Scheduled Task hidden by registry modification

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 with eXtended Threat Hunting (XTH)
ATT&CK Tactic	Stealth (TA0005), Defense Impairment (TA0112)
ATT&CK Technique	Modify Registry (T1112), Hide Artifacts (T1564)
Severity	Low

Description

Attackers may try to hide a Scheduled Task by deleting the Scheduled Task's software descriptor (SD) value in the registry.

Attacker's Goals

Adversaries may hide their malicious Scheduled Task to evade detection.

Investigative actions

• Check the appropriate Scheduled Task to verify its legitimacy.
• You can also check the executing executable to verify its purpose.