Suspicious BugSplat Binary Sideloading bugsplatrc.dll via DLL Search Order Hijack

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 a renamed BugSplat executable loading a malicious bugsplatrc.dll from the same directory. This DLL sideloading pattern was used by China-linked actors in the ToolShell SharePoint intrusion to load ShadowPad.

Reporting behind it

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Suspicious BugSplat Binary Sideloading bugsplatrc.dll via DLL Search Order Hijack

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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