Re: Question about excluding rules

Those particular logs generated by a third party monitoring application named Microfocus, which keeps on running "ps -auxwwww" command and filling up quickly the audit log.

> On Thursday, February 20, 2020 6:36:46 PM EST Moshe Rechtman wrote: > > $ cat audit.rules > > > > # This file contains the auditctl rules that are loaded > > # whenever the audit daemon is started via the initscripts. > > # The rules are simply the parameters that would be passed > > # to auditctl. > > > > # First rule - delete all > > -D > > > > # Increase the buffers to survive stress events. > > # Make this bigger for busy systems > > -b 320 > > > > # Feel free to add below this line. See auditctl man page > > > > -a exit,always -F arch=b64 -F euid=0 -S execve -k rootact > > -a exit,always -F arch=b32 -F euid=0 -S execve -k rootact > > -a exit,always -F arch=b64 -F euid>=500 -S execve -k useract > > -a exit,always -F arch=b32 -F euid>=500 -S execve -k useract > > > > > > Audit start working as expected. Now customer is asking to > > exclude/ignore the following from audit logs: > > > > type=SYSCALL msg=audit(1581664357.597:257516): arch=c000003e > > syscall=59 success=yes exit=0 a0=3869161ea3 a1=7ffd15530c20 > > a2=7ffd15534348 a3=3869617240 items=2 ppid=3350 pid=59266 > > auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 > > fsgid=0 tty=(none) ses=4294967295 comm="sh" exe="/bin/bash" > > key="rootact" > > type=EXECVE msg=audit(1581664357.597:257516): argc=3 a0="sh" a1="-c" > > a2=2F62696E2F70732061757877777777 > > type=CWD msg=audit(1581664357.597:257516): > > cwd="/opt/microfocus/Discovery/bin" type=PATH > > msg=audit(1581664357.597:257516): item=0 name="/bin/sh" inode=398 > > dev=fd:01 mode=0100755 ouid=0 ogid=0 rdev=00:00 > > nametype=NORMAL > > type=PATH msg=audit(1581664357.597:257516): item=1 name=(null) > > inode=4481 dev=fd:01 mode=0100755 ouid=0 ogid=0 rdev=00:00 > > nametype=NORMAL > > > > ype=SYSCALL msg=audit(1581664357.601:257517): arch=c000003e syscall=59 > > success=yes exit=0 a0=155c2f0 a1=155b8d0 a2=155b460 a3=18 items=2 > > ppid=3350 pid=59266 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 > > egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="ps" > > exe="/bin/ps" key="rootact" > > type=EXECVE msg=audit(1581664357.601:257517): argc=2 a0="/bin/ps" > > a1="auxwwww" type=CWD msg=audit(1581664357.601:257517): > > cwd="/opt/microfocus/Discovery/bin" type=PATH > > msg=audit(1581664357.601:257517): item=0 name="/bin/ps" inode=1451 > > dev=fd:01 mode=0100755 ouid=0 ogid=0 rdev=00:00 > > nametype=NORMAL > > type=PATH msg=audit(1581664357.601:257517): item=1 name=(null) > > inode=4481 dev=fd:01 mode=0100755 ouid=0 ogid=0 rdev=00:00 > > nametype=NORMAL > > > > What would be the best way to exclude such audit? > > Your help would be much appreciated. > > What's objectionable about these events? The fact that its got a key says > they think they wanted it. > > -Steve