Backdoor.MSIL.Agent.THB
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: | 20,549 |
| Threat Level: | 60 % (Medium) |
| Infected Computers: | 10 |
| First Seen: | February 8, 2026 |
| Last Seen: | May 21, 2026 |
| OS(es) Affected: | Windows |
The detection of Backdoor.MSIL.Agent.THB on your system indicates a potential security threat that requires immediate attention. This backdoor threat can compromise the integrity of your computer, allowing unauthorized access and potentially leading to further malware infections, data theft, or other malicious activities. 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.Agent.THB?
Backdoor.MSIL.Agent.THB is identified as a backdoor threat, which means it is designed to bypass normal security mechanisms and allow unauthorized access to a compromised computer. The term "backdoor" refers to the malicious program's ability to create a secret entry point into a system, enabling attackers to execute commands, steal data, or install additional malware without being detected by traditional security software. The "MSIL" part of the name suggests that the malware is written in Microsoft Intermediate Language, which is a platform-agnostic, object-oriented programming language used by the .NET Framework.
How Backdoor.MSIL.Agent.THB Operates
Backdoor threats like Backdoor.MSIL.Agent.THB typically operate by establishing a covert communication channel with a command and control (C2) server controlled by the attackers. This channel allows the attackers to send commands to the compromised computer, which can include instructions to steal sensitive information, install additional malware, or engage in other malicious activities. The backdoor may also be designed to evade detection by traditional antivirus software, using techniques such as code obfuscation, anti-debugging, or exploiting vulnerabilities in the operating system or applications.
Symptoms of Infection
Identifying a backdoor infection can be challenging, as these threats are designed to remain stealthy. However, some common symptoms that may indicate the presence of a backdoor threat like Backdoor.MSIL.Agent.THB include unusual network activity, slow system performance, unexplained changes to system settings or files, or the appearance of unfamiliar programs or icons. Additionally, you may notice that your computer is behaving erratically, such as crashing or freezing frequently, or that your antivirus software is detecting and blocking suspicious activity.
How to Remove Backdoor.MSIL.Agent.THB
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for internet access. This will make it easier to download and install removal tools.
- Download and install a reputable anti-malware tool, such as SpyHunter, which can detect and remove backdoor threats like Backdoor.MSIL.Agent.THB. Perform a full scan of your system to identify and remove all malicious components.
- Uninstall any suspicious programs or applications that may be related to the backdoor threat. Be cautious when removing programs, as some may be legitimate or required by your system.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings that may have been installed by the backdoor.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure that all remnants of the backdoor threat have been removed.
Conclusion
Removing a backdoor threat like Backdoor.MSIL.Agent.THB requires careful attention to detail and a thorough understanding of the removal process. By following the steps outlined above and using reputable anti-malware tools, you can help to ensure the complete removal of the threat and prevent future infections. It is also essential to maintain good security practices, such as keeping your operating system and software up to date, using strong passwords, and being cautious when opening email attachments or downloading files from the internet. By taking these precautions, you can help to protect your computer and personal data from the risks associated with backdoor threats like Backdoor.MSIL.Agent.THB.
Analysis Report
General information
| Family Name: | Backdoor.MSIL.Agent.THB |
|---|---|
| Signature status: | Hash Mismatch |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
8434d8db5c955c69cbd522dfa42b45eb
SHA1:
61554c5cdf56f04eabd255e3191c3d4da9d3469a
SHA256:
E2751B7B1E4CD7F51753F7CA1B405DB916C80C329AB93D9A1C988BC3999E876F
File Size:
4.19 MB, 4188000 bytes
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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 | 1.8.5.0 |
| Comments | Ashampoo Driver Updater |
| Company Name | Ashampoo |
| File Description | Ashampoo Driver Updater |
| File Version | 1.8.5.0 |
| Internal Name | ashpdu.exe |
| Legal Copyright | Ashampoo GmbH & Co. KG |
| Original Filename | ashpdu.exe |
| Product Name | Ashampoo Driver Updater |
| Product Version | 1.8.5.0 |
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 |
|---|---|---|
| Ashampoo GmbH & Co. KG | GlobalSign Code Signing Root R45 | Hash Mismatch |
File Traits
- .NET
- RijndaelManaged
- 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: | 475 |
|---|---|
| Potentially Malicious Blocks: | 155 |
| Whitelisted Blocks: | 87 |
| Unknown Blocks: | 233 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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 |
|---|---|
| \device\namedpipe\gmdasllogger | Generic Write,Read Attributes |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\content\357f04ad41bcf5fe18fcb69f60c6680f_84a6276ee287248b10d25b904bce651e | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\content\9cb4373a4252de8d2212929836304ec5_1ab74aa2e3a56e1b8ad8d3fec287554e | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\metadata\357f04ad41bcf5fe18fcb69f60c6680f_84a6276ee287248b10d25b904bce651e | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\metadata\9cb4373a4252de8d2212929836304ec5_1ab74aa2e3a56e1b8ad8d3fec287554e | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\appcompat\programs\amcache.hve | Read Data,Read Control,Write Data |
| c:\windows\appcompat\programs\amcache.hve | Write 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\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | +k � 8��8tX��B�8 �� �6 �v 5� �Z xy �� T�B� ������ � ���� �5����ee��Bx �< �!wz "Wc#�#��$kF$�� %"�%:� %�&� &�-&�x(�(X�)�`*J*9*�"*�^*�h+�[,��/9� /��0P%1`1�1HO 1�D5�0 | RegNtPreCreateKey |
| HKLM\system\software\microsoft\tip\aggregateresults::data | 隞̃鄁耀꧌ ň ǜ | 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 |
Show More
9 additional items are not displayed above. |
| 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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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:\Windows\Microsoft.NET\Framework64\v2.0.50727\\dw20.exe dw20.exe -x -s 1812
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