Backdoor.Spy.Agent.NB
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: | 60 % (Medium) |
| Infected Computers: | 2 |
| First Seen: | July 19, 2024 |
| Last Seen: | November 27, 2025 |
| OS(es) Affected: | Windows |
The detection of Backdoor.Spy.Agent.NB on your system indicates a potential security threat that requires immediate attention. This detection name suggests a backdoor threat, which is a type of malware that allows unauthorized access to your computer. In this report, we will provide you with general guidance on what this threat is, how it operates, its symptoms, and most importantly, how to remove it from your system.
Table of Contents
What Is Backdoor.Spy.Agent.NB?
Backdoor.Spy.Agent.NB is identified as a backdoor threat, which means it is designed to bypass security mechanisms and allow unauthorized access to your computer. Backdoor threats are typically used to spy on users, steal sensitive information, or gain control over the infected system for malicious purposes. The name itself does not directly indicate a specific malware family, but its functionality is characteristic of backdoor malware.
How Backdoor.Spy.Agent.NB Operates
Backdoor threats like Backdoor.Spy.Agent.NB operate by creating a covert communication channel between your computer and a command and control server controlled by the attacker. This channel allows the attacker to send commands to your computer, potentially leading to the theft of sensitive information, installation of additional malware, or use of your computer for malicious activities such as spamming or participating in distributed denial-of-service (DDoS) attacks. These threats often exploit vulnerabilities in software or use social engineering tactics to gain initial access to a system.
Symptoms of Infection
Symptoms of a backdoor infection can be subtle and may not always be immediately noticeable. However, signs that your computer might be infected include unusual network activity, slow performance, frequent crashes, or the appearance of unwanted programs or toolbars. Sometimes, backdoors can operate without visible symptoms, making them difficult to detect without proper security software.
How to Remove Backdoor.Spy.Agent.NB
- Boot into Safe Mode with Networking: This will limit the functionality of the malware and give you a safer environment to clean your computer. To do this, restart your computer and press the key to access your boot menu (this key varies by manufacturer but is often F12, F2, or Del). Select the option to boot into Safe Mode with Networking.
- Perform a Full Scan with a Reputable Tool: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure your anti-malware software is updated before running the scan to detect the latest threats.
- Uninstall Suspicious Programs: Go through your list of installed programs and uninstall any that you do not recognize or that were installed around the time you suspect the infection occurred.
- Reset Your Browsers: Resetting your web browsers (such as Chrome, Firefox, or Edge) to their default settings can help remove any malicious extensions or settings changes made by the malware. You can find the option to reset your browser in its settings or preferences menu.
- Reboot and Re-scan: After completing the above steps, reboot your computer and perform another full scan with your anti-malware software to ensure that the threat has been completely removed.
Conclusion
Removing Backdoor.Spy.Agent.NB from your system requires careful steps to ensure the malware is completely eradicated. By following the guidance provided, you can help protect your computer and sensitive information from unauthorized access and potential theft. Remember, prevention is key; keeping your operating system, software, and security solutions up to date, along with practicing safe computing habits, can significantly reduce the risk of future infections.
Analysis Report
General information
| Family Name: | Backdoor.Spy.Agent.NB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
9216422e1bdfe746c61e0b551b4e95e2
SHA1:
ab5bfcc2937250b892f9fdac853de02f67e6fdd5
SHA256:
6115D408D1283BB9D1A6129FA4EC9F349D2D01D4116E6D0B2F3E7998357CD259
File Size:
3.01 MB, 3009024 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have security 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)
File Traits
- 2+ executable sections
- fptable
- JMC
- No Version Info
- 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: | 9,555 |
|---|---|
| Potentially Malicious Blocks: | 43 |
| Whitelisted Blocks: | 9,395 |
| Unknown Blocks: | 117 |
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.- BypassUAC.BH
- Metasploit.Gen.D
- Spy.Agent.NB
- Spy.Agent.ND
- Spy.Agent.NDA
Show More
- Spy.Agent.NDB
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\log.txt | Generic Write,Read Attributes |
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 |
Show More
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