Trojan.Ousaban.U
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: | 2 |
| First Seen: | February 12, 2025 |
| Last Seen: | September 17, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.Ousaban.U on your system indicates a potential security threat that requires immediate attention. Trojans are a type of malware designed to allow unauthorized access to a computer system, and they can lead to a range of problems, including data theft, system crashes, and the installation of additional malware. Understanding what Trojan.Ousaban.U is, how it operates, and the symptoms it causes can help you take the necessary steps to protect your system and remove the threat.
Table of Contents
What Is Trojan.Ousaban.U?
Trojan.Ousaban.U is identified as a Trojan-type threat, which means it is designed to deceive users into installing it by disguising itself as legitimate software. Once installed, it can create a backdoor on the infected system, allowing remote access and control by the attacker. This can lead to various malicious activities, including data theft, the installation of additional malware, and the use of the system for spamming or launching attacks on other systems.
How Trojan.Ousaban.U Operates
Trojan.Ousaban.U, like other Trojans, operates by exploiting vulnerabilities in the system or by tricking users into installing it. It can be spread through various means, including email attachments, infected software downloads, and compromised websites. Once it gains access to a system, it can start its malicious activities, which may include monitoring user activity, stealing sensitive information, and disrupting system operations.
Symptoms of Infection
Identifying the symptoms of a Trojan.Ousaban.U infection can be challenging because Trojans are designed to remain stealthy. However, some common indicators of a Trojan infection include unexpected changes to system settings, unusual network activity, slow system performance, and the appearance of unwanted programs or files. Users may also notice that their system is behaving erratically, such as frequent crashes or the failure of certain applications to launch properly.
How to Remove Trojan.Ousaban.U
- Boot your system into Safe Mode with Networking to prevent the malware from loading and to allow for internet access. This will make it easier to download and install removal tools.
- Download and install a reputable anti-malware tool, such as SpyHunter, which can scan your system for the Trojan and other malware. Perform a full scan of your system to detect and remove all instances of the malware.
- Uninstall any suspicious programs that you do not recognize or that were installed around the time the infection was detected. Be cautious and only uninstall programs that you are certain are not necessary for your system's operation.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings. This can help remove any malicious extensions or settings that the Trojan may have installed.
- Reboot your system after completing the above steps and perform another scan with your anti-malware tool to ensure that the threat has been fully removed. Regularly scanning your system can help prevent future infections.
Conclusion
Removing Trojan.Ousaban.U from your system requires careful attention to detail and the use of reputable anti-malware tools. By understanding the nature of the threat and following the steps outlined above, you can protect your system and data from the potential harm caused by this Trojan. It's also important to practice good cybersecurity habits, such as avoiding suspicious downloads, using strong passwords, and keeping your operating system and software up to date, to reduce the risk of future infections.
Analysis Report
General information
| Family Name: | Trojan.Ousaban.U |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
98c91eb38b42350f408c91836392b13c
SHA1:
1f283c34f3b7d9278b9dadb17dec1d140b3b2afc
SHA256:
B667BB09D1D44FD66B4474486A000EA38EF9EAC64D7931CC14CBE7F1DBB74790
File Size:
2.03 MB, 2031104 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have security information
- File has exports table
- File is 64-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
- dll
- VirtualQueryEx
- x64
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: | 8,555 |
|---|---|
| Potentially Malicious Blocks: | 4 |
| Whitelisted Blocks: | 8,551 |
| Unknown Blocks: | 0 |
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.- Emotet.FHB
- Filecoder.DWA
- Ousaban.U
- Rugmi.TB
- TrickBot.FJB
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- TrickBot.FJC
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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