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InformationalSplunk security contentTeoderick Contreras +1

Linux Possible Append Command To Profile Config File

The following analytic detects suspicious command-lines that modify user profile files to automatically execute scripts or executables upon system reboot. It leverages data from Endpoint Detection and Response (EDR)…

Description

The following analytic detects suspicious command-lines that modify user profile files to automatically execute scripts or executables upon system reboot. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions involving profile files like ~/.bashrc and /etc/profile. This activity is significant as it indicates potential persistence mechanisms used by adversaries to maintain access to compromised hosts. If confirmed malicious, this could allow attackers to execute arbitrary code upon reboot, leading to persistent control over the system and potential further exploitation.

Detection logic

Detection requirements

Platform
LinuxmacOS

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
sysmon_for_linux_eventid_1

Known benign triggers

  • Administrator or network operator can use this commandline for automation purposes. Please update the filter macros to remove false positives.

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