Remote DCOM command execution

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	Impacket Analytics
ATT&CK Tactic	Lateral Movement (TA0008)
ATT&CK Technique	Remote Services: Distributed Component Object Model (T1021.003)
Severity	Low

Description

A remotely triggered DCOM initiated a command execution by a host that rarely executes processes using DCOM to other remote hosts.

Attacker's Goals

Perform lateral movement to new hosts to expand the foothold within a network.

Investigative actions

• Investigate the processes being spawned on the host for malicious activities.
• Correlate the DCOM call from the source host and understand which software initiated it.

Variations

Remote suspicious DCOM-MMC20.Application command execution

Synopsis

Field	Value
ATT&CK Tactic	Lateral Movement (TA0008)
ATT&CK Technique	Remote Services: Distributed Component Object Model (T1021.003)
Severity	High

Description

A remotely triggered suspicious DCOM-MMC20.Application initiated a command execution by a host that rarely executes processes using DCOM to other remote hosts.

Attacker's Goals

Perform lateral movement to new hosts to expand the foothold within a network.

Investigative actions

• Investigate the processes being spawned on the host for malicious activities.
• Correlate the DCOM call from the source host and understand which software initiated it.

Remote suspicious DCOM-Excel.Application command execution

Synopsis

Field	Value
ATT&CK Tactic	Lateral Movement (TA0008)
ATT&CK Technique	Remote Services: Distributed Component Object Model (T1021.003)
Severity	High

Description

A remotely triggered suspicious DCOM-Excel.Application initiated a command execution by a host that rarely executes processes using DCOM to other remote hosts.

Attacker's Goals

Perform lateral movement to new hosts to expand the foothold within a network.

Investigative actions

• Investigate the processes being spawned on the host for malicious activities.
• Correlate the DCOM call from the source host and understand which software initiated it.

Remote suspicious DCOM-Outlook.Application command execution

Synopsis

Field	Value
ATT&CK Tactic	Lateral Movement (TA0008)
ATT&CK Technique	Remote Services: Distributed Component Object Model (T1021.003)
Severity	High

Description

A remotely triggered suspicious DCOM-Outlook.Application initiated a command execution by a host that rarely executes processes using DCOM to other remote hosts.

Attacker's Goals

Perform lateral movement to new hosts to expand the foothold within a network.

Investigative actions

• Investigate the processes being spawned on the host for malicious activities.
• Correlate the DCOM call from the source host and understand which software initiated it.

Remote suspicious DCOM command execution

Synopsis

Field	Value
ATT&CK Tactic	Lateral Movement (TA0008)
ATT&CK Technique	Remote Services: Distributed Component Object Model (T1021.003)
Severity	Medium

Description

A remotely triggered suspicious DCOM initiated a command execution by a host that rarely executes processes using DCOM to other remote hosts.

Attacker's Goals

Perform lateral movement to new hosts to expand the foothold within a network.

Investigative actions

• Investigate the processes being spawned on the host for malicious activities.
• Correlate the DCOM call from the source host and understand which software initiated it.