Query: Sigma YAML for windows / process_creation
Matching passage: Sigma rule: Detects potentially suspicious processes being spawned by a web server process which could be the result of a successful. Logsource: windows / process_creation. Rule: title: Suspicious Process By Web Server Process id: 8202070f-edeb-4d31-a010-a26c72ac5600 status: test description: 'Detects potentially suspicious processes being spawned by a web server process which could be the result of a successfully placed web shell or exploitation ' references: - https://media.defense.gov/2020/Jun/09/2002313081/-1/-1/0/CSI-DETECT-AND-PREVENT-WEB-SHELL-MALWARE-20200422.PDF author: Thomas Patzke, Florian Roth (Nextron Systems), Zach Stanford @svch0st, Tim Shelton, Nasreddine Bencherchali (Nextron Systems) date: 2019-01-16 modified: 2024-11-26 tags: - attack.persistence - attack.initial-access - attack.t1505.003 - attack.t1190 logsource: category: process_creation product: windows detection: selection_webserver_image: ParentImage|endswith: - \caddy.exe - \httpd.exe - \nginx.exe - \php-cgi.exe - \php.exe - \tomcat.exe - \UMWorkerProcess.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 ParentCommandLine|contains: - CATALINA_HOME - catalina.home - catalina.jar selection_anomaly_children: Image|endswith: - \arp.exe - \at.exe - \bash.exe - \bitsadmin.exe - \certutil.exe - \cmd.exe - \cscript.exe - \dsget.exe - \hostname.exe - \nbtstat.exe - \net.exe - \net1.exe - \netdom.exe - \netsh.exe - \nltest.exe - \ntdsutil.exe - \powershell_ise.exe - \powershell.exe - \pwsh.exe - \qprocess.exe - \query.exe - \qwinsta.exe - \reg.exe - \rundll32.exe - \sc.exe - \sh.exe - \wmic.exe - \wscript.exe - \wusa.exe filter_main_fp_1: ParentImage|endswith: \java.exe CommandLine|endswith: Windows\system32\cmd.exe /c C:\ManageEngine\ADManager "Plus\ES\bin\elasticsearch.bat -Enode.name=RMP-NODE1 -pelasticsearch-pid.txt filter_main_fp_2: ParentImage|endswith: \java.exe CommandLine|contains|all: - sc query - ADManager Plus condition: 1 of selection_webserver_* and selection_anomaly_children and not 1 of filter_main_* falsepositives: - Particular web applications may spawn a shell process legitimately level: high
Near-miss passage: Sigma rule: Detects the dump of highly sensitive files such as "NTDS.DIT" and "SECURITY" hive. Attackers can leverage the "wbadmin". Logsource: windows / process_creation. Rule: title: Sensitive File Recovery From Backup Via Wbadmin.EXE id: 84972c80-251c-4c3a-9079-4f00aad93938 related: - id: 6fe4aa1e-0531-4510-8be2-782154b73b48 type: derived status: test description: 'Detects the dump of highly sensitive files such as "NTDS.DIT" and "SECURITY" hive. Attackers can leverage the "wbadmin" utility in order to dump sensitive files that might contain credential or sensitive information. ' references: - https://github.com/LOLBAS-Project/LOLBAS/blob/2cc01b01132b5c304027a658c698ae09dd6a92bf/yml/OSBinaries/Wbadmin.yml - https://lolbas-project.github.io/lolbas/Binaries/Wbadmin/ - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/wbadmin-start-recovery - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/wbadmin-start-backup author: Nasreddine Bencherchali (Nextron Systems), frack113 date: 2024-05-10 tags: - attack.credential-access - attack.t1003.003 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \wbadmin.exe - OriginalFileName: WBADMIN.EXE selection_backup: CommandLine|contains|all: - ' recovery' - recoveryTarget - itemtype:File CommandLine|contains: - \config\SAM - \config\SECURITY - \config\SYSTEM - \Windows\NTDS\NTDS.dit condition: all of selection_* falsepositives: - Unknown level: high