Injection into rundll32.exe

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
Detector Tags	Injection Analytics
ATT&CK Tactic	Stealth (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	Informational

Description

A process injected into an instance of rundll32.exe.

Attacker's Goals

• Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

• Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.

Variations

Injection into rundll32.exe which was executed by a scheduled task

Synopsis

Field	Value
ATT&CK Tactic	Stealth (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	Low

Description

A process injected into an instance of rundll32.exe.

Attacker's Goals

• Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

• Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.