Trojan.Remus.B
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) |
| First Seen: | October 20, 2026 |
| Last Seen: | October 22, 2026 |
Trojan.Remus.B is a dangerous Trojan horse infection rated at a severe danger level of 8 out of 10. First observed on October 20, 2026, and seen as recently as October 22, 2026, this threat has already been flagged by detection systems multiple times, indicating it is actively circulating. Like most Trojans, Remus.B is designed to disguise itself as legitimate or harmless software while secretly carrying out malicious operations behind the scenes.
Table of Contents
What Trojan.Remus.B Does
Once active on a system, Trojan.Remus.B installs itself stealthily and runs silently in the background, avoiding obvious signs of its presence. Its core purpose is to give remote attackers the ability to gain complete control over an infected machine. With this level of access, the Trojan may covertly delete files, install additional malware onto the compromised system, and steal sensitive passwords and other personal information. The malware is built as a 64-bit native Windows application written in Go, and it interacts with low-level system functions such as writing files, managing memory, creating synchronization objects, and querying process information—capabilities that are consistent with a threat designed to manipulate the infected system at a deep level while trying to stay hidden from the user.
Notably, the file associated with this Trojan is self-signed rather than verified by a trusted certificate authority, a common trick used by malware authors to make their files appear more legitimate at a glance while avoiding the scrutiny that comes with properly validated software.
How It Usually Gets Onto Computers
Trojan.Remus.B typically spreads by exploiting system vulnerabilities and security flaws. It is also commonly distributed through software downloads from malicious or compromised websites, as well as through email attachments sent from untrusted or unknown sources. These attachments can take many forms, including files disguised with extensions such as .exe, .pif, .avi, and even seemingly harmless .jpg image files. Users who download pirated software, click on suspicious links, or open unexpected email attachments are at a significantly higher risk of encountering this threat.
Risks for the User
The risks posed by Trojan.Remus.B are severe. Because it can grant attackers complete remote control over an infected computer, victims may face identity theft through stolen passwords and personal data, financial loss, unauthorized access to private files, and the installation of further malicious software. The silent, background nature of its operation means significant damage can occur before a user even realizes something is wrong.
Signs of Infection
Because Trojan.Remus.B is designed to run quietly and avoid detection, it may not produce obvious symptoms. However, users should watch for warning signs typical of this type of threat, such as unexpected system slowdowns, unusual network activity, unfamiliar processes running in the background, files disappearing without explanation, or unexpected new programs appearing on the system.
How to Stay Protected
To reduce the risk of infection, users should avoid downloading software from untrusted or unofficial websites, refrain from opening email attachments from unknown senders, and keep their operating system and all installed software fully updated to patch known vulnerabilities. Maintaining regular backups of important files, exercising caution with unsolicited links and downloads, and using reputable security software to scan and monitor the system are also essential steps in defending against Trojans like Remus.B.
Analysis Report
General information
| Family Name: | Trojan.Remus.B |
|---|---|
| Signature status: | Self Signed |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
ddd694b6a95c1c72fff5e4f82f407a90
SHA1:
e8704d279f5f3c23129fddf4664d4d45be106130
SHA256:
BBF1C625B7D042549D516DE6470FF01519A4EEE131305A6827DAE07E944C33E6
File Size:
3.18 MB, 3184504 bytes
|
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 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)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
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 |
|---|---|---|
| Frost Pulse | Frost Pulse | Self Signed |
File Traits
- golang
- No Version Info
- 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: | 7,752 |
|---|---|
| Potentially Malicious Blocks: | 2,760 |
| Whitelisted Blocks: | 4,945 |
| Unknown Blocks: | 47 |
Visual Map
... Data truncated? - 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.- Remus.B
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 |
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