Backdoor.MSIL.Spy.Agent.TF
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: | 60 % (Medium) |
| Infected Computers: | 30 |
| First Seen: | June 25, 2023 |
| Last Seen: | December 18, 2025 |
| OS(es) Affected: | Windows |
The detection of Backdoor.MSIL.Spy.Agent.TF on your system indicates a potential security threat that requires immediate attention. This backdoor threat is designed to allow unauthorized access to your computer, which can lead to a range of serious consequences, including data theft, system compromise, and further malware infections. It is essential to understand the nature of this threat and take prompt action to remove it and secure your system.
Table of Contents
What Is Backdoor.MSIL.Spy.Agent.TF?
Backdoor.MSIL.Spy.Agent.TF is a type of malware that operates as a backdoor, allowing malicious actors to remotely access and control your computer. The name suggests it is written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic, object-oriented programming language used for developing .NET applications. This backdoor is likely designed to spy on the victim's activities, hence the "Spy" component in its name, and could be part of a broader campaign to gather sensitive information or disrupt system operations.
How Backdoor.MSIL.Spy.Agent.TF Operates
Backdoor threats like Backdoor.MSIL.Spy.Agent.TF typically operate by establishing a covert communication channel between the compromised computer and a command and control (C2) server controlled by the attackers. Through this channel, attackers can send commands to the infected computer, which can include instructions to steal data, install additional malware, or engage in other malicious activities. The backdoor may also be designed to evade detection by traditional security software, making it challenging to identify and remove without specialized tools and knowledge.
Symptoms of Infection
Identifying a backdoor infection can be difficult, as these threats are designed to operate stealthily. However, some possible symptoms of infection include unusual network activity, slow system performance, unexpected changes to system settings, or the appearance of unfamiliar programs or files. If you suspect your system has been compromised, it is crucial to act quickly to minimize potential damage.
How to Remove Backdoor.MSIL.Spy.Agent.TF
- Enter Safe Mode with Networking to prevent the malware from spreading or interfering with the removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the backdoor.
- Uninstall any suspicious programs or applications that you do not recognize or that were installed without your consent.
- 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 system and perform another full scan to ensure that all malware components have been removed and that your system is clean.
Conclusion
Removing Backdoor.MSIL.Spy.Agent.TF requires a thorough and systematic approach to ensure that all components of the malware are eliminated and your system is secured. By following the steps outlined above and maintaining vigilance in your online activities, you can help protect your system and data from future threats. Regularly updating your operating system, applications, and security software, as well as being cautious when opening emails or downloading files from the internet, are crucial practices in preventing malware infections. If you are unsure about any aspect of the removal process, consider consulting with a cybersecurity professional to ensure your system is fully cleaned and protected.
Analysis Report
General information
| Family Name: | Backdoor.MSIL.Spy.Agent.TF |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
57182c3ddd647e473a9a9e62a35576eb
SHA1:
25c427301acc47cd62520084353de9e2bf17c038
SHA256:
65EFF5883C6239CF6820ADDBC60381AF726D5BFF4B29676CAFAEE5186C067A58
File Size:
180.22 KB, 180224 bytes
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MD5:
73dda07d42e4f9bbddf4ec7ea745e267
SHA1:
b933808b4d086c151799a12acd2b8e97c6b4e23a
SHA256:
FE32C6B2A29FAE1477E5E52983D1F956F1DFADBAD3D14575ADBE6203DA0BE1E0
File Size:
567.81 KB, 567808 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 Native application (NOT .NET application)
- File is not packed
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- 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 | 1.9.2.1440 |
| Comments | Helps boost CPU |
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File Traits
- .NET
- Confuser
- 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\ixp000.tmp\tmp4351$.tmp | Generic Write,Read Attributes,Delete |
| c:\users\user\appdata\local\temp\ixp000.tmp\upbp99ec58ey.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ixp000.tmp\upbp99ec58ey.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\ixp000.tmp\vkul0751mu.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ixp000.tmp\vkul0751mu.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\ixp001.tmp\sw64cw49bd86.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ixp001.tmp\sw64cw49bd86.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\ixp001.tmp\tkli69pw73kw.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ixp001.tmp\tkli69pw73kw.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\ixp001.tmp\tmp4351$.tmp | Generic Write,Read Attributes,Delete |
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\wow6432node\microsoft\windows\currentversion\runonce::wextract_cleanup0 | rundll32.exe C:\WINDOWS\system32\advpack.dll,DelNodeRunDLL32 "C:\Users\Fagnuklf\AppData\Local\Temp\IXP000.TMP\" | RegNtPreCreateKey |
| HKLM\software\wow6432node\microsoft\windows\currentversion\runonce::wextract_cleanup1 | rundll32.exe C:\WINDOWS\system32\advpack.dll,DelNodeRunDLL32 "C:\Users\Fagnuklf\AppData\Local\Temp\IXP001.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 |
|---|---|
| User Data Access |
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| Anti Debug |
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| Encryption Used |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Syscall Use |
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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\Fagnuklf\AppData\Local\Temp\IXP000.TMP\vkUL0751mu.exe
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C:\Users\Fagnuklf\AppData\Local\Temp\IXP001.TMP\sw64CW49BD86.exe
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C:\Users\Fagnuklf\AppData\Local\Temp\IXP001.TMP\tkli69Pw73KW.exe
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