Threat Database Trojans Trojan.MSIL.Agent.ASK

Trojan.MSIL.Agent.ASK

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 18,945
Threat Level: 80 % (High)
Infected Computers: 4
First Seen: June 14, 2023
Last Seen: June 8, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Agent.ASK on your system indicates a potential security threat that requires immediate attention. This detection name suggests a type of malicious software, but without more specific information, it's crucial to understand the general characteristics of such threats and how to mitigate them. In this report, we will guide you through what Trojan.MSIL.Agent.ASK might entail, its operational methods, symptoms of infection, removal procedures, and conclude with preventive measures.

What Is Trojan.MSIL.Agent.ASK?

Trojan.MSIL.Agent.ASK, as indicated by its name, falls under the category of Trojan horses, which are malicious programs that disguise themselves as legitimate software. The term "MSIL" refers to Microsoft Intermediate Language, suggesting that this malware is designed to operate on Windows systems by utilizing the .NET framework. The ".Agent.ASK" part of the name could imply that it acts as an agent for remote commands or has specific functionalities related to data exfiltration or system control. Understanding the nature of this threat is key to effectively removing and preventing future infections.

How Trojan.MSIL.Agent.ASK Operates

Trojan horses like Trojan.MSIL.Agent.ASK typically operate by deceiving users into installing them, often by masquerading as useful applications or piggybacking on legitimate software downloads. Once installed, they can open backdoors for remote access, steal sensitive information, disrupt system performance, or install additional malware. Their operation can be stealthy, making them difficult to detect without proper security software. They might also exploit system vulnerabilities to escalate privileges, ensuring a persistent presence on the infected system.

Symptoms of Infection

Symptoms of a Trojan.MSIL.Agent.ASK infection can vary widely but may include unusual system behavior such as unexpected crashes, slow performance, or the appearance of unwanted programs or toolbars in your web browser. You might also notice unfamiliar network activity, changes to system settings, or the presence of unfamiliar files and folders. Sometimes, the infection might not exhibit noticeable symptoms, making regular system checks and malware scans essential for early detection.

How to Remove Trojan.MSIL.Agent.ASK

  1. Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to use the internet to download necessary tools while preventing most malware from running.
  2. Perform a full scan with a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the Trojan.MSIL.Agent.ASK malware. Ensure your anti-malware software is updated to the latest version for the best detection and removal capabilities.
  3. Uninstall suspicious programs that you do not recognize or that were installed around the time the malware was detected. Be cautious and only remove programs you are certain are malicious or unnecessary.
  4. Reset your web browsers (Google Chrome, Mozilla Firefox, Microsoft Edge, etc.) to their default settings. This step can help remove any malicious extensions or settings changes made by the malware.
  5. After completing the above steps, reboot your system and perform another full scan with your anti-malware tool to ensure that all components of the malware have been successfully removed.

Conclusion

Removing Trojan.MSIL.Agent.ASK requires a combination of using the right tools, understanding how the malware operates, and taking preventive measures to avoid future infections. Regularly updating your operating system, applications, and security software, along with practicing safe browsing habits and being cautious with email attachments and downloads, are crucial steps in protecting your digital environment. Remember, vigilance and proactive security measures are key to maintaining a secure and healthy computer system.

Analysis Report

General information

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

Known Samples

MD5: 03c2af7db7a20efe0974a80fec6103c3
SHA1: 57a04775bf5a999dc95b1e5d59e87887c0f47e53
SHA256: 328B945757F89CB38514A8E64B99EB580F09CEF2F897E59F34917155B974D78C
File Size: 15.36 KB, 15360 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 console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • 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 0.0.0.0
File Version 0.0.0.0
Internal Name App_Web_bsh14b5r.dll
Original Filename App_Web_bsh14b5r.dll
Product Version 0.0.0.0

File Traits

  • .NET
  • dll
  • x86

Block Information

Total Blocks: 33
Potentially Malicious Blocks: 11
Whitelisted Blocks: 13
Unknown Blocks: 9

Visual Map

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

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
Show More
  • 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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