Trojan.Agent.NBM
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 6, 2025 |
| Last Seen: | April 17, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Agent.NBM 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 take steps to remove it to prevent further damage.
Table of Contents
What Is Trojan.Agent.NBM?
Trojan.Agent.NBM is a type of Trojan horse malware that can infect your computer without your knowledge or consent. Trojans are malicious programs that disguise themselves as legitimate software, allowing them to bypass security measures and gain unauthorized access to your system. The term "Agent" in the detection name suggests that this malware may be designed to perform specific tasks or functions on behalf of its creators, while "NBM" could indicate a particular variant or module of the malware.
How Trojan.Agent.NBM Operates
Once installed, Trojan.Agent.NBM can operate in various ways, depending on its intended purpose. It may attempt to connect to remote servers to receive instructions or transmit stolen data, such as login credentials, personal information, or sensitive files. The malware may also try to download and install additional malicious components, creating a more extensive and complex threat landscape. Trojan.Agent.NBM can exploit vulnerabilities in your system or applications to gain elevated privileges, allowing it to carry out its malicious activities more effectively.
Symptoms of Infection
Infected systems may exhibit a range of symptoms, including unusual network activity, slow performance, or frequent crashes. You may notice unfamiliar programs or icons on your desktop, or receive unexpected pop-ups, alerts, or warnings. In some cases, Trojan.Agent.NBM may attempt to disguise itself as a legitimate program or system process, making it more challenging to detect. If you suspect that your system is infected, it's crucial to take immediate action to prevent further damage and potential data loss.
- Unexplained changes to system settings or configuration
- Increased CPU usage or memory consumption
- Difficulty accessing certain files or applications
- Unusual or suspicious network activity
How to Remove Trojan.Agent.NBM
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of Trojan.Agent.NBM
- Uninstall any suspicious programs or applications that may be related to the malware
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons
- Reboot your system and perform a follow-up scan to ensure that all remnants of the malware have been removed
Conclusion
Removing Trojan.Agent.NBM from your system requires a combination of technical expertise and caution. By following the steps outlined above and using reputable security tools, you can help to ensure the effective removal of this malware and prevent future infections. It's essential to remain vigilant and proactive in maintaining your system's security, keeping your operating system, applications, and security software up-to-date, and avoiding suspicious downloads or links to minimize the risk of infection.
Analysis Report
General information
| Family Name: | Trojan.Agent.NBM |
|---|---|
| Signature status: | Hash Mismatch |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
da586f72971e8e4c7667510388aed738
SHA1:
3a76e2bfe7944e7fec7daf2d0eadb2b3ce3c7b30
SHA256:
3496BCC656C8D8157E344A367BFB75B3572CC6A150E035E761F3145C4333FBFC
File Size:
959.90 KB, 959904 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File is 32-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 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 |
|---|---|
| Company Name | Adobe Systems Incorporated |
| File Description | Adobe Reader and Acrobat Manager |
| File Version | 1.701.3.3014 |
| Internal Name | AdobeARM.exe |
| Original Filename | AdobeARM.exe |
| Product Name | Adobe Reader and Acrobat Manager |
| Product Version | 1.701.3.3014 |
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 |
|---|---|---|
| Adobe Systems, Incorporated | VeriSign Class 3 Public Primary Certification Authority - G5 | Hash Mismatch |
File Traits
- CryptUnprotectData
- HighEntropy
- 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: | 1,961 |
|---|---|
| Potentially Malicious Blocks: | 2 |
| Whitelisted Blocks: | 1,959 |
| 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.- Agent.NBM
- Agent.NBW
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\adobearm.log | 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 |
|---|---|
| Other Suspicious |
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