cyberstrikeus T1663 Remote Access Software
High-Level Description
Adversaries may use legitimate remote access software, such as VNC, TeamViewer, AirDroid, AirMirror, etc., to establish an interactive command and control channel to target mobile devices.
Remote access applications may be installed and used post-compromise as an alternate communication channel for redundant access or as a way to establish an interactive remote session with the target device. They may also be used as a component of malware to establish a reverse connection to an adversary-controlled system or service. Installation of remote access tools may also include persistence.
Kill Chain Phase
- Command and Control (TA0037)
Platforms: Android, iOS
What to Check
- Identify if Remote Access Software technique is applicable to target mobile environment
- Check Android devices for indicators of Remote Access Software
- Check iOS devices for indicators of Remote Access Software
- Verify mitigations are bypassed or absent (2 known mitigations)
- Assess detection coverage (1 detection strategies)
How to Test
Identify Attack Surface
Determine if the target mobile environment is susceptible to Remote Access Software by examining the target platforms (Android, iOS).
Assess Existing Defenses
Review whether mitigations for T1663 are in place. If defenses are absent or misconfigured, this technique may be exploitable.
Remediation Guide
M1012 Enterprise Policy
When devices are enrolled in an EMM/MDM using device owner (iOS) or fully managed (Android) mode, the EMM/MDM can collect a list of installed applications on the device. An administrator can then act on, for example blocking, specific remote access applications from being installed on managed devices.
M1011 User Guidance
Users should be encouraged to be very careful with granting dangerous permissions, such as device administrator or access to device accessibility.
Detection
Detection of Remote Access Software
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| Remote Access Software technique applicable | Low | Command And Control |
CWE Categories
| CWE ID | Title |
|---|---|
| CWE-300 | Channel Accessible by Non-Endpoint |