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

Related detections9 linkedT1055 — drag to rearrange

Suspicious CLR Load Into Mstsc RDP Client

Suspicious CLR Runtime Load into Non-DotNet Process via Injection

Malicious Cryptominer Execution via AddInProcess with XMRig Arguments (via process_creation)

Suspicious word_update.exe Spawning Command Shell in Remcos Chain (via process_creation)

Suspicious Rundll32 Spawning Injection Target Process via Qakbot (via process_creation)

Malicious AddInProcess32 Network Beacon on PureRAT C2 Ports

Suspicious Payload Staging in ProgramData IntelDriver Folder (via file_event)

Possible DarkGate Process Injection via iTunesHelper Spawning vbc.exe

Suspicious PowerShell Shellcode Loader via Function Pointer Delegate

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.

Full detection rule

Unlock this rule to view and copy it

The detection logic is included with a plan. Everything else — context, mappings and implementation details — stays free on this page.

Sign in for 3 free unlocks

Signing in gives you 3 unlocks to spend on any rule in the library. No card, and they do not expire.

Also included

Unlocked rules convert on this page — to Splunk SPL or Splunk — Raw Index SPL or Microsoft Sentinel KQL or Microsoft Sentinel ASIM ASIM KQL or Microsoft Defender XDR KQL or Elastic Security KQL or Elastic Security Lucene or Elastic Security ES|QL or CrowdStrike Falcon CQL or SentinelOne PowerQuery or Palo Alto Cortex XDR XQL or Carbon Black Cloud Platform Search or Carbon Black EDR Process Search or Google Security Operations UDM Search or IBM QRadar AQL or Sumo Logic Cloud SIEM Rules expression or Rapid7 InsightIDR LEQL or Graylog Search or OpenSearch Lucene or OpenSearch PPL PPL or Grafana Loki LogQL or SQLite SQL or Zircolite SQLite — with the log-source profile the engine picked, the field map it used, and everything it could not express. Converting a rule you have unlocked costs no further credit.

See it run on a free rule →Convert your own rule →