Winter Web
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: | 11,916 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 2,122 |
| First Seen: | April 13, 2015 |
| Last Seen: | September 24, 2025 |
| OS(es) Affected: | Windows |
Winter Web's name has nothing to do with its real functions. Winter Web is an advertisement-related adware platform that has as its primary objective to display tons of advertisements on the Web pages favored by the computer users. Winter Web may be introduced into a computer bundled with freeware downloaded from the Web. Once installed, Winter Web may make changes to the browser settings and install threatening plugins on the computer. Winter Web may allow the entrance of additional adware, PUPs and more severe threats. The computer user's browsing information may be leaked by Winter Web, and the affected machine may lose speed and present a poor performance. The sooner Winter Web is removed from an affected computer, the better. Winter Web should be deleted with a malware remover.
Table of Contents
Analysis Report
General information
| Family Name: | Trojan.Kryptik.BNA |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
54ba5ec4f7b8b767f5e94e8df77a02c5
SHA1:
a152433eae7f2d04c3accd5188547cff9cd7ab57
SHA256:
2DB96A1D2769C8D2C35E0E9D52F309E2700F6016D613EE4CF7270F2EFB60D1A0
File Size:
3.78 MB, 3777784 bytes
|
|
MD5:
16129674b01b7bc5a1281e1e28b5d8e0
SHA1:
51d98b08c5da83c30cb76c1c44ca238955f6476f
SHA256:
80F050C3EE34976F0304CF2E27086DE981A5ECC21748855635D6E079DA0C0304
File Size:
746.50 KB, 746496 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 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)
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- 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 |
|---|---|
| Builder | host 14:16:49 28/07/2023 |
| Comments | http://www.sminstall.com/ |
| Company Name | InstallBuilders |
| Created | 7z SFX Constructor v4.5.0.0 (http://usbtor.ru/viewtopic.php?t=798) |
| File Description |
|
| File Version | 5.0.4.10 |
| File Versions | 21.41.85.6 |
| Internal Name |
|
| Legal Copyright | InstallBuilders |
| Legal Trademarks | Shareware |
| Original Filename | sim.exe |
| Original Filenames | Odilemia |
| Product Name | Smart Install Maker |
| Product Version | 5.0.4.10 |
| Product Versions | 17.21.14.17 |
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 |
|---|---|---|
| Smart | Smart | Self Signed |
| Smart | Smart | Self Signed |
File Traits
- HighEntropy
- 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: | 547 |
|---|---|
| Potentially Malicious Blocks: | 13 |
| Whitelisted Blocks: | 530 |
| Unknown Blocks: | 4 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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\roaming\kmsauto\kmsauto net.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\kmsauto\kmsauto net.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\roaming\kmsauto\megasync.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\kmsauto\megasync.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\roaming\kmsauto\script.vbs | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\kmsauto\script.vbs | Synchronize,Write Attributes |
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\applicationassociationtoasts::vbsfile_.vbs | RegNtPreCreateKey | |
| HKCU\local settings\software\microsoft\windows\shell\muicache::c:\windows\system32\wscript.exe.friendlyappname | Microsoft ® Windows Based Script Host | RegNtPreCreateKey |
| HKCU\local settings\software\microsoft\windows\shell\muicache::c:\windows\system32\wscript.exe.applicationcompany | Microsoft Corporation | RegNtPreCreateKey |
| 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 | |
| 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 |
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| 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 |
|---|---|
| Anti Debug |
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| User Data Access |
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