Threat Database Trojans Trojan.MSIL.Agent.KS

Trojan.MSIL.Agent.KS

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 107
First Seen: February 5, 2024
Last Seen: February 25, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Agent.KS on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operational mechanisms, symptoms of infection, and most importantly, steps to remove it from your computer.

What Is Trojan.MSIL.Agent.KS?

Trojan.MSIL.Agent.KS is identified as a Trojan-type threat. Trojans are malicious programs that deceive users into installing them by disguising themselves as legitimate software. Once installed, they can cause significant damage, including data theft, system compromise, and the installation of additional malware. The name suggests it is written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic intermediate representation of the Common Intermediate Language (CIL). This allows the malware to potentially run on any system that supports .NET framework, making it versatile and dangerous.

How Trojan.MSIL.Agent.KS Operates

The operational mechanisms of Trojan.MSIL.Agent.KS, like many Trojans, likely involve exploiting system vulnerabilities or social engineering tactics to gain unauthorized access to a computer system. Once inside, it can create backdoors for remote access, steal sensitive information, disrupt system performance, or install other types of malware. The specific actions of Trojan.MSIL.Agent.KS can vary, but its primary goal is to compromise system security for malicious purposes.

Symptoms of Infection

Symptoms of a Trojan infection can be subtle and may not always be immediately noticeable. Common indicators include unexpected changes to system settings, unusual network activity, slow system performance, and the appearance of unwanted programs or toolbars in your web browser. Sometimes, the presence of a Trojan might only be discovered during a routine scan with antivirus software or when the malware engages in overtly malicious activity that draws attention.

How to Remove Trojan.MSIL.Agent.KS

  1. Boot into Safe Mode with Networking: This will help prevent the malware from loading and give you a cleaner environment to work in. To do this, restart your computer, and as it boots up, press the F8 key repeatedly until you see the Advanced Boot Options menu. Use the arrow keys to select Safe Mode with Networking and press Enter.
  2. Perform a Full Scan with a Reputable Tool: Use a trusted antivirus or anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure your antivirus software is updated with the latest definitions before running the scan.
  3. Uninstall Suspicious Programs: Go through your installed programs and remove any that you don't recognize or that were installed around the time you suspect the infection occurred.
  4. Reset Your Web Browsers: Resetting your web browsers (such as Chrome, Firefox, Edge) to their default settings can help remove any malicious extensions or settings changes made by the Trojan.
  5. Reboot and Re-scan: After completing the above steps, restart your computer in normal mode and perform another scan with your antivirus software to ensure that the threat has been fully removed.

Conclusion

Removing Trojan.MSIL.Agent.KS requires careful and thorough action to ensure that all components of the malware are eliminated from your system. It's also crucial to take preventive measures to avoid future infections, such as keeping your operating system and software up to date, using strong antivirus protection, and being cautious when opening email attachments or downloading software from the internet. By following the steps outlined in this report and maintaining good computer hygiene, you can help protect your system against Trojan.MSIL.Agent.KS and other malware threats.

Analysis Report

General information

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

Known Samples

MD5: 1825a9ece42b3a38bce2bf17f40e05c2
SHA1: 81e3d8abdc3352b7899188c61b4d113f86bf746f
SHA256: 22EC63CB694CB33ED5E47D687F45AF519CBB935EEFE9E105F8A065C34A0BEA5D
File Size: 14.85 KB, 14848 bytes
MD5: 5776edefe429be49d0aba5803e1ebe1f
SHA1: 0ec5290753729cdcdebb28e4d65d9fe239311d28
SHA256: B319CCD22A32A6B16237FC949AE0C8E80EA1C44303804CA0B9FF7D105881BE93
File Size: 15.87 KB, 15872 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 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)
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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
  • ActiveWindows
  • Maps
File Version 1.0.0.0
Internal Name
  • ActiveWindows.dll
  • Maps.dll
Legal Copyright Copyright © 2022
Original Filename
  • ActiveWindows.dll
  • Maps.dll
Product Name
  • ActiveWindows
  • Maps
Product Version 1.0.0.0

File Traits

  • .NET
  • dll
  • NewLateBinding
  • RijndaelManaged
  • x86

Block Information

Total Blocks: 35
Potentially Malicious Blocks: 11
Whitelisted Blocks: 21
Unknown Blocks: 3

Visual Map

0 0 0 0 0 0 0 0 0 0 0 x x x x 0 x x ? x ? x ? x 0 0 x x 0 0 0 0 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!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
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  • ntdll.dll!NtMapViewOfSection
  • 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!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN

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