I found some strange file named as "zi1mQiuH" inside of public_html folder. the file size is 5GB Inside that file the code is like below format PK "¥R .well-known/UT ðk’`Üaux Ás Ás PK BDS .well-known/pki-validation/UT ,ÐZa Üaux Ás Ás PK Î9ESbªû¹ó • index.phpUT Ä]\a]>raux Ás Ás }ÁJÄ0†ï}Š¹EËnû +èÁŠ‚ÂâVöÒf¶ ¦IL¦»øö&¥(xù¾þ›[¯|ÕÖu5<g È)„£r0FÞ= ÒÎ6Ð+á¤
So please kindly help me is that any temp file or any malware attack?