STOP.YQAL.NNQP.SHGV.MOIA 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.
| Threat Level: | 100 % (High) |
| Infected Computers: | 6,480 |
| First Seen: | November 29, 2021 |
| Last Seen: | December 31, 2025 |
| OS(es) Affected: | Windows |
The detection of STOP.YQAL.NNQP.SHGV.MOIA Ransomware on a system indicates a serious security threat that requires immediate attention. Ransomware is a type of malware designed to encrypt files on a victim's computer, demanding payment in exchange for the decryption key. This report provides an overview of the threat, its operational methods, symptoms of infection, and steps to remove it from an affected system.
Table of Contents
What Is STOP.YQAL.NNQP.SHGV.MOIA Ransomware?
Ransomware, like STOP.YQAL.NNQP.SHGV.MOIA Ransomware, is a malicious software that uses encryption to hold a victim's data hostage. It typically spreads through phishing emails, exploited vulnerabilities in software, or infected software downloads. Once inside a system, it begins to encrypt files, making them inaccessible to the user. The attackers then demand a ransom, usually in cryptocurrency, in exchange for the decryption key.
How STOP.YQAL.NNQP.SHGV.MOIA Ransomware Operates
The operational methods of STOP.YQAL.NNQP.SHGV.MOIA Ransomware involve exploiting system vulnerabilities to gain access, followed by the encryption of files. This malware can also spread laterally within a network if not contained, encrypting files on other connected devices. The encryption process is typically rapid, and the malware may also attempt to disable system recovery options to prevent victims from restoring their data from backups.
Symptoms of Infection
Symptoms of STOP.YQAL.NNQP.SHGV.MOIA Ransomware infection include the inability to access files, with files often having unusual extensions appended to them. Victims may also find ransom notes left on their desktop or in folders where files have been encrypted, demanding payment for decryption. System slowdowns and unusual network activity can also be indicators of a ransomware infection.
How to Remove STOP.YQAL.NNQP.SHGV.MOIA Ransomware
- Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for internet access. This will make it easier to download and install removal tools.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. This can help identify and remove the malware and other related threats.
- Uninstall any suspicious programs that were installed around the time of the infection. These could be malicious or compromised applications that facilitated the ransomware's entry into your system.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings that the ransomware might have altered.
- Reboot your system and perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed. Regularly updating your operating system, software, and security tools can help prevent future infections.
Conclusion
The STOP.YQAL.NNQP.SHGV.MOIA Ransomware poses a significant threat to data security and integrity. Understanding its operational methods and recognizing the symptoms of infection are crucial for taking prompt action. By following the removal steps outlined above and maintaining good cybersecurity practices, such as regularly backing up data and keeping software up to date, individuals and organizations can protect themselves against this and other ransomware threats. Remember, prevention is key, and vigilance is necessary in the ever-evolving landscape of cybersecurity threats.
Analysis Report
General information
| Family Name: | STOP.YQAL/NNQP/SHGV/MOIA Ransomware |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
dc77fcfd36f9a6c3818abe0fbb6837ca
SHA1:
86bfef990e73998a1b8582765cc12bebd4ef5ff4
SHA256:
E7E6CB85DDE0EE0EF3F7914387B254A06F1599B34BC163E06B114A4B0DCCA81B
File Size:
953.80 KB, 953799 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- 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
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- 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.
File Traits
- big overlay
- HighEntropy
- No Version Info
- 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: | 601 |
|---|---|
| Potentially Malicious Blocks: | 22 |
| Whitelisted Blocks: | 572 |
| Unknown Blocks: | 7 |
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.- Kovter.H
- Kryptik.VCHDB
- Kryptik.ZDG
- Kryptik.ZDI
- Reconyc.N
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- Tinba.A
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:\program files\common files\system\symsrv.dll | Generic Write,Read Attributes |
| c:\program files\common files\system\symsrv.dll.000 | Generic Write,Read Attributes |
| c:\users\user\appdata\local\c0462e1d-c8a6-45a6-8fb4-3f1f5e0fda18\86bfef990e73998a1b8582765cc12bebd4ef5ff4_0000953799 | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\users\user\appdata\local\temp\a1d26e2\ad0bca8162c.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\content\8b2b9a00839eed1dfdccc3bfc2f5df12 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\content\b46811c17859ffb409cf0e904a4aa8f8 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\metadata\8b2b9a00839eed1dfdccc3bfc2f5df12 | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\locallow\microsoft\cryptneturlcache\metadata\b46811c17859ffb409cf0e904a4aa8f8 | 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\5.0\cache\content::cacheprefix | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\cookies::cacheprefix | Cookie: | RegNtPreCreateKey |
| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\history::cacheprefix | Visited: | 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 | |
| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\content::cacheprefix | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\cookies::cacheprefix | Cookie: | RegNtPreCreateKey |
| HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\history::cacheprefix | Visited: | 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 | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\run::syshelper | "C:\Users\Ieshpthf\AppData\Local\c0462e1d-c8a6-45a6-8fb4-3f1f5e0fda18\86bfef990e73998a1b8582765cc12bebd4ef5ff4_0000953799" --Aut | 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 |
|---|---|
| Process Manipulation Evasion |
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