It looks like the string you provided — "symantec endpoint protection 1431215410000rar upd" — appears to be a corrupted, mistyped, or non-standard file reference. It may be a mix of:
Symantec (now part of Broadcom) does not distribute SEP updates via .rar files. Downloading such files from unofficial sources poses security risks (malware, tampered binaries). symantec endpoint protection 1431215410000rar upd