name: ColdRoot MacOS RAT
id: bd91a2bc-d20b-4f44-a982-1bea98e86390
version: 1
date: '2019-01-09'
author: Jose Hernandez, Splunk
type: batch
description: Leverage searches that allow you to detect and investigate unusual activities
  that relate to the ColdRoot Remote Access Trojan that affects MacOS. An example
  of some of these activities are changing sensative binaries in the MacOS sub-system,
  detecting process names and executables associated with the RAT, detecting when
  a keyboard tab is installed on a MacOS machine and more.
narrative: 'Conventional wisdom holds that Apple''s MacOS operating system is significantly
  less vulnerable to attack than Windows machines. While that point is debatable,
  it is true that attacks against MacOS systems are much less common. However, this
  fact does not mean that Macs are impervious to breaches. To the contrary, research
  has shown that that Mac malware is increasing at an alarming rate. According to
  AV-test, in 2018, there were 86,865 new MacOS malware variants, up from 27,338 the
  year before&#151;a 31% increase. In contrast, the independent research firm found
  that new Windows malware had increased from 65.17M to 76.86M during that same period,
  less than half the rate of growth. The bottom line is that while the numbers look
  a lot smaller than Windows, it''s definitely time to take Mac security more seriously.\

  This Analytic Story addresses the ColdRoot remote access trojan (RAT), which was
  uploaded to Github in 2016, but was still escaping detection by the first quarter
  of 2018, when a new, more feature-rich variant was discovered masquerading as an
  Apple audio driver. Among other capabilities, the Pascal-based ColdRoot can heist
  passwords from users'' keychains and remotely control infected machines without
  detection. In the initial report of his findings, Patrick Wardle, Chief Research
  Officer for Digita Security, explained that the new ColdRoot RAT could start and
  kill processes on the breached system, spawn new remote-desktop sessions, take screen
  captures and assemble them into a live stream of the victim''s desktop, and more.\

  Searches in this Analytic Story leverage the capabilities of OSquery to address
  ColdRoot detection from several different angles, such as looking for the existence
  of associated files and processes, and monitoring for signs of an installed keylogger.'
references:
- https://www.intego.com/mac-security-blog/osxcoldroot-and-the-rat-invasion/
- https://objective-see.com/blog/blog_0x2A.html
- https://www.bleepingcomputer.com/news/security/coldroot-rat-still-undetectable-despite-being-uploaded-on-github-two-years-ago/
tags:
  analytic_story: ColdRoot MacOS RAT
  category:
  - Malware
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  usecase: Advanced Threat Detection
