Trojan.MSIL.FakeMS.OA
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: | 31 |
| First Seen: | April 16, 2025 |
| Last Seen: | December 12, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.FakeMS.OA indicates that your system has been compromised by a potentially malicious threat. This type of threat is generally categorized as a Trojan, which is a broad term for malware that disguises itself as legitimate software. Trojans can cause a wide range of problems, from stealing sensitive information to disrupting system performance. Understanding the nature and behavior of Trojan.MSIL.FakeMS.OA is crucial for effective removal and prevention of future infections.
Table of Contents
What Is Trojan.MSIL.FakeMS.OA?
Trojan.MSIL.FakeMS.OA is identified as a Trojan-type threat, which means it is designed to deceive users into installing it by masquerading as useful software. The name itself does not directly indicate a specific malware family but suggests it may mimic or interfere with Microsoft (MS) products or services, possibly leveraging the .NET framework (MSIL stands for Microsoft Intermediate Language). Trojans like Trojan.MSIL.FakeMS.OA can be particularly dangerous because they often require user interaction to activate, making them seem less suspicious at first glance.
How Trojan.MSIL.FakeMS.OA Operates
Once installed, Trojan.MSIL.FakeMS.OA can operate in various ways, depending on its intended purpose. Some common behaviors of Trojans include data theft (such as login credentials, personal data, or financial information), installation of additional malware, modification of system settings, or even complete system compromise for use in botnets. They can also create backdoors, allowing remote access to the infected system. The specific operations of Trojan.MSIL.FakeMS.OA would depend on the goals of its creators, which could range from financial gain to espionage or disruption of service.
Symptoms of Infection
Symptoms of a Trojan.MSIL.FakeMS.OA infection can vary widely but may include unusual system behavior such as frequent crashes, slow performance, unexpected pop-ups, or unfamiliar programs running in the background. Users might also notice changes in their browser settings, such as a new homepage or unexpected toolbars. In some cases, the infection might not display obvious symptoms, making it harder to detect without proper security software.
How to Remove Trojan.MSIL.FakeMS.OA
- Boot your computer in Safe Mode with Networking. This will limit the malware's ability to run and interfere with the removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated to the latest version to increase the chances of detecting and removing Trojan.MSIL.FakeMS.OA.
- Uninstall any recently installed programs that seem suspicious or unfamiliar. Be cautious and only remove programs you are certain are not needed.
- Reset your web browsers (Google Chrome, Mozilla Firefox, Microsoft Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure that the threat has been completely removed.
Conclusion
The removal of Trojan.MSIL.FakeMS.OA requires careful and methodical steps to ensure that all components of the malware are eliminated from the system. Preventing future infections involves a combination of using reputable security software, being cautious with email attachments and downloads, and keeping your operating system and software up to date. Regular system backups can also help mitigate the impact of a malware infection by allowing for a quick recovery of important data. By understanding the risks and taking proactive measures, users can significantly reduce the likelihood of falling victim to Trojan.MSIL.FakeMS.OA and other malware threats.
Analysis Report
General information
| Family Name: | Trojan.MSIL.FakeMS.OA |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
94d34fabb9f408508068239b44a8d7b0
SHA1:
bb1b1622e2ffea396d9600c69599d6d965b289a4
SHA256:
886265CDC392F1D23B68EE9E0B355F927084FF8AA4B75EA42A9CEB68AB604595
File Size:
24.06 KB, 24064 bytes
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MD5:
2464795317bd8cd73ab4be6d967ec3c8
SHA1:
52d3a719ee7e74d6d0677d2ebdb4cec6848e6091
SHA256:
BA6BD274E46F7B3A71932B8819E0D62643C30FB9FE279405A90246264B0552A6
File Size:
24.06 KB, 24064 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 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)
File Traits
- .NET
- NewLateBinding
- No Version Info
- ntdll
- 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: | 28 |
|---|---|
| Potentially Malicious Blocks: | 25 |
| Whitelisted Blocks: | 3 |
| 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.Bladabindi.A
- MSIL.FakeMS.OA
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\arma3 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\a7d4a2cf2ea79e6f72c68bd62dd0ca6b.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\a7d4a2cf2ea79e6f72c68bd62dd0ca6b.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\appdata\roaming\svhost.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
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::di | ! | RegNtPreCreateKey |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | �^ i xy kP~ �ރ ���� ��^ ۴� ��z }� � Vs} b kP~ b ��1 � �� ��� d B 0 F e � ��1 9 �� h �n� } e�� e�� | RegNtPreCreateKey |
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| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | Κ xy kP~ �ރ ���� ��^ ۴� }� Vs} kP~ ��1 o �� ��� d B F e �� ��1 Z �� h �n� } e�� e�� | RegNtPreCreateKey |
| HKCU\environment::see_mask_nozonechecks | 1 | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 쏛弇䳗ǜ | RegNtPreCreateKey |
| HKLM\software\wow6432node\microsoft\windows\currentversion\run::a7d4a2cf2ea79e6f72c68bd62dd0ca6b | "C:\Users\Seanudjs\AppData\Roaming\svhost.exe" .. | 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 |
|---|---|
| User Data Access |
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| Anti Debug |
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| Process Shell Execute |
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| Process Manipulation Evasion |
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| Syscall Use |
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| Network Winsock2 |
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| Service Control |
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| Encryption Used |
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| Process Terminate |
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| Keyboard Access |
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| Other Suspicious |
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| Network Winsock |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
(NULL) C:\Users\Rglxqaka\AppData\Roaming\arma3
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(NULL) C:\Users\Seanudjs\AppData\Roaming\svhost.exe
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netsh firewall add allowedprogram "C:\Users\Seanudjs\AppData\Roaming\svhost.exe" "svhost.exe" ENABLE
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