Possible use of a networking driver for network sniffing

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 with eXtended Threat Hunting (XTH)
ATT&CK Tactic	Credential Access (TA0006), Discovery (TA0007)
ATT&CK Technique	Network Sniffing (T1040)
Severity	Informational

Description

A process wrote a known networking driver with network sniffing capabilities to disk, attackers can use it to sniff passwords and other credentials from the network.

Attacker's Goals

Enable access to raw network traffic via promiscuous mode, allowing an attacker to sniff credentials and other sensitive data from the organization's network, and in some cases interfere with network communications.

Investigative actions

• Verify whether the process is expected and recognized by IT or the user.
• Check whether the driver was installed recently. If it was installed using sc.exe, this may indicate malicious activity. Review who executed sc.exe to validate legitimacy.

Variations

Possible use of a networking driver for network sniffing

Synopsis

Field	Value
ATT&CK Tactic	Credential Access (TA0006), Discovery (TA0007)
ATT&CK Technique	Network Sniffing (T1040)
Severity	Medium

Description

A process wrote a known and rare networking driver with network sniffing capabilities to not standard location for drivers on the disk, attackers can use it to sniff passwords and other credentials from the network.

Attacker's Goals

Enable access to raw network traffic via promiscuous mode, allowing an attacker to sniff credentials and other sensitive data from the organization's network, and in some cases interfere with network communications.

Investigative actions

• Verify whether the process is expected and recognized by IT or the user.
• Check whether the driver was installed recently. If it was installed using sc.exe, this may indicate malicious activity. Review who executed sc.exe to validate legitimacy.

Possible use of a networking driver for network sniffing

Synopsis

Field	Value
ATT&CK Tactic	Credential Access (TA0006), Discovery (TA0007)
ATT&CK Technique	Network Sniffing (T1040)
Severity	Low

Description

A process wrote a known networking driver with network sniffing capabilities to not standard location for drivers on the disk, attackers can use it to sniff passwords and other credentials from the network.

Attacker's Goals

Enable access to raw network traffic via promiscuous mode, allowing an attacker to sniff credentials and other sensitive data from the organization's network, and in some cases interfere with network communications.

Investigative actions

• Verify whether the process is expected and recognized by IT or the user.
• Check whether the driver was installed recently. If it was installed using sc.exe, this may indicate malicious activity. Review who executed sc.exe to validate legitimacy.