Google Firebase Hosting Abused To Deliver Sorillus RAT


  • ransom-4


Adversaries were found abusing Googles Firebase Hosting service to deliver the legitimate Sorillus remote administration tool.

The initial infection vector consisted of phishing emails with malicious attachments.

The attachments contained an HTML file which used the HTML Smuggling technique to infect devices with Sorillus.

The remote tool can steal video keystrokes system information and credentials from web browsers.

SkyWatchSM Alert Legend

  • small-bell


  • active-threat0-lt-green

    Active Threat

  • malware-lt-green


  • ransome-lt-green


  • warning-green


  • file-green


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GLESEC CYBER SECURITY INCIDENT REPORTS are in compliance with the U.S. Department of Homeland Security (DHS) Traffic-Light Protocol (TLP).

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    Disclosure is Not Limited.

  • TLP-Green

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  • TLP-Amber

    Limited Disclosure, restricted to the Participant's Organization.

  • TLP-Red

    Not for Disclosure, Restricted/ Classified - Only Shared with US DHS.

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