J_Target
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Notice & Apology

We released J_Target (v1.08) on May 15, 2025. However, several users have reported receiving the following warning message when attempting to download the ZIP file:
“This file contains a virus. Only the owner is allowed to download infected files.”

Upon investigation, we found that the file properties of the executable (.exe) had been corrupted.
This likely triggered Google's server to detect the file as potentially tampered with.

As a solution, we rebuilt the project and re-uploaded it to the Google server. After doing so, the warning message no longer appears, and the download is now working properly.

To distinguish the fixed version from the previous one, we have renamed the ZIP file to:
J_Target_v1_08_en-2.zip

We sincerely apologize for the inconvenience this may have caused.

If you encounter any further issues, please use the contact form available on the “Home” page of this site.

Finally, we would like to express our deep appreciation to the user who brought this issue to our attention.

June 26, 2025
Ju-yu-yun

Notice & Apology #2

We have received reports from users that the file re-released on June 22, 2025, titled "J_Target_v1_08_jp-2.zip", is once again triggering similar warning messages.

We conducted an investigation, but unfortunately, we were unable to identify the cause of the issue this time.

Although the file contents remain unchanged, we have re-released it under the new name "J_Target_v1_08_jp-3.zip" and will continue to monitor the situation carefully.

While it is possible to avoid detection by Google’s servers by distributing the file as a password-protected ZIP archive, we have decided not to take this approach, as it does not fundamentally resolve the issue.

We sincerely apologize for the inconvenience this may have caused.

If you encounter any other problems not related to this issue, please contact us using the submission form available on the Home page.

Lastly, we would like to express our sincere gratitude to the user who brought this matter to our attention.

July 23, 2025
Ju-yu-yun

[Report] Regarding Security Warnings on Download

Since the re-release on June 22, 2025, some users have reported that the file cannot be downloaded due to security warnings flagging it as containing a virus. I have investigated this issue and would like to report my findings below.

[Investigation Results]

The executable file was processed with ConfuserEx for obfuscation. It has been determined that certain security software mistakenly flags this as a virus pattern because the obfuscated code structure resembles that of malicious software. Please be assured that this is a false positive—the application is safe and does not contain any malicious code.

    Verification Method: VirusTotal
    Target Software: J_Target_v1_09
    Results: Without obfuscation: 0 / 71
ConfuserEx (Level: Minimum): 7 / 71
ConfuserEx (Level: Normal): 8 / 71

[Future Measures]

From the perspective of protecting the code, I intend to continue using obfuscation. To ensure that users can download the application without triggering security warnings, I will provide the files as password-protected ZIP files starting from now on.

I apologize for any inconvenience this may cause and appreciate your understanding. If you encounter any other issues, please feel free to contact me via the feedback form located on the "Home" page.

Finally, I would like to express my sincere gratitude to the users who brought this issue to my attention.

June 8, 2026
Ju-yu-yun