Variants in the Trojan-Downloader:Java/Openstream family are Java applet-based programs that when executed will download and install additional files onto the system.
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 detection database 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.
For more Support
Find the latest advice in our Community Knowledge Base.
See the user guide for your product on the Help Center.
Chat with or call an expert for help.
Submit a file or URL for further analysis.
Openstream variants typically arrive in a Java JAR file, which the user may need to install and execute before it can perform its silent downloading routine. For a representative example of an Openstream malware, please see the Openstream.T description.
Openstream variants may also be silently installed on the system if the system has a Java installation with a known, unpatched vulnerability that may be exploited. For more information about Java exploits, please see: