That is 3916.rar にはDLKeyが設定されています
COMMENT[DLKey]
DATE21/09/24(Fri),15:52:56
SIZE12.2MB (12785277bytes)
ORGMIMEapplication/octet-stream
ORGNAMEVID_'unknown number 1'.rar
DLKey:

That's ローダーに戻る