Potential Linux Credential Dumping via Mimipenguin

[rule]
description = """
Identifies the execution of the mimipenguin exploit script which is linux adaptation of Windows tool mimikatz.
Mimipenguin exploit script is used to dump clear text passwords from a currently logged-in user. The tool exploits a
known vulnerability CVE-2018-20781. Malicious actors can exploit the cleartext credentials in memory by dumping the
process and extracting lines that have a high probability of containing cleartext passwords.
"""
id = "ff106396-2a52-40a2-97be-3e933bc0adbc"
license = "Elastic License v2"
name = "Potential Linux Credential Dumping via Mimipenguin"
os_list = ["linux"]
reference = [
    "https://github.com/huntergregal/mimipenguin",
    "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20781",
]
version = "1.0.1"

query = '''
process where event.type == "start" and event.action == "exec" and process.name like "python*" and
process.parent.name in ("bash", "dash", "sh", "tcsh", "csh", "zsh", "ksh", "fish") and
process.command_line like """python* -c from __future__ import print_function; import crypt; print(crypt.crypt("*", "$$$"))"""
'''

min_endpoint_version = "7.15.0"
optional_actions = []
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0

[[actions]]
action = "kill_process"
field = "process.parent.entity_id"
state = 0

[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1003"
name = "OS Credential Dumping"
reference = "https://attack.mitre.org/techniques/T1003/"
[[threat.technique.subtechnique]]
id = "T1003.008"
name = "/etc/passwd and /etc/shadow"
reference = "https://attack.mitre.org/techniques/T1003/008/"



[threat.tactic]
id = "TA0006"
name = "Credential Access"
reference = "https://attack.mitre.org/tactics/TA0006/"

[internal]
min_endpoint_version = "7.15.0"