Query: Sigma rule for Detects certain parent child patterns found in cases in which a web shell is used to perform certain credential dumping
Matching passage: Sigma rule: Detects certain parent child patterns found in cases in which a web shell is used to perform certain credential dumping. Logsource: windows / process_creation. Rule: title: Webshell Hacking Activity Patterns id: 4ebc877f-4612-45cb-b3a5-8e3834db36c9 status: test description: 'Detects certain parent child patterns found in cases in which a web shell is used to perform certain credential dumping or exfiltration activities on a compromised system ' references: - https://youtu.be/7aemGhaE9ds?t=641 author: Florian Roth (Nextron Systems) date: 2022-03-17 modified: 2023-11-09 tags: - attack.persistence - attack.discovery - attack.t1505.003 - attack.t1018 - attack.t1033 - attack.t1087 logsource: category: process_creation product: windows detection: selection_webserver_image: ParentImage|endswith: - \caddy.exe - \httpd.exe - \nginx.exe - \php-cgi.exe - \w3wp.exe - \ws_tomcatservice.exe selection_webserver_characteristics_tomcat1: ParentImage|endswith: - \java.exe - \javaw.exe ParentImage|contains: - -tomcat- - \tomcat selection_webserver_characteristics_tomcat2: ParentImage|endswith: - \java.exe - \javaw.exe CommandLine|contains: - catalina.jar - CATALINA_HOME selection_child_1: CommandLine|contains|all: - rundll32 - comsvcs selection_child_2: CommandLine|contains|all: - ' -hp' - ' a ' - ' -m' selection_child_3: CommandLine|contains|all: - net - ' user ' - ' /add' selection_child_4: CommandLine|contains|all: - net - ' localgroup ' - ' administrators ' - /add selection_child_5: Image|endswith: - \ntdsutil.exe - \ldifde.exe - \adfind.exe - \procdump.exe - \Nanodump.exe - \vssadmin.exe - \fsutil.exe selection_child_6: CommandLine|contains: - ' -decode ' - ' -NoP ' - ' -W Hidden ' - ' /decode ' - ' /ticket:' - ' sekurlsa' - .dmp full - .downloadfile( - .downloadstring( - FromBase64String - process call create - 'reg save ' - whoami /priv condition: 1 of selection_webserver_* and 1 of selection_child_* falsepositives: - Unlikely level: high
Near-miss passage: Sigma rule: Detects when a firewall rule is modified or deleted in Google Cloud Platform (GCP).. Logsource: gcp / gcp.audit. Rule: title: Google Cloud Firewall Modified or Deleted id: fe513c69-734c-4d4a-8548-ac5f609be82b status: test description: Detects when a firewall rule is modified or deleted in Google Cloud Platform (GCP). references: - https://cloud.google.com/kubernetes-engine/docs/how-to/audit-logging - https://developers.google.com/resources/api-libraries/documentation/compute/v1/java/latest/com/google/api/services/compute/Compute.Firewalls.html author: Austin Songer @austinsonger date: 2021-08-13 modified: 2022-10-09 tags: - attack.defense-impairment - attack.t1685 logsource: product: gcp service: gcp.audit detection: selection: gcp.audit.method_name: - v*.Compute.Firewalls.Delete - v*.Compute.Firewalls.Patch - v*.Compute.Firewalls.Update - v*.Compute.Firewalls.Insert condition: selection falsepositives: - Firewall rules being modified or deleted may be performed by a system administrator. Verify that the firewall configuration change was expected. - Exceptions can be added to this rule to filter expected behavior. level: medium