Summary
PublicEnemy is a simple Java based trojan that was found in October 1997. The trojan does modifications to any class files that are located in the same directory from which the trojan is executed. PublicEnemy is a trojan not a virus and thus is unable to spread by infecting other Java applications.
Removal
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First, check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Technical Details
When run, PublicEnemy searches the current directory for .class files, and modifies them damaging the file. The .class files damaged by PublicEnemy sometimes remain operational, but should still be restored from backups or reinstalled.
Being Java based trojan the PublicEnemy is capable of executing in almost any platform that has Java runtime environment installed. The trojan is capable of executing on Windows and Linux platforms and in PDA devices which have Java runtime installed.
PublicEnemy is not capable of spreading and it has not been met in the wild. As such, it can not be considered a realistic threat.
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