Trojan.Crysteb.AC
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: | 22,087 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 272 |
| First Seen: | April 13, 2021 |
| Last Seen: | June 7, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Crysteb.AC on your system indicates a potential security threat that requires immediate attention. This report provides an overview of the threat, its operating methods, symptoms of infection, and steps to remove it from your system.
Table of Contents
What Is Trojan.Crysteb.AC?
Trojan.Crysteb.AC is a type of malware that can compromise the security and integrity of your computer system. The term "Trojan" refers to a broad category of malicious software that disguises itself as legitimate software, allowing it to bypass security defenses and gain unauthorized access to a system. The specifics of Trojan.Crysteb.AC, such as its origins and exact behaviors, may vary, but its classification as a Trojan indicates it is designed to cause harm or exploit system vulnerabilities.
How Trojan.Crysteb.AC Operates
Trojan.Crysteb.AC, like other Trojans, is likely designed to operate stealthily, attempting to evade detection by security software. It may exploit vulnerabilities in software or use social engineering tactics to trick users into installing it. Once installed, it can perform a variety of malicious actions, including but not limited to, stealing sensitive information, installing additional malware, or providing unauthorized access to the infected system. The exact operations of Trojan.Crysteb.AC can depend on its specific design and the intentions of its creators.
Symptoms of Infection
Symptoms of a Trojan.Crysteb.AC infection can vary widely, as Trojans are highly customizable and can be designed to perform a range of malicious activities. Common symptoms include unexpected changes to system settings, unusual network activity, slower system performance, and the appearance of unwanted programs or files. In some cases, the infection may not exhibit noticeable symptoms, making regular system scans crucial for detection.
How to Remove Trojan.Crysteb.AC
- Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to access the internet, which is necessary for downloading or updating anti-malware tools.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated to the latest version to increase the chances of detecting and removing the malware.
- Uninstall suspicious programs that were installed around the time the malware was detected. Be cautious and only remove programs you do not recognize or no longer need.
- Reset your web browsers, such as Chrome, Firefox, or Edge, to their default settings. This step can help remove any malicious extensions or settings changes made by the malware.
- Reboot your system and perform another scan to ensure that the malware has been successfully removed. Rebooting in normal mode allows your system to start with a clean slate, and the follow-up scan can catch any remnants that might have been missed initially.
Conclusion
The removal of Trojan.Crysteb.AC requires careful and systematic steps to ensure the malware is completely eradicated from your system. It's crucial to remain vigilant and take proactive measures to prevent future infections, including keeping your operating system and software up to date, using strong antivirus software, and practicing safe browsing habits. Regular system scans and backups can also help in early detection and recovery from malware infections. By following the steps outlined in this report and maintaining good cybersecurity practices, you can protect your system and data from threats like Trojan.Crysteb.AC.
Analysis Report
General information
| Family Name: | Trojan.Crysteb.AC |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
c14f574ca2f99172e92e9a73ff6496b7
SHA1:
addcb9bca19e0b2c1673a3ec048b97c6f01e3092
SHA256:
EC5ED67324CFD19FDD185E90FD005DBA435A947F3AC1A1162D1B771B1CA5696C
File Size:
5.31 MB, 5312000 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 Traits
- 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: | 5,878 |
|---|---|
| Potentially Malicious Blocks: | 860 |
| Whitelisted Blocks: | 5,018 |
| 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.- Crysteb.AC
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\769.tmp | Generic Write,Read 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\system\currentcontrolset\control\mediaproperties\privateproperties\directinput\vid_0627&pid_0001\calibration\0::guid | ᛰɔ셝ᇰƀ䕄呓 | RegNtPreCreateKey |
| HKCU\software\microsoft\directinput\addcb9bca19e0b2c1673a3ec048b97c6f01e3092_00053120005ef7f68100510e00::name | ADDCB9BCA19E0B2C1673A3EC048B97C6F01E3092_0005312000 | RegNtPreCreateKey |
| HKCU\software\microsoft\directinput\addcb9bca19e0b2c1673a3ec048b97c6f01e3092_00053120005ef7f68100510e00::usesmapper | RegNtPreCreateKey | |
| HKCU\software\microsoft\directinput\mostrecentapplication::name | ADDCB9BCA19E0B2C1673A3EC048B97C6F01E3092_0005312000 | RegNtPreCreateKey |
| HKCU\software\microsoft\directinput\mostrecentapplication::id | ADDCB9BCA19E0B2C1673A3EC048B97C6F01E3092_00053120005EF7F68100510E00 | RegNtPreCreateKey |
| HKCU\software\microsoft\directinput\mostrecentapplication::version | ࠀ | RegNtPreCreateKey |
| HKCU\software\microsoft\directinput\mostrecentapplication::mostrecentstart | 饻틏喬ǜ | 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 |
|
| User Data Access |
|
