WMI Execution with Command Line Redirection

Identifies command execution via WMI with redirected output. WMI provides a method to execute a process on a local or remote host, but does not expose a way to read any console output. To get around this restriction, some administrators or attackers will execute cmd.exe with output redirection to a file. Then the file can be retrieved to read program output.

id:7c7f3114-7bdd-4477-a4e0-b5105b6babd8
categories:detect
confidence:medium
os:windows
created:12/04/2019
updated:12/04/2019

MITRE ATT&CK™ Mapping

tactics:Collection
techniques:T1074 Data Staged

Query

sequence with maxspan=5s by unique_pid
  [process where subtype.create and process_name == "cmd.exe" and command_line == "*>*" and
    descendant of [process where process_name == "wmiprvse.exe"]]
  [file where subtype.create and wildcard(file_name, "*.txt", "*.log")]

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