Trojan.Filecoder.EO
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: | 4 |
| First Seen: | February 7, 2025 |
| Last Seen: | April 7, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Filecoder.EO on your system indicates a potential security threat that requires immediate attention. This type of threat is known to cause significant damage to your files and compromise your system's security. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.
Table of Contents
What Is Trojan.Filecoder.EO?
Trojan.Filecoder.EO is a type of Trojan horse malware that can infect your system and cause harm to your files and data. The name "Trojan" refers to the fact that this type of malware disguises itself as a legitimate program or file, allowing it to bypass your system's security defenses. The ".Filecoder" part of the name suggests that this malware may be capable of encrypting or modifying files on your system, while the ".EO" suffix may indicate a specific variant or subtype of the malware.
How Trojan.Filecoder.EO Operates
Trojan.Filecoder.EO, like other types of malware, operates by exploiting vulnerabilities in your system's security or by tricking you into installing it. Once installed, it can start causing damage to your files and data. This type of malware can spread through various means, including infected email attachments, compromised websites, or infected software downloads. It can also be spread through infected USB drives or other external devices.
Once Trojan.Filecoder.EO infects your system, it can start encrypting or modifying files, making them inaccessible to you. It may also create backdoors or open ports, allowing hackers to access your system remotely and steal sensitive information. In some cases, this type of malware can also install additional malware or viruses on your system, leading to further damage and compromise.
Symptoms of Infection
The symptoms of a Trojan.Filecoder.EO infection can vary, but common signs include unusual system behavior, slow performance, and unexpected errors or crashes. You may also notice that your files are encrypted or modified, or that you are unable to access certain files or programs. In some cases, you may receive ransom demands or messages from hackers, demanding payment in exchange for the decryption key or other sensitive information.
- Unusual system behavior or crashes
- Slow system performance
- Encrypted or modified files
- Unexpected errors or messages
- Ransom demands or messages from hackers
How to Remove Trojan.Filecoder.EO
- Boot your system 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 to detect and remove the malware.
- Uninstall any suspicious programs or applications that may be related to the malware.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your system and run another full scan to ensure that the malware has been completely removed.
Conclusion
In conclusion, the detection of Trojan.Filecoder.EO on your system is a serious security threat that requires immediate attention. By understanding the nature of this threat and taking prompt action to remove it, you can prevent further damage and compromise to your system and data. Remember to always be cautious when downloading software or opening email attachments, and to keep your system and security software up to date to prevent future infections.
Analysis Report
General information
| Family Name: | Trojan.Filecoder.EO |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
f3d23d1379aaf6e3e1f9d0184fd83398
SHA1:
6e65a3217989c266dc5da645b10df3964bdf081f
SHA256:
CE13BF13BA591B1EFB3CF3B62FA2B7965ABB15207E23E71A40A6926382038ACC
File Size:
3.31 MB, 3313592 bytes
|
|
MD5:
71e96cce64f727cd8ad9fc98f1b11a92
SHA1:
421d09ee693176f8a2b2b82eb7c8ea217431377c
SHA256:
337B282ADEDC43C2D6CD95753559DEC08F552804DEA722E3F0B96BD68C162581
File Size:
1.61 MB, 1608192 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 has been packed
- File has TLS information
- File is 64-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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- 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)
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 |
|---|---|
| Company Name | Google LLC |
| Company Short Name | |
| File Description | Google Installer (x86) |
| File Version | 144.0.7547.0 |
| Internal Name | Google Installer (x86) |
| Last Change | 43ff84ab4732e1864649c417ca17b1c2149d1179-refs/branch-heads/7547@{#1} |
| Legal Copyright | Copyright 2025 Google LLC. All rights reserved. |
| Official Build | 1 |
| Original Filename | UpdaterSetup.exe |
| Product Name | Google Installer (x86) |
| Product Short Name | GoogleUpdater |
| Product Version | 144.0.7547.0 |
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| Google LLC | DigiCert Trusted Root G4 | Hash Mismatch |
File Traits
- CryptUnprotectData
- GetConsoleWindow
- HighEntropy
- Installer Version
- No CryptProtectData
- No Version Info
- packed
- 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: | 14,185 |
|---|---|
| Potentially Malicious Blocks: | 47 |
| Whitelisted Blocks: | 13,825 |
| Unknown Blocks: | 313 |
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.HGDK
- Agent.YT
- Agent.YTI
- Agent.YTJ
- Downloader.Agent.GM
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- Filecoder.ABWE
- Filecoder.BFA
- Filecoder.FBH
- Keylogger.DN
- PSW.Agent.FGG
- PSW.Agent.WG
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 |
|---|---|
| c:\users\user\appdata\local\temp\dc5704e0.bin | Generic Write,Read Attributes |
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 Terminate |
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| Network Winsock2 |
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| Network Winsock |
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