Backdoor.Agent.OJB
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: | 26,659 |
| Threat Level: | 60 % (Medium) |
| Infected Computers: | 4 |
| First Seen: | January 12, 2026 |
| Last Seen: | May 31, 2026 |
| OS(es) Affected: | Windows |
The detection of Backdoor.Agent.OJB on your system indicates a potential security threat that requires immediate attention. This backdoor threat can compromise the security and integrity of your computer, allowing unauthorized access and potentially leading to further malicious activities. It is essential to understand the nature of this threat and take prompt action to remove it and secure your system.
Table of Contents
What Is Backdoor.Agent.OJB?
Backdoor.Agent.OJB is a type of malware that creates a covert communication channel between your computer and a remote server, allowing hackers to access and control your system without your knowledge or consent. This backdoor can be used to steal sensitive information, install additional malware, or use your computer as a botnet to carry out malicious activities. The name Backdoor.Agent.OJB suggests that it is a backdoor threat, but the specific characteristics and behaviors of this malware are not well-documented, making it challenging to provide detailed information about its origins or intentions.
How Backdoor.Agent.OJB Operates
Backdoor.Agent.OJB operates by establishing a secret connection between your computer and a command and control (C2) server, which allows hackers to send commands and receive data from your system. This connection can be used to upload and download files, execute commands, and steal sensitive information such as login credentials, credit card numbers, or personal data. The backdoor can also be used to install additional malware, such as keyloggers, ransomware, or spyware, which can further compromise the security of your system.
Symptoms of Infection
The symptoms of a Backdoor.Agent.OJB infection can be subtle and may not be immediately apparent. However, some common indicators of a backdoor infection include unusual network activity, slow system performance, and unexplained changes to system settings or files. You may also notice that your computer is behaving erratically, such as crashing or freezing frequently, or that your antivirus software is detecting and blocking suspicious activity. If you suspect that your system has been infected with Backdoor.Agent.OJB, it is essential to take immediate action to remove the threat and prevent further damage.
How to Remove Backdoor.Agent.OJB
- Boot your computer in Safe Mode with Networking to prevent the backdoor from loading and to allow you to download and install removal tools.
- Run a full scan with a reputable anti-malware tool, such as SpyHunter, to detect and remove the backdoor and any associated malware.
- Uninstall any suspicious programs or applications that may be related to the backdoor infection.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
- Reboot your computer and run another full scan with your anti-malware tool to ensure that the backdoor has been completely removed.
Conclusion
Removing Backdoor.Agent.OJB from your system requires careful attention to detail and a thorough understanding of the removal process. By following the steps outlined above, you can help to ensure that the backdoor is completely removed and that your system is secure. However, it is also essential to take steps to prevent future infections, such as keeping your operating system and software up to date, using strong antivirus software, and being cautious when opening email attachments or clicking on links from unknown sources. By taking a proactive approach to system security, you can help to protect your computer and your personal data from the threats posed by backdoors like Backdoor.Agent.OJB.
Analysis Report
General information
| Family Name: | Backdoor.Agent.OJB |
|---|---|
| Signature status: | Root Not Trusted |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
cb8cbe4ee303fb44eb6db7a68a9991c8
SHA1:
a1d543dec8dbdeeb79c3667f83c1494c2e06d094
SHA256:
26F0105F827B46AB85C7B99481794464D2EC2548B96DA48522ED36A8A8B844B5
File Size:
1.47 MB, 1467936 bytes
|
|
MD5:
4643e25c705c3f8f25833f6cb67c5393
SHA1:
bf8769597dff3d7f6389b960b87145ef52d1a693
SHA256:
0351D4ABDE45408DCB0F1E3DB451935FB57FAFE74538A1529ED2938967554215
File Size:
1.38 MB, 1379880 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have exports table
- 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)
- 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 |
|---|---|
| File Description |
|
| File Version | 2025.10.186 |
| Product Name |
|
| Product Version | 2025.10.186 |
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| Flagship Promotion s. r. o. | SSL.com EV Root Certification Authority RSA R2 | Root Not Trusted |
File Traits
- HighEntropy
- 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: | 4,082 |
|---|---|
| Potentially Malicious Blocks: | 111 |
| Whitelisted Blocks: | 3,939 |
| Unknown Blocks: | 32 |
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.KII
- Agent.OJD
- Kryptik.JUE
- Trojan.Filecoder.Gen.AA
- Vimditator.I
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\1414b034-170e-457d-a0f4-41edb2472343.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\324a39d3-4a17-49a1-aa79-59bfc65233c7.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\64be971d-9216-432b-9263-60277f96fdfb.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\967fba26-13ed-4df5-882b-1c3d54a9990a.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\d7d6dbd5-1950-40dc-a4ce-6a990a56e9d9.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\f843b534-3e4f-4c23-98b6-fdd826919729.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\fe49e891-7dac-4db4-b5bc-fbffcf6c8730.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\ffab4526-fe9a-4f66-bbdd-5c1d24e0fd59.tmp | Generic Write,Read Attributes |
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
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| Cert Store Read |
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| Network Winsock2 |
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| Network Winsock |
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