Trojan.HythLoader.A
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: | June 4, 2026 |
| Last Seen: | October 12, 2026 |
| OS(es) Affected: | Windows |
Trojan.HythLoader.A is a dangerous Windows-based Trojan loader that operates covertly on infected systems, giving attackers a foothold from which to deploy additional malicious payloads. With a danger level rated 8 out of 10, this threat is designed to quietly establish itself, avoid detection, and open the door to further compromise of a victim's computer.
Table of Contents
What Trojan.HythLoader.A Does
Once active, HythLoader.A runs silently in the background without displaying any visible signs to the user. As a loader-type Trojan, its primary purpose is typically to act as a delivery mechanism for other malicious software, though it is also capable of performing harmful actions on its own. Analysis of its behavior shows that it interacts directly with system memory, using functions such as reading and writing to other processes' memory space and querying process information. This type of memory manipulation is often associated with injecting code into legitimate running processes in order to hide malicious activity and evade security tools.
The Trojan has also been observed using keyboard-monitoring capabilities, a technique commonly linked to keystroke logging. This suggests HythLoader.A may be capable of capturing what a victim types, potentially including passwords, personal messages, and other sensitive information. Combined with its ability to modify files on the system, HythLoader.A can alter the compromised machine's configuration and behavior in ways that are difficult for an average user to notice.
Like other Trojans in its category, HythLoader.A may allow attackers to gain extensive control over the infected system, potentially enabling them to delete files, install additional malware, change system settings, or monitor the victim's activity remotely.
How It Usually Gets Onto Computers
HythLoader.A typically spreads through the same channels common to this category of Trojans. It is often delivered by exploiting unpatched system vulnerabilities and security flaws, allowing it to install itself without obvious user interaction. It can also be bundled with software downloaded from untrustworthy or malicious websites, or arrive as an email attachment from unknown or unverified senders. These attachments are frequently disguised with familiar-looking file extensions, such as .exe, .pif, .avi, or even .jpg, to trick users into opening them.
Risks for the User
Because HythLoader.A can run with significant control over the infected machine, the risks to users are considerable. Potential consequences include theft of sensitive data such as login credentials, unauthorized monitoring of keyboard activity, unwanted changes to system files and settings, and the silent installation of further malware. In more severe cases, attackers could achieve near-complete control over the compromised device, using it for additional malicious purposes without the owner's knowledge.
Signs of Infection
Trojans like HythLoader.A are built to avoid detection, so visible symptoms may be subtle or absent. Users should watch for unexplained system slowdowns, unfamiliar processes running in the background, unexpected changes to files or settings, unusual network activity, or security software being disabled unexpectedly.
How to Stay Protected
To reduce the risk of infection, users should keep their operating system and all installed software fully updated to close known security vulnerabilities. Avoid downloading programs from untrusted or unofficial websites, and never open email attachments from unknown or suspicious senders, especially executable files. Running reputable, up-to-date security software and performing regular system scans can help detect and remove threats like HythLoader.A before they cause significant damage. Maintaining regular backups of important data also helps limit the impact of any successful infection.
Analysis Report
General information
| Family Name: | Trojan.HythLoader.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
928c247f3f9eb2d3af39fadfe5ac4482
SHA1:
4342e73aed3f06772581c772c7688851ebef6398
SHA256:
D666C445311C97789C67A16E71A68A748532B9A8C1EBB48F92DA95B63637C632
File Size:
5.13 MB, 5126144 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have security information
- File has TLS 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)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
Show More
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- fptable
- imgui
- No Version Info
- VirtualQueryEx
- 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: | 3,082 |
|---|---|
| Potentially Malicious Blocks: | 395 |
| Whitelisted Blocks: | 2,034 |
| Unknown Blocks: | 653 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
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
|
| Keyboard Access |
|
