Stolen Certificate Used to Spread Malware
The company Opera Software said that last week held a large-scale attack cracks on its internal network. In this case, have not been compromised users' personal data. Instead, hackers stole an expired certificate that was used to distribute malicious software.
"June 19 we found and stopped the attack on our internal network. Systems have been completely cleaned and there is no evidence to suggest that these people were kidnapped "- written by representatives of the Opera in the company's official blog.
However, the hackers gained access to one outdated certificate Opera, which was used to sign malicious software and distribute it over the network. According to estimates Opera, from the activities of attackers suffered about a few thousand people who use the Opera browser on June 19. In the near future, the company will release a special version of the Opera with a new code certification.
A malicious program that blocks antivirus software, called Mal / Zbot-FG. It is this infected file was published on an internal server Opera and automatically installed on computers of thousands of users.
Opera advises users to completely refresh the browser, as well as anti-virus program to scan your computer. Recall that last month, Opera completely revised version of its browser for desktop computers and released a trial-version software for Windows and Mac.