System Configuration Files
/etc/passwd
- Contains local user account information./etc/security/passwd
- Contains encrypted user passwords./etc/shadow
- If exists, contains shadow passwords./etc/group
- Contains group information./etc/security/group
- Contains additional group definitions./etc/services
- Defines network services and ports./etc/inittab
- Initialization table./etc/hosts
- Contains local DNS entries./etc/resolv.conf
- Contains DNS client configuration./etc/exports
- NFS export configuration./etc/security/user
- Contains user-specific security settings./etc/sudoers
- Contains sudo configuration.
User Directories
/home/*
- User home directories often contain interesting files.
Log Files
/var/log/audit/audit.log
- Audit logs./var/log/syslog
- System logs./var/adm/sulog
- Contains log of su command usage./var/adm/wtmp
and/var/adm/lastlog
- Contains login records.
Network Configuration
/etc/rc.tcpip
- Contains TCP/IP startup script./etc/protocols
- Contains network protocols definitions./etc/rpc
- Contains Remote Procedure Call information.
Software
/usr/bin/
- Common binaries./usr/sbin/
- System binaries./usr/local/bin/
- Locally installed binaries./usr/local/sbin/
- Locally installed system binaries./opt/
- Optional add-on software.
System Information
/proc
- Contains process information./etc/oslevel
- Contains OS level information.
Backup and Archive Files
Any .bak
, .tar
, .zip
, .gz
, etc. files, especially in directories associated with important services or applications.
find / -type f -name "*.zip" 2>/dev/null
Resources
- https://downloads.cisecurity.org/ - IBM AIX Benchmark