Infostealer.Nasdosto
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: | 3,091 |
| Threat Level: | 90 % (High) |
| Infected Computers: | 16,635 |
| First Seen: | January 23, 2013 |
| Last Seen: | April 13, 2026 |
| OS(es) Affected: | Windows |
Infostealer.Nasdosto is a Trojan that steals information from the corrupted PC. While being run, Infostealer.Nasdosto creates the files on the infected computer system. Infostealer.Nasdosto creates the registry entries so that it can load automatically every time Windows is started. Infostealer.Nasdosto logs keystrokes on the victimized computer system. Infostealer.Nasdosto transfers the collected information to the remote locations.
Table of Contents
File System Details
Infostealer.Nasdosto may create the following file(s):
| # | File Name |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|
| 1. | %System%\ns7dos.exe | |
| 2. | %System%\ns6dos.exe | |
| 3. | %System%\ns2dos.exe | |
| 4. | %System%\nsdos2.exe | |
| 5. | %System%\ns7dos | |
| 6. | %System%\ns6dos | |
| 7. | %System%\ns2dos | |
| 8. | %System%\nsdos2 |
Registry Details
Infostealer.Nasdosto may create the following registry entry or registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"msdos-debug" = "[HEXADECIMAL CHARACTERS]"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"msdos-debug2" = "[HEXADECIMAL CHARACTERS]"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"nsdos-debugg" = "[HEXADECIMAL CHARACTERS]"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\[RANDOM CLSID]\"StubPath" = "[HEXADECIMAL CHARACTERS]"
Analysis Report
General information
| Family Name: | HEUR.Malware.Win32.Posin |
|---|---|
| Signature status: | Self Signed |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
1be5c07313087d910e639dc0801929a2
SHA1:
e030a35ad56e3d74029cfb78fce0d0c7a4c55dc3
SHA256:
195E605256EB7CC8C78562F0D7D5759D58C034912224B5EA3F4295EE87390198
File Size:
731.03 KB, 731035 bytes
|
|
MD5:
7773fba6047fb22854871a1e3edbca24
SHA1:
b5162ce92f1a648aae732477ddd085cae5998959
SHA256:
27755142F92C63835558575347A9B7058E7FE4C1ADDE60CBBB2188636C261CE7
File Size:
1.89 MB, 1892352 bytes
|
|
MD5:
b84980709e08e594ff91a429882c1f0b
SHA1:
7200a7e9036396e07d8c5ef32b833cdba0ac0765
SHA256:
AD2B4D5E5E8DA589D63AA812B83AB71CEF5CE507BAE9A5E4FA0D97403D01F2B0
File Size:
2.83 MB, 2834944 bytes
|
|
MD5:
8c63eba152dff7d2da8bf09e5b3ce7a7
SHA1:
33d16f48b8c838675f277f5e35f219d6146b41bb
SHA256:
43F2F5BE32D92C9263ED76C2D3DC8A434A8E12DCE1A2F27717FAE64894F1423E
File Size:
55.38 KB, 55376 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 resources
- File doesn't have security information
- File has been packed
- File has exports table
- File has TLS information
- File is 32-bit executable
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- 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)
- 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 | Captures movie scenes to single picture files or thumbnail galleries |
| Company Name | Lonking Software, LLC. |
| File Description | Captures movie scenes to single picture files or thumbnail galleries |
| File Version |
|
| Internal Name | TJprojMain |
| Original Filename | TJprojMain.exe |
| Product Name |
|
| Product Version |
|
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 |
|---|---|---|
| ShenZhen Thunder Networking Technologies Ltd. | ShenZhen Thunder Networking Technologies Ltd. | Self Signed |
File Traits
- 00 section
- 2+ executable sections
- dll
- HighEntropy
- No Version Info
- packed
- upx
- UPX!
- 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: | 5 |
|---|---|
| Potentially Malicious Blocks: | 3 |
| Whitelisted Blocks: | 2 |
| Unknown Blocks: | 0 |
Visual Map
x
x
x
0
0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - 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.- HEUR.Malware.Win32.Posin
- NSPack.Gen
- PcClient.L
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 |
|
| Anti Debug |
|
| User Data Access |
|
| Syscall Use |
Show More
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| Process Manipulation Evasion |
|
| Process Shell Execute |
|
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\33d16f48b8c838675f277f5e35f219d6146b41bb_0000055376.,LiQMAxHB
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