On November 13th, 2021 between 10:30am UTC and 4:30pm UTC, Malwarebytes had a False Positive which quarantined the Backdoor.Quasar file. The file was excluded in our database as of 4:30pm UTC on November 13th, 2021.
- Quarantined Backdoor.Quasar file notifications in your Malwarebytes console.
- Malwarebytes Nebula
- Malwarebytes OneView
A detection rule was in place to target Quasar RAT files, the rule targeted multiple file variants but in testing did not detect any legitimate files.
On November 17th, 2021 at 12:30 UTC, Malwarebytes will automatically restore all quarantined Backdoor.Quasar files.