JSRedir-R is responsible for more than 40% of all drive-by malicious downloads / exploits. This script is found on lot’s of legititmate websites after they have been comprimised (of course). JSRedir-R redirects you to a malicious download as soon as you access the infected webpage.
Your best defense against JSRedir-R is:
- Always installing your Windows updates (always reboot right after).
- A good antivirus with script detecting abilities (Avira Free 9).
- Browsing the internet via a sandbox (Sandboxie…32bit only).
Here is some excellent reading on JSRedir-R and how it all get’s started: