ATT&CK Technique · Stealth
T1027.011 Fileless StorageMapped by 2 reports, 3 detection rules and 4 tracked actors on The Hunters Ledger. Technique page on attack.mitre.org.
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Reports
Each report maps this technique in its own ATT&CK table, at the confidence the report states. The link opens that table.
Detection rules
Rules whose ATT&CK coverage line names this technique, by detection page. The link opens the page's coverage table.
Detection rules
Chaos Ransomware (TorBrowserTor) Multi-Stage Loader (94.103.1.13)Stage-4 Mutex GUID (Cross-Build Invariant) (YARA, Detection); Stage-4 Fileless Payload Written to Masquerade Registry Key (SIGMA, Hunting)
Detection rules
ZeroTrace Multi-Family MaaS Operation (74.0.42.25)Fileless PowerShell PE Dropper ExecutionPolicy Bypass from Non-Standard Parent (SIGMA, Hunting)
Tracked actors
Designations whose reports map this technique.
- UTA-2026-005: Chaos ransomware builder user with a private five-stage crypter
- UTA-2026-008: Developer and operator of the BellaMain Turkish phishing-as-a-service panel
- UTA-2026-009: Multi-product fraud operator pairing a real VPN service with a brand-impersonation phishing library
- UTA-2026-010: Rhadamanthys MaaS customer with a self-built loader (customer side only, never the vendor)
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