Threat Database Trojans Trojan.MSIL.Krypt.GCB

Trojan.MSIL.Krypt.GCB

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 22,344
Threat Level: 80 % (High)
Infected Computers: 4
First Seen: October 12, 2021
Last Seen: April 22, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.GCB on your system indicates a potential security threat that requires immediate attention. This report provides an overview of the threat, its operating mechanisms, symptoms of infection, and a step-by-step guide on how to remove it from your system.

What Is Trojan.MSIL.Krypt.GCB?

Trojan.MSIL.Krypt.GCB is a type of malware that falls under the broader category of Trojan horses. Trojan horses are malicious programs that disguise themselves as legitimate software, allowing them to infiltrate systems without being detected by traditional security measures. The name Trojan.MSIL.Krypt.GCB suggests it is a Trojan-type threat, but without more specific information, it's difficult to determine its exact nature or the family it belongs to.

How Trojan.MSIL.Krypt.GCB Operates

Generally, Trojan horses like Trojan.MSIL.Krypt.GCB operate by exploiting vulnerabilities in system security to gain unauthorized access. Once inside, they can perform a variety of malicious activities, including data theft, installation of additional malware, or providing a backdoor for remote access by attackers. The specific operations of Trojan.MSIL.Krypt.GCB would depend on its design and the intentions of its creators, but common behaviors include modifying system settings, stealing personal data, and disrupting system performance.

Symptoms of Infection

Symptoms of a Trojan.MSIL.Krypt.GCB infection can vary widely but may include unusual system behavior such as slow performance, frequent crashes, or the appearance of unwanted programs or toolbars. You might also notice changes in your browser settings or the presence of pop-up advertisements. In some cases, the infection may not exhibit obvious symptoms, making it difficult to detect without the use of security software.

  • Unexplained changes in system settings or browser configurations
  • Appearance of unknown programs or files on your system
  • Increased generation of pop-ups or unwanted advertisements
  • System crashes or significant slowdowns

How to Remove Trojan.MSIL.Krypt.GCB

  1. Enter Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. To do this, restart your computer and press the key to access your boot menu (this key varies by manufacturer but is often F12, F2, or Del). Select the option to boot into Safe Mode with Networking.
  2. Perform a Full Scan with a Reputable Tool: Utilize a well-regarded anti-malware tool, such as SpyHunter, to scan your system for Trojan.MSIL.Krypt.GCB and other potential threats. Ensure your anti-malware software is updated before running the scan.
  3. Uninstall Suspicious Programs: Go through your installed programs and remove any that you do not recognize or that were installed around the time you suspect the infection occurred.
  4. Reset Your Browsers: If your browsers (Chrome, Firefox, Edge, etc.) have been affected, resetting them to their default settings can help remove any malicious changes made by the Trojan. This will remove all extensions, cookies, and other data, so proceed with caution.
  5. Reboot and Re-scan: After completing the above steps, restart your computer and perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.

Conclusion

Removing Trojan.MSIL.Krypt.GCB from your system requires careful and methodical steps to ensure all components of the malware are eliminated. 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 software, and being cautious when opening email attachments or downloading files from the internet. By following the removal guide and practicing good digital hygiene, you can protect your system and personal data from threats like Trojan.MSIL.Krypt.GCB.

Analysis Report

General information

Family Name: Trojan.MSIL.Krypt.GCB
Signature status: No Signature

Known Samples

MD5: 328a330e45f16612357c43b706833721
SHA1: 727bec51de8710f99421a6591a98adeb3e67f64c
SHA256: C427BDEBA8B80A8E14EE2DC1E3A0384763ABB2B5722D847172ACA39FE6AE6019
File Size: 20.99 KB, 20992 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 1.0.0.0
File Description Ator
File Version 1.0.0.0
Internal Name Ator.dll
Legal Copyright Copyright © 2025
Original Filename Ator.dll
Product Name Ator
Product Version 1.0.0.0

File Traits

  • .NET
  • dll
  • x86

Block Information

Total Blocks: 3
Potentially Malicious Blocks: 3
Whitelisted Blocks: 0
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Krypt.GCB

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
Show More
  • 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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