Query: write Sigma for Identifies clients that may be performing DNS lookups associated with common currency mining pools.
Matching passage: Sigma rule: Identifies clients that may be performing DNS lookups associated with common currency mining pools.. Logsource: zeek / dns. Rule: 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 - 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
Near-miss passage: Sigma rule: Detect usage of the "runexehelper.exe" binary as a proxy to launch other programs. Logsource: windows / process_creation. Rule: title: Lolbin Runexehelper Use As Proxy id: cd71385d-fd9b-4691-9b98-2b1f7e508714 status: test description: Detect usage of the "runexehelper.exe" binary as a proxy to launch other programs references: - https://twitter.com/0gtweet/status/1206692239839289344 - https://lolbas-project.github.io/lolbas/Binaries/Runexehelper/ author: frack113 date: 2022-12-29 tags: - attack.stealth - attack.t1218 logsource: category: process_creation product: windows detection: selection: ParentImage|endswith: \runexehelper.exe condition: selection falsepositives: - Unknown level: medium