A commonly abused process connected to a rare external host

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	EDR Windows C2 Analytics
ATT&CK Tactic	Command and Control (TA0011)
ATT&CK Technique	Application Layer Protocol: Web Protocols (T1071.001)
Severity	Low

Description

A commonly abused process connected to a rare external host.

Attacker's Goals

Communicate with the attacker's Command and Control (C2) infrastructure.

Investigative actions

• Investigate the actor process connected to the external host.
• Get further details about the uncommon external destination.
• Assess whether this communication pattern is expected or not.

Variations

A commonly abused renamed process connected to a rare external host

Synopsis

Field	Value
ATT&CK Tactic	Command and Control (TA0011)
ATT&CK Technique	Application Layer Protocol: Web Protocols (T1071.001)
Severity	Medium

Description

A commonly abused renamed process connected to a rare external host.

Attacker's Goals

Communicate with the attacker's Command and Control (C2) infrastructure.

Investigative actions

• Investigate the actor process connected to the external host.
• Get further details about the uncommon external destination.
• Assess whether this communication pattern is expected or not.

A commonly abused process connected to a globally rare external host

Synopsis

Field	Value
ATT&CK Tactic	Command and Control (TA0011)
ATT&CK Technique	Application Layer Protocol: Web Protocols (T1071.001)
Severity	Low

Description

A commonly abused process connected to a globally rare external host.

Attacker's Goals

Communicate with the attacker's Command and Control (C2) infrastructure.

Investigative actions

• Investigate the actor process connected to the external host.
• Get further details about the uncommon external destination.
• Assess whether this communication pattern is expected or not.

A commonly abused rare process connected to a rare external host

Synopsis

Field	Value
ATT&CK Tactic	Command and Control (TA0011)
ATT&CK Technique	Application Layer Protocol: Web Protocols (T1071.001)
Severity	Low

Description

A commonly abused rare process connected to a rare external host.

Attacker's Goals

Communicate with the attacker's Command and Control (C2) infrastructure.

Investigative actions

• Investigate the actor process connected to the external host.
• Get further details about the uncommon external destination.
• Assess whether this communication pattern is expected or not.