Trojan.Vundo.J
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.
| Threat Level: | 90 % (High) |
| Infected Computers: | 69 |
| First Seen: | July 24, 2009 |
| Last Seen: | February 26, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Vundo.J on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise your computer's security and potentially steal sensitive information or disrupt system operations. 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.Vundo.J?
Trojan.Vundo.J 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.Vundo.J" suggests that it is a variant of the Trojan.Vundo malware, which is known for its ability to download and install additional malware, hijack system settings, and display unwanted advertisements. However, without specific details about this variant, it is crucial to focus on general removal and prevention strategies.
How Trojan.Vundo.J Operates
Once installed, Trojan.Vundo.J can operate in the background, potentially downloading and installing additional malware, stealing sensitive information, or modifying system settings. It may also attempt to connect to remote servers to receive updates or transmit stolen data. The exact operations of Trojan.Vundo.J may vary, but its primary goal is to compromise your system's security and potentially generate revenue for its creators through malicious activities.
Symptoms of Infection
Infected systems may exhibit various symptoms, including slow performance, frequent crashes, unwanted pop-ups or advertisements, and unexpected changes to system settings. You may also notice suspicious programs or processes running in the background, or unusual network activity. However, some infections may not display noticeable symptoms, making it essential to regularly scan your system for malware using reputable security software.
- Unexplained system crashes or freezes
- Slow system performance
- Unwanted pop-ups or advertisements
- Suspicious programs or processes running in the background
- Unexpected changes to system settings
How to Remove Trojan.Vundo.J
- Restart your system in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
- Use a reputable malware removal tool, such as SpyHunter, to perform a full system scan and detect any malware infections. Ensure the tool is updated with the latest definitions to improve detection rates.
- Uninstall any suspicious programs or applications that may be related to the infection. Be cautious when uninstalling programs, as some may be legitimate or required for system operation.
- Reset your web browsers, such as Chrome, Firefox, or Edge, to their default settings to remove any malicious extensions or settings. This can help prevent the malware from using the browser to propagate or steal information.
- Reboot your system and perform another full scan with your malware removal tool to ensure that all remnants of the infection have been removed. This step is crucial in verifying the effectiveness of the removal process.
Conclusion
Removing Trojan.Vundo.J from your system requires a combination of technical expertise and caution. By following the steps outlined above and using reputable security software, you can effectively remove the malware and prevent future infections. It is essential to remain vigilant and regularly scan your system for malware to ensure your computer remains secure. Additionally, practicing safe computing habits, such as avoiding suspicious downloads and keeping your operating system and software up-to-date, can help prevent similar infections in the future.
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Symantec | Packed.Generic.217 |
| Sunbelt | Trojan.Win32.Vundo.Gen (v) |
| Panda | Trj/CI.A |
| NOD32 | a variant of Win32/Kryptik.MU |
| Kaspersky | Packed.Win32.Krap.n |
| Fortinet | W32/Krap.N!tr |
| F-Secure | Trojan:W32/Vundo.gen!A |
| eTrust-Vet | Win32/VundoCryptorAF!generic |
| CAT-QuickHeal | Win32.Packed.Krap.n.6 |
| BitDefender | Gen:Trojan.Heur.Vundo.7018E7D7D7 |
| AVG | Generic13.AQSC |
| Avast | Win32:MoPack |
| Authentium | W32/Virtumonde.AH2.gen!Eldorado |
| Antiy-AVL | Packed/Win32.Krap |
| a-squared | Trojan.Win32.Vundo!IK |
SpyHunter Detects & Remove Trojan.Vundo.J
File System Details
| # | File Name | MD5 |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|---|
| 1. | oxlwyr.dll | 2fc45cd304021afc18c3940e44d8d653 | 0 |
| 2. | foenvj.dll | 47807b23779807efcc0bb5c5e3df4f28 | 0 |
| 3. | rnfxhe.dll | 24f4d9d7b70f2b98c4b588851b37099f | 0 |
| 4. | uwapvk.dll | 35308a5772a06d6eb96ed150391f05a0 | 0 |
Analysis Report
General information
| Family Name: | Trojan.Vundo.J |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
4b4ed4f2b9edf92a6d64c0a7f40c3e09
SHA1:
15ec737eee7afeeb14997338c7d6590c5c84b0d7
SHA256:
D611D03C6A1F97BB96B1C66E99710993B48A9426D2DFDAC00AFA09A05DE7B988
File Size:
37.89 KB, 37888 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have resources
- File doesn't have security 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)
File Traits
- 2+ executable sections
- dll
- ntdll
- VirtualQueryEx
- WriteProcessMemory
- 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: | 71 |
|---|---|
| Potentially Malicious Blocks: | 63 |
| Whitelisted Blocks: | 5 |
| Unknown Blocks: | 3 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- Vundo.J
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 |
Show More
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| Process Manipulation Evasion |
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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\15ec737eee7afeeb14997338c7d6590c5c84b0d7_0000037888.,LiQMAxHB
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