Threat Database Trojans Trojan.Vools.B

Trojan.Vools.B

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 2,307
First Seen: April 16, 2019
Last Seen: December 4, 2025
OS(es) Affected: Windows

The detection of Trojan.Vools.B 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.

What Is Trojan.Vools.B?

Trojan.Vools.B, as indicated by its name, is classified as a Trojan-type threat. Trojans are malicious programs that deceive users into installing them by disguising themselves as legitimate software. Once installed, they can cause significant harm by stealing sensitive information, installing additional malware, or providing unauthorized access to the infected system. The name "Trojan.Vools.B" itself does not directly indicate a specific malware family but suggests it is a variant of malware that has been detected and categorized under the broader umbrella of Trojan threats.

How Trojan.Vools.B Operates

Understanding how Trojan.Vools.B operates is crucial for devising an effective removal strategy. Typically, Trojans like Trojan.Vools.B are designed to remain stealthy, avoiding detection by traditional antivirus software through various evasion techniques. They can spread through contaminated downloads, infected email attachments, or exploited vulnerabilities in software. Once inside a system, they can create backdoors for remote access, download and install additional malware, or engage in other malicious activities such as data theft or keystroke logging.

Symptoms of Infection

Identifying the symptoms of a Trojan infection can be challenging due to their stealthy nature. However, common indicators include unusual system behavior such as slow performance, frequent crashes, or the appearance of unwanted programs or toolbars. Additionally, if your antivirus software is disabled without your consent, or if you notice strange network activity, these could be signs of a Trojan infection. It's also possible for an infected system to show no obvious symptoms, making regular system scans with reputable security software essential for detection.

How to Remove Trojan.Vools.B

  1. Boot into Safe Mode with Networking: This will help prevent the malware from loading and give you a cleaner environment to perform the removal process.
  2. Perform a Full Scan with a Reputable Tool: Utilize a trusted anti-malware tool, such as SpyHunter, to scan your system thoroughly. These tools are designed to detect and remove Trojans and other malware effectively.
  3. Uninstall Suspicious Programs: Go through your installed programs and uninstall any that you do not recognize or that were installed around the time you suspect the infection occurred.
  4. Reset Your Browsers: Trojans can often install malicious extensions or alter browser settings. Resetting browsers like Chrome, Firefox, or Edge to their default settings can help remove these changes.
  5. Reboot and Re-scan: After completing the above steps, reboot your system and perform another full scan with your anti-malware tool to ensure that all components of the Trojan have been removed.

Conclusion

Removing Trojan.Vools.B from your system requires careful and systematic steps to ensure all components of the malware are eliminated. By understanding the nature of the threat, recognizing the symptoms of infection, and following the outlined removal process, you can effectively restore your system's security and integrity. Remember, prevention is key; maintaining updated antivirus software, being cautious with email attachments and downloads, and regularly scanning your system can help protect against future infections.

Analysis Report

General information

Family Name: Trojan.Vools.B
Signature status: No Signature

Known Samples

MD5: 5dc94ce34f396f74692a49aec86ed119
SHA1: 29ea3d62bd2fba56fa4008c364927c6003f71c19
SHA256: ABBDCC7BE4F96E4424E30C73C0CC187200683B96E45CBB7F1C7720844A62ADAB
File Size: 109.06 KB, 109056 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have security information
  • File has exports table
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET 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
Company Name Microsoft Corporation
File Description Windows Core Module
File Version 6.3.9600.16384
Internal Name Windows Core Module
Legal Copyright © Microsoft Corporation. All rights reserved.
Original Filename Windows Core Module
Product Name Microsoft® Windows® Operating System
Product Version 6.3.9600.16384

File Traits

  • dll
  • HighEntropy
  • x86

Block Information

Total Blocks: 449
Potentially Malicious Blocks: 36
Whitelisted Blocks: 413
Unknown Blocks: 0

Visual Map

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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 0 x x x x x x x x x 0 x x x 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 2 1 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtProtectVirtualMemory
Show More
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtUserGetKeyboardLayout
  • win32u.dll!NtUserGetThreadState
Process Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\29ea3d62bd2fba56fa4008c364927c6003f71c19_0000109056.,LiQMAxHB

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