Trojan.Agent.KPSJ
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.
| Popularity Rank: | 17,289 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 8 |
| First Seen: | November 11, 2025 |
| Last Seen: | May 2, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Agent.KPSJ indicates that your system has been compromised by a potentially malicious program. This type of threat is generally classified as a Trojan, which is a broad category of malware that can perform a variety of harmful actions on an infected computer. The name Trojan.Agent.KPSJ itself does not specify a known malware family, but rather serves as a unique identifier for this particular threat.
Table of Contents
What Is Trojan.Agent.KPSJ?
Trojan.Agent.KPSJ is a type of malware that can infect a computer system without the user's knowledge or consent. It is designed to remain hidden and can be used to steal sensitive information, install additional malware, or provide unauthorized access to the infected system. Trojans like Trojan.Agent.KPSJ can be spread through various means, including infected software downloads, malicious email attachments, or exploited vulnerabilities in operating systems or applications.
How Trojan.Agent.KPSJ Operates
Once installed, Trojan.Agent.KPSJ can operate in various ways, depending on its intended purpose. It may attempt to communicate with its command and control servers to receive instructions or transmit stolen data. The malware can also install additional components or update itself to evade detection by security software. In some cases, Trojans can create backdoors, allowing remote access to the infected system, or download and install other types of malware, such as ransomware or spyware.
Symptoms of Infection
Systems infected with Trojan.Agent.KPSJ may exhibit a range of symptoms, including slow system performance, frequent crashes, or unusual network activity. Users may also notice unfamiliar programs or icons on their desktop, or receive unexpected pop-ups or alerts. However, some Trojans can operate without displaying any noticeable symptoms, making them difficult to detect without the use of specialized security software.
How to Remove Trojan.Agent.KPSJ
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for internet access. This will make it easier to download and install removal tools.
- Download and install a reputable anti-malware tool, such as SpyHunter, and perform a full scan of your system to detect and remove Trojan.Agent.KPSJ and any related components.
- Uninstall any suspicious programs that may have been installed without your knowledge or consent. Be cautious when removing programs, as some may be legitimate or required by your system.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings that may have been altered by the malware.
- Reboot your system and perform another full scan with your anti-malware tool to ensure that all components of Trojan.Agent.KPSJ have been removed and that your system is clean.
Conclusion
The removal of Trojan.Agent.KPSJ requires careful attention to detail and the use of reputable security software. By following the steps outlined above and maintaining good security practices, such as regularly updating your operating system and applications, using strong antivirus software, and being cautious when downloading and installing programs from the internet, you can help protect your system from future infections and ensure a safe and secure computing environment.
Analysis Report
General information
| Family Name: | Trojan.Agent.KPSJ |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
2084b25c16b8e90e41460f730f1f2a2f
SHA1:
f688038db9deb2dddd4c344a988d0bc453727807
SHA256:
ED2EBCAE0714811795B90FE1A2558288F8D031286AF097B746E2707C293E6BF1
File Size:
356.35 KB, 356352 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 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 Traits
- HighEntropy
- No Version Info
- 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: | 2,443 |
|---|---|
| Potentially Malicious Blocks: | 6 |
| Whitelisted Blocks: | 2,437 |
| 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.KPSJ
- Stealer.ACJ
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\roaming\microsoft\windows\start menu\programs\startup\update1.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\update2.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\update3.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\update4.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\update5.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\update6.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\updatedownloader.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\updates_notes.txt | Generic Write,Read Attributes |
| c:\users\user\downloads\update_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 |
|---|---|
| Network Winhttp |
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