to remove Trojan.Agent.ACH or if you need additional assistance, consider seeking help from a qualified computer security professional.

Analysis Report

General information

Family Name: Trojan.Agent.ACH
Signature status: No Signature

Known Samples

MD5: 8146aa30eb490228563974204f563df8
SHA1: 5523005640fd3e6c8c8676858259770c969e459d
SHA256: 7C3AB6FDF45414692A80094CF88DF784EBFAF69993E33F2982ADBDD4457A8884
File Size: 74.75 KB, 74752 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have relocations information
  • File doesn't have resources
  • File doesn't have security information
  • File has exports table
  • File is 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
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  • 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
  • x64

Block Information

Total Blocks: 103
Potentially Malicious Blocks: 89
Whitelisted Blocks: 11
Unknown Blocks: 3

Visual Map

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

Similar Families

  • Agent.ACH

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
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  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN

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