Files
sigma-rules/rta/lateral_commands.py
T
2023-10-03 10:47:58 -04:00

97 lines
3.4 KiB
Python

# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
# or more contributor license agreements. Licensed under the Elastic License
# 2.0; you may not use this file except in compliance with the Elastic License
# 2.0.
# Name: Lateral Movement Commands
# RTA: lateral_commands.py
# Elatic Detection: Local Service Commands
# signal.rule.name: Local Scheduled Task Commands
# signal.rule.name: Whoami Process Activity
# ATT&CK: T1021, T1047, T1077, T1124, T1126
# Description: Runs various Windows commands typically used by attackers to move laterally from the local machine.
import os
import re
import sys
from . import common
from . import RtaMetadata
metadata = RtaMetadata(
uuid="389392dc-61db-4e45-846f-099f7d289c1b",
platforms=["windows"],
endpoint=[],
siem=[{"rule_id": "d61cbcf8-1bc1-4cff-85ba-e7b21c5beedc", "rule_name": "Service Command Lateral Movement"}],
techniques=["T1569", "T1021", "T1543"],
)
MY_APP = common.get_path("bin", "myapp.exe")
@common.requires_os(*metadata.platforms)
@common.dependencies(MY_APP)
def main(remote_host=None):
remote_host = remote_host or common.get_ip()
common.log("Attempting to laterally move to %s" % remote_host)
remote_host = common.get_ipv4_address(remote_host)
common.log("Using ip address %s" % remote_host)
# Put the hostname in quotes for WMIC, but leave it as is
if not re.match(common.IP_REGEX, remote_host):
wmi_node = '"{}"'.format(remote_host)
else:
wmi_node = remote_host
commands = [
"sc.exe \\\\{host} create test_service binPath= %s" % MY_APP,
"sc.exe \\\\{host} config test_service binPath= c:\\windows\\system32\\ipconfig.exe",
"sc.exe \\\\{host} failure test_service command= c:\\windows\\system32\\net.exe",
"sc.exe \\\\{host} start test_service",
"sc.exe \\\\{host} delete test_service",
"wmic.exe /node:{wmi_node} process call create ipconfig.exe",
"wmic.exe /node:{wmi_node} path WIN32_USERACCOUNT where(name='vagrant') set passwordexpires='false'",
"net.exe time \\\\{host}",
"net.exe use \\\\{host}\\admin$",
"net.exe use \\\\{host}\\admin$ /delete",
"net.exe use \\\\{host}\\c$",
"net.exe use \\\\{host}\\c$ /delete",
]
for command in commands:
common.execute(command.format(host=remote_host, wmi_node=wmi_node))
_, whoami = common.execute(["whoami"])
_, hostname = common.execute(["hostname"])
domain, user = whoami.lower().split("\\")
hostname = hostname.lower()
schtasks_host = remote_host
# Check if the account is local or a domain
if domain in (hostname, "NT AUTHORITY"):
common.log("Need password for remote scheduled task in workgroup. Performing instead on %s." % common.get_ip())
schtasks_host = common.get_ip()
task_name = "test_task-%d" % os.getpid()
schtask_commands = [
r"schtasks /s {host} /delete /tn {name} /f",
r"schtasks /s {host} /create /SC MONTHLY /MO first /D SUN /tn {name} /tr c:\windows\system32\ipconfig.exe /f",
r"schtasks /s {host} /run /tn {name}",
r"schtasks /s {host} /delete /tn {name} /f",
]
for command in schtask_commands:
command = command.format(host=schtasks_host, name=task_name)
common.execute(command)
# Remote powershell
common.execute(["C:\\Windows\\system32\\wsmprovhost.exe", "-Embedding"], timeout=5, kill=True)
if __name__ == "__main__":
exit(main(*sys.argv[1:]))