Trojan.MSIL.Krypt.YAJ
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: | 4 |
| First Seen: | April 18, 2022 |
| Last Seen: | January 15, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Krypt.YAJ on your system indicates a potential security threat that requires immediate attention. Trojans are a type of malware that can cause significant harm to your computer and compromise your personal data. In this report, we will provide you with an overview of the threat, its operating methods, symptoms of infection, and steps to remove it from your system.
Table of Contents
What Is Trojan.MSIL.Krypt.YAJ?
Trojan.MSIL.Krypt.YAJ is a type of Trojan horse malware that can infect your system and allow unauthorized access to your computer. The name itself does not indicate a specific malware family, but rather a generic term used to describe a type of threat. Trojans can be used to steal sensitive information, install additional malware, or provide a backdoor for remote access to your system.
How Trojan.MSIL.Krypt.YAJ Operates
Trojans typically operate by disguising themselves as legitimate software or attachments. Once installed, they can create a backdoor on your system, allowing hackers to access your computer remotely. They can also be used to install additional malware, such as spyware or ransomware, which can further compromise your system. Trojans can be spread through various means, including email attachments, infected software downloads, or exploited vulnerabilities in your system or applications.
Symptoms of Infection
Symptoms of a Trojan infection can vary, but common signs include slow system performance, unexpected pop-ups or advertisements, and unfamiliar programs or icons on your desktop. You may also experience unexpected changes to your system settings, such as modified homepage or search engine settings. In some cases, you may not notice any symptoms at all, which is why regular system scans and monitoring are essential for detecting and removing malware.
How to Remove Trojan.MSIL.Krypt.YAJ
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full system scan and detect any malware or infected files.
- Uninstall any suspicious programs or applications that may be related to the Trojan infection.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any modified settings or extensions.
- Reboot your system and perform a follow-up scan to ensure that the malware has been completely removed.
Conclusion
Removing Trojan.MSIL.Krypt.YAJ from your system requires a combination of technical knowledge and the right tools. By following the steps outlined in this report, you can help ensure the removal of the malware and prevent future infections. It is essential to remain vigilant and take proactive measures to protect your system, such as regularly updating your operating system and applications, using strong antivirus software, and avoiding suspicious downloads or attachments. By taking these steps, you can help safeguard your personal data and prevent the spread of malware.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.YAJ |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a2401931616acb3242a3b29a0e3a3a9e
SHA1:
affdf1018737abae49a9c026f8af7d27ae5a2832
SHA256:
E849B3990173263C482C67E45233B304F88643E17DB57D82D76B14C239CA2B7E
File Size:
124.42 KB, 124416 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 .NET application
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI 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)
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 | 0.9.1.3 |
| File Description | Inveigh |
| File Version | 0.9.1.3 |
| Internal Name | Inveigh.exe |
| Legal Copyright | Copyright © 2020 |
| Original Filename | Inveigh.exe |
| Product Name | Inveigh |
| Product Version | 0.9.1.3 |
File Traits
- .NET
- 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: | 91 |
|---|---|
| Potentially Malicious Blocks: | 62 |
| Whitelisted Blocks: | 25 |
| Unknown Blocks: | 4 |
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.Krypt.YAJ
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\downloads\inveigh-log.txt | Generic Write,Read Attributes |
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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| User Data Access |
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| Network Info Queried |
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| Network Winsock2 |
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| Network Winsock |
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