The user extracts the RAR and clicks a shortcut ( .lnk ) disguised as a document.
If you are investigating this specific file, look for the following patterns: VAMMAI_-_Dongrui.rar
: The archive typically contains a LNK file , a legitimate executable (used for DLL side-loading), and a malicious DLL (the payload). The user extracts the RAR and clicks a shortcut (
: Use AppLocker or similar tools to prevent unsigned DLLs from loading from user-writable directories like Downloads or Temp . VAMMAI_-_Dongrui.rar
: The legitimate tool loads a malicious DLL (often named poc.dll or libcef.dll ) located in the same directory. Payload Behavior :
The shortcut executes a legitimate system tool (e.g., OdfCheck.exe or mscoree.dll ) bundled in the folder.