Trojan.Vidar.F
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 3,626 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 3,195 |
| First Seen: | September 4, 2023 |
| Last Seen: | July 20, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Vidar.F on your system indicates a potential security threat that requires immediate attention. Trojans are a type of malware that can cause significant harm to your computer and compromise your personal data. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.
Table of Contents
What Is Trojan.Vidar.F?
Trojan.Vidar.F is a detected threat that falls under the category of Trojans, which are malicious programs designed to gain unauthorized access to a computer system. The name itself does not specify a particular malware family, but rather indicates that it has been identified as a Trojan-type threat. Trojans can be used to steal sensitive information, install additional malware, or provide a backdoor for remote access to the infected system.
How Trojan.Vidar.F Operates
Like other Trojans, Trojan.Vidar.F is likely designed to operate stealthily, attempting to evade detection by security software. It may use various techniques to infect a system, such as exploiting vulnerabilities in software, disguising itself as a legitimate program, or being downloaded inadvertently by a user. Once installed, it can start executing its payload, which could range from data theft to malware installation, depending on its intended purpose.
Symptoms of Infection
Symptoms of a Trojan infection can vary widely, depending on the specific actions of the malware. Common indicators include unusual system behavior, such as unexpected crashes, slow performance, or unfamiliar programs running in the background. You might also notice changes in your browser settings, unexpected pop-ups, or suspicious network activity. However, some Trojans are designed to be silent and may not exhibit any noticeable symptoms, making regular system scans crucial for detection.
How to Remove Trojan.Vidar.F
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove all components of the Trojan.
- Uninstall any suspicious programs that you do not recognize or that were installed around the time of the infection. Be cautious and only remove programs you are certain are not needed.
- Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the Trojan.
- After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that all traces of the Trojan have been removed.
Conclusion
Removing Trojan.Vidar.F requires a combination of technical knowledge and the right tools. It's crucial to act quickly to prevent further damage and protect your personal data. Regularly updating your operating system, using reputable security software, and practicing safe computing habits can significantly reduce the risk of future infections. Remember, vigilance and proactive measures are key to maintaining the security and integrity of your computer system.
Analysis Report
General information
| Family Name: | Trojan.Vidar.F |
|---|---|
| Signature status: | Hash Mismatch |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
e0b0dd8db59f25288937c7223d074213
SHA1:
f6b4981946ab8aaf43ba2c375aa271af0c0f4f5f
SHA256:
EEF3C3C7BA7227258454A2C46F56C5766F6585A92B12A488BEB6D2CF1754E6D4
File Size:
6.48 MB, 6477312 bytes
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MD5:
805b0c04bf68954efcf77bb1b7ffb8e7
SHA1:
eba565e7757d5d580de539056bfe83e48766bc87
SHA256:
9EE5976C70184734292F5B542DEA452986520D44E9462FF4F2AB7DAF5FFDE11E
File Size:
4.49 MB, 4494565 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have security information
- File has exports table
- File has TLS information
- 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)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | VMware, Inc. |
| File Description | VMware base library |
| File Version | 16.1.0 build-17198959 |
| Internal Name | vmwarebase |
| Legal Copyright | Copyright © 1998-2020 VMware, Inc. |
| Original Filename | vmwarebase.dll |
| Product Name | VMware Workstation |
| Product Version | 16.1.0 build-17198959 |
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| ASUSTeK Computer Inc. | DigiCert SHA2 High Assurance Code Signing CA | Hash Mismatch |
File Traits
- 2+ executable sections
- CryptUnprotectData
- dll
- HighEntropy
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 1,240 |
|---|---|
| Potentially Malicious Blocks: | 39 |
| Whitelisted Blocks: | 917 |
| Unknown Blocks: | 284 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
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| Process Shell Execute |
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| Anti Debug |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\f6b4981946ab8aaf43ba2c375aa271af0c0f4f5f_0006477312.,LiQMAxHB
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C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\eba565e7757d5d580de539056bfe83e48766bc87_0004494565.,LiQMAxHB
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