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Backdoor:OSX/Olyx.C

Detection Names:Backdoor:OSX/Olyx.C
MAC.OSX.Trojan.Lamadai.B
Category:Malware
Type:Backdoor
Platform:OS X

Summary

Backdoor:OSX/Olyx.C connects to a remote server to receive further instructions, without the knowledge or permission from the user.

Disinfection

Manual Removal Instructions

  1. 1. Open Activity Monitor, select DockLight, and click Quit Process.
  2. 2. Open Terminal, then execute the following:
    • sudo rm /Applications/Automator.app/Contents/MacOS/DockLight
    • rm ~/Library/LaunchAgents/com.apple.DockActions.plist

Protection

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Additional Details

Arrival

Olyx.C is dropped into the system by malicious Word documents that exploit the vulnerability identified by CVE-2009-0563.



Installation

The malware drops the following copy of itself:

  • /Applications/Automator.app/Contents/MacOS/DockLight

It creates the following launchpoint for the file above:

  • ~/Library/LaunchAgents/com.apple.DockActions.plist


Payload

The malware connects to a 2012[...].slyip.net[...] to obtain additional commands.

The backdoor is capable of performing the following actions:

  • Downloading and uploading files
  • Executing shell commands


Other variants