SigmaHQ/rules/linux/auditd/lnx_auditd_susp_exe_folders.yml
2019-11-12 23:12:27 +01:00

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1.4 KiB
YAML

title: Program Executions in Suspicious Folders
id: a39d7fa7-3fbd-4dc2-97e1-d87f546b1bbc
status: experimental
description: Detects program executions in suspicious non-program folders related to malware or hacking activity
references:
- Internal Research
date: 2018/01/23
author: Florian Roth
logsource:
product: linux
service: auditd
detection:
selection:
type: 'SYSCALL'
exe:
# Temporary folder
- '/tmp/*'
# Web server
- '/var/www/*' # Standard
- '/home/*/public_html/*' # Per-user
- '/usr/local/apache2/*' # Classical Apache
- '/usr/local/httpd/*' # Old SuSE Linux 6.* Apache
- '/var/apache/*' # Solaris Apache
- '/srv/www/*' # SuSE Linux 9.*
- '/home/httpd/html/*' # Redhat 6 or older Apache
- '/srv/http/*' # ArchLinux standard
- '/usr/share/nginx/html/*' # ArchLinux nginx
# Data dirs of typically exploited services (incomplete list)
- '/var/lib/pgsql/data/*'
- '/usr/local/mysql/data/*'
- '/var/lib/mysql/*'
- '/var/vsftpd/*'
- '/etc/bind/*'
- '/var/named/*'
condition: selection
falsepositives:
- Admin activity (especially in /tmp folders)
- Crazy web applications
level: medium