STOP.GS Ransomware
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: | 22,331 |
| Threat Level: | 100 % (High) |
| Infected Computers: | 5,863 |
| First Seen: | October 6, 2021 |
| Last Seen: | July 15, 2026 |
| OS(es) Affected: | Windows |
The detection of STOP.GS Ransomware on your system indicates a serious security threat that requires immediate attention. Ransomware is a type of malware designed to encrypt and hold your files hostage, demanding payment in exchange for the decryption key. In this report, we will provide an overview of the threat, its operation, symptoms of infection, and steps to remove it from your system.
Table of Contents
What Is STOP.GS Ransomware?
STOP.GS Ransomware is a malicious program that uses encryption to lock your files, making them inaccessible until a ransom is paid. The name itself does not necessarily indicate a specific malware family, but rather a detection label assigned by security software. Ransomware like STOP.GS typically spreads through phishing emails, exploited vulnerabilities, or infected software downloads. Once inside your system, it begins to scan for files to encrypt, often targeting common file types such as documents, images, and videos.
How STOP.GS Ransomware Operates
Upon infection, STOP.GS Ransomware starts encrypting files using complex algorithms, making it difficult for users to access their data without the decryption key. The malware may also modify file extensions, adding a unique identifier to the encrypted files. In some cases, ransomware displays a ransom note, demanding payment in cryptocurrency for the decryption key. However, paying the ransom does not guarantee that the attackers will provide the key or that the decryption process will be successful.
Symptoms of Infection
Symptoms of a STOP.GS Ransomware infection may include the inability to access files, modified file extensions, and the presence of a ransom note. You may also notice a significant slowdown in system performance or unusual network activity. In some cases, the malware may attempt to spread to other devices connected to the same network, making it essential to isolate the infected system as soon as possible.
How to Remove STOP.GS Ransomware
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for internet access. This will enable you to download and install removal tools.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. This will help identify and remove the malware and any associated files.
- Uninstall any suspicious programs that may have been installed without your knowledge. Be cautious and only remove programs that you are certain are malicious.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings. This will help remove any malicious extensions or settings that may have been altered by the malware.
- Reboot your system and perform another full scan to ensure that all remnants of the malware have been removed. This step is crucial in verifying that the system is clean and that no malware components are still active.
Conclusion
Removing STOP.GS Ransomware requires a combination of technical knowledge and the right tools. By following the steps outlined in this report, you can increase your chances of successfully removing the malware and restoring access to your files. However, prevention is always the best approach. To avoid future infections, ensure that your system and software are up-to-date, use strong antivirus software, and exercise caution when opening emails or downloading files from the internet. Remember, paying the ransom is not a reliable solution and may even encourage further malicious activity. Stay vigilant and take the necessary steps to protect your digital assets.
Analysis Report
General information
| Family Name: | STOP.GS Ransomware |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
da51c6e8a2626edde2b7212a036e148d
SHA1:
c16d8548f4f54283cb1b92bf70371845577fb9db
SHA256:
81A02144644B5748E3339669D47A4C780521EA3FEA9A0E64C2CA6149D5388548
File Size:
721.17 KB, 721166 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- File doesn't have security information
- File has TLS 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
- IMAGE_FILE_DLL is not set inside PE header (Executable)
Show More
- 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 | Sigma Software |
| File Description | NetShield Kit 1.3.28.0 |
| File Version | 1.3.28.0 |
| Internal Name | setup |
| Legal Copyright | 2020 (c) Sigma Software |
| Original Filename | nsk-win32-bundle.exe |
| Product Name | NetShield Kit 1.3.28.0 |
| Product Version | 1.3.28.0 |
File Traits
- CAB (In Overlay)
- Installer Manifest
- Installer Version
- Wix
- WixToolset Installer
- 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: | 1,483 |
|---|---|
| Potentially Malicious Blocks: | 0 |
| Whitelisted Blocks: | 1,483 |
| Unknown Blocks: | 0 |
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.HI
- STOP.GS
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\setup_20250810151419_failed.txt | Generic Write,Read Attributes |
