Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems. Adversaries may use Wi-Fi information as part of Account Discovery, Remote System Discovery, and other discovery or Credential Access activity to support both ongoing and future campaigns.
Adversaries may collect various types of information about Wi-Fi networks from hosts. For example, on Windows names and passwords of all Wi-Fi networks a device has previously connected to may be available through netsh wlan show profiles to enumerate Wi-Fi names and then netsh wlan show profile “Wi-Fi name” key=clear to show a Wi-Fi network’s corresponding password.(Citation: BleepingComputer Agent Tesla steal wifi passwords)(Citation: Malware Bytes New AgentTesla variant steals WiFi credentials)(Citation: Check Point APT35 CharmPower January 2022) Additionally, names and other details of locally reachable Wi-Fi networks can be discovered using calls to wlanAPI.dll Native API functions.(Citation: Binary Defense Emotes Wi-Fi Spreader)
On Linux, names and passwords of all Wi-Fi-networks a device has previously connected to may be available in files under /etc/NetworkManager/system-connections/.(Citation: Wi-Fi Password of All Connected Networks in Windows/Linux) On macOS, the password of a known Wi-Fi may be identified with security find-generic-password -wa wifiname (requires admin username/password).(Citation: Find Wi-Fi Password on Mac)
| Capability ID | Capability Description | Mapping Type | ATT&CK ID | ATT&CK Name | Notes |
|---|---|---|---|---|---|
| action.malware.variety.Capture stored data | Capture data stored on system disk | related-to | T1016.002 | Wi-Fi Discovery | |
| action.malware.variety.Scan network | Enumerating the state of the network | related-to | T1016.002 | Wi-Fi Discovery |
| Capability ID | Capability Description | Mapping Type | ATT&CK ID | ATT&CK Name | Notes |
|---|---|---|---|---|---|
| google_secops | Google Security Operations | technique_scores | T1016.002 | Wi-Fi Discovery |
Comments
Google Security Ops is able to trigger an alert based off processes and command-line arguments that may indicate adversary reconnaissance and information discovery techniques for network configuration settings (e.g., "net config", "ipconfig.exe", "nbtstat.exe).
This technique was scored as minimal based on low or uncertain detection coverage factor.
https://github.com/chronicle/detection-rules/blob/783e0e5947774785db1c55041b70176deeca6f46/soc_prime_rules/threat_hunting/windows/possible_system_network_configuration_discovery__sysmon_windows_logs.yaral
References
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