Official D3FEND definitionDefinition
Verifying that a file conforms to its expected format specifications
Bare Metal Cyber interpretationImplementation perspective
File Format Verification should be treated as a technical defensive capability rather than a product checkbox. In practice, teams should define the protected scope, the conditions under which the technique acts, and the observable evidence that demonstrates the intended behavior. For this technique, likely engineering context includes File, File Section.
Use the technique to create a logical or physical boundary that limits access, execution, communication, or movement.
Questions to ask
- What is being isolated, from whom or what, and under which conditions?
- Which flows or operations remain explicitly allowed across the boundary?
- What happens when the isolation mechanism fails or loses policy context?
- How is the boundary tested for alternate paths, bypasses, and unintended dependencies?
Evidence and validation
- Architecture and data-flow diagrams showing the isolation boundary
- Policy, rule, or configuration exports from enforcing components
- Tests of allowed, denied, and failure-state behavior
- Monitoring evidence for boundary violations and policy changes
Common failure patterns
- The intended boundary has undocumented alternate paths or inherited trust relationships.
- Rules accumulate without ownership, review, or removal of obsolete exceptions.
- Isolation is assumed from network location while application, identity, or management paths remain open.
This implementation perspective is original Bare Metal Cyber educational content. It does not replace the official D3FEND definition or establish that a specific product implements the technique.
Ontology hierarchyTechnique hierarchy
D3FEND graph relationshipsArtifacts and ontology entities
These relationships describe how D3FEND connects a defensive technique to artifacts or other ontology entities. They describe graph semantics, not a product certification.
Explicit technique relationships
Show inferred artifact relationship paths (2)
Content FilteringfiltersFile
File Format VerificationanalyzesFile Section
Offensive-technique relationships
These relationships are generated from D3FEND graph paths and are explicitly experimental. They should be treated as hypotheses for defensive analysis—not as proof that the technique prevents, detects, or removes an offensive behavior.
ATT&CK Enterprise (100)
T1003.007Proc FilesystemCredential AccessT1003.008/etc/passwd and /etc/shadowCredential AccessT1005Data from Local SystemCollectionT1014RootkitStealthT1016System Network Configuration DiscoveryDiscoveryT1018Remote System DiscoveryDiscoveryT1027.001Binary PaddingStealthT1027.002Software PackingStealthT1027.004Compile After DeliveryStealthT1033System Owner/User DiscoveryDiscoveryT1036.001Invalid Code SignatureStealthT1036.003Rename Legitimate UtilitiesStealthT1036.005Match Legitimate Resource Name or LocationStealthT1036.006Space after FilenameStealthT1037.001Logon Script (Windows)Persistence, Privilege EscalationT1037.002Login HookPersistence, Privilege EscalationT1037.003Network Logon ScriptPersistence, Privilege EscalationT1037.004RC ScriptsPersistence, Privilege EscalationT1041Exfiltration Over C2 ChannelExfiltrationT1048.002Exfiltration Over Asymmetric Encrypted Non-C2 ProtocolExfiltrationT1053.004LaunchdExecution, Persistence, Privilege Escalation
T1055.001Dynamic-link Library InjectionPrivilege Escalation, StealthT1055.002Portable Executable InjectionPrivilege Escalation, StealthT1055.003Thread Execution HijackingPrivilege Escalation, StealthT1055.009Proc MemoryPrivilege Escalation, StealthT1055.014VDSO HijackingPrivilege Escalation, StealthT1059Command and Scripting InterpreterExecutionT1070.002Clear Linux or Mac System LogsStealth
T1070.004File DeletionStealthT1071Application Layer ProtocolCommand and ControlT1071.001Web ProtocolsCommand and ControlT1072Software Deployment ToolsExecution, Lateral MovementT1074.001Local Data StagingCollectionT1083File and Directory DiscoveryDiscoveryT1114.001Local Email CollectionCollectionT1119Automated CollectionCollectionT1127.001MSBuildExecution, StealthT1137.001Office Template MacrosPersistenceT1137.003Outlook FormsPersistenceT1140Deobfuscate/Decode Files or InformationStealthT1187Forced AuthenticationCredential AccessT1204.002Malicious FileExecutionT1218.005MshtaStealthT1218.011Rundll32StealthT1220XSL Script ProcessingStealthT1486Data Encrypted for ImpactImpactT1505.003Web ShellPersistenceT1534Internal SpearphishingLateral MovementT1543.001Launch AgentPersistence, Privilege EscalationT1543.002Systemd ServicePersistence, Privilege EscalationT1543.004Launch DaemonPersistence, Privilege EscalationT1546.002ScreensaverPersistence, Privilege EscalationT1546.004Unix Shell Configuration ModificationPersistence, Privilege EscalationT1546.005TrapPersistence, Privilege EscalationT1546.006LC_LOAD_DYLIB AdditionPersistence, Privilege EscalationT1546.008Accessibility FeaturesPersistence, Privilege EscalationT1546.009AppCert DLLsPersistence, Privilege EscalationT1546.010AppInit DLLsPersistence, Privilege EscalationT1546.013PowerShell ProfilePersistence, Privilege EscalationT1546.014EmondPersistence, Privilege Escalation Showing the first 60 of 100 source-derived relationships. Open the official D3FEND technique for the current graph view.
ATT&CK for ICS (8)
T0851RootkitEvasion, Inhibit Response Function
T0853ScriptingExecution
T0865Spearphishing AttachmentInitial Access
T0871Execution through APIExecution
T0888Remote System Information DiscoveryDiscovery
T0893Data from Local SystemCollection
T0894System Binary Proxy ExecutionEvasion
T0895Autorun ImageExecution
Authoritative sources
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