Backdoor.MSIL.Spy.Agent.HV
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: | 20 |
| First Seen: | May 10, 2023 |
| Last Seen: | January 15, 2026 |
| OS(es) Affected: | Windows |
The detection of Backdoor.MSIL.Spy.Agent.HV on your system indicates a potentially serious security threat. This backdoor threat is designed to allow unauthorized access to your computer, which can lead to a range of malicious activities, including data theft, spyware installation, and further malware distribution. It is essential to understand the nature of this threat and take immediate action to remove it and secure your system.
Table of Contents
What Is Backdoor.MSIL.Spy.Agent.HV?
Backdoor.MSIL.Spy.Agent.HV is a type of malware that operates as a backdoor, allowing remote access to your computer. The name suggests it is written in MSIL (Microsoft Intermediate Language), which is a platform-agnostic intermediate representation of the .NET Framework. This backdoor can be used by attackers to execute commands, steal sensitive information, or install additional malware on your system. The presence of this threat compromises the security and integrity of your computer and the data it holds.
How Backdoor.MSIL.Spy.Agent.HV Operates
Backdoor.MSIL.Spy.Agent.HV, like other backdoor malware, is designed to remain stealthy and operate without being detected by the user or security software. It can be distributed through various means, including exploited vulnerabilities, phishing emails, or infected software downloads. Once installed, it can communicate with its command and control (C2) servers to receive instructions, which can include commands to steal data, install additional malware, or participate in botnet activities. The backdoor can also modify system settings and create new user accounts to maintain access even if the original infection vector is removed.
Symptoms of Infection
Symptoms of a Backdoor.MSIL.Spy.Agent.HV infection can be subtle and may not always be immediately apparent. However, signs of infection can include unusual network activity, slow system performance, unfamiliar programs or files, and unexpected changes to system settings. Users may also notice that their computer is behaving erratically, such as crashing frequently or displaying unusual error messages. In some cases, there may be no noticeable symptoms at all, making regular system scans with anti-malware software crucial for detection.
How to Remove Backdoor.MSIL.Spy.Agent.HV
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for internet access to download removal tools.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove the backdoor and any associated malware.
- Uninstall any suspicious programs that were installed around the time of the infection. Be cautious and only remove programs you are certain are malicious or unnecessary.
- Reset your web browsers (Google Chrome, Mozilla Firefox, Microsoft Edge, etc.) 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 Backdoor.MSIL.Spy.Agent.HV requires immediate attention to prevent further damage to your system and data. By following the steps outlined above and maintaining good security practices, such as regularly updating your operating system and software, using strong, unique passwords, and being cautious with email attachments and downloads, you can help protect your computer from similar threats in the future. Remember, prevention and vigilance are key components of cybersecurity, and staying informed about the latest threats and best practices is essential for safeguarding your digital assets.
Analysis Report
General information
| Family Name: | Backdoor.MSIL.Spy.Agent.HV |
|---|---|
| Signature status: | Self Signed |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
6a1aad8ff4bb31cd03558b96c9036795
SHA1:
9915fc5635b732a0764f77dbbcd07a9fa26a551f
SHA256:
FE7A8F5F18F6247BBD8AFD12897A8A5B50333A4A5CE1B3D562184348E1200D4F
File Size:
274.43 KB, 274432 bytes
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MD5:
827e8094c53c6c50a0ea2080b841bd15
SHA1:
2d95ddb51d9184c3829591fe22e4a03bca5a2bda
SHA256:
1310B84EC02CD5110EDDDA1EF006A58E84DD51A570DB0AF7549AE667A7130C14
File Size:
612.24 KB, 612240 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 64-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- 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 |
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| Assembly Version |
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| Comments |
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| 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 | Duplicate Finder |
| Product Version |
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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 |
|---|---|---|
| John Harby | SSL.com Code Signing Intermediate CA RSA R1 | Self Signed |
File Traits
- .NET
- HighEntropy
- NewLateBinding
- RijndaelManaged
- x64
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: | 2,162 |
|---|---|
| Potentially Malicious Blocks: | 152 |
| Whitelisted Blocks: | 1,718 |
| Unknown Blocks: | 292 |
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.Agent.VL
- MSIL.Brute.HH
- MSIL.ClipBanker.XBC
- MSIL.DiscoStealer.A
- MSIL.DiscordStealer.FT
Show More
- MSIL.Downloader.NA
- MSIL.Gamehack.B
- MSIL.Krypt.MBEF
- MSIL.Krypt.ZGBX
- MSIL.PSW.Agent.AI
- MSIL.Rubeus.A
- MSIL.Spy.Agent.RT
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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| Anti Debug |
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| Encryption Used |
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