Trojan.MSIL.FakeMS.F
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: | 17,471 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 34 |
| First Seen: | November 9, 2021 |
| Last Seen: | September 8, 2025 |
| OS(es) Affected: | Windows |
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.MSIL.FakeMS.F |
|---|---|
| Signature status: | Root Not Trusted |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
c4c3924ea7227465b46e762ffb56646f
SHA1:
4ad8b3c3c9c86b8d9fa3c92338c55c830d94e5f1
SHA256:
449D5454F2FEA66390DDC8101E96DC561D587F47ECB7F144E41B2D9EBC56A852
File Size:
7.29 MB, 7285448 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 is 32-bit executable
- File is either console or GUI application
- 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)
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- 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.
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 |
|---|---|---|
| SecureW2 | DigiCert Assured ID Root CA | Root Not Trusted |
| SecureW2 | DigiCert Assured ID Root CA | Root Not Trusted |
File Traits
- .NET
- Installer Version
- x86
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\local\temp\logo.png | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\logo.png | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsf4bbb.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete |
| c:\users\user\appdata\local\temp\nsv4bcc.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nsv4bcc.tmp\system.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nsv4bcc.tmp\system.dll | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\securew2.cloudconfig | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\securew2.cloudconfig | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\securew2_enterprise_client.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\securew2_enterprise_client.exe | Synchronize,Write Attributes |
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| c:\users\user\appdata\local\temp\securew2_joinnow.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\securew2_joinnow.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\vpn-setup-v1.6.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\securew2joinnow::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::enablefiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::enableautofiletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::enableconsoletracing | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::filetracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::consoletracingmask | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::maxfilesize | RegNtPreCreateKey | |
| HKLM\software\microsoft\tracing\securew2joinnow::filedirectory | %windir%\tracing | RegNtPreCreateKey |
| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\content::cacheprefix | RegNtPreCreateKey |
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| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\cookies::cacheprefix | Cookie: | RegNtPreCreateKey |
| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\history::cacheprefix | Visited: | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | \??\C:\Users\Mkbfetng\AppData\Local\Temp\nsv4BCC.tmp\ | 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 |
|---|---|
| Process Manipulation Evasion |
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| Process Shell Execute |
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| Syscall Use |
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| Network Wininet |
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| Network Urlomon |
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| Encryption Used |
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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.
C:\Users\Mkbfetng\AppData\Local\Temp\SecureW2_JoinNow.exe -install
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