Threat Database Trojans Trojan.MSIL.Agent.XVB

Trojan.MSIL.Agent.XVB

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 5
First Seen: October 14, 2024
Last Seen: February 25, 2026
OS(es) Affected: Windows

The detection of Trojan.MSIL.Agent.XVB on your system indicates a potential security threat that requires immediate attention. This malware is categorized as a Trojan, which is a type of malicious software designed to gain unauthorized access to a computer system. Trojans can be used to steal sensitive information, install additional malware, or provide a backdoor for remote access to the infected system.

What Is Trojan.MSIL.Agent.XVB?

Trojan.MSIL.Agent.XVB is a type of malware that is designed to operate stealthily on an infected system. The name suggests that it is written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic intermediate representation of the .NET Framework. This allows the malware to potentially run on any system that supports the .NET Framework, making it a versatile threat. However, without specific details, it's challenging to pinpoint the exact nature or the goals of this particular Trojan.

How Trojan.MSIL.Agent.XVB Operates

Typically, Trojans like Trojan.MSIL.Agent.XVB are distributed through various means, including phishing emails, infected software downloads, or by exploiting vulnerabilities in software. Once installed, they can operate in several ways, such as monitoring and logging keystrokes, stealing sensitive information like login credentials or credit card numbers, or downloading and installing additional malware. They might also create backdoors, allowing hackers to access the infected system remotely.

Symptoms of Infection

Symptoms of a Trojan infection can vary widely depending on the specific goals of the malware. Common signs include unexpected changes to system settings, unfamiliar programs or icons, slow system performance, frequent crashes, or pop-ups and other unwanted advertisements. In some cases, the infection might not display overt symptoms, making it difficult for users to detect without the aid of security software.

  • Unexplained changes in system behavior or performance
  • New, unfamiliar programs or icons
  • Frequent system crashes or freezes
  • Appearance of unwanted pop-ups or advertisements
  • Difficulty accessing certain system functions or files

How to Remove Trojan.MSIL.Agent.XVB

  1. Boot into 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 Anti-Malware Tool: Utilize a trusted anti-malware program such as SpyHunter to scan your system thoroughly. Ensure the software is updated to the latest version to detect and remove Trojan.MSIL.Agent.XVB effectively.
  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 Browser Settings: Malware often targets browsers to steal information or display unwanted ads. Resetting Chrome, Firefox, Edge, or any other browser you use can help eliminate these issues. Each browser has a reset option in its settings or preferences menu.
  5. Reboot and Re-scan: After completing the above steps, restart your computer and perform another scan with your anti-malware tool to ensure that all traces of the malware have been removed.

Conclusion

Removing Trojan.MSIL.Agent.XVB requires a systematic approach to ensure all components of the malware are eliminated from the system. It's crucial to act promptly to prevent further damage or data theft. After removal, consider taking preventive measures such as keeping your operating system and software up to date, using strong, unique passwords, and being cautious with email attachments and downloads to protect against future infections.

Analysis Report

General information

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

Known Samples

MD5: c01a608d8e32096118624aedb8c7a015
SHA1: 545b337fbea5e6d61094d62e90712bc1c6d1843e
SHA256: 8B3E3A2250FD7D72AF953CF33757E8821F41A3C6793B9014C19DB465B55A3519
File Size: 8.70 KB, 8704 bytes
MD5: b8cb8ba33945a8be0ea0524295861db4
SHA1: ede889717119bc03095fe236da282c0cb3529dda
SHA256: D70D1FAF6C4BAA7E2356B984D2345316D88DFC72F2295F4271AAE7317333B9BF
File Size: 8.70 KB, 8704 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 Memory
File Version 1.0.0.0
Internal Name Memory.dll
Legal Copyright Copyright © 2021
Original Filename Memory.dll
Product Name Memory
Product Version 1.0.0.0

File Traits

  • .NET
  • dll
  • x86

Block Information

Total Blocks: 18
Potentially Malicious Blocks: 1
Whitelisted Blocks: 17
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.BypassUAC.K
  • MSIL.BypassUAC.LC
  • MSIL.BypassUAC.LD
  • MSIL.BypassUAC.P
  • MSIL.Downloader.CAYD
Show More
  • MSIL.Gamehack.OS
  • MSIL.Krypt.XKG
  • MSIL.Rozena.GG

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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