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Short bio

OSX.OceanLotus is Malwarebytes’ detection name for a backdoor that is specifically targeting MacOS systems.

Type and source of infection

OSX.OceanLotus is a general purpose backdoor attributed to a Vietnamese APT. It is spread through malicious documents with an obfuscated macro that triggers a dropper, which in turn fetches the backdoor as the final payload.


Even though OSX.OceanLotus is believed to be part of a targeted attack, a backdoor opens up an affected system to additional malware, so it’s impossible to say if OSX.OceanLotus will be the only malware to be found on an infected system.


Malwarebytes for Mac detects and removes OSX.OceanLotus.


Malwarebytes for Mac will detect and remove the components of this malware.

Download and install the latest version of Malwarebytes for Mac.

Click the “Scan Now” button to perform a system scan.

If threats are detected during the scan, a count of detected threats is displayed. More detailed threat information is displayed after the scan completes.

Click “Confirm” to move the detected threats to Quarantaine.

If a restart is required to complete remediation of threats detected during a scan, you will be notified. When a restart is required, please remember to save all work before clicking “Restart”.