diff --git a/rules/linux/process_creation/proc_creation_lnx_webshell_detection.yml b/rules/linux/process_creation/proc_creation_lnx_webshell_detection.yml index 11140a97aed..b266de3ef46 100644 --- a/rules/linux/process_creation/proc_creation_lnx_webshell_detection.yml +++ b/rules/linux/process_creation/proc_creation_lnx_webshell_detection.yml @@ -5,9 +5,9 @@ description: Detects suspicious sub processes of web server processes references: - https://www.acunetix.com/blog/articles/web-shells-101-using-php-introduction-web-shells-part-2/ - https://media.defense.gov/2020/Jun/09/2002313081/-1/-1/0/CSI-DETECT-AND-PREVENT-WEB-SHELL-MALWARE-20200422.PDF -author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) +author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems), CheraghiMilad date: 2021-10-15 -modified: 2022-12-28 +modified: 2024-12-18 tags: - attack.persistence - attack.t1505.003 @@ -33,17 +33,23 @@ detection: - 'websphere' sub_processes: Image|endswith: - - '/whoami' - - '/ifconfig' - - '/ip' - - '/bin/uname' - '/bin/cat' - '/bin/crontab' + - '/bin/ufw' + - '/bin/uname' - '/hostname' + - '/id' + - '/ifconfig' + - '/ip' - '/iptables' - '/netstat' + - '/nslookup' - '/pwd' - '/route' + - '/users' + - '/w' + - '/who' + - '/whoami' condition: 1 of selection_* and sub_processes falsepositives: - Web applications that invoke Linux command line tools