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PROMPTSTEAL is a malware family associated with the emerging use of large language model tooling and agentic workflows by threat actors. It has been described as a form of "just-in-time" malware that generates malicious code on demand during execution rather than relying solely on fully prebuilt payloads. Reporting links it with multi-agent processes that create and obfuscate code at runtime, indicating an emphasis on defense evasion and post-compromise adaptability. PROMPTSTEAL has been discussed alongside PROMPTFLUX as part of a broader trend in which adversaries use AI-assisted techniques to dynamically produce or transform malware components. Publicly available information in this context is limited, and high-confidence attribution to a specific operator, country of origin, or victimology is not currently available.
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1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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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.
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Domains, IPs, and hashes tied to this actor, refreshed continuously.