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MITRE ATT&CK® Technique

T1163: Rc.common

During the boot process, macOS executes source /etc/rc.common, which is a shell script containing various utility functions. This file also defines routines for processing command-line arguments and for gathering system settings, and is thus recommended to include in the start of Startup Item Scripts [1]. In macOS and OS X, this is now a deprecated technique in favor of launch agents and launch daemons, but is currently still used.

Adversaries can use the rc.common file as a way to hide code for persistence that will execute on each reboot as the root user [2].

EnterpriseT1163TechniqueObject v1.1 Modified
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Glexia's Take

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Official MITRE ATT&CK definition

Rc.common

During the boot process, macOS executes source /etc/rc.common, which is a shell script containing various utility functions. This file also defines routines for processing command-line arguments and for gathering system settings, and is thus recommended to include in the start of Startup Item Scripts [1]. In macOS and OS X, this is now a deprecated technique in favor of launch agents and launch daemons, but is currently still used.

Adversaries can use the rc.common file as a way to hide code for persistence that will execute on each reboot as the root user [2].

View the same entry on attack.mitre.org (MITRE-hosted reference; in-page links above use the Glexia ATT&CK library.)

Glexia analysis

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ATT&CK relationship table

Related techniques

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1 rows
Domain ID Name Relationship / procedure
Enterprise T1037.004 RC Scripts Sub-technique This object revoked by RC Scripts.
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Change history

Object version and sync metadata

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ATT&CK release
19.1
Object version
1.1
Created
Modified
Raw hash
bce167564a6f71cf...
Imported snapshots across ATT&CK releases (1)
Release Bundle imported Object version Modified Status Raw hash
19.1 1.1 Current bundle Revoked bce167564a6f…
Raw source

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Source references

External references and citations

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  1. [1]
    Startup Items

    Apple. (2016, September 13). Startup Items. Retrieved July 11, 2017.

    Open source URL
  2. [2]
    Methods of Mac Malware Persistence

    Patrick Wardle. (2014, September). Methods of Malware Persistence on Mac OS X. Retrieved July 5, 2017.

    Open source URL
  3. [3]
    mitre-attack T1163
    Open source URL
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