Trojan.Kryptik.NRU
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: | 6 |
| First Seen: | September 8, 2025 |
| Last Seen: | November 1, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.Kryptik.NRU on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operation, symptoms, and most importantly, steps to remove it from your system. It's essential to approach this situation with caution and follow the recommended guidelines to ensure the security and integrity of your data and system.
Table of Contents
What Is Trojan.Kryptik.NRU?
Trojan.Kryptik.NRU is identified as a Trojan-type threat, which is a broad category of malware designed to allow unauthorized access to a computer system. Trojans can be used to steal sensitive information, install additional malware, or provide a backdoor for remote access by an attacker. The name itself does not specify a known malware family but indicates the type of threat it poses.
How Trojan.Kryptik.NRU Operates
Trojan.Kryptik.NRU, like other Trojans, operates by disguising itself as legitimate software or attaching itself to legitimate programs. Once installed, it can execute a variety of malicious actions, depending on its design. This can include data theft, keystroke logging, or even allowing an attacker to control the infected system remotely. Trojans often exploit vulnerabilities in software or use social engineering tactics to trick users into installing them.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common signs include unusual system behavior, such as unexpected pop-ups, slow system performance, or programs starting automatically without user intervention. Additionally, if your antivirus software is disabled or your firewall settings are altered without your knowledge, it could be an indication of a Trojan infection. Monitoring your system for any unusual activity and keeping your antivirus software up to date is crucial in detecting and preventing such threats.
How to Remove Trojan.Kryptik.NRU
- Boot Your System in Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. Restart your computer, and as it boots up, press the key that opens the boot menu (this key varies by computer manufacturer but is often F12, F2, or Del). Select the option to boot in Safe Mode with Networking.
- Perform a Full Scan with a Reputable Tool: Use an antivirus tool like SpyHunter to perform a full scan of your system. Ensure the tool is updated with the latest definitions before starting the scan. This step is crucial in identifying and removing all components of the Trojan.
- Uninstall Suspicious Programs: Go through your installed programs and uninstall any that you do not recognize or that were installed around the time the infection was detected. Be cautious and only uninstall programs you are sure are not needed.
- Reset Your Browsers: Resetting your browsers (Chrome, Firefox, Edge) to their default settings can help remove any malicious extensions or settings changes made by the Trojan. Each browser has a slightly different process for doing this, so refer to the browser's help documentation for specific instructions.
- Reboot and Re-scan: After completing the above steps, reboot your system and perform another full scan with your antivirus software to ensure all components of the Trojan have been removed.
Conclusion
Removing Trojan.Kryptik.NRU from your system requires careful and methodical steps to ensure all components are eliminated. It's also a good opportunity to review your system's security posture, including updating your operating system, browsers, and other software to the latest versions, using strong and unique passwords, and being cautious with emails and downloads from unknown sources. By following these guidelines and maintaining vigilance, you can protect your system from future threats and ensure a secure computing environment.
Analysis Report
General information
| Family Name: | Trojan.Kryptik.NRU |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
10099927ca73bee3d27af908fdb8db33
SHA1:
483a5f308ae8513546839d9b9e613ba5052f1423
SHA256:
237F734054CA9AC3E5E2B612DF29132301C4BF0530218D6275C415C11B5971B7
File Size:
828.42 KB, 828416 bytes
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MD5:
155af2bd59aaead8f4020d3a19c1765c
SHA1:
926b7353ffff7a34e1b73a5888eef4a734fb74bd
SHA256:
5453ACF964552200893BD02B4AFEF111F87AC65F14FEEFE843A39F3D6042B9DF
File Size:
844.80 KB, 844800 bytes
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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 resources
- File doesn't have security information
- File has TLS information
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
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- 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)
File Traits
- fptable
- HighEntropy
- No Version Info
- 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: | 1,194 |
|---|---|
| Potentially Malicious Blocks: | 343 |
| Whitelisted Blocks: | 851 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\user\appdata\local\temp\4781726940\fwkdagwk.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | フ ȁ 䊩 龡^ ʴ 紘Çȭ 獖}ɯ ⦘· ˇ 좟Êh , ֢ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ὼ摴⛙ǜ | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | �R ��� � �8\x +� �� �6 �� � ۀ�=���� � �� B� � ���%�� �5Bx �� I sb#@�#��#�O$�� $¨%f�%�'i(�*9*�"*�� ,=� 1HO 1�D4.�5,]9�9ߔ:�r;�4=� @V� @�*B&J B�� C�!FH� H�� K�iL7� L�KLօN | RegNtPreCreateKey |
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 |
|---|---|
| User Data Access |
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| Anti Debug |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Syscall Use |
Show More
55 additional items are not displayed above. |
| Process Terminate |
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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:\Users\Wkkvigyy\AppData\Local\Temp\4781726940\Fwkdagwk.exe
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