DNS Events Related To Mining Pools — Sigma Rule

Rule metadata and linked tags

Author: Saw Winn Naung, Azure-Sentinel, @neu5ron. Source status: test; severity: low. Source dates: 2021-08-19 / 2022-07-07.

{
  "service": "dns",
  "product": "zeek"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 93c722904e9edaa9b7a524f2ffa45b78a79971379791e993a13f20bc5548ccb3

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: DNS Events Related To Mining Pools
id: bf74135c-18e8-4a72-a926-0e4f47888c19
status: test
description: Identifies clients that may be performing DNS lookups associated with common currency mining pools.
references:
    - https://github.com/Azure/Azure-Sentinel/blob/fa0411f9424b6c47b4d5a20165e4f1b168c1f103/Detections/ASimDNS/imDNS_Miners.yaml
author: Saw Winn Naung, Azure-Sentinel, @neu5ron
date: 2021-08-19
modified: 2022-07-07
tags:
    - attack.execution
    - attack.t1569.002
    - attack.impact
    - attack.t1496
logsource:
    service: dns
    product: zeek
detection:
    selection:
        query|endswith:
            - 'monerohash.com'
            - 'do-dear.com'
            - 'xmrminerpro.com'
            - 'secumine.net'
            - 'xmrpool.com'
            - 'minexmr.org'
            - 'hashanywhere.com'
            - 'xmrget.com'
            - 'mininglottery.eu'
            - 'minergate.com'
            - 'moriaxmr.com'
            - 'multipooler.com'
            - 'moneropools.com'
            - 'xmrpool.eu'
            - 'coolmining.club'
            - 'supportxmr.com'
            - 'minexmr.com'
            - 'hashvault.pro'
            - 'xmrpool.net'
            - 'crypto-pool.fr'
            - 'xmr.pt'
            - 'miner.rocks'
            - 'walpool.com'
            - 'herominers.com'
            - 'gntl.co.uk'
            - 'semipool.com'
            - 'coinfoundry.org'
            - 'cryptoknight.cc'
            - 'fairhash.org'
            - 'baikalmine.com'
            - 'tubepool.xyz'
            - 'fairpool.xyz'
            - 'asiapool.io'
            - 'coinpoolit.webhop.me'
            - 'nanopool.org'
            - 'moneropool.com'
            - 'miner.center'
            - 'prohash.net'
            - 'poolto.be'
            - 'cryptoescrow.eu'
            - 'monerominers.net'
            - 'cryptonotepool.org'
            - 'extrmepool.org'
            - 'webcoin.me'
            - 'kippo.eu'
            - 'hashinvest.ws'
            - 'monero.farm'
            - 'linux-repository-updates.com'
            - '1gh.com'
            - 'dwarfpool.com'
            - 'hash-to-coins.com'
            - 'pool-proxy.com'
            - 'hashfor.cash'
            - 'fairpool.cloud'
            - 'litecoinpool.org'
            - 'mineshaft.ml'
            - 'abcxyz.stream'
            - 'moneropool.ru'
            - 'cryptonotepool.org.uk'
            - 'extremepool.org'
            - 'extremehash.com'
            - 'hashinvest.net'
            - 'unipool.pro'
            - 'crypto-pools.org'
            - 'monero.net'
            - 'backup-pool.com'
            - 'mooo.com' # Dynamic DNS, may want to exclude
            - 'freeyy.me'
            - 'cryptonight.net'
            - 'shscrypto.net'
    exclude_answers:
        answers:
            - '127.0.0.1'
            - '0.0.0.0'
    exclude_rejected:
        rejected: 'true'
    condition: selection and not 1 of exclude_*
falsepositives:
    - A DNS lookup does not necessarily  mean a successful attempt, verify a) if there was a response using the zeek answers field, if there was then verify the connections (conn.log) to those IPs. b) verify if HTTP, SSL, or TLS activity to the domain that was queried. http.log field is 'host' and ssl/tls is 'server_name'.
level: low

Original YAML and metadata in JSON

False positives

• A DNS lookup does not necessarily mean a successful attempt, verify a) if there was a response using the zeek answers field, if there was then verify the connections (conn.log) to those IPs. b) verify if HTTP, SSL, or TLS activity to the domain that was queried. http.log field is 'host' and ssl/tls is 'server_name'.

Source references

• https://github.com/Azure/Azure-Sentinel/blob/fa0411f9424b6c47b4d5a20165e4f1b168c1f103/Detections/ASimDNS/imDNS_Miners.yaml