Autorun.inf created in root C drive

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent
ATT&CK Tactic	Lateral Movement (TA0008), Execution (TA0002)
ATT&CK Technique	Hijack Execution Flow: Services File Permissions Weakness (T1574.010), Replication Through Removable Media (T1091)
Severity	Medium

Description

An autorun file installed at the root of a C:\ drive is suspicious, as autorun files are typically associated with removable drives.

Attacker's Goals

The Autorun and AutoPlay components of Microsoft Windows operating systems may use 'Autorun.inf' to automatically execute a program (without user interaction). Adversaries can manipulate this mechanism to run a malicious program.

Investigative actions

Read the content of the 'Autorun.inf' file from the root directory folder of the drive (the file may be hidden).