Blastoize
Blastoize is a threat actor name associated in the provided content with posting a free partial download of corporate documents from Knownsec on the open web on 2026-03-18 00:56:35 UTC. The material is described as a redistribution of the original Knownsec leak first exposed in November 2025, rather than a new breach. Based on the content, Blastoize is linked to publication and redistribution of leaked data, not to the original compromise. The redistributed material reportedly related to a major Chinese cybersecurity firm, Knownsec, described as having ties to the Chinese government and military. The underlying leaked documents reportedly included source code and documentation for offensive cyber tools, including RATs for Linux, Windows, macOS, iOS, and Android; Android malware for extracting message histories from Chinese chat applications and Telegram; specifications for a malicious power bank used for covert data exfiltration; spreadsheets listing more than 80 overseas targets across over 20 countries; records of alleged exfiltration of foreign datasets; and documentation of collaboration between Knownsec and Chinese government entities including the Chinese Police No.3 Research Department. The content also states that the leaked material referenced use of ZoomEye to enumerate target infrastructure and a Critical Infrastructure Target Database prioritizing Taiwan, the United States, Japan, India, and Korea. No additional aliases, sub-groups, or attribution details for Blastoize are provided in the content.
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Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Targeting
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Who they target
Sectors the actor has been observed targeting.
- Software & Services
- Commercial & Professional Services
Tradecraft
8 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
Recent activity
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.