Program Executed Using Proxy/Local Command Via SSH.EXE

detection:
  selection_cli_flags:
    - CommandLine|contains: 'ProxyCommand='
    - CommandLine|contains|all:
        - 'PermitLocalCommand=yes'
        - ' LocalCommand'
  selection_cli_img:
    - Image|endswith: '\ssh.exe'
    - Product: 'OpenSSH for Windows'
    - Hashes|contains:
        - 'IMPHASH=55b4964d29aad5438b9e950052dbbbc0'
        - 'IMPHASH=334d66c33503ccbf647c15b47c27eef4'
        - 'IMPHASH=27b0da080ef92afb37983d30d839141e'
        - 'IMPHASH=977eb4c263d384e47daa0712d34713ab'
        - 'IMPHASH=3eaadce9ae43d5a918bb082065815c3b'
        - 'IMPHASH=980fe6cf0d996ab1eedf877222e722aa'
        - 'IMPHASH=5f959422308ac3d721010d66647e100e'
        - 'IMPHASH=a49aaa3d03d1cd9c8dc7fca60f7f480b'
        - 'IMPHASH=dd335f759b6d5d6a8382b71dd9d65791'
  selection_parent:
    ParentImage: 'C:\Windows\System32\OpenSSH\sshd.exe'
  condition: selection_parent or all of selection_cli_*

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 frack113, Nasreddine Bencherchali, 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.

The commands documented for scp.exe, sftp.exe, ssh.exe trip it: each is on its program’s page, read by CmdID.