Trojan.FlyStud.DB
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: | 12,545 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 712 |
| First Seen: | September 19, 2022 |
| Last Seen: | June 1, 2026 |
| OS(es) Affected: | Windows |
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.FlyStud.DB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
87153a981152c11bb57ce2c126d1dade
SHA1:
5ef59625ff3b6142387fee92448a8f8cd2ba78f8
SHA256:
AB61C2ED61AB9CD26C51EA1226370B306B9B619B83EF15B7EE6F723026685F6D
File Size:
1.24 MB, 1243400 bytes
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MD5:
8523b63d9d4917be0931267a5b2834bf
SHA1:
d71296cc7647a4b2d947bf3714e42ae5b1b36e44
SHA256:
9EBD7C3D32F6B33AE48443F42A7ED9ED447067220AF5DBF6438C6BED1CE97A9C
File Size:
1.17 MB, 1173962 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 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
Show More
- 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 |
|---|---|
| Comments |
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| Company Name |
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| File Description |
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| File Version |
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| Legal Copyright |
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| Product Name |
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| Product Version |
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File Traits
- 2+ executable sections
- big overlay
- 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: | 102 |
|---|---|
| Potentially Malicious Blocks: | 5 |
| Whitelisted Blocks: | 91 |
| Unknown Blocks: | 6 |
Visual Map
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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\e_n40005\commobj.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\edroptarget.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\ethread.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\iext.fnr | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\iext2.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\krnln.fnr | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\krnlnex.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\spec.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\e_n40005\threadpool_fne.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nikkehosts\eapi.fne | Generic Write,Read Attributes |
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| c:\users\user\appdata\local\temp\nikkehosts\internet.fne | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nikkehosts\krnln.fnr | Generic Write,Read Attributes |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\content\e2c6cbaf0af08cf203ba74bf0d0ab6d5_7f584189dfcc61aa971930ca5aed3120 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\content\f2324d0f4e082f1fb1600cfc6410db8b | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\metadata\e2c6cbaf0af08cf203ba74bf0d0ab6d5_7f584189dfcc61aa971930ca5aed3120 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\metadata\f2324d0f4e082f1fb1600cfc6410db8b | Generic Read,Write Data,Write Attributes,Write extended,Append data |
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 |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | 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 |
|---|---|
| Other Suspicious |
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| Keyboard Access |
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| Network Wininet |
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| Encryption Used |
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