CmdID

CmdID / Rules / Windows

PUA - Rclone Execution

A Sigma rule for process creation on Windows, by Bhabesh Raj, Sittikorn S, Aaron Greetham (@beardofbinary) - NCC Group.

high 1 ATT&CK technique

What it looks for

its detection, as SigmaHQ writes it
detection:
  selection_rclone_cli:
    CommandLine|contains:
      - 'pass'
      - 'user'
      - 'copy'
      - 'sync'
      - 'config'
      - 'lsd'
      - 'remote'
      - 'ls'
      - 'mega'
      - 'pcloud'
      - 'ftp'
      - 'ignore-existing'
      - 'auto-confirm'
      - 'transfers'
      - 'multi-thread-streams'
      - 'no-check-certificate '
  selection_rclone_img:
    - Image|endswith: '\rclone.exe'
    - Description: 'Rsync for cloud storage'
  selection_specific_options:
    CommandLine|contains|all:
      - '--config '
      - '--no-check-certificate '
      - ' copy '
  condition: selection_specific_options or all of selection_rclone_*

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 Bhabesh Raj, Sittikorn S, Aaron Greetham (@beardofbinary) - NCC Group, 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.

ATT&CK

the techniques it is tagged with
T1567.002Exfiltration Over Web Service: Exfiltration to Cloud Storage