T1040 Network Sniffing Mappings

Adversaries may sniff network traffic to capture information about an environment, including authentication material passed over the network. Network sniffing refers to using the network interface on a system to monitor or capture information sent over a wired or wireless connection. An adversary may place a network interface into promiscuous mode to passively access data in transit over the network, or use span ports to capture a larger amount of data.

Data captured via this technique may include user credentials, especially those sent over an insecure, unencrypted protocol. Techniques for name service resolution poisoning, such as LLMNR/NBT-NS Poisoning and SMB Relay, can also be used to capture credentials to websites, proxies, and internal systems by redirecting traffic to an adversary.

Network sniffing may also reveal configuration details, such as running services, version numbers, and other network characteristics (e.g. IP addresses, hostnames, VLAN IDs) necessary for subsequent Lateral Movement and/or Defense Evasion activities.



Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name
AC-16 Security and Privacy Attributes Protects T1040 Network Sniffing
AC-17 Remote Access Protects T1040 Network Sniffing
AC-18 Wireless Access Protects T1040 Network Sniffing
AC-19 Access Control for Mobile Devices Protects T1040 Network Sniffing
IA-2 Identification and Authentication (organizational Users) Protects T1040 Network Sniffing
IA-5 Authenticator Management Protects T1040 Network Sniffing
SC-4 Information in Shared System Resources Protects T1040 Network Sniffing
SC-8 Transmission Confidentiality and Integrity Protects T1040 Network Sniffing
SI-12 Information Management and Retention Protects T1040 Network Sniffing
SI-4 System Monitoring Protects T1040 Network Sniffing
SI-7 Software, Firmware, and Information Integrity Protects T1040 Network Sniffing
azure_security_center_recommendations Azure Security Center Recommendations technique_scores T1040 Network Sniffing
azure_sentinel Azure Sentinel technique_scores T1040 Network Sniffing
azure_private_link Azure Private Link technique_scores T1040 Network Sniffing
azure_policy Azure Policy technique_scores T1040 Network Sniffing
azure_vpn_gateway Azure VPN Gateway technique_scores T1040 Network Sniffing
azure_ad_identity_secure_score Azure AD Identity Secure Score technique_scores T1040 Network Sniffing
azure_key_vault Azure Key Vault technique_scores T1040 Network Sniffing
docker_host_hardening Docker Host Hardening technique_scores T1040 Network Sniffing