Trojan.Injector.KZO
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: | 8,995 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 148 |
| First Seen: | April 22, 2022 |
| Last Seen: | June 23, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Injector.KZO on your system indicates a potential security threat that requires immediate attention. This type of threat is designed to infiltrate your computer and carry out malicious activities without your knowledge or consent. It is essential to understand the nature of this threat and take prompt action to remove it and prevent further damage.
Table of Contents
What Is Trojan.Injector.KZO?
Trojan.Injector.KZO is a type of Trojan threat, which is a broad category of malware that can perform a variety of malicious functions. Trojans are often disguised as legitimate software or attachments, allowing them to bypass security measures and gain access to a system. Once inside, they can cause significant harm, including data theft, system compromise, and disruption of normal computer operations.
How Trojan.Injector.KZO Operates
Trojan.Injector.KZO, like other Trojans, operates by exploiting vulnerabilities in software or human error to gain access to a system. It may spread through various means, such as infected email attachments, downloads from untrusted sources, or visits to compromised websites. Once installed, it can communicate with its command and control servers to receive instructions, which may include stealing sensitive information, installing additional malware, or using the infected computer as part of a botnet for malicious activities.
Symptoms of Infection
Identifying a Trojan.Injector.KZO infection can be challenging, as it is designed to remain stealthy. However, there are several signs that may indicate its presence. These include unexpected changes in system behavior, such as slow performance, frequent crashes, or unfamiliar programs running in the background. You might also notice unusual network activity, unexpected pop-ups, or changes in your browser settings. If you suspect that your system is infected, it is crucial to act quickly to minimize potential damage.
How to Remove Trojan.Injector.KZO
- Enter Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all components of the Trojan.
- Uninstall suspicious programs that you do not recognize or that were installed around the time the infection was detected.
- Reset your browsers (Chrome, Firefox, Edge, etc.) to their default settings to remove any malicious extensions or settings changes made by the Trojan.
- Reboot your system and perform another scan to ensure that all malware components have been removed and that your system is clean.
Conclusion
Removing Trojan.Injector.KZO requires careful and immediate action to protect your system and personal data. By following the steps outlined above and maintaining good security practices, such as keeping your software up to date, using strong antivirus protection, and being cautious with emails and downloads, you can significantly reduce the risk of future infections. Remember, vigilance and proactive security measures are key to safeguarding your digital environment.
Analysis Report
General information
| Family Name: | Trojan.Injector.KZO |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
40ac00d8d2d90f8baf578790c16e735e
SHA1:
1e134cfbb7cb80e52cf1368f3800a3d2675e53dd
SHA256:
B679A528C68C4E317718D099ED52F3A7CE2D8F5D7DB78775B23A035946AFA1CD
File Size:
598.02 KB, 598016 bytes
|
|
MD5:
0be1843e43e13b85e719f4825d37fb8d
SHA1:
27f5a379822442f9057245ba026bb728d9b408c7
SHA256:
757D90EFBC4E715962140112FA2D651E8F0149E67696FAF192460C8AA8997254
File Size:
487.42 KB, 487424 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 relocations information
- File doesn't have security information
- File has been packed
- File has TLS information
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
Show More
- File is Native application (NOT .NET application)
- 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 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 |
|---|---|
| Company Name | ION |
| File Version |
|
| Product Name | Calmer |
| Product Version |
|
File Traits
- packed
- WriteProcessMemory
- 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: | 1,933 |
|---|---|
| Potentially Malicious Blocks: | 1 |
| Whitelisted Blocks: | 1,912 |
| Unknown Blocks: | 20 |
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.- Androm.TD
- FareIt.AW
- Injector.KL
- Kryptik.GSJ
- Sadenav.B
Show More
- Trojan.Kryptik.Gen.EKL
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\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.0.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.1.regtrans-ms | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms | 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\relaksacja.pl\calmer::breath in | RegNtPreCreateKey | |
| HKCU\software\relaksacja.pl\calmer::breath out | < | RegNtPreCreateKey |
| HKCU\software\relaksacja.pl\calmer::hold in | RegNtPreCreateKey | |
| HKCU\software\relaksacja.pl\calmer::hold out | RegNtPreCreateKey | |
| HKCU\software\relaksacja.pl\calmer::stay on top | RegNtPreCreateKey | |
| HKCU\software\relaksacja.pl\calmer::menu open | RegNtPreCreateKey | |
| HKCU\software\relaksacja.pl\calmer::enable sounds | 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 |
|
| Network Winsock2 |
|
| Network Winsock |
|
