My PostgreSQL server was affect by a Ransomware virus. I'm trying to restore the database from a dump file made by pg_dump in custom format (-F c option), but the dump file seems to be damaged in the first's 1000 lines.
Opening the file with vi shows ^@^@^@^@^@^@^@^@^@^@^ followed by part of the databse schema and the a lote of lines with binary characters that i think is the table's data.
I tried to replace those first lines with lines from other dev database and i can run pg_restore but at some point throws error.
pg_restore db.backup > out.sql
pg_restore: [custom archiver] unrecognized data block type (0) while searching archive
The follow commands works fine: pg_restore -s db.backup > out.sql pg_restore -l db.backup
Do you think it's possible to recover the dump file, is there any method or tool to recover dump files?