Trojan.Agent.HJD
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: | 14 |
| First Seen: | October 16, 2024 |
| Last Seen: | October 11, 2026 |
| OS(es) Affected: | Windows |
Trojan.Agent.HJD is a detection name used to identify a trojan horse—a type of malicious software that disguises itself as something legitimate in order to infiltrate a computer and carry out harmful activities without the user's knowledge. Like other threats in the broad "Agent" detection family, Trojan.Agent.HJD is typically used by security tools to flag suspicious files that exhibit trojan-like behavior, even when the exact origin, author, or full capabilities of the specific sample are not always fully documented. Because detailed technical specifics about this particular variant are not publicly confirmed, the information below describes the typical behavior associated with threats in this category.
Table of Contents
What This Threat Does
Trojans such as Trojan.Agent.HJD are generally designed to run quietly in the background while performing actions that benefit cybercriminals rather than the computer's owner. Depending on the specific build, this can include collecting information from the infected system, modifying system settings, downloading and installing additional malicious components, or granting remote attackers unauthorized access to the machine. Many trojans in this category are also capable of disabling or interfering with security software, making it harder for victims to detect and remove the infection.
How It Usually Gets Onto Computers
Trojans like this one typically spread through deceptive methods rather than self-replication. Common infection vectors include malicious email attachments, fake software updates, cracked or pirated software, bundled downloads from untrustworthy websites, malicious advertisements, and links shared through social engineering tactics. Once a user is tricked into opening or executing the infected file, the trojan installs itself and may begin its malicious routine immediately or wait for specific triggers before activating.
Risks for the User
Infections of this type can expose users to a range of serious risks. These may include theft of sensitive information such as login credentials, financial data, or personal files; degraded system performance due to background malicious processes; installation of additional malware, including ransomware, spyware, or adware; and unauthorized remote control of the infected device. In some cases, trojans serve as a foothold for larger attacks, allowing cybercriminals to pivot further into a home or business network.
Signs of Infection
Because trojans are built to operate stealthily, they do not always produce obvious symptoms. However, users may notice warning signs such as unexpected slowdowns, unusual network activity, unfamiliar processes running in the background, changes to browser or system settings that were not made by the user, security software being disabled unexpectedly, or new unfamiliar programs appearing on the system. Frequent crashes or unusual pop-ups can also indicate the presence of malware.
How to Stay Protected
To reduce the risk of encountering threats like Trojan.Agent.HJD, users should avoid downloading software from unofficial or unverified sources, be cautious with email attachments and links from unknown senders, and keep their operating system and applications updated with the latest security patches. Running reputable security software and keeping it updated is strongly recommended, as is performing regular system scans. Creating regular backups of important files can also help minimize damage if an infection does occur. Practicing cautious browsing habits and avoiding pirated software remain among the most effective ways to prevent trojan infections in general.
Analysis Report
General information
| Family Name: | Trojan.Agent.HJD |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
baf568fd77cf967038981d415ebad8c9
SHA1:
ae368d7ea0b7560ebf96848335775844dc3b28f2
SHA256:
77D5C649550BCC758E7A394DD348371AA0E64703AA74F6254D7BC00AA9963A1C
File Size:
566.27 KB, 566272 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have resources
- File doesn't have security information
- File has exports table
- File is 64-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
- File is not packed
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- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- dll
- ntdll
- 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: | 3,679 |
|---|---|
| Potentially Malicious Blocks: | 4 |
| Whitelisted Blocks: | 3,652 |
| Unknown Blocks: | 23 |
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.BTA
- Agent.FD
- Agent.HJD
- Bitcoinminer.FDO
- HackAgent.XF
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- Trojan.Downloader.Gen.DN
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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