Trojan.Agent.VB
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: | 14,084 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 22 |
| First Seen: | December 30, 2012 |
| Last Seen: | July 2, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Agent.VB on your system indicates a potential security threat that requires immediate attention. This report provides an overview of the threat, its operating methods, symptoms of infection, and a step-by-step guide on how to remove it from your system.
Table of Contents
What Is Trojan.Agent.VB?
Trojan.Agent.VB is a type of malware that falls under the category of Trojans. Trojans are malicious programs that disguise themselves as legitimate software, allowing them to bypass security measures and gain unauthorized access to a system. The name "Trojan.Agent.VB" suggests that it is written in Visual Basic, a programming language, but the specifics of its operation and goals can vary widely.
How Trojan.Agent.VB Operates
Like other Trojans, Trojan.Agent.VB is designed to deceive users into installing it on their systems. Once installed, it can perform a variety of malicious actions, depending on its programming. This can include stealing sensitive information, installing additional malware, providing unauthorized access to the system, or disrupting system operation. The exact mechanisms and goals of Trojan.Agent.VB can vary, but its primary function is to act as a backdoor into the infected system, allowing remote access and control.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common signs include unusual system behavior, such as unexpected crashes, slow performance, or unfamiliar programs and icons. You might also notice increased network activity, even when you're not using the internet, or find that your security software is disabled. Sometimes, the presence of a Trojan can go unnoticed for a long time, making regular system checks and updates crucial for early detection.
How to Remove Trojan.Agent.VB
- Boot into Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. To do this, restart your computer and press the key that opens the boot menu (usually F8, F12, or Del), then select Safe Mode with Networking.
- Perform a Full Scan with a Reputable Tool: Use an anti-malware program like SpyHunter to scan your system thoroughly. Ensure the software is updated to the latest version to increase the chances of detecting and removing the Trojan.
- Uninstall Suspicious Programs: Go through your installed programs and remove any that you don't recognize or that were installed around the time the malware was detected.
- Reset Your Browsers: Malware often modifies browser settings. Resetting Chrome, Firefox, Edge, or any other browsers you use can help remove unwanted extensions and settings. You can usually find this option in the browser's settings or preferences section.
- Reboot and Re-scan: After taking the above steps, restart your computer in normal mode and perform another full scan with your anti-malware software to ensure that all traces of the malware have been removed.
Conclusion
The removal of Trojan.Agent.VB requires careful and thorough steps to ensure that all components of the malware are eliminated from your system. It's crucial to stay vigilant and maintain good security practices, including keeping your operating system and software up to date, using strong, unique passwords, and being cautious when opening email attachments or downloading software from the internet. Regular system scans with reputable security software can help detect and remove threats before they cause significant harm.
Analysis Report
General information
| Family Name: | Trojan.Agent.VB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
567b6bc52df5bcfd2830a59a7043d35c
SHA1:
7f4d04630d718d820632ed1e15e9fe9059d83a16
SHA256:
46F0A0C4C1E766DBB708434DE89A53872DC00383A0BD8F883AABBBFE9BD937AC
File Size:
1.95 MB, 1949696 bytes
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MD5:
ce04f8b6ad5020fd89b1395f3a1f7f70
SHA1:
d4befaf5583bd4c5d24710072cd9a8c5a4b80e80
SHA256:
E7AE81055D1856431F24FCD9AFAD6ACBD47DDF89D26D40840A0BE3C84A59AA71
File Size:
1.94 MB, 1936896 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have security information
- File has exports table
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
- 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)
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 |
|---|---|
| Company Name | Optmizer |
| File Description | Optimizer |
| File Version | V12.1 |
File Traits
- dll
- HighEntropy
- ntdll
- WriteProcessMemory
- 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: | 2,826 |
|---|---|
| Potentially Malicious Blocks: | 30 |
| Whitelisted Blocks: | 2,790 |
| Unknown Blocks: | 6 |
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.- Agent.VB
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
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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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\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\7f4d04630d718d820632ed1e15e9fe9059d83a16_0001949696.,LiQMAxHB
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C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\d4befaf5583bd4c5d24710072cd9a8c5a4b80e80_0001936896.,LiQMAxHB
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