Passive Radar
Passive Radar (无源雷达) is a KnownSec offensive network-reconnaissance tool described in leaked internal documents analyzed by DomainTools. It is designed to map internal networks without generating the noise associated with active scanning. The tool ingests packet capture (PCAP) data obtained from compromised hosts or network taps and reconstructs internal network topologies, user communication patterns, service inventories, IP addressing schemes, port usage, protocol signatures, and traffic flows. The reporting places Passive Radar within a broader alleged KnownSec espionage ecosystem supporting Chinese state entities, including China’s Ministry of Public Security, and alongside other offensive tools such as GhostX and Un-Mail. High-confidence reporting in the provided content does not include specific indicators of compromise such as hashes, domains, or IP addresses for Passive Radar.
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Recent activity
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A passive internal network mapping/reconnaissance tool that ingests PCAP data (from compromised hosts or taps) to reconstruct network topology and activity without active scanning. Described outputs include IP addressing schemes, port usage, protocol signatures, and traffic flows to support lateral movement planning.
Network intelligence tool that ingests packet captures to reconstruct internal topology, communications, and service inventory.
The version that knows your environment.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.