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##:::: ##:: ##:: ##:::: ##: ##::::::: ####'####::. ####::::'##:. ##:: ##:::..:: ##:::..::
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..:::::..::....::........:::........::..:::::..:::::..:::::..:::::..:::......::::......:::
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轻轻地我走了 正如给我轻轻地来
我轻轻地挥手 作别西边的云彩
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This is a tool for wiping access log when you really wanna hide yourself from admin. We're modifying those systemlog very carefully by removing one single log record instead of the whole log file. Also, the file permission, owner/group and ctime/atime are kept as the old file.
Usage: ./hidemyass [ENTRIES] [FILTERS] ACTIONS
ENTRIES:
-u, --utmp=utmp_file
specify the path to utmp file, which is /var/run/utmp by default
utmp file is read by 'who','w' and other commands
-w, --wtmp=wtmp_file
specify the path to wtmp file, which is /var/log/wtmp by default
wtmp is read by 'last' and other commands
-b, --btmp=btmp_file
specify the path to btmp file, which is /var/log/btmp by default
btmp is read by 'lastb' and other commands
for some systems the bad login attempts are written to
/var/log/auth.log or /var/log/secure instead of btmp
-l, --lastlog=lastlog_file
specify the path to lastlog file, which is /var/log/lastlog by default
lastlog is read by 'lastlog' and other commands
note the only valid FILTERS for lastlog is username(-n)
FILTERS:
-n, --name=username
specify log record by username
-a, --address=host
specify log record by host ip address
-t, --time=time
specify log record by time (YYYY:MM:DD:HH:MM:SS)
ACTIONS:
-p, --print
print records for specified ENTRIES
-c, --clear
clear records for specified ENTRIES with FILTERS
usually you need permission to tamper logs
-h, --help
show this message and exit
- print utmp records
./hidemyass -u -p
- print utmp records in another path
./hidemyass --utmp=/var/adm/utmpx -p
- print all records
./hidemyass -uwbl -p
- modify lastlog record for user root to time 2017/04/01 13:26:00
[sudo] ./hidemyass -l -n root -t 2017:04:01:13:26:00 -c
- clean all tmpx records that from ip 220.181.57.217
[sudo] ./hidemyass -uwb -a 220.181.57.217 -c
- /var/log/auth.log
- /var/log/secure
- /var/log/faillog
- /var/log/maillog
Since you could modify system log, that usually means you have already got
privilege escalation. As a result, you may want to clear other logs too,
such as /var/log/kern.log
, /var/log/syslog
, /var/log/dmesg
, /var/log/messages
and some
application crash logs.