Globally uncommon injection from a signed process

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, Global Anomaly Analytics
ATT&CK Tactic	Stealth (TA0005), Persistence (TA0003)
ATT&CK Technique	System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554)
Severity	Informational

Description

A signed process injected into another process that it does not normally target at a global level.

Attacker's Goals

Attackers may use various methods to execute code in the context of a signed process to avoid detection.

Investigative actions

• Check if the actor process loaded a suspicious DLL before the alert.
• Check if the actor process was injected before the alert.
• Check if the process execution and connections are legitimate.

Variations

Globally uncommon suspicious injection from a signed process

Synopsis

Field	Value
ATT&CK Tactic	Stealth (TA0005), Persistence (TA0003)
ATT&CK Technique	System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554)
Severity	Medium

Description

A non-injected thread in a signed process with a suspicious injection type injected into another process that it does not normally target at a global level.

Attacker's Goals

Attackers may use various methods to execute code in the context of a signed process to avoid detection.

Investigative actions

• Check if the actor process loaded a suspicious DLL before the alert.
• Check if the actor process was injected before the alert.
• Check if the process execution and connections are legitimate.

Globally uncommon injection from a signed process which was executed by a scheduled task

Synopsis

Field	Value
ATT&CK Tactic	Stealth (TA0005), Persistence (TA0003)
ATT&CK Technique	System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554)
Severity	Low

Description

A signed process injected into another process that it does not normally target at a global level.

Attacker's Goals

Attackers may use various methods to execute code in the context of a signed process to avoid detection.

Investigative actions

• Check if the actor process loaded a suspicious DLL before the alert.
• Check if the actor process was injected before the alert.
• Check if the process execution and connections are legitimate.

Globally uncommon injection from a signed process

Synopsis

Field	Value
ATT&CK Tactic	Stealth (TA0005), Persistence (TA0003)
ATT&CK Technique	System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554)
Severity	Low

Description

A signed process injected into another process that it does not normally target at a global level.

Attacker's Goals

Attackers may use various methods to execute code in the context of a signed process to avoid detection.

Investigative actions

• Check if the actor process loaded a suspicious DLL before the alert.
• Check if the actor process was injected before the alert.
• Check if the process execution and connections are legitimate.