Trojan.MSIL.Krypt.YAEC
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: | 185 |
| First Seen: | November 27, 2023 |
| Last Seen: | April 13, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Krypt.YAEC indicates that your system has been compromised by a potentially malicious program. This type of threat is designed to infiltrate and damage your computer, often without your knowledge or consent. It's essential to understand the nature of this threat and take immediate action to remove it and protect your system from further harm.
Table of Contents
What Is Trojan.MSIL.Krypt.YAEC?
Trojan.MSIL.Krypt.YAEC is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate programs. The name "Trojan.MSIL.Krypt.YAEC" suggests that it may be related to encryption or cryptography, but without more specific information, it's difficult to determine its exact purpose or behavior. Trojans can be used for a variety of malicious activities, including data theft, system compromise, and unauthorized access.
How Trojan.MSIL.Krypt.YAEC Operates
Trojans like Trojan.MSIL.Krypt.YAEC typically operate by exploiting vulnerabilities in software or human behavior. They may be spread through infected email attachments, compromised websites, or infected software downloads. Once installed, the Trojan can execute a range of malicious activities, including installing additional malware, stealing sensitive information, or providing unauthorized access to the infected system. The exact behavior of Trojan.MSIL.Krypt.YAEC is unknown, but it's likely that it follows a similar pattern.
Symptoms of Infection
Systems infected with Trojan.MSIL.Krypt.YAEC may exhibit a range of symptoms, including slow system performance, unexpected crashes, or unusual network activity. You may also notice unfamiliar programs or icons on your system, or receive unexpected pop-ups or alerts. In some cases, the infection may be asymptomatic, making it difficult to detect without the use of specialized security software.
- Unexplained changes to system settings or configuration
- Unusual or suspicious network activity
- Slow system performance or crashes
- Unfamiliar programs or icons on your system
How to Remove Trojan.MSIL.Krypt.YAEC
- Boot your system in Safe Mode with Networking to prevent the Trojan from loading and to allow for easier removal.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any associated malware or infections.
- Uninstall any suspicious programs or applications that may be related to 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 perform a follow-up scan to ensure that the infection has been fully removed.
Conclusion
The detection of Trojan.MSIL.Krypt.YAEC is a serious issue that requires immediate attention. By understanding the nature of this threat and following the removal steps outlined above, you can help protect your system from further harm and prevent the potential consequences of a malicious infection. It's essential to remain vigilant and proactive in maintaining the security and integrity of your system, and to use reputable security software to detect and remove any potential threats.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.YAEC |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
88bf3cad5ae75bb386c50f8ea41f5a37
SHA1:
632345c54a2c7f50586b60093efe312d55d40b9a
SHA256:
5D8B07A46E7166839837669B1E44E6DC860B7D30530321E536084AB6C57FF65C
File Size:
892.42 KB, 892416 bytes
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MD5:
9e30a21810c95187dc1ab9d80955917d
SHA1:
22da5c1a0a64a630c3f6f27613d5d83727eaca18
SHA256:
0C2F7E9D599CEF7238A6148F37D6243F36CD746CA8AC09DE87144B6DC07512E5
File Size:
6.42 MB, 6423552 bytes
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MD5:
8c84d6b92617c7ebf98c93e253b23057
SHA1:
54ebaec5420a004e5078a9f7c4a952c62069de9d
SHA256:
0842EE6CEDEF0922D60F6543F423CEDAA29F1A74727052178AE0A038508F7AE6
File Size:
8.49 MB, 8489472 bytes
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MD5:
802bb86bcb7be71e92c60d4260dbc099
SHA1:
f47afdfab138b3a75a41f2f57062f37399df1fee
SHA256:
CAE8190D14902F28C09083BC14C0FD032779FB144F2EDBD8F182FF7C8EE66E1B
File Size:
87.04 KB, 87040 bytes
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MD5:
1201619f1922038447f0ba7592438274
SHA1:
0cb312b0ee7e1eafdf82c88700b28e4da7d41859
SHA256:
39D0B8E7C4B62E9F9F0094EDA6BBCFBA29B590F584841C7EC1DB281C01268664
File Size:
571.00 KB, 571004 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 relocations information
- File doesn't have security information
- File is .NET application
- File is 32-bit executable
- File is 64-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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- 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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| Comments | Regedit HeadTrick OB50 |
| Company Name |
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| File Description |
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| File Version |
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| Internal Name |
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| Legal Copyright |
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| Original Filename |
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| Product Name |
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| Product Version |
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File Traits
- .NET
- 2+ executable sections
- Goliath
- HighEntropy
- Reactor
- RijndaelManaged
- Run
- SmartAssembly
- x64
- x86
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- Yano
- ZYXDN
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\roaming\systweak\systweak data recovery\systweakdatarecovery.txt | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\roaming\systweak\systweak data recovery\systweakdatarecovery.txt | Generic Write,Read Attributes |
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 |
|---|---|---|
| HKCU\software\systweak\systweak data recovery::autoscan | 1 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::autoupdate | 1 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::autolaunch | 1 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::scancompressedfile | 1 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::exitonclose | 1 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::langpref | 3 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::autosendlogs | 0 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::autotraynags | 0 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::promonags | 0 | RegNtPreCreateKey |
| HKCU\software\systweak\systweak data recovery::autoupdateweekly | 0 | 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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| User Data Access |
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| Encryption Used |
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| Anti Debug |
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| Network Winsock2 |
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| Network Winsock |
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| Other Suspicious |
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