Problem brtools invalid user name/password (from lost some OPS$ user)

 ** Myself

brconnect -u / -c -f stats -t oradict_stats

BR0801I BRCONNECT 7.00 (34)

BR0805I Start of BRCONNECT processing: ceklcwpo.sta 2013-01-30 20.53.48

BR0484I BRCONNECT log file: /oracle/QAS/sapcheck/ceklcwpo.sta

BR0280I BRCONNECT time stamp: 2013-01-30 20.53.48

BR0301E SQL error -1017 at location db_connect-2, SQL statement:

'CONNECT /'

ORA-01017: invalid username/password; logon denied

BR0310E Connect to database instance QAS failed

#go to sql command 

select username from dba_users;

USERNAME

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OPS$QASADM

SAPSR3

SYS

SYSTEM