Internet users who want to protect their computer against ransomware should install a popup blocker, according to the FBI in a post on their website. The American secret agency reports an increase in ransomware infections on both consumer and enterprise computers.
Ransomware encrypts files on computers rendering them unusable and demands a ransom to decrypt the files. According to the FBI cyber criminals distributing ransomware no longer only use e-mail attachments to try to infect systems but increasingly make use of so called "drive-by downloads".
For drive-by downloads, the attackers use compromised websites to which users are tricked by misleading emails and popup windows. Once a user visits a malicious, compromised website with unpatched software, the malware tries to install itself.
Another development the FBI reports is that the criminals behind the ransomware want to be paid in Bitcoins. Previously they wanted the ransom to be paid with prepaid credit cards, but Bitcoin is no the prefer payment method, according to the FBI due to the anonymity of the digital valuta.
Besides infections on computers, the FBI also reports it has discovered ransomware that locks smartphones. And
In order to be protected against ransomware, the FBI advises internet users to keep their operating system and browser up to date, to install a popup blocker and to only download software from trusted sites. Also unwanted e-mails with attachments shouldn't be opened and the FBI once again stresses the importance of backups.
