Trojan.Grandoreiro.F
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: | 16,028 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 86 |
| First Seen: | March 15, 2022 |
| Last Seen: | July 1, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Grandoreiro.F on your system indicates a potential security threat that requires immediate attention. Trojans are a type of malware that can cause significant harm to your computer and compromise your personal data. In this report, we will provide 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.F?
Trojan.Grandoreiro.F is a type of Trojan malware that can infect your computer through various means, such as downloads from untrusted sources, infected email attachments, or exploited vulnerabilities. Once installed, it can perform a range of malicious activities, including data theft, system compromise, and disruption of normal computer operation. The name "Trojan.Grandoreiro.F" suggests that it is a variant of a known Trojan threat, but its specific characteristics and behaviors may vary.
How Trojan.Grandoreiro.F Operates
Trojan.Grandoreiro.F, like other Trojans, operates by disguising itself as a legitimate program or file, allowing it to evade detection and gain access to your system. Once inside, it can create backdoors, allowing remote access to your computer, and may also install additional malware or spyware. The malware can communicate with its command and control servers, sending and receiving data, and may also attempt to spread to other computers through network connections or removable drives.
Symptoms of Infection
Identifying a Trojan infection can be challenging, as the malware often hides its presence. However, some common symptoms of infection include slow system performance, frequent crashes, and unexpected pop-ups or ads. You may also notice unusual network activity, such as unexplained data transfers or changes to your system settings. If you suspect that your computer is infected with Trojan.Grandoreiro.F, it is essential to take immediate action to remove the threat.
- Unexplained changes to system settings or files
- Slow system performance or frequent crashes
- Unexpected pop-ups, ads, or browser redirects
- Unusual network activity or data transfers
How to Remove Trojan.Grandoreiro.F
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for a clean scan.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any infected files or programs.
- Uninstall any suspicious programs or applications that may be related to 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 perform another scan to ensure that the threat has been fully removed.
Conclusion
Removing Trojan.Grandoreiro.F from your system requires careful attention to detail and a comprehensive approach to ensure that all infected files and programs are eliminated. By following the steps outlined in this report, you can help to protect your computer and personal data from the risks associated with this malware. Remember to always use caution when downloading files or opening email attachments, and to keep your anti-malware software up to date to prevent future infections.
Analysis Report
General information
| Family Name: | Trojan.Grandoreiro.F |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
1bcecde286a5495d467e6417c6b7ee86
SHA1:
f4c4048789f7fe7139edea62f168ad63a5fbaa66
SHA256:
F4D08CABA803ED1529CD087A94D5EBE004801F0E6AE13C6E950C2F7852054D06
File Size:
4.61 MB, 4608512 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: | 11,523 |
|---|---|
| Potentially Malicious Blocks: | 11 |
| Whitelisted Blocks: | 11,508 |
| Unknown Blocks: | 4 |
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.LKGA
- Banker.AN
- Banload.XB
- Injector.XD
- Ousaban.D
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 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\f4c4048789f7fe7139edea62f168ad63a5fbaa66_0004608512.,LiQMAxHB
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