Suspicious i4jinst DLL Sideload via Spoofed GlobalProtect by WikiLoader

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1574.001DLL
Persistence
- T1574.001DLL
Priv Esc
- T1574.001DLL
Defense Evasion
- T1574.001DLL
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the i4jinst.dll being loaded from an install4j directory by a spoofed GlobalProtect binary, the DLL search order hijack a unique WikiLoader variant uses to gain execution from a fake VPN installer. Sideloading a bundled DLL lets the loader run under the guise of legitimate software. Detecting this exposes the WikiLoader delivery stage.

Reporting behind it

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Suspicious i4jinst DLL Sideload via Spoofed GlobalProtect by WikiLoader

Pivot detection · T1574.001 · 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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