Threat Description

Backdoor: ​OSX/Sabpab.A


Category: Malware
Type: Backdoor
Platform: OSX
Aliases: Backdoor:​OSX/Sabpab.A, MAC.OSX.Trojan.Lamadai.B


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


Manual Removal Instructions
  • 1. Open Activity Monitor, select, and click Quit Process.
  • 2. Open Terminal, then execute the following:
    • rm ~/Library/Preferences/
    • rm ~/Library/LaunchAgents/

Technical Details


Sabpab.A is dropped into the system by malicious Java applets that exploit the vulnerability identified by CVE-2012-0507, and malicious Word documents that exploit CVE-2009-0563.


The malware drops the following copy of itself:

  • ~/Library/Preferences/

It creates the following launchpoint for the file above:

  • ~/Library/LaunchAgents/

The malware connects to a remote server to obtain additional commands. The server varies between samples. As of this writing, there are two known servers:

  • rtx556[...][...]
  • 199[...].192.152.100[...]

The backdoor is capable of performing the following actions:

  • Downloading and uploading files
  • Creating new processes
  • Taking screenshots


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