Trojan.Downloader.Agent.FAB
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: | 10 |
| First Seen: | November 7, 2025 |
| Last Seen: | April 2, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Downloader.Agent.FAB indicates that your system has been compromised by a potentially malicious threat. 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 downloading and installing additional malware, stealing sensitive information, or providing unauthorized access to the infected system.
Table of Contents
What Is Trojan.Downloader.Agent.FAB?
Trojan.Downloader.Agent.FAB is a specific detection name given to a threat that exhibits characteristics of a Trojan-type malware. The name itself suggests that it has the capability to download additional components or malware, which can further compromise the security of the infected system. Without more specific information, it's challenging to pinpoint the exact nature or origin of this threat, but its categorization as a Trojan indicates it is designed to cause harm or exploit the system for malicious purposes.
How Trojan.Downloader.Agent.FAB Operates
Trojan-type malware, including Trojan.Downloader.Agent.FAB, typically operates by deceiving users into installing it on their systems. This can happen through various means, such as opening malicious email attachments, downloading software from untrusted sources, or visiting compromised websites. Once installed, the malware can initiate its designed functions, which may include downloading additional malware components, communicating with command and control servers, or stealing sensitive user data. The specific operations of Trojan.Downloader.Agent.FAB would depend on its programming and the intentions of its creators.
Symptoms of Infection
Systems infected with Trojan.Downloader.Agent.FAB or similar malware may exhibit a range of symptoms. These can include, but are not limited to, unexpected changes in system performance, such as slowdowns or increased crash frequency, appearance of unwanted programs or toolbars, suspicious network activity, or alerts from security software indicating the presence of malware. In some cases, the infection may not display obvious symptoms, making it difficult for users to detect the malware without the aid of security tools.
How to Remove Trojan.Downloader.Agent.FAB
- Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Conduct a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the malware.
- Uninstall any recently installed or suspicious programs that could be related to the malware.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings changes made by the malware.
- Reboot your system and perform another full scan with your anti-malware tool to ensure that all malware components have been removed and the system is clean.
Conclusion
The removal of Trojan.Downloader.Agent.FAB requires careful and thorough steps to ensure that all components of the malware are eliminated from the system. It's crucial for users to remain vigilant and take preventive measures to avoid future infections, such as keeping their operating system and software up to date, using strong antivirus protection, and practicing safe browsing habits. By understanding the nature of Trojan-type threats and how to mitigate them, users can significantly reduce the risk of their systems being compromised by malware like Trojan.Downloader.Agent.FAB.
Analysis Report
General information
| Family Name: | Trojan.Downloader.Agent.FAB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
198d318ee80f61bea885b62de6783d44
SHA1:
bf2944887222f11d77200a5f83af5e23412f0aba
SHA256:
071A1960FBD7114CA87D9DA138908722D7F1C02AF90EA2DB1963915FBE234C52
File Size:
2.67 MB, 2672184 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have 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)
- 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 | Sysinternals - www.sysinternals.com |
| File Description | BGInfo - Wallpaper text configurator |
| File Version | 4.33 |
| Internal Name | BGInfo |
| Legal Copyright | Copyright © 2000-2025 Mark Russinovich |
| Original Filename | BGInfo.exe |
| Product Name | BGInfo |
| Product Version | 4.33 |
File Traits
- 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: | 7,954 |
|---|---|
| Potentially Malicious Blocks: | 98 |
| Whitelisted Blocks: | 7,791 |
| Unknown Blocks: | 65 |
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.AIBB
- Agent.BNDB
- Kryptik.KABJ
- Marte.L
- Spy.Agent.XD
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