Threat Database Trojans Trojan.MSIL.Krypt.ABTRA

Trojan.MSIL.Krypt.ABTRA

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 26
First Seen: August 14, 2025
Last Seen: March 26, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Krypt.ABTRA on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and it's essential to understand its nature and how to remove it effectively.

What Is Trojan.MSIL.Krypt.ABTRA?

Trojan.MSIL.Krypt.ABTRA is a type of Trojan horse malware that can infect your computer through various means, such as malicious downloads, infected software, or exploited vulnerabilities. The name "Trojan" refers to the fact that this malware disguises itself as a legitimate program or file, allowing it to bypass security measures and gain unauthorized access to your system.

How Trojan.MSIL.Krypt.ABTRA Operates

Once installed, Trojan.MSIL.Krypt.ABTRA can operate in the background, allowing attackers to remotely access and control your computer. This can lead to a range of malicious activities, including data theft, unauthorized software installation, and exploitation of system vulnerabilities. The malware may also communicate with its command and control servers to receive updates, instructions, or stolen data.

Trojan.MSIL.Krypt.ABTRA can use various techniques to evade detection, such as code obfuscation, anti-debugging, and rootkit functionality. This makes it challenging for traditional antivirus software to detect and remove the malware, emphasizing the need for specialized removal tools and techniques.

Symptoms of Infection

Infected systems may exhibit a range of symptoms, including slow performance, frequent crashes, and unusual network activity. You may also notice unfamiliar programs or icons on your desktop, or receive unexpected pop-ups and alerts. In some cases, the malware may not display any visible symptoms, making it difficult to detect without proper scanning and analysis tools.

  • Unexplained changes to system settings or configuration
  • Increased CPU usage or memory consumption
  • Unusual network traffic or connections to unknown servers
  • Appearance of suspicious files or folders

How to Remove Trojan.MSIL.Krypt.ABTRA

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for internet access.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malware components.
  3. Uninstall any suspicious programs or applications that may be related to the malware.
  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 computer and perform another full scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.MSIL.Krypt.ABTRA requires a combination of specialized tools, techniques, and caution. By following the steps outlined above and using reputable anti-malware software, you can effectively remove the malware and restore your system's security and integrity. It's essential to remain vigilant and proactive in maintaining your system's security, including keeping your operating system and software up-to-date, using strong passwords, and avoiding suspicious downloads and links.

Analysis Report

General information

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

Known Samples

MD5: 99b875dbc0d8a8aefa3bc69f3662b0c8
SHA1: ca323e97b5ed08a3211b8f85c337b5d729fc7976
SHA256: 77EE14672FE1AA2C78F0279BC3E5352E75C57F4AF8856AE65FCFD3B24ECBC0E9
File Size: 586.24 KB, 586240 bytes
MD5: f9f822963f4b2be81c5cbf840e32a130
SHA1: a75f5493ba503e57401faca89ee518f2751e4006
SHA256: 8851C8A17927376A75DA5CE9E384EA2B0C7F3A6926F9CD7DF75DF6DBE2092E2B
File Size: 700.93 KB, 700928 bytes
MD5: 9365a9db7180ddb5d888575fe5cef15c
SHA1: 1936ecec505707b594e495fac827751edb224a4c
SHA256: 71D7AA50B2871567A23FA50A5D7D62E460C361A6644E74579AC93A8ED8E92AA8
File Size: 586.24 KB, 586240 bytes
MD5: e36ae29791d3b4fd2ffe442b4bbddfe2
SHA1: ae8bcd96082b7afddf54516357653e3af0ca7ce7
SHA256: 602D5C38320B020A7608DD6BBB672D80284D3B34E1B799B284DF6ECB28DE93FD
File Size: 586.24 KB, 586240 bytes
MD5: 1cdbef961cb6aeb497083a2f80bb2e67
SHA1: 6259a95d12f081eebfb07c82b412279ea7676360
SHA256: 2E3726CFE4FAA95D2A007D102286AB4EC3DA9368E13AA5CF66E2AF314183CE24
File Size: 461.31 KB, 461312 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 relocations information
  • File doesn't have security information
  • File is .NET application
  • File is 32-bit executable
  • File is 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
Show More
  • 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 Version 1.0.0.0
Internal Name
  • Buddmvxej.exe
  • Hwqvxb.exe
  • Kiakqflpt.exe
  • Rrgjkzhpg.exe
  • Sixugincqc.exe
Original Filename
  • Buddmvxej.exe
  • Hwqvxb.exe
  • Kiakqflpt.exe
  • Rrgjkzhpg.exe
  • Sixugincqc.exe
Product Version 1.0.0.0

File Traits

  • .NET
  • GenKrypt
  • HighEntropy
  • x64
  • x86

Block Information

Total Blocks: 59
Potentially Malicious Blocks: 8
Whitelisted Blocks: 21
Unknown Blocks: 30

Visual Map

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

Similar Families

  • MSIL.Stealer.CCA

Files Modified

File Attributes
\device\namedpipe\pshost.134024963541239267.5996.defaultappdomain.powershell Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288
c:\users\user\appdata\local\temp\__psscriptpolicytest_1orllzdo.uqk.ps1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_5jrjsdt0.4m5.psm1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_brpkucas.iif.ps1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\__psscriptpolicytest_nlxtnc0w.dx0.psm1 Generic Write,Read Attributes
c:\users\user\appdata\local\temp\app_store.exe Generic Write,Read Attributes

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey

Windows API Usage

Category API
User Data Access
  • GetUserDefaultLocaleName
  • GetUserName
  • GetUserNameEx
  • GetUserObjectInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Other Suspicious
  • AdjustTokenPrivileges
Process Shell Execute
  • CreateProcess
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtCancelTimer2
  • ntdll.dll!NtCancelWaitCompletionPacket
  • ntdll.dll!NtClearEvent
Show More
  • ntdll.dll!NtClose
  • ntdll.dll!NtCompareSigningLevels
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFlushProcessWriteBuffers
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtGetCachedSigningLevel
  • ntdll.dll!NtGetContextThread
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetContextThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimer2
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtSuspendThread
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtUnsubscribeWnfStateChange
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • ntdll.dll!NtYieldExecution
  • UNKNOWN
  • win32u.dll!NtGdiBitBlt
  • win32u.dll!NtGdiCreateBitmap
  • win32u.dll!NtGdiCreateCompatibleDC

22 additional items are not displayed above.

Network Winsock2
  • WSAConnect
  • WSASocket
  • WSAStartup
Network Winsock
  • closesocket
  • getpeername
  • setsockopt

Shell Command Execution

"powershell.exe" -NoProfile -ExecutionPolicy Bypass -Enc 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
"powershell.exe" -NoProfile -ExecutionPolicy Bypass -Enc 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