Backdoor.MSIL.DllInject.RRD
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: | 16,982 |
| Threat Level: | 60 % (Medium) |
| Infected Computers: | 7 |
| First Seen: | April 24, 2025 |
| Last Seen: | July 7, 2026 |
| OS(es) Affected: | Windows |
The detection of Backdoor.MSIL.DllInject.RRD indicates a potential security threat to your system. This name suggests a backdoor type of malware, which is designed to allow unauthorized access to a computer system. Backdoors can be particularly dangerous as they can lead to a variety of malicious activities, including data theft, installation of additional malware, and exploitation of system resources for spamming or cryptocurrency mining.
Table of Contents
What Is Backdoor.MSIL.DllInject.RRD?
Backdoor.MSIL.DllInject.RRD is identified as a backdoor threat, implying its primary function is to bypass normal security mechanisms to allow remote access or control of the infected computer. The term "MSIL" refers to Microsoft Intermediate Language, which is a part of the .NET Framework, suggesting that this malware might utilize .NET components or be written in a .NET language. "DllInject" implies that the malware involves DLL (Dynamic Link Library) injection, a technique used by malware to evade detection by hiding within legitimate system processes. Understanding the nature of this threat is crucial for devising an effective removal strategy.
How Backdoor.MSIL.DllInject.RRD Operates
Backdoor malware like Backdoor.MSIL.DllInject.RRD typically operates by first infecting a system through various means, such as exploiting vulnerabilities, phishing, or drive-by downloads. Once inside, it may establish a connection with a command and control (C2) server to receive instructions. The malware can then perform a range of malicious activities, from stealing sensitive information to using the infected system as part of a botnet for distributed denial-of-service (DDoS) attacks or spam distribution. The DLL injection technique allows the malware to blend in with legitimate system processes, making it harder to detect and remove.
Symptoms of Infection
Symptoms of a backdoor infection can be subtle and may include unusual system behavior, such as unexpected changes in system settings, appearance of unknown programs or files, or increased network activity without a clear cause. Systems may also exhibit performance issues, such as slowdowns or frequent crashes, due to the malware consuming system resources. However, some backdoors are designed to operate stealthily, making them difficult to detect without specific security tools.
How to Remove Backdoor.MSIL.DllInject.RRD
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the malware.
- Uninstall any suspicious programs or applications that were installed around the time of the suspected infection. Be cautious and only remove programs you are certain are malicious or unnecessary.
- Reset your web browsers (Chrome, Firefox, 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 the malware has been completely removed. Repeat this process until no more threats are detected.
Conclusion
Removing Backdoor.MSIL.DllInject.RRD requires a careful and systematic approach to ensure that all components of the malware are eliminated. It's also crucial to take preventive measures to avoid future infections, including keeping your operating system and software up to date, using strong antivirus protection, and being cautious when clicking on links or downloading attachments from unknown sources. By understanding how backdoor malware operates and taking the right steps, you can protect your system and data from these threats.
Analysis Report
General information
| Family Name: | Backdoor.MSIL.DllInject.RRD |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
c7dc7029951de199f227e372571df4de
SHA1:
afb93ea1cb208f724b9ee746d80763c10434578c
SHA256:
FBAE417109184F06AD2A1E581572EE38AFCAAC990EF6E704F5FEB8596CF16131
File Size:
1.03 MB, 1030656 bytes
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MD5:
7652135719a0e206684cf4f1e245bf3d
SHA1:
c39678edc95063eb183644a406776c8c806af4f3
SHA256:
7D220FE532FAC59A575944544E3F5287DC9EA9AB1E568C7CD798CD2878F5EA9D
File Size:
1.30 MB, 1302016 bytes
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MD5:
11b4c7939b1db53d482d9275bbbba7d7
SHA1:
8ab22367c3b304601968e467fb6974b81a3f523e
SHA256:
8FBB4742A2200CEE2558E429E3FC71264225DF009C65F40CB932EF2BC8672B52
File Size:
1.07 MB, 1073664 bytes
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MD5:
18237e4bc9fbcd6600148950c433445e
SHA1:
c249726df7cd0b05c8b2d2e031e3b7a047b82ffa
SHA256:
826393C36B77FE4F9FE3511F5C92E1927FFEB19AF84F7D678C6981266708DD1C
File Size:
1.06 MB, 1058304 bytes
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MD5:
b838b5494bc2f00a337aec1f6d9e69c1
SHA1:
934e20a901aa58b16627414c2aab9008a35d13e1
SHA256:
7937B1F92FF98054535379F1E0115317D202A483BB195D74FE6CE3CC95CB43DD
File Size:
931.33 KB, 931328 bytes
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Show More
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MD5:
8a73ea829c4437ebdd8d2aa4d1547ebd
SHA1:
63eae398e05ce3bbd9b56f71c469f96aa6a25739
SHA256:
74DF75FE9AF2C454B89F48C02454D7AFCE54F4ED8238DD431ADFEDDDC6D05E81
File Size:
543.74 KB, 543744 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- 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)
- 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 | 1.0.0.0 |
| Company Name | china |
| File Description | Ido_Update |
| File Version | 1.0.0.0 |
| Internal Name | Ido_Update.exe |
| Legal Copyright | Copyright © china 2018 |
| Original Filename | Ido_Update.exe |
| Product Name | Ido_Update |
| Product Version | 1.0.0.0 |
File Traits
- .NET
- 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: | 31 |
|---|---|
| Potentially Malicious Blocks: | 19 |
| Whitelisted Blocks: | 7 |
| Unknown Blocks: | 5 |
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.DllInject.RHK
- MSIL.DllInject.RRD
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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