Suspicious DynamicWrapperX dynwrapx.dll Load Enabling Script Based Injection

ATT&CK techniques

Priv Esc → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1055Process Injection
Defense Evasion
- T1055Process Injection
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects loading of dynwrapx.dll, the DynamicWrapperX COM helper abused in the OnlyDcRatFans chain to let a VBScript call Windows APIs and inject RemcosRAT into winhlp32.exe. This library is rarely used by legitimate software, so its presence in a script host process points to API abuse for code injection.

Reporting behind it

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Suspicious DynamicWrapperX dynwrapx.dll Load Enabling Script Based Injection

Pivot detection · T1055 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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