stpm-exfiltrate: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/stpm-exfiltrate - from package: simple-tpm-pk11

You may install the required package with command apt-get install {package}
Error in other languages:
stpm-exfiltrate: bevel nie gevind nie
stpm-exfiltrate: comandă negăsită
stpm-exfiltrate: comando não encontrado
stpm-exfiltrate: commande introuvable
stpm-exfiltrate: command not found
stpm-exfiltrate: käsku ei ole
stpm-exfiltrate: không tìm thấy lệnh
stpm-exfiltrate: komanda nerasta
stpm-exfiltrate: Kommando nicht gefunden.
stpm-exfiltrate: kommandot finns inte
stpm-exfiltrate: komut yok
stpm-exfiltrate: nie znaleziono polecenia
stpm-exfiltrate: níor aimsíodh an t-ordú
stpm-exfiltrate: no se encontró la orden
stpm-exfiltrate: no s'ha trobat l'ordre
stpm-exfiltrate: opdracht niet gevonden
stpm-exfiltrate: parancs nem található
stpm-exfiltrate: perintah tidak ditemukan
stpm-exfiltrate: príkaz nenájdený
stpm-exfiltrate: příkaz nenalezen
stpm-exfiltrate: команда не найдена
stpm-exfiltrate: командата не е открита
stpm-exfiltrate: 命令找不到
stpm-exfiltrate: コマンドが見つかりません