Globally uncommon process execution 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	Global Anomaly Analytics
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Informational

Description

A signed process has executed a process that, on a global level, it usually doesn't execute.

Attacker's Goals

Unusual processes may be executed for various purposes, including exfiltration, lateral movement, etc.

Investigative actions

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

Variations

Globally uncommon process execution from a signed process from a known vendor

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Medium

Description

A signed process has executed a process that, on a global level, it usually doesn't execute.

Attacker's Goals

Unusual processes may be executed for various purposes, including exfiltration, lateral movement, etc.

Investigative actions

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

Globally rare process execution from a signed process

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Medium

Description

A signed process has executed a process that, on a global level, it usually doesn't execute.

Attacker's Goals

Unusual processes may be executed for various purposes, including exfiltration, lateral movement, etc.

Investigative actions

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

Globally uncommon process execution from an injected thread in a signed process

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002), Stealth (TA0005)
ATT&CK Technique	User Execution (T1204), Process Injection (T1055)
Severity	Low

Description

An injected thread in a signed process has executed a process that, on a global level, it usually doesn't execute.

Attacker's Goals

Unusual processes may be executed for various purposes, including exfiltration, lateral movement, etc.

Investigative actions

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

Globally uncommon process execution from a web server process or CGO

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002), Initial Access (TA0001), Persistence (TA0003)
ATT&CK Technique	User Execution (T1204), External Remote Services (T1133), Server Software Component: Web Shell (T1505.003)
Severity	Low

Description

A web server process or CGO has executed a process that, on a global level, it usually doesn't execute.

Attacker's Goals

Unusual processes may be executed for various purposes, including exfiltration, lateral movement, etc.

Investigative actions

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