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Blister is a malware loader known for stealthy deployment of additional payloads through strong defense-evasion tradecraft. It has been observed using process hollowing to execute malicious code inside legitimate Windows processes, including commonly trusted system binaries and browser-related executables, allowing it to blend into normal activity and complicate detection. Reported behavior links Blister to process injection techniques used for in-memory execution and covert payload delivery. High-confidence reporting supports defense evasion and process injection, specifically process hollowing, as core characteristics of this malware. Reliable attribution to a specific threat actor, country of origin, victim geography, or industry targeting is not currently available from the supplied facts.
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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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