Sunday, January 19, 2014

Preventing ransomware and Malware infections

Avoiding ransomware is much the same as avoiding other types of other malware.

Always run a good antivirus utility and keep Windows and browser-related components (Java, Adobe, and the like) updated. Keep your browser clean to prevent adware invasions that could lead to malware infections. Always, always be wary of unexpected email attachments and spam. (CryptoLocker spreads via .zip files sent as email attachments, for example.)

And just to beat this dead horse one more time: Always have a good backup system in place, just in case your PC does become infected and you can’t recover your files. Yes, it’s that important.

Rescue your PC from ransomware

With the nasty CryptoLocker malware making the rounds—encrypting its victims’ files, and then refusing to provide the unlock key unless a payment of $300 is made via Bitcoin or a prepaid cash voucher—ransomware is back in the spotlight.

You can remove many ransomware viruses without losing your files, but with some variants that isn’t the case. In the past I’ve discussed general steps for removing malware and viruses, but you need to apply some specific tips and tricks for ransomware. The process varies and depends on the type of invader. Some procedures involve a simple virus scan, while others require offline scans and advanced recovery of your files. I categorize ransomware into three varieties: scareware, lock-screen viruses, and the really nasty stuff.