Operation Turb00: Trojanized Qt5Core.dll/opera_elf.dll Side-Loaded from Non-System Path

Ibrahim Saud@tektrix

•updated Jul 3, 2026•0•0•1

This rule detects instances of specific DLLs (Qt5Core.dll or opera_elf.dll) being loaded by known suspicious executables (WizardDa42.exe or AlphVector.exe) from non-standard, potentially user-writable directories like ProgramData or Temp. The rule further filters to include instances where the module's signature is invalid, unsigned, or untrusted, which is characteristic of malicious process masquerading or side-loading.