Trojan.Rozena.O
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: | 3 |
| First Seen: | January 5, 2022 |
| Last Seen: | December 18, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.Rozena.O on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and it's essential to understand its nature and how to remove it effectively.
Table of Contents
What Is Trojan.Rozena.O?
Trojan.Rozena.O is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate programs. Trojans are known for their ability to sneak into systems undetected, often by exploiting vulnerabilities or through social engineering tactics. Once inside, they can cause a variety of problems, from stealing sensitive information to disrupting system operations.
How Trojan.Rozena.O Operates
Like other Trojans, Trojan.Rozena.O is likely designed to operate stealthily, attempting to avoid detection by security software. It may use various techniques to hide its presence, such as running in the background, using encryption, or disguising itself as a system process. The primary goal of this malware could be to provide unauthorized access to your computer, allowing attackers to steal data, install additional malware, or use your system for malicious activities.
Symptoms of Infection
Identifying a Trojan infection can be challenging due to its stealthy nature. However, there are several symptoms that might indicate the presence of Trojan.Rozena.O or similar malware. These include unexpected system crashes, slow performance, unfamiliar programs or icons, unusual network activity, and pop-ups or other unwanted advertisements. If you notice any of these symptoms, it's crucial to take immediate action to secure your system.
- Unexplained changes in system settings or files
- New, unfamiliar icons or programs
- Increased network activity without apparent cause
- System freezes or crashes
- Appearance of unwanted pop-ups or advertisements
How to Remove Trojan.Rozena.O
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the malware.
- Uninstall any recently installed programs that you do not recognize or that were installed around the time the malware was detected.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings changes made by the malware.
- After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that all malware components have been removed.
Conclusion
Removing Trojan.Rozena.O requires careful and systematic steps to ensure that all components of the malware are eliminated from your system. It's also crucial to adopt preventive measures to avoid future infections, such as keeping your operating system and software up to date, using strong, unique passwords, and being cautious when opening email attachments or downloading software from the internet. By taking these steps, you can help protect your computer and personal data from the threats posed by Trojan.Rozena.O and other types of malware.
Analysis Report
General information
| Family Name: | Trojan.Rozena.O |
|---|---|
| Packers: | UPX x64 |
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
891a56ea22fd4be931fc64c350579058
SHA1:
2f5b52f9676379076c9caaa480b17c10d83a179e
SHA256:
7F651CA92B6D1F71DD2CB8E3AF99998CCDC20FEC2C9569DEC3F2764803742DC0
File Size:
31.23 KB, 31232 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have relocations information
- File doesn't have security information
- File has been packed
- File has TLS information
- File is 64-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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- File is Native application (NOT .NET application)
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- No Version Info
- packed
- WriteProcessMemory
- 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: | 879 |
|---|---|
| Potentially Malicious Blocks: | 5 |
| Whitelisted Blocks: | 866 |
| Unknown Blocks: | 8 |
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.- Agent.GHV
- Agent.PFDB
- Agent.XGA
- Rozena.FDG
- Rozena.FDH
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- Rozena.UAA
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 Manipulation Evasion |
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