Trojan.MSIL.Krypt.YAGR
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.
| Popularity Rank: | 13,599 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 45 |
| First Seen: | December 24, 2024 |
| Last Seen: | July 18, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Krypt.YAGR on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive overview of the threat, its operational mechanics, symptoms of infection, and most importantly, steps to remove it from your system. Understanding the nature of Trojan.MSIL.Krypt.YAGR is crucial in mitigating its impact and securing your computer against future infections.
Table of Contents
What Is Trojan.MSIL.Krypt.YAGR?
Trojan.MSIL.Krypt.YAGR is identified as a Trojan-type threat, which means it is a malicious program designed to allow unauthorized access to a computer system. The name itself suggests it may involve encryption or cryptographic techniques, possibly for malicious purposes such as data theft or ransom demands. Trojans are known for their ability to disguise themselves as legitimate software, making them difficult to detect without proper security measures in place.
How Trojan.MSIL.Krypt.YAGR Operates
Trojan.MSIL.Krypt.YAGR, like other Trojans, operates by exploiting vulnerabilities in the system or deceiving users into installing it. Once installed, it can perform a variety of malicious actions, including but not limited to, stealing sensitive information, installing additional malware, or providing backdoor access to the attackers. The specific operations of Trojan.MSIL.Krypt.YAGR can vary, but its primary goal is to compromise the security and integrity of the infected system.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common signs include unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs and icons appearing on the desktop. Additionally, users may notice that their personal files have been encrypted or that they are being asked for ransom in exchange for the decryption key. It's also possible for the system to behave normally, making the infection difficult to detect without regular security scans.
How to Remove Trojan.MSIL.Krypt.YAGR
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This will also prevent any non-essential programs from running, making it easier to target the malware.
- Perform a full scan of your system using a reputable anti-malware tool such as SpyHunter. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing Trojan.MSIL.Krypt.YAGR.
- Uninstall any suspicious programs that were installed around the time the infection was detected. Be cautious and only remove programs you are certain are malicious or unnecessary.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings that the Trojan may have altered.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure that all components of the Trojan have been removed. Repeat this process until no threats are detected.
Conclusion
Removing Trojan.MSIL.Krypt.YAGR requires a combination of technical knowledge and the right tools. By following the steps outlined in this report, you should be able to eliminate the threat from your system. However, prevention is the best defense against malware infections. Regularly updating your operating system and software, using strong, unique passwords, and being cautious with emails and downloads can significantly reduce the risk of future infections. Stay vigilant and ensure your security software is always up to date to protect against evolving threats like Trojan.MSIL.Krypt.YAGR.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.YAGR |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
1851dc48b25b34d01dce54dd74e1a7f0
SHA1:
ba240969db2c865063a75f8186f2fc83860d52ae
SHA256:
A21EA3BE11DAB8FF00566411BCA41EA6C635AC29ED71BCA8274DA560387701C9
File Size:
237.57 KB, 237568 bytes
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MD5:
7c968b3c5b474607fe2ba1d998d2e68b
SHA1:
7def8f6562006e1e6ba46c4cf6a315fc1e5a5c84
SHA256:
F7927714DDEFA45C1DCE30F54E1E9DD405BC4DF8ED2B6717F85B65C36F82E6DB
File Size:
238.08 KB, 238080 bytes
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MD5:
52ed58414c9385c1419d25ce8e7c7470
SHA1:
10347954b28abd70b310394568a9f866c572ce17
SHA256:
ACF2CCDC79812724088FABA738E2C5C7E90F1A123A4F5768049598294386CB6F
File Size:
767.49 KB, 767488 bytes
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MD5:
e11050ad2344966429e9a3e1f2de7f01
SHA1:
bf19623702c28c8dcc8d2427af5fdb8f280b8123
SHA256:
1A439B3701F1C48F1F437238CAE021D0B8511A3D3EE91A24D50D91A413BE31CF
File Size:
260.10 KB, 260096 bytes
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MD5:
afc7e7ba33fba55805881d5dab525240
SHA1:
5bc8bab48f8e79c15f284f738b9eb016746ce8b6
SHA256:
771FF1A6C26C0D685708D42E1944F1E71769A353E67FD9C7A27452F1FFB6914A
File Size:
232.96 KB, 232960 bytes
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MD5:
889fb295e41ba717b142e0550177d28d
SHA1:
45ebf61a87178b34bcdfcd0b357dc8c056de4148
SHA256:
7EB8ABBE117E5387B888F951FD617F1C89A2F242064C0A4068EDB067FBFF8431
File Size:
3.09 MB, 3090343 bytes
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MD5:
af74393459340f474dcf388e99578731
SHA1:
b5aff129e5d0ac5d50eefbee0d6927cd94b48739
SHA256:
763A17480F0161745104ECA863584F2B09594EF8A3AC8FD79F306D1A90ED38F1
File Size:
239.62 KB, 239616 bytes
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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 has exports table
- File has TLS information
- File is .NET application
- File is 32-bit executable
- File is 64-bit executable
- File is either console or GUI application
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- 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)
- 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.
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 |
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| Company Name | Microsoft Corporation |
| File Description | Usermode Font Driver Host |
| File Version |
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| Internal Name |
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| Legal Copyright | © Microsoft Corporation. All rights reserved. |
| Original Filename |
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| Product Name | Microsoft® Windows® Operating System |
| Product Version |
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File Traits
- .NET
- HighEntropy
- NewLateBinding
- ntdll
- 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: | 731 |
|---|---|
| Potentially Malicious Blocks: | 162 |
| Whitelisted Blocks: | 565 |
| 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.Agent.GDSE
- MSIL.Agent.KS
- MSIL.Agent.XO
- MSIL.AgentTesla.AH
- MSIL.Krypt.YAGO
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- MSIL.Krypt.YAGR
- MSIL.Krypt.YAGT
- MSIL.Krypt.YAGV
- Tedy.L
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 |
|---|---|---|
| HKLM\software\microsoft\tracing\rasapi32::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::enableautofiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::enableconsoletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::consoletracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::maxfilesize | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasapi32::filedirectory | %windir%\tracing | RegNtPreCreateKey |
| HKLM\software\microsoft\tracing\rasmancs::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::enableautofiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::enableconsoletracing | RegNtPreCreateKey |
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| HKLM\software\microsoft\tracing\rasmancs::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::consoletracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::maxfilesize | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\rasmancs::filedirectory | %windir%\tracing | 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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2 additional items are not displayed above. |
| User Data Access |
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| Other Suspicious |
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| Anti Debug |
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| Process Manipulation Evasion |
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| Network Winsock2 |
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| Network Winsock |
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| Network Winhttp |
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| Network Info Queried |
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