Trojan-Dropper:OSX/Revir.B drops and executes a backdoor program detected as Backdoor:OSX/Imuler.A, while camouflaging its activity by opening a JPG file to distract the user.
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A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
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Submit a file or URL for further analysis.
Trojan-Dropper:OSX/Revir.B drops a JPG file in the /tmp folder, then opens it to distract the user from noticing any other ongoing activity.
Screenshot of a JPG file dropped by Trojan-Dropper:OSX/Revir.B.
Note that the JPG file in the screenshot above uses the name 'trojan.jpg'. The JPG file will actually use the same name as the trojan-dropper's binary file.
In the background, the malware will drop and execute a backdoor program (detected as Backdoor:OSX/Imuler.A):