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Added --get-sid flag on mssql protocol #1099

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Added --get-sid flag on mssql protocol #1099

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15 changes: 15 additions & 0 deletions nxc/protocols/mssql.py
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Original file line number Diff line number Diff line change
Expand Up @@ -420,6 +420,21 @@ def handle_mssql_reply(self):
_type = f"{key['Type']:d}"
return f"(ENVCHANGE({_type}): Old Value: {record['OldValue'].decode('utf-16le')}, New Value: {record['NewValue'].decode('utf-16le')})"

def get_sid(self):
try:
query_output = self.conn.sql_query("SELECT DEFAULT_DOMAIN()")
self.logger.debug(f"get_sid: DEFAULT_DOMAIN() result: {query_output}")
domain = query_output[0][""]

raw_sid = self.conn.sql_query(f"SELECT SUSER_SID('{domain}\\Domain Admins')")[0][""]
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@mpgn mpgn Feb 7, 2026

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quick comment;

  • it only work for english system
  • what if it's local (no domain join)

self.logger.debug(f"get_sid: raw SID bytes: {raw_sid}")
domain_sid = SID(bytes.fromhex(raw_sid.decode())).formatCanonical()
domain_sid = "-".join(domain_sid.split("-")[:-1])
self.logger.highlight(f"Domain SID {domain_sid}")
except Exception as e:
self.logger.fail(f"Failed to get domain SID: {e}")
self.logger.debug("get_sid error", exc_info=True)

def rid_brute(self, max_rid=None):
entries = []
if not max_rid:
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1 change: 1 addition & 0 deletions nxc/protocols/mssql/proto_args.py
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Expand Up @@ -36,4 +36,5 @@ def proto_args(parser, parents):

mapping_enum_group = mssql_parser.add_argument_group("Mapping/Enumeration")
mapping_enum_group.add_argument("--rid-brute", nargs="?", type=int, const=4000, metavar="MAX_RID", help="enumerate users by bruteforcing RIDs")
mapping_enum_group.add_argument("--get-sid", action="store_true", help="Get domain sid")
return parser
1 change: 1 addition & 0 deletions tests/e2e_commands.txt
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Expand Up @@ -259,6 +259,7 @@ netexec winrm TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS -M aws-cr
netexec mssql TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS # Need a space at the end for kerb regex
netexec {DNS} mssql TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS # Need a space at the end for kerb regex
netexec mssql TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS --rid-brute
netexec mssql TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS --get-sid
netexec mssql TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS --database
netexec mssql TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS --sam
netexec mssql TARGET_HOST -u LOGIN_USERNAME -p LOGIN_PASSWORD KERBEROS --lsa
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