Trojan.Agent.KOEB
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: | 1,747 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 141 |
| First Seen: | April 23, 2026 |
| Last Seen: | July 25, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Agent.KOEB on your system indicates a potential security threat. This detection name suggests a type of malicious software, but without more specific information, it's essential to understand the general characteristics of such threats and how to address them. The term "Trojan" refers to a broad category of malware that disguises itself as legitimate software, allowing it to infiltrate computer systems without being detected by traditional security measures.
Table of Contents
What Is Trojan.Agent.KOEB?
Trojan.Agent.KOEB, as indicated by its name, falls under the Trojan category of malware. Trojans are known for their ability to create backdoors on infected systems, allowing attackers to access the system remotely. They can be used for a variety of malicious purposes, including data theft, installation of additional malware, and exploitation of system resources. The specific capabilities and intentions of Trojan.Agent.KOEB would depend on its design and the goals of its creators, but like other Trojans, it poses a significant risk to the security and integrity of infected systems.
How Trojan.Agent.KOEB Operates
Malware like Trojan.Agent.KOEB typically operates by exploiting vulnerabilities in software or human behavior to gain unauthorized access to a system. Once inside, it can modify system settings, disable security software, and communicate with its command and control servers to receive further instructions. The exact mechanisms used by Trojan.Agent.KOEB can vary, but common tactics include phishing emails, infected software downloads, and exploitation of unpatched vulnerabilities in operating systems or applications.
Symptoms of Infection
Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common indicators include unusual system behavior, such as unexpected pop-ups, slow system performance, and unfamiliar programs or toolbars in your web browser. In some cases, Trojans can lead to more severe issues, such as data loss, identity theft, or the compromise of sensitive information. If you suspect your system is infected, it's crucial to take prompt action to minimize potential damage.
How to Remove Trojan.Agent.KOEB
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the malware.
- Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time of the suspected infection.
- Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the malware.
- Reboot your system and run another full scan with your anti-malware tool to ensure that all components of the malware have been removed.
Conclusion
Dealing with a malware infection like Trojan.Agent.KOEB requires careful and immediate action. By understanding how such threats operate and following a systematic approach to removal, you can protect your system and data from further harm. It's also essential to adopt preventive measures, including keeping your operating system and software up to date, using strong antivirus protection, and being cautious when opening emails or downloading software from the internet. Remember, vigilance and proactive security practices are key to maintaining a secure computing environment.
Analysis Report
General information
| Family Name: | Trojan.Agent.KOEB |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
3d1809f4b2f3a0b27a61e7b8edf4d7b2
SHA1:
2aaf992faf60e7343d54ddaf24b4dc495e93630d
SHA256:
02B12F059D2980623AF3DFE64F04AD4328B4D550E647BC2BF45CD5DC8C3F9211
File Size:
2.10 MB, 2098113 bytes
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MD5:
3d1869536c4b48d88f83c24d51cfb97e
SHA1:
85774dc6350415fec78c63882d14baffc8de7faa
SHA256:
DB0B0464AEB6EEF967465FDA116E313E07EAC8019E21C09249E53FD40CB59415
File Size:
2.10 MB, 2098163 bytes
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MD5:
9acd6bc3d927da8ca9d330933e6ea0cd
SHA1:
0d0480950858c22610cd3bacf1ee171974a93a53
SHA256:
D22D440CFED132C0E3AC33A2564617B03A4654366417C78ADE786CB6C6DE8C90
File Size:
2.10 MB, 2098380 bytes
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MD5:
c4adb93ca7a17d821c2601c5af79474e
SHA1:
fe753f5d5d474106be4290691253ed113b24e478
SHA256:
7298A467712DFC54227E3B4D4BBEA2502C3375DECCD364531AFD1019E4B1BDF9
File Size:
2.10 MB, 2097808 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have security information
- File has exports table
- 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
Show More
- 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 |
|---|---|
| Comments | This installation was built with Inno Setup. |
| File Description |
|
| File Version | 1.0.0.0 |
| Legal Copyright |
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| Product Name |
|
| Product Version | 1.0.0.0 |
File Traits
- 2+ executable sections
- Inno
- InnoSetup Installer
- Installer Manifest
- Installer Version
- VirtualQueryEx
- 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: | 2,288 |
|---|---|
| Potentially Malicious Blocks: | 1 |
| Whitelisted Blocks: | 2,287 |
| 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.- Agent.KOEB
- Injector.FZD
- Innomod.A
- PSW.Delf.A
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\is-1a6c0lzo3v.tmp\2aaf992faf60e7343d54ddaf24b4dc495e93630d_0002098113.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\is-7k9es44opa.tmp\_isetup\_setup64.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\is-eiukc9xglu.tmp\_isetup\_setup64.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\is-haagngaavq.tmp\85774dc6350415fec78c63882d14baffc8de7faa_0002098163.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\is-k1b66jojlz.tmp\_isetup\_setup64.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\is-qannu02vuy.tmp\_isetup\_setup64.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\users\user\appdata\local\temp\is-r4bcudndeh.tmp\fe753f5d5d474106be4290691253ed113b24e478_0002097808.tmp | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\is-u6tiwupmrv.tmp\0d0480950858c22610cd3bacf1ee171974a93a53_0002098380.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 |
|---|---|
| Process Manipulation Evasion |
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| Process Shell Execute |
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| User Data Access |
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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:\Users\Aiwqvrps\AppData\Local\Temp\is-1A6C0LZO3V.tmp\2aaf992faf60e7343d54ddaf24b4dc495e93630d_0002098113.tmp" /SL5="$270396,893952,893952,C:\Users\user\Downloads\2aaf992faf60e7343d54ddaf24b4dc495e93630d_0002098113"
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"C:\Users\Svepuawb\AppData\Local\Temp\is-HAAGNGAAVQ.tmp\85774dc6350415fec78c63882d14baffc8de7faa_0002098163.tmp" /SL5="$90318,893952,893952,C:\Users\user\Downloads\85774dc6350415fec78c63882d14baffc8de7faa_0002098163"
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"C:\Users\Vvsizajc\AppData\Local\Temp\is-U6TIWUPMRV.tmp\0d0480950858c22610cd3bacf1ee171974a93a53_0002098380.tmp" /SL5="$9047C,893952,893952,C:\Users\user\Downloads\0d0480950858c22610cd3bacf1ee171974a93a53_0002098380"
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"C:\Users\Cbqfbnmr\AppData\Local\Temp\is-R4BCUDNDEH.tmp\fe753f5d5d474106be4290691253ed113b24e478_0002097808.tmp" /SL5="$F0294,893952,893952,C:\Users\user\Downloads\fe753f5d5d474106be4290691253ed113b24e478_0002097808"
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