HolyCat.A 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: | 1 |
| First Seen: | May 26, 2025 |
| Last Seen: | February 27, 2026 |
| OS(es) Affected: | Windows |
The detection of HolyCat.A 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. It's essential to understand the nature of this threat and take prompt action to remove it and prevent further damage.
Table of Contents
What Is HolyCat.A Ransomware?
HolyCat.A Ransomware is a malicious program that infects computers and encrypts files, making them inaccessible to the user. The primary goal of ransomware is to extort money from victims by offering to restore access to their files in exchange for a ransom payment. The name "HolyCat.A Ransomware" suggests that it is a specific variant of ransomware, but its behavior and characteristics are consistent with other ransomware threats.
How HolyCat.A Ransomware Operates
Ransomware like HolyCat.A typically spreads through phishing emails, exploited vulnerabilities, or infected software downloads. Once inside a system, it begins to scan for files to encrypt, often targeting common file types such as documents, images, and videos. The encryption process can happen rapidly, leaving the user with little time to react. In some cases, ransomware may also attempt to spread to other connected devices or networks, increasing the potential for damage.
Symptoms of Infection
Common symptoms of a HolyCat.A Ransomware infection include the inability to access files, the presence of ransom demands or threatening messages, and slowed system performance. You may also notice unusual network activity or unfamiliar processes running in the background. If you suspect that your system has been infected with HolyCat.A Ransomware, it's crucial to act quickly to minimize the damage and prevent the malware from spreading further.
How to Remove HolyCat.A Ransomware
- Boot your system 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 ransomware and any associated malware.
- Uninstall any suspicious programs or applications that may be related to the infection. Be cautious when removing programs, as some may be legitimate or even system-critical.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings. This can help remove any malicious extensions or settings that may have been installed by the ransomware.
- Reboot your system and perform another full scan to ensure that the ransomware has been completely removed. It's also a good idea to scan any external devices or networks that may have been connected to the infected system.
Conclusion
Removing HolyCat.A Ransomware requires a combination of technical expertise and caution. It's essential to follow the steps outlined above and to be patient, as the removal process can take time. Remember to always prioritize caution when dealing with malware, and never pay the ransom, as this can encourage further malicious activity. By taking prompt action and using the right tools, you can help protect your system and prevent the spread of this and other ransomware threats.
Analysis Report
General information
| Family Name: | HolyCat.A Ransomware |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
bd23400099bb0d3d3569eb78de182e0f
SHA1:
8a8cc2612e9c0d78b4d6995cd606ed0228ad8312
SHA256:
A77038CD3C18556277B80A4DEF832A7716857D9B9651DD4CB6D9E34BD3317289
File Size:
2.22 MB, 2219289 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 security information
- File has TLS information
- File is 64-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is Native application (NOT .NET application)
- File is not packed
Show More
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Traits
- big overlay
- No Version Info
- ntdll
- x64
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: | 4,621 |
|---|---|
| Potentially Malicious Blocks: | 0 |
| Whitelisted Blocks: | 4,621 |
| 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.GJR
- Filecoder.IFC
- Filecoder.XNA
- Gamehack.DSF
- HolyCat.B
Show More
- RustCrypter.A
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 |
|---|---|
| Syscall Use |
Show More
|
