Home/CVE-2019-11840/Sigma rules
Sigma

Sigma rules for CVE-2019-11840

8 rules · scoped to cve · back to CVE-2019-11840
Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.

Detection rules

8 of 8
direct high
Linux Crypto Mining Pool Connections
Detects process connections to a Monero crypto mining pool
status stable author Florian Roth (Nextron Systems) id a46c93b7-55ed-4d27-a41b-c259456c4746 license Sigma · DRL-1.1
view Sigma YAML
title: Linux Crypto Mining Pool Connections
id: a46c93b7-55ed-4d27-a41b-c259456c4746
status: stable
description: Detects process connections to a Monero crypto mining pool
references:
    - https://www.poolwatch.io/coin/monero
author: Florian Roth (Nextron Systems)
date: 2021-10-26
tags:
    - attack.impact
    - attack.t1496
logsource:
    product: linux
    category: network_connection
detection:
    selection:
        DestinationHostname:
            - 'pool.minexmr.com'
            - 'fr.minexmr.com'
            - 'de.minexmr.com'
            - 'sg.minexmr.com'
            - 'ca.minexmr.com'
            - 'us-west.minexmr.com'
            - 'pool.supportxmr.com'
            - 'mine.c3pool.com'
            - 'xmr-eu1.nanopool.org'
            - 'xmr-eu2.nanopool.org'
            - 'xmr-us-east1.nanopool.org'
            - 'xmr-us-west1.nanopool.org'
            - 'xmr-asia1.nanopool.org'
            - 'xmr-jp1.nanopool.org'
            - 'xmr-au1.nanopool.org'
            - 'xmr.2miners.com'
            - 'xmr.hashcity.org'
            - 'xmr.f2pool.com'
            - 'xmrpool.eu'
            - 'pool.hashvault.pro'
            - 'moneroocean.stream'
            - 'monerocean.stream'
    condition: selection
falsepositives:
    - Legitimate use of crypto miners
level: high
direct high
Linux Crypto Mining Indicators
Detects command line parameters or strings often used by crypto miners
status test author Florian Roth (Nextron Systems) id 9069ea3c-b213-4c52-be13-86506a227ab1 license Sigma · DRL-1.1
view Sigma YAML
title: Linux Crypto Mining Indicators
id: 9069ea3c-b213-4c52-be13-86506a227ab1
status: test
description: Detects command line parameters or strings often used by crypto miners
references:
    - https://www.poolwatch.io/coin/monero
author: Florian Roth (Nextron Systems)
date: 2021-10-26
modified: 2022-12-25
tags:
    - attack.impact
    - attack.t1496
logsource:
    product: linux
    category: process_creation
detection:
    selection:
        CommandLine|contains:
            - ' --cpu-priority='
            - '--donate-level=0'
            - ' -o pool.'
            - ' --nicehash'
            - ' --algo=rx/0 '
            - 'stratum+tcp://'
            - 'stratum+udp://'
            # Sub process started by xmrig - the most popular Monero crypto miner - unknown if this causes any false positives
            - 'sh -c /sbin/modprobe msr allow_writes=on'
            # base64 encoded: --donate-level=
            - 'LS1kb25hdGUtbGV2ZWw9'
            - '0tZG9uYXRlLWxldmVsP'
            - 'tLWRvbmF0ZS1sZXZlbD'
            # base64 encoded: stratum+tcp:// and stratum+udp://
            - 'c3RyYXR1bSt0Y3A6Ly'
            - 'N0cmF0dW0rdGNwOi8v'
            - 'zdHJhdHVtK3RjcDovL'
            - 'c3RyYXR1bSt1ZHA6Ly'
            - 'N0cmF0dW0rdWRwOi8v'
            - 'zdHJhdHVtK3VkcDovL'
    condition: selection
falsepositives:
    - Legitimate use of crypto miners
level: high
direct high
Cisco Crypto Commands
Show when private keys are being exported from the device, or when new certificates are installed
status test author Austin Clark id 1f978c6a-4415-47fb-aca5-736a44d7ca3d license Sigma · DRL-1.1
view Sigma YAML
title: Cisco Crypto Commands
id: 1f978c6a-4415-47fb-aca5-736a44d7ca3d
status: test
description: Show when private keys are being exported from the device, or when new certificates are installed
references:
    - https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/a1/sec-a1-cr-book/sec-a1-cr-book_chapter_0111.html
author: Austin Clark
date: 2019-08-12
modified: 2023-01-04
tags:
    - attack.credential-access
    - attack.defense-impairment
    - attack.t1553.004
    - attack.t1552.004
logsource:
    product: cisco
    service: aaa
detection:
    keywords:
        - 'crypto pki export'
        - 'crypto pki import'
        - 'crypto pki trustpoint'
    condition: keywords
falsepositives:
    - Not commonly run by administrators. Also whitelist your known good certificates
level: high
direct high
Monero Crypto Coin Mining Pool Lookup
Detects suspicious DNS queries to Monero mining pools
status stable author Florian Roth (Nextron Systems) id b593fd50-7335-4682-a36c-4edcb68e4641 license Sigma · DRL-1.1
view Sigma YAML
title: Monero Crypto Coin Mining Pool Lookup
id: b593fd50-7335-4682-a36c-4edcb68e4641
status: stable
description: Detects suspicious DNS queries to Monero mining pools
references:
    - https://www.nextron-systems.com/2021/10/24/monero-mining-pool-fqdns/
author: Florian Roth (Nextron Systems)
date: 2021-10-24
tags:
    - attack.impact
    - attack.t1496
    - attack.exfiltration
    - attack.t1567
logsource:
    category: dns
detection:
    selection:
        query|contains:
            - 'pool.minexmr.com'
            - 'fr.minexmr.com'
            - 'de.minexmr.com'
            - 'sg.minexmr.com'
            - 'ca.minexmr.com'
            - 'us-west.minexmr.com'
            - 'pool.supportxmr.com'
            - 'mine.c3pool.com'
            - 'xmr-eu1.nanopool.org'
            - 'xmr-eu2.nanopool.org'
            - 'xmr-us-east1.nanopool.org'
            - 'xmr-us-west1.nanopool.org'
            - 'xmr-asia1.nanopool.org'
            - 'xmr-jp1.nanopool.org'
            - 'xmr-au1.nanopool.org'
            - 'xmr.2miners.com'
            - 'xmr.hashcity.org'
            - 'xmr.f2pool.com'
            - 'xmrpool.eu'
            - 'pool.hashvault.pro'
    condition: selection
falsepositives:
    - Legitimate crypto coin mining
level: high
direct high
Network Communication With Crypto Mining Pool
Detects initiated network connections to crypto mining pools
status stable author Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) id fa5b1358-b040-4403-9868-15f7d9ab6329 license Sigma · DRL-1.1
view Sigma YAML
title: Network Communication With Crypto Mining Pool
id: fa5b1358-b040-4403-9868-15f7d9ab6329
status: stable
description: Detects initiated network connections to crypto mining pools
references:
    - https://www.poolwatch.io/coin/monero
    - https://github.com/stamparm/maltrail/blob/3ea70459b9559134449423c0a7d8b965ac5c40ea/trails/static/suspicious/crypto_mining.txt
    - https://www.virustotal.com/gui/search/behaviour_network%253A*.miningocean.org/files
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2021-10-26
modified: 2024-01-19
tags:
    - attack.impact
    - attack.t1496
logsource:
    category: network_connection
    product: windows
detection:
    selection:
        DestinationHostname:
            - 'alimabi.cn'
            - 'ap.luckpool.net'
            - 'bcn.pool.minergate.com'
            - 'bcn.vip.pool.minergate.com'
            - 'bohemianpool.com'
            - 'ca-aipg.miningocean.org'
            - 'ca-dynex.miningocean.org'
            - 'ca-neurai.miningocean.org'
            - 'ca-qrl.miningocean.org'
            - 'ca-upx.miningocean.org'
            - 'ca-zephyr.miningocean.org'
            - 'ca.minexmr.com'
            - 'ca.monero.herominers.com'
            - 'cbd.monerpool.org'
            - 'cbdv2.monerpool.org'
            - 'cryptmonero.com'
            - 'crypto-pool.fr'
            - 'crypto-pool.info'
            - 'cryptonight-hub.miningpoolhub.com'
            - 'd1pool.ddns.net'
            - 'd5pool.us'
            - 'daili01.monerpool.org'
            - 'de-aipg.miningocean.org'
            - 'de-dynex.miningocean.org'
            - 'de-zephyr.miningocean.org'
            - 'de.minexmr.com'
            - 'dl.nbminer.com'
            - 'donate.graef.in'
            - 'donate.ssl.xmrig.com'
            - 'donate.v2.xmrig.com'
            - 'donate.xmrig.com'
            - 'donate2.graef.in'
            - 'drill.moneroworld.com'
            - 'dwarfpool.com'
            - 'emercoin.com'
            - 'emercoin.net'
            - 'emergate.net'
            - 'ethereumpool.co'
            - 'eu.luckpool.net'
            - 'eu.minerpool.pw'
            - 'fcn-xmr.pool.minergate.com'
            - 'fee.xmrig.com'
            - 'fr-aipg.miningocean.org'
            - 'fr-dynex.miningocean.org'
            - 'fr-neurai.miningocean.org'
            - 'fr-qrl.miningocean.org'
            - 'fr-upx.miningocean.org'
            - 'fr-zephyr.miningocean.org'
            - 'fr.minexmr.com'
            - 'hellominer.com'
            - 'herominers.com'
            - 'hk-aipg.miningocean.org'
            - 'hk-dynex.miningocean.org'
            - 'hk-neurai.miningocean.org'
            - 'hk-qrl.miningocean.org'
            - 'hk-upx.miningocean.org'
            - 'hk-zephyr.miningocean.org'
            - 'huadong1-aeon.ppxxmr.com'
            - 'iwanttoearn.money'
            - 'jw-js1.ppxxmr.com'
            - 'koto-pool.work'
            - 'lhr.nbminer.com'
            - 'lhr3.nbminer.com'
            - 'linux.monerpool.org'
            - 'lokiturtle.herominers.com'
            - 'luckpool.net'
            - 'masari.miner.rocks'
            - 'mine.c3pool.com'
            - 'mine.moneropool.com'
            - 'mine.ppxxmr.com'
            - 'mine.zpool.ca'
            - 'mine1.ppxxmr.com'
            - 'minemonero.gq'
            - 'miner.ppxxmr.com'
            - 'miner.rocks'
            - 'minercircle.com'
            - 'minergate.com'
            - 'minerpool.pw'
            - 'minerrocks.com'
            - 'miners.pro'
            - 'minerxmr.ru'
            - 'minexmr.cn'
            - 'minexmr.com'
            - 'mining-help.ru'
            - 'miningpoolhub.com'
            - 'mixpools.org'
            - 'moner.monerpool.org'
            - 'moner1min.monerpool.org'
            - 'monero-master.crypto-pool.fr'
            - 'monero.crypto-pool.fr'
            - 'monero.hashvault.pro'
            - 'monero.herominers.com'
            - 'monero.lindon-pool.win'
            - 'monero.miners.pro'
            - 'monero.riefly.id'
            - 'monero.us.to'
            - 'monerocean.stream'
            - 'monerogb.com'
            - 'monerohash.com'
            - 'moneroocean.stream'
            - 'moneropool.com'
            - 'moneropool.nl'
            - 'monerorx.com'
            - 'monerpool.org'
            - 'moriaxmr.com'
            - 'mro.pool.minergate.com'
            - 'multipool.us'
            - 'myxmr.pw'
            - 'na.luckpool.net'
            - 'nanopool.org'
            - 'nbminer.com'
            - 'node3.luckpool.net'
            - 'noobxmr.com'
            - 'pangolinminer.comgandalph3000.com'
            - 'pool.4i7i.com'
            - 'pool.armornetwork.org'
            - 'pool.cortins.tk'
            - 'pool.gntl.co.uk'
            - 'pool.hashvault.pro'
            - 'pool.minergate.com'
            - 'pool.minexmr.com'
            - 'pool.monero.hashvault.pro'
            - 'pool.ppxxmr.com'
            - 'pool.somec.cc'
            - 'pool.support'
            - 'pool.supportxmr.com'
            - 'pool.usa-138.com'
            - 'pool.xmr.pt'
            - 'pool.xmrfast.com'
            - 'pool2.armornetwork.org'
            - 'poolchange.ppxxmr.com'
            - 'pooldd.com'
            - 'poolmining.org'
            - 'poolto.be'
            - 'ppxvip1.ppxxmr.com'
            - 'ppxxmr.com'
            - 'prohash.net'
            - 'r.twotouchauthentication.online'
            - 'randomx.xmrig.com'
            - 'ratchetmining.com'
            - 'seed.emercoin.com'
            - 'seed.emercoin.net'
            - 'seed.emergate.net'
            - 'seed1.joulecoin.org'
            - 'seed2.joulecoin.org'
            - 'seed3.joulecoin.org'
            - 'seed4.joulecoin.org'
            - 'seed5.joulecoin.org'
            - 'seed6.joulecoin.org'
            - 'seed7.joulecoin.org'
            - 'seed8.joulecoin.org'
            - 'sg-aipg.miningocean.org'
            - 'sg-dynex.miningocean.org'
            - 'sg-neurai.miningocean.org'
            - 'sg-qrl.miningocean.org'
            - 'sg-upx.miningocean.org'
            - 'sg-zephyr.miningocean.org'
            - 'sg.minexmr.com'
            - 'sheepman.mine.bz'
            - 'siamining.com'
            - 'sumokoin.minerrocks.com'
            - 'supportxmr.com'
            - 'suprnova.cc'
            - 'teracycle.net'
            - 'trtl.cnpool.cc'
            - 'trtl.pool.mine2gether.com'
            - 'turtle.miner.rocks'
            - 'us-aipg.miningocean.org'
            - 'us-dynex.miningocean.org'
            - 'us-neurai.miningocean.org'
            - 'us-west.minexmr.com'
            - 'us-zephyr.miningocean.org'
            - 'usxmrpool.com'
            - 'viaxmr.com'
            - 'webservicepag.webhop.net'
            - 'xiazai.monerpool.org'
            - 'xiazai1.monerpool.org'
            - 'xmc.pool.minergate.com'
            - 'xmo.pool.minergate.com'
            - 'xmr-asia1.nanopool.org'
            - 'xmr-au1.nanopool.org'
            - 'xmr-eu1.nanopool.org'
            - 'xmr-eu2.nanopool.org'
            - 'xmr-jp1.nanopool.org'
            - 'xmr-us-east1.nanopool.org'
            - 'xmr-us-west1.nanopool.org'
            - 'xmr-us.suprnova.cc'
            - 'xmr-usa.dwarfpool.com'
            - 'xmr.2miners.com'
            - 'xmr.5b6b7b.ru'
            - 'xmr.alimabi.cn'
            - 'xmr.bohemianpool.com'
            - 'xmr.crypto-pool.fr'
            - 'xmr.crypto-pool.info'
            - 'xmr.f2pool.com'
            - 'xmr.hashcity.org'
            - 'xmr.hex7e4.ru'
            - 'xmr.ip28.net'
            - 'xmr.monerpool.org'
            - 'xmr.mypool.online'
            - 'xmr.nanopool.org'
            - 'xmr.pool.gntl.co.uk'
            - 'xmr.pool.minergate.com'
            - 'xmr.poolto.be'
            - 'xmr.ppxxmr.com'
            - 'xmr.prohash.net'
            - 'xmr.simka.pw'
            - 'xmr.somec.cc'
            - 'xmr.suprnova.cc'
            - 'xmr.usa-138.com'
            - 'xmr.vip.pool.minergate.com'
            - 'xmr1min.monerpool.org'
            - 'xmrf.520fjh.org'
            - 'xmrf.fjhan.club'
            - 'xmrfast.com'
            - 'xmrigcc.graef.in'
            - 'xmrminer.cc'
            - 'xmrpool.de'
            - 'xmrpool.eu'
            - 'xmrpool.me'
            - 'xmrpool.net'
            - 'xmrpool.xyz'
            - 'xx11m.monerpool.org'
            - 'xx11mv2.monerpool.org'
            - 'xxx.hex7e4.ru'
            - 'zarabotaibitok.ru'
            - 'zer0day.ru'
    condition: selection
falsepositives:
    - Unlikely
level: high
direct high
Potential Crypto Mining Activity
Detects command line parameters or strings often used by crypto miners
status stable author Florian Roth (Nextron Systems) id 66c3b204-9f88-4d0a-a7f7-8a57d521ca55 license Sigma · DRL-1.1
view Sigma YAML
title: Potential Crypto Mining Activity
id: 66c3b204-9f88-4d0a-a7f7-8a57d521ca55
status: stable
description: Detects command line parameters or strings often used by crypto miners
references:
    - https://www.poolwatch.io/coin/monero
author: Florian Roth (Nextron Systems)
date: 2021-10-26
modified: 2023-02-13
tags:
    - attack.impact
    - attack.t1496
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains:
            - ' --cpu-priority='
            - '--donate-level=0'
            - ' -o pool.'
            - ' --nicehash'
            - ' --algo=rx/0 '
            - 'stratum+tcp://'
            - 'stratum+udp://'
            # base64 encoded: --donate-level=
            - 'LS1kb25hdGUtbGV2ZWw9'
            - '0tZG9uYXRlLWxldmVsP'
            - 'tLWRvbmF0ZS1sZXZlbD'
            # base64 encoded: stratum+tcp:// and stratum+udp://
            - 'c3RyYXR1bSt0Y3A6Ly'
            - 'N0cmF0dW0rdGNwOi8v'
            - 'zdHJhdHVtK3RjcDovL'
            - 'c3RyYXR1bSt1ZHA6Ly'
            - 'N0cmF0dW0rdWRwOi8v'
            - 'zdHJhdHVtK3VkcDovL'
    filter:
        CommandLine|contains:
            - ' pool.c '
            - ' pool.o '
            - 'gcc -'
    condition: selection and not filter
falsepositives:
    - Legitimate use of crypto miners
    - Some build frameworks
level: high
direct high
Crypto Miner User Agent
Detects suspicious user agent strings used by crypto miners in proxy logs
status test author Florian Roth (Nextron Systems) id fa935401-513b-467b-81f4-f9e77aa0dd78 license Sigma · DRL-1.1
view Sigma YAML
title: Crypto Miner User Agent
id: fa935401-513b-467b-81f4-f9e77aa0dd78
status: test
description: Detects suspicious user agent strings used by crypto miners in proxy logs
references:
    - https://github.com/xmrig/xmrig/blob/da22b3e6c45825f3ac1f208255126cb8585cd4fc/src/base/kernel/Platform_win.cpp#L65
    - https://github.com/xmrig/xmrig/blob/427b6516e0550200c17ca28675118f0fffcc323f/src/version.h
author: Florian Roth (Nextron Systems)
date: 2019-10-21
modified: 2021-11-27
tags:
    - attack.command-and-control
    - attack.t1071.001
logsource:
    category: proxy
detection:
    selection:
        c-useragent|startswith:
        # XMRig
            - 'XMRig '
        # CCMiner
            - 'ccminer'
    condition: selection
falsepositives:
    - Unknown
level: high
direct medium
Access To Crypto Currency Wallets By Uncommon Applications
Detects file access requests to crypto currency files by uncommon processes. Could indicate potential attempt of crypto currency wallet stealing.
status test author X__Junior (Nextron Systems) id f41b0311-44f9-44f0-816d-dd45e39d4bc8 license Sigma · DRL-1.1
view Sigma YAML
title: Access To Crypto Currency Wallets By Uncommon Applications
id: f41b0311-44f9-44f0-816d-dd45e39d4bc8
status: test
description: |
    Detects file access requests to crypto currency files by uncommon processes.
    Could indicate potential attempt of crypto currency wallet stealing.
references:
    - Internal Research
author: X__Junior (Nextron Systems)
date: 2024-07-29
tags:
    - attack.t1003
    - attack.credential-access
logsource:
    category: file_access
    product: windows
    definition: 'Requirements: Microsoft-Windows-Kernel-File ETW provider'
detection:
    selection:
        - FileName|contains:
              - '\AppData\Roaming\Ethereum\keystore\'
              - '\AppData\Roaming\EthereumClassic\keystore\'
              - '\AppData\Roaming\monero\wallets\'
        - FileName|endswith:
              - '\AppData\Roaming\Bitcoin\wallet.dat'
              - '\AppData\Roaming\BitcoinABC\wallet.dat'
              - '\AppData\Roaming\BitcoinSV\wallet.dat'
              - '\AppData\Roaming\DashCore\wallet.dat'
              - '\AppData\Roaming\DogeCoin\wallet.dat'
              - '\AppData\Roaming\Litecoin\wallet.dat'
              - '\AppData\Roaming\Ripple\wallet.dat'
              - '\AppData\Roaming\Zcash\wallet.dat'
    filter_main_system:
        Image: System
    filter_main_generic:
        # This filter is added to avoid large amount of FP with 3rd party software. You should remove this in favour of specific filter per-application
        Image|startswith:
            - 'C:\Program Files (x86)\'
            - 'C:\Program Files\'
            - 'C:\Windows\system32\'
            - 'C:\Windows\SysWOW64\'
    filter_optional_defender:
        Image|startswith: 'C:\ProgramData\Microsoft\Windows Defender\'
        Image|endswith:
            - '\MpCopyAccelerator.exe'
            - '\MsMpEng.exe'
    condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
    - Antivirus, Anti-Spyware, Anti-Malware Software
    - Backup software
    - Legitimate software installed on partitions other than "C:\"
    - Searching software such as "everything.exe"
level: medium
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