splApache-2.0from splunk/security_content

Access LSASS Memory for Dump Creation

The following analytic detects attempts to dump the LSASS process memory, a common technique in credential dumping attacks. It leverages Sysmon logs, specifically EventCode 10, to identify suspicious call traces to dbgcore.dll and dbghelp.dll associated with lsass.exe. This activity is significant as it often precedes the theft of sensitive login credentials, posing a high risk of unauthorized access to systems and data. If confirmed malicious, attackers could gain access to critical credentials, enabling further compromise and lateral movement within the network.

Quality

FP risk

—

Forks

Views

Rule sourcedetections/endpoint/access_lsass_memory_for_dump_creation.yml

`sysmon` EventCode=10 TargetImage=*lsass.exe CallTrace=*dbgcore.dll* OR CallTrace=*dbghelp.dll*
  | stats count min(_time) as firstTime max(_time) as lastTime
    BY CallTrace EventID GrantedAccess
       Guid Opcode ProcessID
       SecurityID SourceImage SourceProcessGUID
       SourceProcessId TargetImage TargetProcessGUID
       TargetProcessId UserID dest
       granted_access parent_process_exec parent_process_guid
       parent_process_id parent_process_name parent_process_path
       process_exec process_guid process_id
       process_name process_path signature
       signature_id user_id vendor_product
  | `security_content_ctime(firstTime)`
  | `security_content_ctime(lastTime)`
  | `access_lsass_memory_for_dump_creation_filter`