- title: RDP over Reverse SSH Tunnel WFP
id: 5bed80b6-b3e8-428e-a3ae-d3c757589e41
status: experimental
description: Detects svchost hosting RDP termsvcs communicating with the loopback
address and on TCP port 3389
references:
- https://twitter.com/SBousseaden/status/1096148422984384514
author: Samir Bousseaden
date: 2019/02/16
tags:
- attack.defense_evasion
- attack.command_and_control
- attack.t1076
- car.2013-07-002
logsource:
product: windows
service: security
category: null
detection:
selection:
EventID: 5156
sourceRDP:
SourcePort: 3389
DestinationAddress:
- 127.*
- ::1
destinationRDP:
DestinationPort: 3389
SourceAddress:
- 127.*
- ::1
condition: selection and ( sourceRDP or destinationRDP )
falsepositives:
- unknown
level: high
In [ ]:
from elasticsearch import Elasticsearch
from elasticsearch_dsl import Search
import pandas as pd
In [ ]:
es = Elasticsearch(['http://helk-elasticsearch:9200'])
searchContext = Search(using=es, index='logs-endpoint-winevent-security-*', doc_type='doc')
In [ ]:
s = searchContext.query('query_string', query='(event_id:"5156" AND ((src_port:"3389" AND DestinationAddress.keyword:(127.* OR \:\:1)) OR (dst_port:"3389" AND src_ip_addr.keyword:(127.* OR \:\:1))))')
response = s.execute()
if response.success():
df = pd.DataFrame((d.to_dict() for d in s.scan()))
In [ ]:
df.head()