Rule Category

INDICATOR-COMPROMISE -- Snort detected a system behavior that suggests the system has been affected by malware. That behavior is known as an Indicator of Compromise (IOC). The symptoms could be a wide range of behaviors, from a suspicious file name to an unusual use of a utility. Symptoms do not guarantee an infection; your network configuration may not be affected by malware, but showing indicators as a result of a normal function. In this case, attackers may be attempting to gain privileges and access other systems, spread influence, and make calls and commands with elevated access. The context of the traffic is important to determine intrusion; traffic from an administration utility performing commands on a user's computer is likely not a compromise, but a user laptop accessing a webserver may indicate intrusion.

Alert Message

INDICATOR-COMPROMISE Suspicious .pw dns query

Rule Explanation

This event is generated when a suspicious .pw DNS query is detected. Impact: Misc activity Details: Ease of Attack:

What To Look For

This rule alerts on the presence of a DNS query attempting to resolve a host in the ".pw" domain. This has been observed heavily in malware attempting to establish Command and Control. While obviously there are legit domains in ".pw", you should use your best judgement in investigating this alert.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

MITRE ATT&CK Framework

Tactic: Command and Control

Technique: Domain Generation Algorithms

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org

Rule Vulnerability

CVE Additional Information