Trojan.MSIL.Downloader.Agent.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: | 608 |
| First Seen: | March 30, 2021 |
| Last Seen: | December 27, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Downloader.Agent.A indicates that your system has been compromised by a potentially malicious program. This type of threat is designed to download and install additional malware onto your computer, which can lead to a range of problems, including data theft, system crashes, and unauthorized access to your personal information. It is essential to take immediate action to remove this threat and prevent further damage to your system.
Table of Contents
What Is Trojan.MSIL.Downloader.Agent.A?
Trojan.MSIL.Downloader.Agent.A is a type of Trojan horse malware that is designed to download and install additional malware onto your computer. The name "Trojan.MSIL" suggests that this malware is written in Microsoft Intermediate Language (MSIL), which is a programming language used by the .NET Framework. The "Downloader" part of the name indicates that this malware is capable of downloading additional files from the internet, whileAgent.Amay refer to a specific variant or component of the malware.
How Trojan.MSIL.Downloader.Agent.A Operates
Trojan.MSIL.Downloader.Agent.A operates by exploiting vulnerabilities in your system or tricking you into installing it. Once installed, it can download and install additional malware, including viruses, spyware, and adware. This malware can also modify your system settings, steal your personal data, and disrupt your internet connection. It may also attempt to contact its command and control server to receive updates or send stolen data back to the malware authors.
Symptoms of Infection
The symptoms of a Trojan.MSIL.Downloader.Agent.A infection can vary, but common signs include slow system performance, unexpected pop-ups or ads, and unfamiliar programs or icons on your desktop. You may also notice that your internet connection is slower than usual or that your system is crashing frequently. In some cases, you may not notice any symptoms at all, which is why it's essential to run regular virus scans and keep your antivirus software up to date.
- Slow system performance
- Unexpected pop-ups or ads
- Unfamiliar programs or icons on your desktop
- Slow internet connection
- Frequent system crashes
How to Remove Trojan.MSIL.Downloader.Agent.A
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
- Download and install a reputable antivirus tool, such as SpyHunter, and run a full scan of your system to detect and remove the malware.
- Uninstall any suspicious programs or applications that you don't recognize or that were installed around the time of the infection.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your system and run another scan to ensure that the malware has been completely removed.
Conclusion
Removing Trojan.MSIL.Downloader.Agent.A from your system requires careful attention to detail and a thorough understanding of how the malware operates. By following the steps outlined above, you can help to ensure that your system is clean and free of malware. It's also essential to take steps to prevent future infections, including keeping your antivirus software up to date, avoiding suspicious downloads and email attachments, and using strong passwords and enabling two-factor authentication whenever possible. By staying vigilant and taking proactive steps to protect your system, you can help to keep your personal data and computer safe from harm.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Downloader.Agent.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
3bd000d3c7cc6781bbb6ae6478c92236
SHA1:
cd59648b3987487832a34af706d68e84886165b9
SHA256:
FDFC76DE879C7C377CE2E0FC97DF882A212771B8E5B2E3336AD94EBC7D636C92
File Size:
197.59 KB, 197592 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 security information
- File is .NET application
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Assembly Version | 1.0.0.0 |
| Comments | Modified by an unpaid evaluation copy of Resource Tuner 2 (www.heaventools.com) |
| File Description | Register |
| File Version | 1.0.0.0 |
| Internal Name | Register Me.exe |
| Legal Copyright | Copyright © Microsoft 2014 |
| Original Filename | Register Me.exe |
| Product Name | Register |
| Product Version | 1.0.0.0 |
File Traits
- .NET
- .sdata
- HighEntropy
- Reactor
- RijndaelManaged
- 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: | 202 |
|---|---|
| Potentially Malicious Blocks: | 108 |
| Whitelisted Blocks: | 94 |
| 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.- MSIL.Downloader.Agent.A
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 |
|---|---|
| User Data Access |
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| Encryption Used |
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| Anti Debug |
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