Threat Database Stealers Trojan.MSIL.Stealer.O

Trojan.MSIL.Stealer.O

By CagedTech in Stealers, Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 157
First Seen: January 23, 2022
Last Seen: December 16, 2025
OS(es) Affected: Windows

The detection of Trojan.MSIL.Stealer.O on your system indicates a potential security threat that requires immediate attention. This Trojan-type threat is designed to compromise your system's security and steal sensitive information. It is essential to understand the nature of this threat and take prompt action to remove it and prevent further damage.

What Is Trojan.MSIL.Stealer.O?

Trojan.MSIL.Stealer.O is a type of malware that infiltrates your system by disguising itself as a legitimate program or file. Once inside, it can cause significant harm by stealing sensitive information, such as login credentials, credit card numbers, and personal data. The name "Trojan.MSIL.Stealer.O" suggests that it is a Trojan-type threat, which is a broad category of malware that uses deception to gain access to a system.

How Trojan.MSIL.Stealer.O Operates

Trojan.MSIL.Stealer.O operates by exploiting vulnerabilities in your system's security or by tricking you into installing it. It can spread through various means, such as infected software downloads, phishing emails, or compromised websites. Once installed, it can communicate with its command and control servers to receive instructions and transmit stolen data. This malware can also install additional malicious components, such as keyloggers or ransomware, to further compromise your system.

Symptoms of Infection

The symptoms of a Trojan.MSIL.Stealer.O infection can be subtle, but they may include unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs running in the background. You may also notice suspicious network activity, such as unexpected data transfers or unfamiliar connections. Additionally, you may receive alerts from your security software or notice that your personal data is being stolen or misused.

How to Remove Trojan.MSIL.Stealer.O

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect and remove all instances of the malware.
  3. Uninstall any suspicious programs or applications that may be related to the malware.
  4. Reset your web browsers, such as Chrome, Firefox, or Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your system and perform another full scan with your anti-malware tool to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.MSIL.Stealer.O from your system requires careful attention to detail and a comprehensive approach. By following the steps outlined above, you can help ensure that your system is free from this malware and that your personal data is protected. It is also essential to maintain good security practices, such as keeping your operating system and software up to date, using strong passwords, and being cautious when downloading or installing software from the internet. By taking these precautions, you can reduce the risk of future infections and protect your digital security.

Analysis Report

General information

Family Name: Trojan.MSIL.Stealer.O
Signature status: No Signature

Known Samples

MD5: e21042c4111b227612f55038ad5ae04a
SHA1: 28eac8e9fa940e15e694fa7d1db52fd518e24d39
SHA256: 739BFD592C18B4D7BCC351593BE45E7653F64C2573AB681DA36B9CAAA78B83DC
File Size: 929.28 KB, 929280 bytes
MD5: e1c64fd88f92bfa55a584378d968874f
SHA1: e85999ee9ee69daaf4701d671b5574e06dfff015
SHA256: 1E61DD97C45E014EBB6ECDE6E5F55C615F76CE0ACA1D1572CA03857900582F28
File Size: 929.28 KB, 929280 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
Company Name Microsoft Corporation
File Description Host Process for Windows Services
File Version 6.2.19041.0
Internal Name svchost.exe
Legal Copyright © Microsoft Corporation. All rights reserved.
Original Filename Orcus.exe
Product Name Microsoft® Windows® Operating System
Product Version 10.0.19041.0

File Traits

  • .NET
  • Agile.net
  • Fody
  • HighEntropy
  • ntdll
  • RijndaelManaged
  • Run
  • x86

Block Information

Total Blocks: 1,236
Potentially Malicious Blocks: 752
Whitelisted Blocks: 484
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Stealer.O

Files Modified

File Attributes
c:\program files (x86)\system\svchost.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\program files (x86)\system\svchost.exe Synchronize,Write Attributes
c:\program files (x86)\system\svchost.exe.config Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ebrcvmy4.0.cs Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ebrcvmy4.cmdline Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ebrcvmy4.dll Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\temp\ebrcvmy4.err Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ebrcvmy4.out Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ebrcvmy4.tmp Generic Write,Read Attributes
c:\windows\assembly Synchronize,Write Attributes

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
Show More
  • ntdll.dll!NtCreateKey
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySystemInformation
  • 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!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • UNKNOWN
  • win32u.dll!NtGdiAnyLinkedFonts
  • win32u.dll!NtGdiBitBlt
  • win32u.dll!NtGdiCreateBitmap
  • win32u.dll!NtGdiCreateCompatibleBitmap
  • win32u.dll!NtGdiCreateCompatibleDC
  • win32u.dll!NtGdiCreateDIBitmapInternal
  • win32u.dll!NtGdiCreateRectRgn
  • win32u.dll!NtGdiCreateSolidBrush
  • win32u.dll!NtGdiDeleteObjectApp
  • win32u.dll!NtGdiDoPalette
  • win32u.dll!NtGdiDrawStream
  • win32u.dll!NtGdiExtGetObjectW
  • win32u.dll!NtGdiExtTextOutW
  • win32u.dll!NtGdiFontIsLinked
  • win32u.dll!NtGdiGetCharABCWidthsW
  • win32u.dll!NtGdiGetDCDword
  • win32u.dll!NtGdiGetDCObject
  • win32u.dll!NtGdiGetDeviceCaps
  • win32u.dll!NtGdiGetDIBitsInternal
  • win32u.dll!NtGdiGetEntry
  • win32u.dll!NtGdiGetFontData
  • win32u.dll!NtGdiGetGlyphIndicesW
  • win32u.dll!NtGdiGetOutlineTextMetricsInternalW
  • win32u.dll!NtGdiGetRandomRgn
  • win32u.dll!NtGdiGetRealizationInfo
  • win32u.dll!NtGdiGetTextFaceW
  • win32u.dll!NtGdiGetTextMetricsW
  • win32u.dll!NtGdiGetWidthTable
  • win32u.dll!NtGdiHfontCreate

65 additional items are not displayed above.

User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext
Process Shell Execute
  • CreateProcess
Process Terminate
  • TerminateProcess

Shell Command Execution

"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Anjfjoue\AppData\Local\Temp\ebrcvmy4.cmdline"

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