Crowdstrike Cryptomining Tools


Description

Detects execution of cryptocurrency mining tools like XMRig, CGMiner, and ETHMiner that hijack computing resources for unauthorized financial gain. These tools consume significant CPU/GPU resources, degrade system performance, and increase costs. Unauthorized deployment typically indicates compromise through malware, supply chain attacks, or exploitation of vulnerable services.

Query · python

from panther_crowdstrike_fdr_helpers import crowdstrike_detection_alert_context

CRYPTOCURRENCY_MINING_TOOLS = {
    "xmrig.exe",
    "cgminer.exe",
    "bfgminer.exe",
    "ethminer.exe",
    "minergate-cli.exe",
    "nicehashminer.exe",
    "sgminer.exe",
    "cpuminer.exe",
    "cudaminer.exe",
    "nheqminer.exe",
    "claymore.exe",
    "xmr-stak.exe",
    "ccminer.exe",
    "zecminer64.exe",
    "ewbf.exe",
    "nanominer.exe",
    "phoenixminer.exe",
    "t-rex.exe",
    "gminer.exe",
    "lolminer.exe",
    "teamredminer.exe",
    "nbminer.exe",
    "daggerhashimoto.exe",
}


def rule(event):
    if event.get("fdr_event_type", "") == "ProcessRollup2":
        if event.get("event_platform", "") == "Win":
            process_name = (
                event.deep_get("event", "ImageFileName", default="").lower().split("\\")[-1]
            )
            return process_name in CRYPTOCURRENCY_MINING_TOOLS
    return False


def title(event):
    tool = (
        event.deep_get("event", "ImageFileName", default="<TOOL_NOT_FOUND>").lower().split("\\")[-1]
    )
    host = event.get("ComputerName") or event.get("aid", "<AID_NOT_FOUND>")
    return f"Crowdstrike: Cryptocurrency mining tool [{tool}] detected on host [{host}]"


def alert_context(event):
    return crowdstrike_detection_alert_context(event)

Analyst notes

  1. Review the process tree in CrowdStrike for event:ParentBaseFileName and event:SourceProcessId to identify what launched the cryptomining tool and determine the initial access vector
  2. Query CrowdStrike DNS logs and network telemetry from the affected host (aid and aip) in the 24 hours around this event to identify mining pool domains contacted (e.g., xmr-pool.com, nanopool.org, ethermine.org)
  3. Search CrowdStrike for the event:SHA256HashData across all endpoints to identify other hosts running the same cryptomining tool and assess the scope of the cryptojacking campaign
Raw source Crowdstrike Cryptomining Tools · Panther Python
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Published by panther-labs/panther-analysis ↗, licensed under Apache 2.0 ↗. Reproduced here unmodified.
AnalysisType: rule
Description: >
  Detects execution of cryptocurrency mining tools like XMRig, CGMiner, and ETHMiner that hijack computing resources for unauthorized financial gain. These tools consume significant CPU/GPU resources, degrade system performance, and increase costs. Unauthorized deployment typically indicates compromise through malware, supply chain attacks, or exploitation of vulnerable services.
DisplayName: "Crowdstrike Cryptomining Tools"
Enabled: true
Filename: crowdstrike_cryptomining_tools.py
Reference: https://www.crowdstrike.com/cybersecurity-101/cryptojacking/
Severity: Critical
Tags:
  - CrowdStrike
  - Windows
  - Resource Hijacking
  - Cryptojacking
  - Cryptomining
  - Impact
  - Endpoint Detection
  - Performance Degradation
Runbook: |
  1. Review the process tree in CrowdStrike for event:ParentBaseFileName and event:SourceProcessId to identify what launched the cryptomining tool and determine the initial access vector
  2. Query CrowdStrike DNS logs and network telemetry from the affected host (aid and aip) in the 24 hours around this event to identify mining pool domains contacted (e.g., xmr-pool.com, nanopool.org, ethermine.org)
  3. Search CrowdStrike for the event:SHA256HashData across all endpoints to identify other hosts running the same cryptomining tool and assess the scope of the cryptojacking campaign
Reports:
  MITRE ATT&CK:
    - TA0040:T1496
Tests:
  - ExpectedResult: true
    Log:
      aid: 1234567890abcdefghijklmnop9876
      aip: 11.10.9.8
      cid: abcdefghijklmnop123467890
      configbuild: 1007.3.0016606.11
      configstatehash: "3799024366"
      entitlements: "15"
      event:
        AuthenticationId: "293628"
        AuthenticodeHashData: 5540c470218d209b7c3eca3d12e190580814d566
        CommandLine: C:\Windows\System32\ethminer.exe
        ConfigBuild: 1007.3.0016606.11
        ConfigStateHash: "3799024366"
        EffectiveTransmissionClass: "2"
        Entitlements: "15"
        ImageFileName: \Device\HarddiskVolume2\Windows\System32\ethminer.exe
        ImageSubsystem: "3"
        IntegrityLevel: "12288"
        MD5HashData: 5fd22b915c232378e567160d641cc9f2
        ParentAuthenticationId: "293628"
        ParentBaseFileName: pwsh.exe
        ParentProcessId: "4370948876"
        ProcessCreateFlags: "0"
        ProcessEndTime: ""
        ProcessParameterFlags: "24577"
        ProcessStartTime: "1682106752.006"
        ProcessSxsFlags: "64"
        RawProcessId: "1468"
        SHA1HashData: "0000000000000000000000000000000000000000"
        SHA256HashData: 488e74e2026d03f21b33f470c23b3de2f466643186c2e06ae7b4883cc2e59377
        SessionId: "2"
        SignInfoFlags: "8683538"
        SourceProcessId: "4370948876"
        SourceThreadId: "6364981533"
        Tags: 25, 27, 40, 151, 874, 924, 12094627905582, 12094627906234, 237494511599633
        TargetProcessId: "4390327988"
        TokenType: "1"
        TreeId: "4295752857"
        UserSid: S-1-5-21-239183934-720705223-383019856-500
        aid: 1234567890abcdefghijklmnop9876
        aip: 11.10.9.8
        cid: abcdefghijklmnop123467890
        event_platform: Win
        event_simpleName: ProcessRollup2
        id: 081d64d7-17fb-40c0-8767-48ff1e2ee2dd
        name: ProcessRollup2V19
        timestamp: "1682106752722"
      event_platform: Win
      event_simplename: ProcessRollup2
      fdr_event_type: ProcessRollup2
      id: 081d64d7-17fb-40c0-8767-48ff1e2ee2dd
      name: ProcessRollup2V19
      p_any_ip_addresses:
        - 11.10.9.8
      p_any_md5_hashes:
        - 5fd22b915c232378e567160d641cc9f2
        - 1234567890abcdefghijklmnop9876
        - abcdefghijklmnop123467890
      p_any_sha1_hashes:
        - "0000000000000000000000000000000000000000"
      p_any_sha256_hashes:
        - 488e74e2026d03f21b33f470c23b3de2f466643186c2e06ae7b4883cc2e59377
      p_any_trace_ids:
        - "4295752857"
        - 1234567890abcdefghijklmnop9876
        - abcdefghijklmnop123467890
      p_event_time: "2023-04-21 19:52:32.722"
      p_log_type: Crowdstrike.FDREvent
      p_parse_time: "2023-04-21 20:05:52.94"
      p_row_id: 7ac82dbb43a99bfec196bdda178c8101
      p_schema_version: 0
      p_source_id: 1f33f64c-124d-413c-a9e3-d51ccedd8e77
      p_source_label: Crowdstrike-FDR-Dev
      timestamp: "2023-04-21 19:52:32.722"
      treeid: "4295752857"
    Name: Crypto tool
  - ExpectedResult: false
    Log:
      aid: 1234567890abcdefghijklmnop9876
      aip: 11.10.9.8
      cid: abcdefghijklmnop123467890
      configbuild: 1007.3.0016606.11
      configstatehash: "3799024366"
      entitlements: "15"
      event:
        AuthenticationId: "293628"
        AuthenticodeHashData: 5540c470218d209b7c3eca3d12e190580814d566
        CommandLine: '"C:\Windows\System32\at.exe" at 09:00 /interactive /every:m,t,w,th,f,s,su'
        ConfigBuild: 1007.3.0016606.11
        ConfigStateHash: "3799024366"
        EffectiveTransmissionClass: "2"
        Entitlements: "15"
        ImageFileName: \Device\HarddiskVolume2\Windows\System32\at.exe
        ImageSubsystem: "3"
        IntegrityLevel: "12288"
        MD5HashData: 5fd22b915c232378e567160d641cc9f2
        ParentAuthenticationId: "293628"
        ParentBaseFileName: pwsh.exe
        ParentProcessId: "4370948876"
        ProcessCreateFlags: "0"
        ProcessEndTime: ""
        ProcessParameterFlags: "24577"
        ProcessStartTime: "1682106752.006"
        ProcessSxsFlags: "64"
        RawProcessId: "1468"
        SHA1HashData: "0000000000000000000000000000000000000000"
        SHA256HashData: 488e74e2026d03f21b33f470c23b3de2f466643186c2e06ae7b4883cc2e59377
        SessionId: "2"
        SignInfoFlags: "8683538"
        SourceProcessId: "4370948876"
        SourceThreadId: "6364981533"
        Tags: 25, 27, 40, 151, 874, 924, 12094627905582, 12094627906234, 237494511599633
        TargetProcessId: "4390327988"
        TokenType: "1"
        TreeId: "4295752857"
        UserSid: S-1-5-21-239183934-720705223-383019856-500
        aid: 1234567890abcdefghijklmnop9876
        aip: 11.10.9.8
        cid: abcdefghijklmnop123467890
        event_platform: Win
        event_simpleName: ProcessRollup2
        id: 081d64d7-17fb-40c0-8767-48ff1e2ee2dd
        name: ProcessRollup2V19
        timestamp: "1682106752722"
      event_platform: Win
      event_simplename: ProcessRollup2
      fdr_event_type: ProcessRollup2
      id: 081d64d7-17fb-40c0-8767-48ff1e2ee2dd
      name: ProcessRollup2V19
      p_any_ip_addresses:
        - 11.10.9.8
      p_any_md5_hashes:
        - 5fd22b915c232378e567160d641cc9f2
        - 1234567890abcdefghijklmnop9876
        - abcdefghijklmnop123467890
      p_any_sha1_hashes:
        - "0000000000000000000000000000000000000000"
      p_any_sha256_hashes:
        - 488e74e2026d03f21b33f470c23b3de2f466643186c2e06ae7b4883cc2e59377
      p_any_trace_ids:
        - "4295752857"
        - 1234567890abcdefghijklmnop9876
        - abcdefghijklmnop123467890
      p_event_time: "2023-04-21 19:52:32.722"
      p_log_type: Crowdstrike.FDREvent
      p_parse_time: "2023-04-21 20:05:52.94"
      p_row_id: 7ac82dbb43a99bfec196bdda178c8101
      p_schema_version: 0
      p_source_id: 1f33f64c-124d-413c-a9e3-d51ccedd8e77
      p_source_label: Crowdstrike-FDR-Dev
      timestamp: "2023-04-21 19:52:32.722"
      treeid: "4295752857"
    Name: Other
DedupPeriodMinutes: 60
LogTypes:
  - Crowdstrike.FDREvent
RuleID: "Crowdstrike.Cryptomining.Tools"
Threshold: 1


# ------ paired body: crowdstrike_cryptomining_tools.py ------

from panther_crowdstrike_fdr_helpers import crowdstrike_detection_alert_context

CRYPTOCURRENCY_MINING_TOOLS = {
    "xmrig.exe",
    "cgminer.exe",
    "bfgminer.exe",
    "ethminer.exe",
    "minergate-cli.exe",
    "nicehashminer.exe",
    "sgminer.exe",
    "cpuminer.exe",
    "cudaminer.exe",
    "nheqminer.exe",
    "claymore.exe",
    "xmr-stak.exe",
    "ccminer.exe",
    "zecminer64.exe",
    "ewbf.exe",
    "nanominer.exe",
    "phoenixminer.exe",
    "t-rex.exe",
    "gminer.exe",
    "lolminer.exe",
    "teamredminer.exe",
    "nbminer.exe",
    "daggerhashimoto.exe",
}


def rule(event):
    if event.get("fdr_event_type", "") == "ProcessRollup2":
        if event.get("event_platform", "") == "Win":
            process_name = (
                event.deep_get("event", "ImageFileName", default="").lower().split("\\")[-1]
            )
            return process_name in CRYPTOCURRENCY_MINING_TOOLS
    return False


def title(event):
    tool = (
        event.deep_get("event", "ImageFileName", default="<TOOL_NOT_FOUND>").lower().split("\\")[-1]
    )
    host = event.get("ComputerName") or event.get("aid", "<AID_NOT_FOUND>")
    return f"Crowdstrike: Cryptocurrency mining tool [{tool}] detected on host [{host}]"


def alert_context(event):
    return crowdstrike_detection_alert_context(event)

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