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Anonymizing circuit setup indicating infection or evasion attempt

ID:anon_circuit
Data type:IP
Severity:
High
MITRE ATT&CK:TA0010:T1048

Description

AlphaSOC has detected network traffic indicating use of an anonymizing circuit, such as Tor. These circuits route traffic through multiple encrypted relays to mask the user's identity and location. While privacy-conscious users leverage such networks legitimately, threat actors frequently exploit them to conceal malicious activities.

Impact

Anonymizing networks can be used by threat actors to hide malicious traffic, evade detection, and maintain stealth during cyberattacks. Malware often uses these networks for command and control (C2) communication, data exfiltration, or ransomware operations. Early detection of anonymizing network connections helps identify potential compromises before significant damage occurs.

Severity

SeverityCondition
Informational
Anonymizing circuit setup

Investigation and Remediation

Investigate the source of the anonymizing circuit traffic. Determine if the use is authorized. If not, isolate the affected system, conduct a thorough forensic analysis, and scan for malware or indicators of compromise. Review logs and network traffic for any suspicious activities that may have occurred during or prior to the anonymizing circuit usage.