Hackers introduce a new malicious software called “Frebniss” in the Microsoft Internet Information Services (IIS) services. The program secretly executes commands sent through web checks.
Frebniis was discovered by the Symantec Threat Hunter Team command, which said that unknown attackers are currently using this harm to Taiwanese goals.
In the attacks noticed by Symantec, hackers use the IIS function called “Buerization of the events of unsuccessful queries” (Freb), which is responsible for collecting metadata requests (IP addresses, headlines
/Media reports cited above.