Adware.SigmaShield
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: | 20 % (Normal) |
| Infected Computers: | 95 |
| First Seen: | May 15, 2023 |
| Last Seen: | February 23, 2026 |
| OS(es) Affected: | Windows |
The detection of Adware.SigmaShield on your system indicates the presence of unwanted software that may be compromising your online experience and potentially exposing you to more severe security threats. It is essential to understand the nature of this detection and take appropriate steps to remove it to safeguard your personal data and maintain the integrity of your computer.
Table of Contents
What Is Adware.SigmaShield?
Adware.SigmaShield refers to a type of adware, which is software designed to display unwanted advertisements on your computer, often in the form of pop-ups, banners, or sponsored content within websites. The primary goal of adware is to generate revenue for its creators by forcing users to view advertisements, which can be intrusive and disrupt your browsing experience. While adware is generally considered less dangerous than other types of malware like viruses or trojans, it can still pose a significant nuisance and potentially lead to more severe security issues if not addressed.
How Adware.SigmaShield Operates
Adware.SigmaShield, like other adware programs, operates by infiltrating your system, often through bundled software downloads, deceptive installations, or exploits in web applications. Once installed, it can modify your browser settings, inject advertisements into web pages, and collect data about your browsing habits to tailor the ads to your interests. This data collection aspect raises privacy concerns, as it can include information about the websites you visit, search queries, and other online activities.
Symptoms of Infection
Symptoms of an Adware.SigmaShield infection can vary but commonly include an increase in unwanted advertisements appearing on your computer, including pop-ups, new tabs opening with advertisements, and changes in your browser's homepage or search engine without your consent. Your browser may also become slower, and you might notice that your computer's overall performance has decreased. Additionally, some adware can cause your browser to crash frequently or prevent you from changing certain settings back to their original state.
- Increased number of advertisements on web pages and pop-ups.
- Changes in browser settings, such as a new homepage or default search engine.
- Slowing down of the browser or the entire system.
- Frequent crashing of the browser.
How to Remove Adware.SigmaShield
- Boot your computer in Safe Mode with Networking to prevent the adware from loading and to make it easier to remove.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the adware.
- Uninstall any suspicious programs that you do not recognize or that were installed around the time the symptoms started appearing.
- Reset your web browsers (Google Chrome, Mozilla Firefox, Microsoft Edge, etc.) to their default settings to remove any changes made by the adware.
- Reboot your computer and perform another scan with your anti-malware tool to ensure that all remnants of the adware have been removed.
Conclusion
Removing Adware.SigmaShield requires careful attention to detail and a systematic approach to ensure that all components of the adware are eliminated from your system. By following the steps outlined above, you should be able to remove the adware and restore your computer to its normal functioning state. It's also crucial to adopt good browsing habits and keep your software up to date to prevent future infections. Regularly scanning your system for malware and being cautious when downloading software or clicking on links can significantly reduce the risk of adware and other types of malware infections.
Analysis Report
General information
| Family Name: | Adware.SigmaShield |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
7048e1a3289fbf7f5d765b762de7d579
SHA1:
b6dafb6658784cb4e790341fd2c714f808a44b33
SHA256:
B3BABBA320077C1E00035A97F49F03DA1C3430746D61ED094EB37849AAB30991
File Size:
721.19 KB, 721193 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 1.3.30.0 |
| File Version | 1.3.30.0 |
| Internal Name | setup |
| Legal Copyright | 2020 (c) Sigma Software |
| Original Filename | nsk-win32-bundle.exe |
| Product Name | NetShield Kit 1.3.30.0 |
| Product Version | 1.3.30.0 |
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
