Techniques
Sample rules
Windows Credential Dumping LSASS Memory Createdump
- source: splunk
- technicques:
- T1003.001
Description
The following analytic detects the use of CreateDump.exe to perform a process dump. This binary is not native to Windows and is often introduced by third-party applications, including PowerShell 7. The detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names, GUIDs, and complete command-line executions. This activity is significant as it may indicate an attempt to dump LSASS memory, which can be used to extract credentials. If confirmed malicious, this could lead to unauthorized access and lateral movement within the network.
Detection logic
| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where Processes.process_name=createdump.exe OR Processes.original_file_name="FX_VER_INTERNALNAME_STR" Processes.process="*-u *" AND Processes.process="*-f *" by Processes.action Processes.dest Processes.original_file_name Processes.parent_process Processes.parent_process_exec Processes.parent_process_guid Processes.parent_process_id Processes.parent_process_name Processes.parent_process_path Processes.process Processes.process_exec Processes.process_guid Processes.process_hash Processes.process_id Processes.process_integrity_level Processes.process_name Processes.process_path Processes.user Processes.user_id Processes.vendor_product
| `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `windows_credential_dumping_lsass_memory_createdump_filter`