Threat Database Trojans Trojan.MSIL.Krypt.CCI

Trojan.MSIL.Krypt.CCI

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 12,113
Threat Level: 80 % (High)
Infected Computers: 1,520
First Seen: June 18, 2021
Last Seen: July 6, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.CCI 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 system. It's crucial to approach this situation with caution and follow the recommended removal procedures to ensure the security and integrity of your data.

What Is Trojan.MSIL.Krypt.CCI?

Trojan.MSIL.Krypt.CCI is identified as a Trojan-type threat, which is a broad category of malware designed to deceive users by appearing as legitimate software. The name itself suggests it's written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic, object-oriented programming language used for software development on the .NET Framework. Trojans are known for their ability to create backdoors on the infected system, allowing unauthorized access and control by the attacker. They can also install additional malware, steal sensitive information, and disrupt system operation.

How Trojan.MSIL.Krypt.CCI Operates

Like other Trojans, Trojan.MSIL.Krypt.CCI is likely designed to operate stealthily, aiming to remain undetected by traditional security measures. It may exploit system vulnerabilities or use social engineering tactics to gain initial access. Once inside, it could start communicating with its command and control servers to receive instructions, which might include downloading and installing more malware, stealing personal data, or using the infected system for malicious activities such as spamming or DDoS attacks. The specific operations of Trojan.MSIL.Krypt.CCI can vary, but the common goal is to compromise the security and privacy of the infected system.

Symptoms of Infection

Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. However, common signs include unexpected changes in system behavior, such as unusual pop-ups, slow system performance, and unfamiliar programs or icons. You might also notice increased network activity without an apparent cause, or receive notifications from your security software indicating the detection of suspicious activity. In some cases, the system may become unstable, leading to frequent crashes or freezes.

How to Remove Trojan.MSIL.Krypt.CCI

  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 removal tools if necessary, while minimizing system processes.
  2. Perform a full scan of your system using a reputable anti-malware tool such as SpyHunter. Ensure your antivirus software is updated with the latest definitions to increase the chances of detecting and removing the malware.
  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 sure are not essential to your system's operation.
  4. Reset your browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the malware. Note that this will also remove any saved passwords and custom settings, so you may want to export your bookmarks and passwords before doing so.
  5. Reboot your system and perform another full scan to ensure the malware has been completely removed. Repeat the scanning process until no more threats are detected.

Conclusion

Removing Trojan.MSIL.Krypt.CCI requires a careful and systematic approach to ensure all components of the malware are eliminated from your system. It's essential to stay vigilant and keep your security software updated to protect against future threats. Regularly backing up your important data and being cautious when opening email attachments or downloading software from the internet can also help prevent malware infections. If you're unsure about any part of the removal process, consider seeking help from a professional to ensure your system is thoroughly cleaned and secured.

Analysis Report

General information

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

Known Samples

MD5: 30ab21b85a091cc5bdf859d6db28dac6
SHA1: 7a0dcb3b3012f5e7928d7b1779c498b18bf67e6b
SHA256: 0D83C628410771E9C37D16B83B3FCA649732B5D7FC756939AF9974A285C62F59
File Size: 1.01 MB, 1011712 bytes
MD5: e8272618f98ad567ee6cc4d275ccc29a
SHA1: 4c13c18bc2e988ee2491e0f038325bc26f292bdd
SHA256: 2A0959A32ED2846151774C51114CB1E3FC3B2287BC66182C26CF597959D08F92
File Size: 7.20 MB, 7203840 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 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)
Show More
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
Comments
  • 6=B555J<@@:9>JC8B5=:
  • A426B@9G@HD@A84>I
Company Name
  • 45=ACFHBF:IH<:<JJ
  • B>4@7;@7FJ>@833DCGG
File Description
  • ;AAI34<A8IAJ33:>>G84532I
  • <EE6=F66D7:J;G:=>D?F5B5
File Version
  • 25.22.7.16
  • 18.15.44.242
Internal Name
  • dfvgybuhnijmk.exe
  • withoutdelay.exe
Legal Copyright
  • Copyright © 1989 45=ACFHBF:IH<:<JJ. All rights reserved.
  • Copyright © 2000 B>4@7;@7FJ>@833DCGG. All rights reserved.
Original Filename
  • dfvgybuhnijmk.exe
  • withoutdelay.exe
Product Name
  • ;AAI34<A8IAJ33:>>G84532I
  • <EE6=F66D7:J;G:=>D?F5B5
Product Version
  • 25.22.7.16
  • 18.15.44.242

File Traits

  • .NET
  • HighEntropy
  • x86

Block Information

Total Blocks: 45
Potentially Malicious Blocks: 2
Whitelisted Blocks: 10
Unknown Blocks: 33

Visual Map

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

Registry Modifications

Key::Value Data API Name
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe 綈핕ǜ RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe �"���� RegNtPreCreateKey
HKLM\system\controlset001\services\eventlog\application\facilitybook pro::eventmessagefile C:\Windows\Microsoft.NET\Framework\v4.0.30319\EventLogMessages.dll RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 7m�8�1tX�jg �� �6 �v xy ����T������1��dc�%����3bBx�<��%��R �7!wz#��$kF%:�%`�&� &�-'�(�(X�(�)A)�`*J*9*�"+��-!R0P%1`1�1HO5,]9�V;�4=�>3�@V�A��B��F? RegNtPreCreateKey

Windows API Usage

Category API
User Data Access
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Other Suspicious
  • AdjustTokenPrivileges
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
  • WriteConsole
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
Show More
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • 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!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • UNKNOWN
Process Terminate
  • TerminateProcess
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext

Shell Command Execution

"cmd.exe" /c del /f /q "c:\users\user\downloads\7a0dcb3b3012f5e7928d7b1779c498b18bf67e6b_0001011712\:Zone.Identifier"
WriteConsole: The directory na
"cmd.exe" /c del /f /q "c:\users\user\downloads\4c13c18bc2e988ee2491e0f038325bc26f292bdd_0007203840\:Zone.Identifier"

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