Trojan.Grandoreiro.GB
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: | 27,430 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 1 |
| First Seen: | July 9, 2026 |
| Last Seen: | July 14, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Grandoreiro.GB 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 steps to remove it from your system.
Table of Contents
What Is Trojan.Grandoreiro.GB?
Trojan.Grandoreiro.GB is a type of malware that can compromise the security and integrity of your computer system. The name suggests it is a Trojan-type threat, which typically disguises itself as legitimate software to gain unauthorized access to a computer. Trojans can be used to spy on users, steal sensitive information, or disrupt system operation. Understanding the nature of this threat is crucial for taking appropriate measures to protect your system and data.
How Trojan.Grandoreiro.GB Operates
Trojan.Grandoreiro.GB, like other Trojans, operates by deceiving users into installing it on their systems. This can happen through various means, such as downloading software from untrusted sources, opening malicious email attachments, or clicking on links from suspicious websites. Once installed, the Trojan can create backdoors for remote access, allowing attackers to control the infected system, steal personal data, or use the system for malicious activities like spreading spam or malware.
Symptoms of Infection
Identifying a Trojan infection can be challenging due to its stealthy nature. However, some common symptoms may indicate the presence of Trojan.Grandoreiro.GB or similar malware on your system. These include unexpected changes in system settings, unusual network activity, slow system performance, frequent crashes, or the appearance of unwanted programs or toolbars. If you notice any of these symptoms, it's essential to take immediate action to secure your system and protect your data.
- Unexplained system crashes or freezes
- New, unfamiliar programs or icons on your desktop
- Changes in your browser's homepage or search engine without your consent
- Pop-ups or unwanted advertisements appearing on your screen
- Difficulty in installing security updates or running antivirus software
How to Remove Trojan.Grandoreiro.GB
- Boot into Safe Mode with Networking: This will allow you to use the internet to download removal tools while limiting the malware's ability to interfere with the removal process.
- Run a Full Scan with a Reputable Tool: Utilize a trusted antivirus or anti-malware program, such as SpyHunter, to scan your system thoroughly for any traces of the Trojan and other malware.
- Uninstall Suspicious Programs: Go through your installed programs and remove any that you don't recognize or that were installed around the time you suspect the infection occurred.
- Reset Your Browser Settings: For browsers like Chrome, Firefox, or Edge, reset their settings to the default values to remove any malicious extensions or changes made by the Trojan.
- Reboot and Re-scan: After completing the above steps, restart your computer and run another full scan with your antivirus software to ensure that all remnants of the malware have been removed.
Conclusion
Removing Trojan.Grandoreiro.GB from your system requires careful and systematic steps to ensure that all components of the malware are eliminated. By understanding how Trojans operate and following the removal guide provided, you can protect your system from this and similar threats. Remember, prevention is key; always be cautious when downloading software, avoid suspicious links and emails, and keep your antivirus software up to date to safeguard against future infections.
Analysis Report
General information
| Family Name: | Trojan.Grandoreiro.GB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
6fc706ce6639aca9aea63665595f14a2
SHA1:
df9f881324a6841f768131482068301561e1ead0
SHA256:
74B0B86E087B66064EEB30B32A217B713B9DCE958B83D0F9DB13565FCB79685F
File Size:
5.76 MB, 5756928 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have security information
- File has exports table
- 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)
- 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 Traits
- 2+ executable sections
- dll
- VirtualQueryEx
- 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: | 14,341 |
|---|---|
| Potentially Malicious Blocks: | 227 |
| Whitelisted Blocks: | 14,112 |
| Unknown Blocks: | 2 |
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.- Banload.HA
- Grandoreiro.F
- Grandoreiro.G
- Grandoreiro.GB
- Grandoreiro.GC
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- Kryptik.YRF
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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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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| User Data Access |
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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\df9f881324a6841f768131482068301561e1ead0_0005756928.,LiQMAxHB
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