Clipboard Access Via OSAScript

A Sigma rule for process creation on macOS, by Sohan G (D4rkCiph3r).

medium 2 ATT&CK techniques 1 program it names

What it looks for

its detection, as SigmaHQ writes it

detection:
  filter_optional_opencode:
    CommandLine|contains|all:
      - 'osascript'
      - ' -e '
      - 'set imageData to the clipboard'
      - 'set fileRef'
    ParentImage|endswith: 'opencode'
  selection:
    CommandLine|contains|all:
      - ' -e '
      - 'clipboard'
    Image|endswith: '/osascript'
  condition: selection and not 1 of filter_optional_*

The rule’s detection, its selections and fields in order of name. The whole rule, with its references and false positives, is on SigmaHQ, by Sohan G (D4rkCiph3r), under the Detection Rule License 1.1. CmdID evaluates it on a command line alone: a test on what a command line cannot show, such as the parent process or the user, is not met.

None of the everyday examples and documented commands on CmdID’s program pages trips it. To see whether a command line does, paste it into CmdID.

Programs and files it names

their pages here

osascript

ATT&CK

the techniques it is tagged with

T1059.002Command and Scripting Interpreter: AppleScript

T1115Clipboard Data

Clipboard Access Via OSAScript

What it looks for

Programs and files it names

ATT&CK

Other rules for T1059.002 Command and Scripting Interpreter: AppleScript