Trojan.Downloader.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: | 80 % (High) |
| Infected Computers: | 14 |
| First Seen: | October 8, 2012 |
| OS(es) Affected: | Windows |
The detection of Trojan.Downloader.Vundo.J on your system indicates a potential security threat. This type of malware is designed to download and install additional malicious software on your computer, which can lead to a range of problems, including data theft, system crashes, and compromised performance. In this report, we will provide an overview of Trojan.Downloader.Vundo.J, its operating methods, symptoms of infection, and steps to remove it from your system.
Table of Contents
What Is Trojan.Downloader.Vundo.J?
Trojan.Downloader.Vundo.J is a type of Trojan horse malware that disguises itself as a legitimate program or file. Once installed, it can download and execute additional malicious code, allowing attackers to gain control over your system. The name "Trojan.Downloader.Vundo.J" suggests that it is a downloader Trojan, which is a type of malware that specializes in downloading and installing other malicious software.
How Trojan.Downloader.Vundo.J Operates
Trojan.Downloader.Vundo.J operates by exploiting vulnerabilities in your system or tricking you into installing it. It can be spread through various means, including infected software downloads, malicious email attachments, or compromised websites. Once installed, it can connect to a command and control server to receive instructions and download additional malware. This can lead to a range of malicious activities, including data theft, keylogging, and ransomware attacks.
Symptoms of Infection
Symptoms of a Trojan.Downloader.Vundo.J infection can vary, but common signs include slow system performance, frequent crashes, and unexpected pop-ups or ads. You may also notice that your system is behaving erratically, or that your browser is being redirected to suspicious websites. In some cases, you may not notice any symptoms at all, which is why it's essential to run regular virus scans and maintain up-to-date security software.
- Slow system performance
- Frequent crashes or freezes
- Unexpected pop-ups or ads
- Browser redirects to suspicious websites
- Unexplained changes to system settings or files
How to Remove Trojan.Downloader.Vundo.J
- Boot your system in Safe Mode with Networking to prevent the malware from loading.
- Run a full scan with a reputable anti-malware tool, such as SpyHunter, to detect and remove the malware.
- Uninstall any suspicious programs or software that may be related to the infection.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your system and run another scan to ensure that the malware has been completely removed.
Conclusion
Removing Trojan.Downloader.Vundo.J from your system requires careful attention to detail and a comprehensive approach. By following the steps outlined in this report, you can help to ensure that your system is clean and secure. Remember to always maintain up-to-date security software, run regular virus scans, and be cautious when downloading software or clicking on links from unknown sources. By taking these precautions, you can help to protect your system from future malware infections and keep your data safe.
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Panda | Trj/OCJ.C |
| AVG | Generic31.ADN |
| Fortinet | W32/Cidox.URQ!tr |
| Kaspersky | Trojan.Win32.Cidox.urq |
| Panda | Trj/OCJ.D |
| AVG | Generic31.BNWS |
| Fortinet | W32/Cidox.ACCN!tr |
| AntiVir | TR/Kazy.117219.77 |
| Kaspersky | Trojan.Win32.Cidox.accn |
| eSafe | Win32.Trojan |
| Avast | Win32:Kryptik-LDO [Trj] |
| F-Prot | W32/Downldr2.IZIW |
| K7AntiVirus | Trojan |
| McAfee | RDN/Downloader.a!bq |
| CAT-QuickHeal | Trojan.Agent.WD.cw6 |
SpyHunter Detects & Remove Trojan.Downloader.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. | tpnvnmb.dll | f65838a463202fc9b16526a1c31c8baf | 3 |
| 2. | vaymcyl.dll | a7add8058dde29973cb8bb4a34b1c539 | 2 |
| 3. | yxsuzlc.dll | 63b34123956a443f636771ede53f98e0 | 2 |
| 4. | 773A.exe | 1a4e970d540476f50b42dd09cc3d2e56 | 1 |
| 5. | pbyhmkd.dll | 3c00bc0343dc19c6f0a152d039bc2e8b | 1 |
| 6. | tuitjel.dll | e5e25ec02821506208ffd136819659f2 | 1 |
| 7. | xnwpwmk.dll | 719fef63b54f4fbf8d7ce142f85aa0c0 | 1 |
| 8. | ctivkuf.dll | eab0ec6acb884318019e8e0008ff263c | 1 |
| 9. | ygkpqbd.dll | 64de0bc33d25e1e32580a1d298d3ef27 | 1 |
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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