Trojan.MSIL.Krypt.ZAJB
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: | 80 % (High) |
| Infected Computers: | 8 |
| First Seen: | October 7, 2023 |
| Last Seen: | November 26, 2025 |
| OS(es) Affected: | Windows |
The detection of Trojan.MSIL.Krypt.ZAJB indicates that a potentially malicious program has been identified on your system. This name suggests a Trojan-type threat, which is a broad category of malware designed to deceive users about its true intentions. Trojans can be used for a variety of malicious purposes, including data theft, espionage, and the unauthorized control of a victim's computer.
Table of Contents
What Is Trojan.MSIL.Krypt.ZAJB?
Trojan.MSIL.Krypt.ZAJB, as indicated by its name, is classified as a Trojan. The specifics of its operation and the exact nature of its payload are not detailed in the detection name itself. However, Trojans are generally known for their ability to disguise themselves as legitimate software, thereby tricking users into installing them. Once installed, they can create backdoors, allowing remote access to the infected computer, steal sensitive information, or install additional malware.
How Trojan.MSIL.Krypt.ZAJB Operates
The exact operational details of Trojan.MSIL.Krypt.ZAJB are not specified, but like other Trojans, it likely operates by exploiting vulnerabilities in software or tricking users into executing it. After gaining access to a system, it could potentially download and install other malicious programs, modify system settings, or engage in other harmful activities. The "MSIL" part of its name suggests it might be written in Microsoft Intermediate Language, which could imply it's designed to run on Windows platforms, but without more specific information, the full scope of its capabilities and targets remains unclear.
Symptoms of Infection
Systems infected with Trojan.MSIL.Krypt.ZAJB may exhibit a range of symptoms, though some infections may not display noticeable signs immediately. Common indicators of a Trojan infection include unusual system behavior, such as unexpected crashes, slow performance, or the appearance of unfamiliar programs and icons. Additionally, users might notice increased network activity, as the malware communicates with its command and control servers or downloads additional malware components. In some cases, the presence of the Trojan might only be discovered through the use of antivirus software.
How to Remove Trojan.MSIL.Krypt.ZAJB
- Enter Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to use the internet to download necessary tools while minimizing system activity.
- Perform a full scan of your system using a reputable antivirus tool, such as SpyHunter. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the Trojan.
- Uninstall any suspicious programs that were installed around the time the infection was noticed. Be cautious and only remove programs you are certain are malicious or unnecessary.
- Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
- Reboot your computer and perform another full scan to ensure that the Trojan and any associated malware have been successfully removed.
Conclusion
The removal of Trojan.MSIL.Krypt.ZAJB requires careful steps to ensure the malware is completely eradicated from the system. It's crucial to use reputable security software and follow best practices for system hygiene, including keeping software up to date, being cautious with email attachments and downloads, and regularly scanning for malware. By taking these steps, users can protect themselves against not just Trojan.MSIL.Krypt.ZAJB, but a wide range of cyber threats. Staying informed and vigilant is key to maintaining a secure digital environment.
Analysis Report
General information
| Family Name: | Trojan.MSIL.Krypt.ZAJB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
e3fe19073fdca683b9d0550e4dbb6199
SHA1:
ecf302d419fde9858161b31f484b9d277bad1ffd
SHA256:
206BD038092FC6B60FEBEE12A7EF66B109E14C0ED29B7E0DBDD61A2029D2062A
File Size:
302.08 KB, 302080 bytes
|
|
MD5:
dbf2fabd66b4dbc7f6f64a1ac734ef91
SHA1:
37742b6e09a40534e1df47c8fee5a6aa29966125
SHA256:
43750A2D8E9828623AE786518ED251B119E3ED43222B10BB4BE7048FEE8B7647
File Size:
298.50 KB, 298496 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 is .NET application
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- 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 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 |
|---|---|
| Assembly Version | 1.0.0.0 |
| File Version | 1.0.0.0 |
| Internal Name |
|
| Original Filename |
|
| Product Version | 1.0.0.0 |
File Traits
- .NET
- NewLateBinding
- ntdll
- RijndaelManaged
- 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: | 253 |
|---|---|
| Potentially Malicious Blocks: | 6 |
| Whitelisted Blocks: | 23 |
| Unknown Blocks: | 224 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
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
|
| User Data Access |
|
| Encryption Used |
|
| Other Suspicious |
|
