Elastic high stable eql

Microsoft IIS Connection Strings Decryption

Identifies use of aspnet_regiis to decrypt Microsoft IIS connection strings. An attacker with Microsoft IIS web server access via a webshell or similar access can decrypt and dump any hardcoded connection strings, such as the MSSQL service account password using the aspnet_regiis command.

View Source

Detection Logic

process where host.os.type == "windows" and event.type == "start" and
  (process.name : "aspnet_regiis.exe" or ?process.pe.original_file_name == "aspnet_regiis.exe") and
  process.args : "connectionStrings" and process.args : ("-pdf", "-pd")

Field Validations

Loading…

Comments (0)

Loading comments...