Trojan.MSIL.Agent.HLB
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: | 80 % (High) |
| Infected Computers: | 3 |
| First Seen: | April 26, 2025 |
| Last Seen: | April 19, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Agent.HLB on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operation, symptoms, and most importantly, the steps to remove it from your computer.
Table of Contents
What Is Trojan.MSIL.Agent.HLB?
Trojan.MSIL.Agent.HLB is identified as a Trojan-type threat, which is a broad category of malware designed to deceive users into installing it on their systems. Trojans can have various functionalities, including data theft, espionage, and the ability to create backdoors for remote access. The name itself does not specify a particular malware family, but it suggests a threat that could potentially perform malicious activities on an infected system.
How Trojan.MSIL.Agent.HLB Operates
Trojans like Trojan.MSIL.Agent.HLB typically operate by disguising themselves as legitimate software or attachments. Once installed, they can execute a range of malicious activities, from stealing sensitive information to downloading additional malware. These threats often exploit system vulnerabilities or trick users into granting them elevated privileges, allowing them to operate undetected for extended periods.
Symptoms of Infection
Identifying a Trojan infection can be challenging due to their stealthy nature. However, common symptoms include unexpected system crashes, slow performance, unfamiliar programs or icons, and unusual network activity. Users might also notice that their antivirus software is disabled or that they are being redirected to suspicious websites. It's crucial to be vigilant and monitor system behavior closely to detect potential infections early.
How to Remove Trojan.MSIL.Agent.HLB
- Enter Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. Restart your computer and press the key to access your boot menu (this varies by manufacturer but is often F12, F2, or Del). Select the option to boot into Safe Mode with Networking.
- Perform a Full Scan with a Reputable Tool: Utilize a trustworthy anti-malware tool, such as SpyHunter, to conduct a thorough scan of your system. Ensure your antivirus and anti-malware definitions are up to date before proceeding.
- Uninstall Suspicious Programs: Go through your installed programs and remove any that you do not recognize or that were installed around the time you suspect the infection occurred.
- Reset Your Browser: If your browser (Google Chrome, Mozilla Firefox, Microsoft Edge) has been affected, reset it to its default settings. This will remove any malicious extensions or settings that the Trojan might have altered.
- Reboot and Re-scan: After completing the above steps, restart your computer and perform another full scan with your anti-malware tool to ensure that all components of the Trojan have been removed.
Conclusion
Removing Trojan.MSIL.Agent.HLB from your system requires careful and methodical steps to ensure all malicious components are eliminated. It's essential to stay vigilant and maintain good cybersecurity practices to prevent future infections, including keeping your operating system and software up to date, using strong, unique passwords, and being cautious with emails and downloads from unknown sources. By following the guidance provided, you should be able to successfully remove the Trojan and secure your computer against similar threats.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Agent.HLB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
652bd1a3202919fd278aef6e4ee7d375
SHA1:
2a6883eae32ae479b74be32277e9cbc32f225a62
SHA256:
CADDB7D77AC56FF2842D9B459B1A3A2A8CEF9E73A050933B04272F02A920004A
File Size:
2.96 MB, 2958463 bytes
|
|
MD5:
682ae74090752639ac7b91eac0002469
SHA1:
4c3170f7804e0e636531f4da3f6acbb2d4fcc080
SHA256:
2EBF36C4854190BEC5B1BB36FED7F09C3636DBD96572545F05CF1968ABBA93DE
File Size:
7.63 MB, 7629824 bytes
|
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 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)
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- 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 | 3.6.6.0 |
| Comments | Программа для раскрутки группы и продвижения |
| Company Name | Dmss Soft |
| File Description | OkSender Ultra |
| File Version | 3.6.6.0 |
| Internal Name | OkSender.exe |
| Legal Copyright | Dmss-Group ©2023 |
| Original Filename | OkSender.exe |
| Product Name | OkSender Ultra |
| Product Version | 3.6.6.0 |
File Traits
- .NET
- HighEntropy
- 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: | 1,205 |
|---|---|
| Potentially Malicious Blocks: | 128 |
| Whitelisted Blocks: | 35 |
| Unknown Blocks: | 1,042 |
Visual Map
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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - 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 | Generic Read,Write Attributes |
| \device\namedpipe | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_46da8a95.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_69abfeaa.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_db11b13d.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_03299e11\file_ddd5043e.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_2cf8be07\file_4a5a03c0.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_83791bb2\file_0a3a8a23.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_83791bb2\file_96a0692f.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_03e485fb.txt | Generic Write,Read Attributes |
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| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_07ca3769.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_a2609c79.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\datafolder_b92bd4e1\file_f7053549.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_2a5ef31f.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_56e0afce.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_5e8049eb.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_8c920409.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\log_f7aed805.txt | Generic Write,Read Attributes |
| c:\programdata\windowsservice.{d20ea4e1-3957-11d2-a40b-0c5020524153}\svchost.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\appdata\local\temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(1).exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(2).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\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ⟘ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ⟘ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | 跱⟘ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ⟘ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 搆⟘ǜ | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\winlogon::userinit | C:\Windows\system32\userinit.exe,C:\ProgramData\WindowsService.{D20EA4E1-3957-11D2-A40B-0C5020524153}\svchost.exe | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | 瞛⟘ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | �����'� | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ⟘ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 霐⟘ǜ | RegNtPreCreateKey |
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| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 鄲⟘ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 扔⟘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 |
|---|---|
| Anti Debug |
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| User Data Access |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Syscall Use |
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22 additional items are not displayed above. |
| Encryption Used |
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| Other Suspicious |
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| Process Terminate |
|
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\Xyydnqnd\AppData\Local\Temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(1).exe
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C:\Users\Xyydnqnd\AppData\Local\Temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(2).exe
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WriteConsole:
SERVICE_NAME:
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"cmd.exe" /c schtasks /create /tn "WinServiceTask" /tr "C:\ProgramData\WindowsService.{D20EA4E1-3957-11D2-A40B-0C5020524153}\svchost.exe" /SC MINUTE /MO 1 /RL HIGHEST /IT /F
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WriteConsole:
SERVICE_NAME:
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C:\WINDOWS\system32\schtasks.exe schtasks /create /tn "WinServiceTask" /tr "C:\ProgramData\WindowsService.{D20EA4E1-3957-11D2-A40B-0C5020524153}\svchost.exe" /SC MINUTE /MO 1 /RL HIGHEST /IT /F
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"cmd.exe" /c timeout 5 >nul && del "C:\Users\Xyydnqnd\AppData\Local\Temp\hwrtgnjoweritgbhjnuwerghuijhwegujiorhujiwergoujihgeriujwerg(2).exe"
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WriteConsole: [SC] ControlServ
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C:\WINDOWS\system32\timeout.exe timeout 5
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WriteConsole:
SERVICE_NAME:
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WriteConsole: [SC] ControlServ
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WriteConsole: [SC] ChangeServi
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WriteConsole: [SC] ChangeServi
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