Trojan.Agent.HFK
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: | 2 |
| First Seen: | November 15, 2025 |
| Last Seen: | April 4, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Agent.HFK 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. The primary concern with Trojans is their ability to allow unauthorized access to your computer, potentially leading to the theft of personal data, disruption of system operation, or further malware installation.
Table of Contents
What Is Trojan.Agent.HFK?
Trojan.Agent.HFK, as detected, suggests it is a variant of Trojan-type malware. The specifics of its operation and goals can vary, but its core function is to infiltrate a system without being detected and then perform malicious activities. The name itself does not directly indicate a specific malware family but rather categorizes it based on its behavior and characteristics.
How Trojan.Agent.HFK Operates
Trojan.Agent.HFK, like other Trojans, operates by deceiving users into installing it on their systems. This can happen through various means, such as downloading software from untrusted sources, opening malicious email attachments, or visiting compromised websites. Once installed, it can create backdoors, allowing remote access to the system, steal sensitive information, or install additional malware.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately noticeable. However, common indicators include unusual system behavior, such as unexpected pop-ups, slow system performance, or programs launching without user initiation. Sometimes, the presence of a Trojan might only be discovered during a system scan with security software or when the malware's activities trigger security alerts.
- Unexplained changes in system settings or files.
- Increased network activity without a clear cause.
- Appearance of unfamiliar programs or icons.
How to Remove Trojan.Agent.HFK
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and remove any detected threats.
- Manually uninstall any recently installed or suspicious programs from your system's control panel.
- Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure all threats have been removed.
Conclusion
Removing Trojan.Agent.HFK requires careful steps to ensure the malware is completely eradicated from your system. It's crucial to act promptly to prevent further damage or data theft. After removal, consider taking preventive measures such as keeping your operating system and software up to date, being cautious with email attachments and downloads, and regularly scanning your system for malware to protect against future infections.
Analysis Report
General information
| Family Name: | Trojan.Agent.HFK |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
d804b844691c5d23f1d4cd00049f3ad5
SHA1:
93cd1a3f1b7b925e472fe596f9ef446a5f456e0b
SHA256:
3DF4BCFD7E83942C18EA2A4BC44936A2FF0111BCAA69849CE08777E7E76E50C0
File Size:
48.13 KB, 48133 bytes
|
|
MD5:
c477b15f5b9126f9432cb4f574bbb3b0
SHA1:
85ba931aeaac0bc7b21e37c1fa3fc06d6062110a
SHA256:
A68DEBCBB89456EB41ABBA6C9732CC67DEDA5E975B2A0CC0C23D9CD4594E6B07
File Size:
48.14 KB, 48143 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 relocations information
- File doesn't have resources
- File doesn't have security information
- 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)
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- 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
- 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: | 121 |
|---|---|
| Potentially Malicious Blocks: | 108 |
| Whitelisted Blocks: | 13 |
| 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.HFK
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 |
|---|---|
| \device\namedpipe\local\mojo.6360.8812.7817453059033335160 | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
| \device\namedpipe\local\mojo.7572.4244.16398808438417159389 | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
| c:\users\user\downloads\35syx04x3sity4.exe | Generic Write,Read Attributes |
| c:\users\user\downloads\3r8x1gr0pkdyhvlo.xh5hh | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\3r8x1gr0pkdyhvlo.xh5hh | Synchronize,Write Data |
| c:\users\user\downloads\6v8qabq6pbuxc.6ux | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\6v8qabq6pbuxc.6ux | Synchronize,Write Data |
| c:\users\user\downloads\85ba931aeaac0bc7b21e37c1fa3fc06d6062110a_0000048143 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\93cd1a3f1b7b925e472fe596f9ef446a5f456e0b_0000048133 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\asqfq7flxteg.exe | Generic Write,Read Attributes |
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| c:\users\user\downloads\au7r1xzsmw8l0i.jvtk | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\au7r1xzsmw8l0i.jvtk | Synchronize,Write Data |
| c:\users\user\downloads\bdhjiv2blc4aiqp.ugfg | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\bdhjiv2blc4aiqp.ugfg | Synchronize,Write Data |
| c:\users\user\downloads\fmv1gzpgix.jc3wnl | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\fmv1gzpgix.jc3wnl | Synchronize,Write Data |
| c:\users\user\downloads\hkjcvchiykpf3.ldm2i | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\hkjcvchiykpf3.ldm2i | Synchronize,Write Data |
| c:\users\user\downloads\hzrdu09ym.og3 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\hzrdu09ym.og3 | Synchronize,Write Data |
| c:\users\user\downloads\lrt4pu9li9.jyl | Synchronize,Write Data |
| c:\users\user\downloads\unn4mdvm8grz.xq4t | Synchronize,Write Data |
| c:\users\user\downloads\vgux4fxgc2flf.vze | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\downloads\vgux4fxgc2flf.vze | Synchronize,Write Data |
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 |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | 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 |
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30 additional items are not displayed above. |
| Process Manipulation Evasion |
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