Trojan.Agent.UISA
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 24, 2026 |
| Last Seen: | April 16, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Agent.UISA on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and it's essential to understand its nature and take steps to remove it.
Table of Contents
What Is Trojan.Agent.UISA?
Trojan.Agent.UISA is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate programs. The name "Trojan" refers to the malware's ability to infiltrate a system by hiding within or masquerading as a harmless application. The ".Agent" and ".UISA" suffixes may indicate specific characteristics or behaviors of the malware, but without further information, it's difficult to determine their exact significance.
How Trojan.Agent.UISA Operates
Trojan horse malware like Trojan.Agent.UISA typically operates by exploiting vulnerabilities in software or human psychology to gain unauthorized access to a system. Once inside, the malware can perform a variety of malicious activities, such as stealing sensitive information, installing additional malware, or providing a backdoor for remote access. The exact mechanisms used by Trojan.Agent.UISA are unknown, but it's likely that it uses common tactics like social engineering, drive-by downloads, or exploitation of software vulnerabilities.
Symptoms of Infection
The symptoms of a Trojan.Agent.UISA infection can vary widely, depending on the specific goals and behaviors of the malware. Common signs of infection include unusual system behavior, such as slow performance, crashes, or unexpected pop-ups. You may also notice unfamiliar programs or icons on your system, or receive warnings from your antivirus software. In some cases, the malware may operate stealthily, making it difficult to detect without specialized tools or expertise.
- Unexplained changes to system settings or configuration
- Appearance of unfamiliar programs or icons
- Slow system performance or crashes
- Unexpected pop-ups or warnings
- Unusual network activity or data transfers
How to Remove Trojan.Agent.UISA
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal.
- Use a reputable antivirus tool, such as SpyHunter, to perform a full scan of your system and detect any malware components.
- Uninstall any suspicious programs or applications that may be related to the malware.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings.
- Reboot your system and perform another scan with your antivirus tool to ensure that the malware has been fully removed.
Conclusion
Removing Trojan.Agent.UISA from your system requires careful attention to detail and a thorough understanding of the malware's behavior. By following the steps outlined above and using reputable antivirus tools, you can help to ensure the security and integrity of your system. It's essential to remain vigilant and take proactive steps to prevent future infections, such as keeping your software up to date, avoiding suspicious downloads, and using strong antivirus protection.
Analysis Report
General information
| Family Name: | Trojan.Agent.UISA |
|---|---|
| Packers: | UPX |
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
c94ab642af5ac361461cd6fcdd715411
SHA1:
7575b43e551c25964f780ff1e0d8babce1d9bad7
SHA256:
90DD5817D9AFC0016BF0F836D2A0DA135B5F6C3DBDAF7E7B038E9B1AE600DDF3
File Size:
65.54 KB, 65536 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 security information
- File has been packed
- 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)
Show More
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
File Traits
- HighEntropy
- No Version Info
- packed
- 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: | 232 |
|---|---|
| Potentially Malicious Blocks: | 182 |
| Whitelisted Blocks: | 50 |
| 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.UISA
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 |
|---|---|
| Other Suspicious |
|
| Anti Debug |
|
| User Data Access |
|
