Home > Threat descriptions >



Category: Malware

Type: Trojan-Downloader

Aliases: Trojan-Downloader:W32/Valenavir.A


Valenavir.A disguises itself as a Valentine's eCard notification. When you click on the link in the notification email, it will redirect you to a page that attempts to persuade users into installing additional malware.


Automatic action

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Knowledge Base

Find the latest advice in our Community Knowledge Base.

About the product

See the manual for your F-Secure product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

Trojan-Downloader:W32/Valenavir.A disguises itself as a Saint Valentine's Day eCard notification.The eCard notification arrives in spammed email. When you click on the link in the email, it will redirect you to a page that asks you to install a fraudulent Adobe Flash Player. The software is supposedly required in order to view the eCard. This fraudulent application is actually a Trojan-Spy that downloads and installs a Trojan-Spy:W32/BZub variant onto the system.Once installed, Valenavir.A connects to:

  • http://www.nownames.org/new/[blocked].php?l=Un

Which redirects to:

  • http://dedmazay.3322.org/images/[blocked].exe.

The attempted download is detected as Trojan-Spy:W32/Bzub.HZ.