That is 2328.rar にはDLKeyが設定されています
COMMENT[DLKey]
DATE21/05/14(Fri),03:49:23
SIZE73.9MB (77510724bytes)
ORGMIMEapplication/octet-stream
ORGNAMESerengbil.rar
DLKey:

That's ローダーに戻る