Trojan.Rugmi.FK
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: | 4 |
| First Seen: | October 15, 2025 |
| Last Seen: | February 19, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Rugmi.FK on your system indicates a potential security threat that requires immediate attention. Trojan-type threats are known for their ability to disguise themselves as legitimate programs, making them difficult to detect and remove. In this report, we will provide an overview of the Trojan.Rugmi.FK threat, its operating methods, symptoms of infection, and steps to remove it from your system.
Table of Contents
What Is Trojan.Rugmi.FK?
Trojan.Rugmi.FK is a type of malware that can compromise the security of your system. The name itself does not provide specific information about the malware family, but it is clear that it is a Trojan-type threat. Trojans are known for their ability to sneak into systems unnoticed, often by disguising themselves as legitimate programs or attachments. Once inside, they can cause a range of problems, from stealing sensitive information to disrupting system operations.
How Trojan.Rugmi.FK Operates
Like other Trojan-type threats, Trojan.Rugmi.FK likely operates by exploiting vulnerabilities in system security or by tricking users into installing it. Once installed, it can communicate with its creators, allowing them to control the infected system remotely. This can lead to unauthorized access to personal data, installation of additional malware, or even use of the system for malicious activities such as spamming or distributing illegal content.
Symptoms of Infection
Symptoms of a Trojan.Rugmi.FK infection can vary, but common signs include unusual system behavior, such as unexpected crashes, slow performance, or unfamiliar programs appearing on the system. You might also notice changes in your browser settings or the presence of unwanted toolbars. In some cases, the infection might not display any noticeable symptoms, making it harder to detect without proper security software.
How to Remove Trojan.Rugmi.FK
- Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to use the internet to download removal tools while minimizing the risk of the malware spreading or causing further damage.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated to the latest version to increase the chances of detecting and removing the malware.
- Uninstall suspicious programs that you do not recognize or that were installed around the time the infection was detected. Be cautious and only remove programs you are certain are malicious or unnecessary.
- Reset your browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the malware.
- After completing the above steps, reboot your system and perform another scan to ensure that the malware has been completely removed. Repeat the scanning process until no threats are detected to confirm the removal of Trojan.Rugmi.FK.
Conclusion
Removing Trojan.Rugmi.FK from your system requires careful steps to ensure complete eradication. It is crucial to act promptly to minimize potential damage. By following the guidelines outlined above and maintaining vigilance with regular system scans and updates, you can protect your system from future threats. Remember, prevention is key, so always be cautious when opening email attachments, downloading software, or clicking on links from unknown sources.
Analysis Report
General information
| Family Name: | Trojan.Rugmi.FK |
|---|---|
| Signature status: | Hash Mismatch |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
0d38f891849e6b7204ecd4d1958d4faf
SHA1:
5934fdfd218c25c2c1917e9ab84ee7271fd38e73
SHA256:
9D79227E61DC4E51B098C070D6FD38090A1B5FBB4F1E91C4DB3CBE97B16DEEFD
File Size:
5.04 MB, 5040800 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File has exports table
- File has TLS information
- 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)
- 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 |
|---|---|
| Comments | Flavor=Retail |
| Company Name | Microsoft Corporation |
| File Description | .NET Runtime |
| File Version | 8,0,1024,46610 @Commit: 81cabf2857a01351e5ab578947c7403a5b128ad1 |
| Internal Name | CoreCLR.dll |
| Legal Copyright | © Microsoft Corporation. All rights reserved. |
| Original Filename | CoreCLR.dll |
| Product Name | Microsoft® .NET |
| Product Version | 8,0,1024,46610 @Commit: 81cabf2857a01351e5ab578947c7403a5b128ad1 |
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 |
|---|---|---|
| .NET | Microsoft Code Signing PCA 2011 | Hash Mismatch |
File Traits
- 2+ executable sections
- dll
- 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: | 33,028 |
|---|---|
| Potentially Malicious Blocks: | 1 |
| Whitelisted Blocks: | 33,027 |
| 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.- Rugmi.FK
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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