BIOC Informational

Tampering with Windows Security Support Provider DLLs

Windows Security Support Provider (SSP) DLLs are loaded into the Local Security Authority (LSA) process at system start. Once loaded into the LSA, SSP DLLs have access to encrypted and plaintext passwords that are stored on Windows, such as any logged-on user's Domain password etc. CurrentControlSet is replaced with * because it can be replaced with ControlSet001 or ControlSet002.

Module:
Platform Analytics
Agent event type:
Registry
Category:
Persistence
Status:
Enabled
ATT&CK tactics: Persistence (TA0003)
ATT&CK techniques: Boot or Logon Autostart Execution: Security Support Provider (T1547.005)
Indicator:

Registry action type = all AND registry key name = *\SYSTEM\*ControlSet*\Control\Lsa\OSConfig , *\SYSTEM\*ControlSet*\Control\Lsa AND registry value name = *Security Packages* Host host os = windows

Preventable: yes