Merge pull request #1103 from benichmt1/subnet_ranges

Add module to find subnet ranges (powershell/situation_awareness/network/powerview/get_subnet_ranges)
fix-for-1142
Chris Ross 2018-05-06 14:14:12 -04:00 committed by GitHub
commit 94a4c7da1b
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from lib.common import helpers
class Module:
def __init__(self, mainMenu, params=[]):
self.info = {
'Name': 'Get-SubnetRanges',
'Author': ['@benichmt1'],
'Description': ('Pulls hostnames from AD, performs a Reverse DNS lookup, and parses the output into ranges.'),
'Background' : True,
'OutputExtension' : None,
'NeedsAdmin' : False,
'OpsecSafe' : False,
'Language' : 'powershell',
'MinLanguageVersion' : '2',
'Comments': [
'Uses Powerview to query AD computers'
]
}
# 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' : ''
},
'IPs' : {
'Description' : 'List the resolved individual IPs',
'Required' : False,
'Value' : 'False'
},
'Domain' : {
'Description' : 'The domain to use for the query, defaults to the current domain.',
'Required' : False,
'Value' : ''
}
}
# 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=""):
list_computers = self.options["IPs"]['Value']
# read in the common powerview.ps1 module source code
moduleSource = self.mainMenu.installPath + "/data/module_source/situational_awareness/network/powerview.ps1"
try:
f = open(moduleSource, 'r')
except:
print helpers.color("[!] Could not read module source path at: " + str(moduleSource))
return ""
moduleCode = f.read()
f.close()
# get just the code needed for the specified function
script = helpers.strip_powershell_comments(moduleCode)
script += "\n" + """$Servers = Get-DomainComputer | ForEach-Object {try{Resolve-DNSName $_.dnshostname -Type A -errorAction SilentlyContinue}catch{Write-Warning 'Computer Offline or Not Responding'} } | Select-Object -ExpandProperty IPAddress -ErrorAction SilentlyContinue; $count = 0; $subarry =@(); foreach($i in $Servers){$IPByte = $i.Split("."); $subarry += $IPByte[0..2] -join"."} $final = $subarry | group; Write-Output{The following subnetworks were discovered:}; $final | ForEach-Object {Write-Output "$($_.Name).0/24 - $($_.Count) Hosts"}; """
if list_computers.lower() == "true":
script += "$Servers;"
for option,values in self.options.iteritems():
if option.lower() != "agent":
if values['Value'] and values['Value'] != '':
if values['Value'].lower() == "true":
# if we're just adding a switch
script += " -" + str(option)
else:
script += " -" + str(option) + " " + str(values['Value'])
script += ' | Out-String | %{$_ + \"`n\"};"`n'+ "get_subnet_ranges"+' completed!"'
if obfuscate:
script = helpers.obfuscate(self.mainMenu.installPath, psScript=script, obfuscationCommand=obfuscationCommand)
return script