Trojan.Agent.PU
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: | 1 |
| First Seen: | February 27, 2025 |
| Last Seen: | December 15, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.Agent.PU indicates that your system has been compromised by a potentially malicious program. 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 data theft, system disruption, and the installation of additional malware. It's essential to address this issue promptly to prevent further damage to your system and protect your sensitive information.
Table of Contents
What Is Trojan.Agent.PU?
Trojan.Agent.PU is a detection name assigned to a specific type of malware. The details of its operation and impact can vary, but it is classified as a Trojan-type threat, indicating its ability to infiltrate a system by masquerading as a legitimate program or file. Trojans are known for their versatility and can be designed to perform a wide range of malicious activities, from stealing personal data to exploiting system vulnerabilities for further malware distribution.
How Trojan.Agent.PU Operates
Like many Trojans, Trojan.Agent.PU likely operates by exploiting user trust or system vulnerabilities to gain access to a computer. Once inside, it can execute its payload, which might include actions like data theft, keylogging, or the installation of additional malicious software. The specific operations of Trojan.Agent.PU can depend on its intended purpose, which could range from financial fraud to the creation of a botnet for distributed attacks. Understanding the exact mechanisms of Trojan.Agent.PU requires detailed analysis, which may not be possible without specific telemetry data.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common indicators include unusual system behavior, such as slowed performance, frequent crashes, or the appearance of unwanted programs or toolbars in your web browser. Additionally, you might notice unauthorized changes to your system settings, unexpected pop-ups, or increased network activity without a clear cause. Recognizing these symptoms early can help in taking prompt action to mitigate the threat.
- Unexplained changes in system settings or files
- Appearance of unfamiliar programs or icons
- Increased network activity without a known cause
- Frequent system crashes or freezes
- Pop-ups or unwanted advertisements
How to Remove Trojan.Agent.PU
- Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to access the internet and other necessary tools while disabling most non-essential services.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated to the latest version to maximize its effectiveness against current threats.
- Uninstall suspicious programs that you do not recognize or that were installed without your consent. Be cautious and only remove programs you are certain are malicious or unnecessary.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings. This step can help remove any malicious extensions or settings changes made by the Trojan.
- Finally, reboot your system and perform another scan to ensure that the malware has been completely removed and that no additional threats are present.
Conclusion
The removal of Trojan.Agent.PU requires careful and systematic steps to ensure that all components of the malware are eliminated from your system. By following the outlined process and maintaining vigilance through regular system scans and safe computing practices, you can protect your system and data from similar threats in the future. Remember, prevention is key, so always be cautious when downloading software, opening email attachments, or clicking on links from unknown sources.
Analysis Report
General information
| Family Name: | Trojan.Agent.PU |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
e04f382b49a4c16c6a7df0c7092c1ba4
SHA1:
67e5c57f72c9c06b671788ee3c3d7aaa908e577d
SHA256:
16216F93BE8E5A74AA5BC53BE02E2074744BA9003296189EAB92F1CB90154059
File Size:
2.86 MB, 2863636 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 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
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- 2+ executable sections
- HighEntropy
- No Version Info
- 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: | 1 |
|---|---|
| Potentially Malicious Blocks: | 1 |
| Whitelisted Blocks: | 0 |
| 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.PU
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:\windows\system32\webview2loader.dll | Generic Write,Read Attributes |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\software\policies\microsoft\windows\appcompat::disablepca | RegNtPreCreateKey | |
| HKLM\software\policies\microsoft\windows\appcompat::disablepca | RegNtPreCreateKey | |
| HKLM\software\policies\microsoft\windows\appcompat::disablepca | RegNtPreCreateKey | |
| HKLM\software\policies\microsoft\windows\appcompat::disablepca | RegNtPreCreateKey |
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 |
Show More
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| Service Control |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Process Terminate |
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| Thread Create Remote |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\system32\printui.exe
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C:\WINDOWS\system32\printui.exe
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C:\WINDOWS\system32\printui.exe
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C:\WINDOWS\system32\printui.exe
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