Trojan.MSIL.Krypt.GEER
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: | 22,437 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 28 |
| First Seen: | January 31, 2022 |
| Last Seen: | April 23, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Krypt.GEER on your system indicates a potential security threat that requires immediate attention. Trojans are a type of malware designed to allow unauthorized access to a computer system, and this particular detection suggests that your system may be compromised. It is essential to understand the nature of this threat and take prompt action to remove it and prevent further damage.
Table of Contents
What Is Trojan.MSIL.Krypt.GEER?
Trojan.MSIL.Krypt.GEER is a type of Trojan horse malware that can infect a computer system without the user's knowledge or consent. The name itself does not directly indicate a specific malware family, but rather a detection category. Trojans are known for their ability to disguise themselves as legitimate software, making them difficult to detect. They can be used for various malicious purposes, including data theft, system compromise, and distribution of additional malware.
How Trojan.MSIL.Krypt.GEER Operates
Once a system is infected with Trojan.MSIL.Krypt.GEER, the malware can operate in various ways. It may attempt to connect to a command and control server to receive instructions from its creators, allowing them to control the infected system remotely. This can lead to unauthorized access to sensitive data, installation of additional malware, or use of the system for malicious activities such as spamming or DDoS attacks. The exact operation of Trojan.MSIL.Krypt.GEER can vary, but its primary goal is to compromise the security and integrity of the infected system.
Symptoms of Infection
Identifying a Trojan infection can be challenging, as these malware types are designed to remain stealthy. However, some common symptoms may indicate the presence of Trojan.MSIL.Krypt.GEER or similar malware. These include unexpected system crashes, slow performance, unfamiliar programs or icons, and unusual network activity. If you suspect that your system is infected, it is crucial to act quickly to minimize potential damage.
How to Remove Trojan.MSIL.Krypt.GEER
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the malware.
- Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time of the suspected infection.
- Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the malware.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure that all components of the malware have been removed.
Conclusion
The removal of Trojan.MSIL.Krypt.GEER requires careful and immediate action to prevent further system compromise. By following the steps outlined above and maintaining good security practices, such as keeping your operating system and software up to date, using strong antivirus protection, and being cautious with email attachments and downloads, you can help protect your system from similar threats in the future. Remember, vigilance and proactive security measures are key to safeguarding your digital environment.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.GEER |
|---|---|
| Signature status: | Self Signed |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
e3a2f24ee60fe37ffc856a181fb44d69
SHA1:
760a856c30911c204c8129bc7988bb19d81795c4
SHA256:
8252FD76F8941CCDC3ED4DC3C33CBF5C7D310A610C191499E447FC7BCCC451A3
File Size:
7.11 MB, 7107816 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- 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)
- 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 | 2.1.37.0 |
| Company Name | RepairTech, Inc. |
| File Description | Installer |
| File Version | 2.1.37.0 |
| Internal Name | Installer.exe |
| Legal Copyright | Copyright © 2018 |
| Original Filename | Installer.exe |
| Product Name | Kabuto |
| Product Version | 2.1.37.0 |
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| Servably, Inc. | Servably, Inc. | Self Signed |
File Traits
- .NET
- HighEntropy
- Installer Version
- 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: | 70 |
|---|---|
| Potentially Malicious Blocks: | 28 |
| Whitelisted Blocks: | 42 |
| 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.Krypt.GEER
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:\programdata\kabuto\logs\masterinstaller.log | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\kabuto.installer.exe | 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 |
|---|---|---|
| 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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1 additional items are not displayed above. |
| User Data Access |
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| Other Suspicious |
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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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| Anti Debug |
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