Trojan.RustCrypter.A
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: | 12,658 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 6 |
| First Seen: | October 9, 2025 |
| Last Seen: | May 3, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.RustCrypter.A on your system indicates a potential security threat that requires immediate attention. This Trojan-type threat can compromise your computer's security and put your personal data at risk. It is essential to understand the nature of this threat and take prompt action to remove it from your system.
Table of Contents
What Is Trojan.RustCrypter.A?
Trojan.RustCrypter.A is a type of malware that can infect your computer without your knowledge or consent. The name "Trojan" refers to the fact that this malware can disguise itself as a legitimate program or file, allowing it to bypass your system's security defenses. The term "RustCrypter" may suggest that this malware uses encryption or other evasion techniques to hide its activities, but without more specific information, it's difficult to determine the exact nature of this threat.
How Trojan.RustCrypter.A Operates
Once installed on your system, Trojan.RustCrypter.A can operate in various ways, depending on its intended purpose. It may attempt to steal sensitive information, such as login credentials, credit card numbers, or other personal data. It can also create backdoors, allowing remote access to your system, or download and install additional malware. In some cases, Trojan.RustCrypter.A may be used to recruit your computer into a botnet, a network of infected machines used for malicious activities such as spamming, phishing, or distributed denial-of-service (DDoS) attacks.
Symptoms of Infection
The symptoms of a Trojan.RustCrypter.A infection can vary, but common signs include slow system performance, unexpected pop-ups or advertisements, and unfamiliar programs or icons on your desktop. You may also notice that your browser homepage or search engine has been changed without your consent, or that your system is experiencing frequent crashes or freezes. In some cases, you may not notice any symptoms at all, which is why regular system scans and monitoring are essential for detecting and removing malware.
How to Remove Trojan.RustCrypter.A
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of Trojan.RustCrypter.A.
- Uninstall any suspicious programs or applications that may be related to the malware infection.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your system and perform a follow-up scan to ensure that all remnants of the malware have been removed.
Conclusion
Removing Trojan.RustCrypter.A from your system requires a combination of technical expertise and caution. By following the steps outlined above and using reputable removal tools, you can help ensure that your system is free from this malware and any associated threats. It's also essential to practice good security habits, such as regularly updating your operating system and software, using strong passwords, and avoiding suspicious downloads or email attachments, to prevent future infections and protect your personal data.
Analysis Report
General information
| Family Name: | Trojan.RustCrypter.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a546a5bdce2352e2ef32a1069c19e47e
SHA1:
399f4067f43c04116d83dc3b5ddae85eaa7240ba
SHA256:
1A6B5E0873675F0892F8E52103CF96A17052E7D980A2D258D9E76A3E16893EFA
File Size:
1.52 MB, 1515403 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 resources
- File doesn't have security information
- File has TLS information
- File is 64-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
Show More
- 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 Traits
- big overlay
- HighEntropy
- 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: | 4,088 |
|---|---|
| Potentially Malicious Blocks: | 539 |
| Whitelisted Blocks: | 3,549 |
| 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.- ShellcodeRunner.LLB
- ShellcodeRunner.THA
- ShellcodeRunner.THB
- Trojan.Agent.Gen.BTQ
- Trojan.Filecoder.Gen.DB
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 |
|---|---|
| \device\namedpipe | Generic Write,Read Attributes |
| c:\rust crypter - infected machine\399f4067f43c04116d83dc3b5ddae85eaa7240ba_0001515403 | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
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 |
|---|---|---|
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | �g�ӭ�� | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | �c.ԭ�� | RegNtPreCreateKey |
| HKCU\software\microsoft\windows\currentversion\run::rustcrypter | C:/Rust Crypter - INFECTED MACHINE/399f4067f43c04116d83dc3b5ddae85eaa7240ba_0001515403.exe | 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 |
|---|---|
| Syscall Use |
Show More
|
| Process Manipulation Evasion |
|
| Process Shell Execute |
|
| Anti Debug |
|
| User Data Access |
|
| Process Terminate |
|
Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\system32\attrib.exe "attrib" +h "C:/Rust Crypter - INFECTED MACHINE"
|
C:\WINDOWS\system32\attrib.exe "attrib" +h "C:/Rust Crypter - INFECTED MACHINE\399f4067f43c04116d83dc3b5ddae85eaa7240ba_0001515403"
|
