Trojan.KillMBR.XB
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.
| Popularity Rank: | 16,847 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 19 |
| First Seen: | December 2, 2024 |
| Last Seen: | June 29, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.KillMBR.XB indicates that your system has been compromised by a potentially malicious program. This type of threat is generally categorized as a Trojan, which is a broad term for malware that disguises itself as legitimate software. Trojans can have various functions, including data theft, system disruption, and the installation of additional malware. It's essential to address this issue promptly to prevent further damage to your system and protect your personal data.
Table of Contents
What Is Trojan.KillMBR.XB?
Trojan.KillMBR.XB is identified as a Trojan-type threat, suggesting it may be designed to cause harm or exploit vulnerabilities in your system. The specifics of its operation and intentions can vary, but like other Trojans, it likely aims to remain hidden while it performs its malicious activities. The name "Trojan.KillMBR.XB" itself does not directly indicate a known malware family but suggests it could be related to or capable of affecting the Master Boot Record (MBR) of a system, which is a critical component for booting up the operating system.
How Trojan.KillMBR.XB Operates
While the exact mechanisms of Trojan.KillMBR.XB are not detailed here, Trojans typically operate by disguising themselves as useful or harmless programs. Once installed, they can execute a variety of malicious actions, including but not limited to, stealing sensitive information, installing additional malware, or providing unauthorized access to the system. They can spread through various means such as infected software downloads, malicious email attachments, or exploited vulnerabilities in the system or applications.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common indicators include unexpected system crashes, slow performance, unfamiliar programs or icons, and unusual network activity. In some cases, Trojans may also trigger security software alerts or display fake warning messages to deceive the user. Given the potential for Trojans to affect system files and the MBR, as suggested by the name Trojan.KillMBR.XB, symptoms could also include boot issues or failure to start the operating system properly.
How to Remove Trojan.KillMBR.XB
- Boot your system into Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the Trojan.
- Uninstall any recently installed or suspicious programs that could be related to the Trojan.
- Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the Trojan.
- Reboot your system and perform another full scan with your anti-malware tool to ensure that all components of the Trojan have been removed.
Conclusion
Removing Trojan.KillMBR.XB requires careful and thorough action to ensure all components of the malware are eliminated from your system. It's crucial to use reputable security software and follow best practices for malware removal to protect your system and data. After removal, consider taking additional steps to secure your system, such as updating your operating system and applications, using strong antivirus software, and being cautious with email attachments and downloads. By taking these measures, you can significantly reduce the risk of future infections and maintain a safe and secure computing environment.
Analysis Report
General information
| Family Name: | Trojan.KillMBR.XB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
8708ae34abd3f25ea361433ecc007efd
SHA1:
f612c9371817d6002b2078de4d8e2978544a6d2e
SHA256:
F22D8A2297219101B806CE2F5190A3DA6CBFEFDE233EF3ED3D4FBF7B0F8B1621
File Size:
259.58 KB, 259584 bytes
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MD5:
5a987e379ecabe4bc8dbf173b08e8817
SHA1:
f65e4c1061c750cb6637aa06ed36f57b813bf24f
SHA256:
8CB0BDB77FA3226FB242BA593C5388D0A62A70D53ABD2A2DA23EDF26825F342F
File Size:
264.70 KB, 264704 bytes
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MD5:
b8e02395624309192141c7d596785e1d
SHA1:
700a55b92066a9786f1d55f452348232aeca483d
SHA256:
8CFC3DB6483EC68886A82012226A4359706D7332ADF9E41F63742A271AFF2B80
File Size:
2.11 MB, 2110976 bytes
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MD5:
0b16c7232f7e4788de203cf333b8168e
SHA1:
b36396de66da3c482ab2a94fab425f8ce9f2aa5c
SHA256:
461C26464C028893E8502DB044C554E93E31CAD9B26519DD79427121C910BD74
File Size:
1.71 MB, 1710729 bytes
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MD5:
ff7fdaedbe02c9d611862c96730166b1
SHA1:
9e873ba9e9094ca03426da5b40800dd2da767b5f
SHA256:
99687262D5BE7FF9A2727FF0FF0F17330870CD65651CB7EF3C2DADF90EFCC47A
File Size:
297.47 KB, 297472 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 relocations information
- File doesn't have security information
- File has exports table
- File has TLS information
- File is 32-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)
- 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 Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
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 | This installation was built with Inno Setup. |
| Company Name | Microsoft Corporation |
| File Description | Scripted Diagnostics Native Host Setup |
| Product Name | Scripted Diagnostics Native Host |
| Product Version | 10.0.14393.0 (rs1_release.160715-1616) |
File Traits
- dll
- 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: | 359 |
|---|---|
| Potentially Malicious Blocks: | 7 |
| Whitelisted Blocks: | 347 |
| Unknown Blocks: | 5 |
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.MOPB
- Chapak.AHB
- Chapak.HBK
- Trojan.Agent.Gen.GS
- Trojan.Kryptik.Gen.BQN
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- Valley.X
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\is-cnbel.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.1.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\is-ddp3d.tmp\_isetup\_setup64.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\is-r50c6.tmp\b36396de66da3c482ab2a94fab425f8ce9f2aa5c_0001710729.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\« | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\appdata\local\temp\« | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\« | Generic Write,Read Attributes,Delete,LEFT 262144 |
| c:\users\user\appdata\local\temp\« | Generic Write,Read Attributes,LEFT 262144 |
| c:\users\user\appdata\local\temp\« | Generic Write,Read Data,Read Attributes |
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| c:\users\user\appdata\local\temp\« | Generic Write,Read Data,Read Attributes,Delete,LEFT 262144 |
| c:\users\user\appdata\local\temp\« | Generic Write,Read Data,Read Attributes,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 |
|---|---|---|
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | �m � 8�tX �� �v �Z �� T�������Bx �<#�#��$kF%�&� (�(X�)E*J*9*�"+�[1`1�1HO 1�D9ߔ=� @V� A��G�IH[uH�pI��N$N� R20U_*Z^� _�z`�2a$b"hc�w c�zh�ri��j�bk`k�qk�8 l(�lR o �q�XrnJ r�B | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | �m � 8�tX �� �v �Z �� T�������Bx �<#�#��$kF%�&� (�(X�)E*J*9*�"+�[1`1�1HO 1�D9ߔ=� @V� A��G�IH[uH�pI��N$N� R20U_*Z^� _�z`�2a$b"hc�w c�ze�vh�ri��j�bk`k�qk�8 l(�lR o �q�XrnJ | RegNtPreCreateKey |
| HKCU\software\microsoft\ctf\msutb::left | ঔ | RegNtPreCreateKey |
| HKCU\software\microsoft\ctf\msutb::top | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | �m � 8�tX �� �v �Z �� T�������Bx �<#�#��$kF%�&� (�(X�)E*J*9*�"+�[,=� 1`1�1HO 1�D9ߔ=� @V� A��G�IH[uH�pI��N$N� R20U_*Z^� _�z`�2a$b"hc�w c�ze�vh�ri��j�bk`k�qk�8 l(�lR o �q�X | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | �m � 8�tX �� �v �Z �� T�������Bx �<#�#��$kF%�&� (�(X�)E*J*9*�"+�[,=� 1`1�1HO 1�D9ߔ=� @V� A��G�IH[uH�pI��N$N� R20U_*Z^� _�z`�2a$b"hc�w c�ze�vh�ri��j�bk`k�qk�8 l(�lR o �q�X | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | �m � 8�tX �� �v �Z �� T�������Bx �<#�#��$kF%�&� (�(X�)E*J*9*�"+�[,=� 1`1�1HO 1�D9ߔ=� @V� A��G�IH[uH�pI��N$N� R20U_*Z^� _�z`�2a$b"hc�w c�ze�� e�vh�ri��j�bk`k�qk�8 l(�lR o � | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Process Manipulation Evasion |
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| Process Shell Execute |
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| User Data Access |
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| Keyboard Access |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
"C:\Users\Veaoudbd\AppData\Local\Temp\is-R50C6.tmp\b36396de66da3c482ab2a94fab425f8ce9f2aa5c_0001710729.tmp" /SL5="$A0456,1015740,721408,c:\users\user\downloads\b36396de66da3c482ab2a94fab425f8ce9f2aa5c_0001710729"
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