{
  "author": "_soteria-rules-edr-926e2197-189b-4d89-9675-c8993933dc9a[bulk][segment]",
  "cat": "00326-NIX-Host_Based_Firewall_Disabled",
  "detect": {
    "event": {
      "COMMAND_LINE": "/usr/sbin/iptables -F ufw-caps-testdoiqqv1d",
      "FILE_PATH": "/usr/sbin/xtables-nft-multi",
      "HASH": "a1610dd70bb5ab04180671280df65b0077b680b627c0b6c51480b327732a762d",
      "PARENT_PROCESS_ID": 114475,
      "PROCESS_ID": 114480,
      "USER_ID": 0,
      "USER_NAME": "root"
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "ffd1e206-42b9-4002-82d7-e48f16a90850",
      "event_time": 1774846425434,
      "event_type": "NEW_PROCESS",
      "ext_ip": "67.60.122.240",
      "hostname": "fusionserver",
      "iid": "47501359-645e-4049-906e-e6195da7afcf",
      "int_ip": "192.168.1.6",
      "latency": 7745,
      "moduleid": 2,
      "oid": "ad19afae-3759-4207-b06e-8648b225c455",
      "plat": 536870912,
      "sid": "04e68799-92b7-411a-9abf-293a59ff94df",
      "tags": [
        "fusion-soc-case",
        "fusion-soc-pulled",
        "fusion-soc-triage"
      ],
      "this": "22db17c185d5c78636a1793c69ca01da"
    }
  },
  "detect_id": "9d492270-741a-4bb1-aa12-a68a69ca01e1",
  "detect_mtd": {
    "description": "Iptables, Firewalld, and UFW are builtin firewall implementations in Linux distributions. Adversaries may disable the firewall in order to bypass controls of network use.",
    "falsepositives": [
      "System Administrators may infrequently disable or stop the firewall to troubleshoot issues."
    ],
    "references": [
      "https://attack.mitre.org/techniques/T1562/004/",
      "https://threatpost.com/six-malicious-linux-shell-scripts-how-to-stop-them/168127/",
      "https://www.cyberciti.biz/faq/linux-howto-disable-remove-firewall/"
    ],
    "tags": [
      "attack.t1562",
      "attack.t1562.004"
    ]
  },
  "gen_time": 1774846433179,
  "link": "https://app.limacharlie.io/orgs/ad19afae-3759-4207-b06e-8648b225c455/sensors/04e68799-92b7-411a-9abf-293a59ff94df/timeline?time=1774846425\u0026selected=22db17c185d5c78636a1793c69ca01da",
  "namespace": "general",
  "priority": 2,
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "ffd1e206-42b9-4002-82d7-e48f16a90850",
    "event_time": 1774846425434,
    "event_type": "NEW_PROCESS",
    "ext_ip": "67.60.122.240",
    "hostname": "fusionserver",
    "iid": "47501359-645e-4049-906e-e6195da7afcf",
    "int_ip": "192.168.1.6",
    "latency": 7745,
    "moduleid": 2,
    "oid": "ad19afae-3759-4207-b06e-8648b225c455",
    "plat": 536870912,
    "sid": "04e68799-92b7-411a-9abf-293a59ff94df",
    "tags": [
      "fusion-soc-case",
      "fusion-soc-pulled",
      "fusion-soc-triage"
    ],
    "this": "22db17c185d5c78636a1793c69ca01da"
  },
  "rule_tags": [
    "attack.t1562.004",
    "attack.t1562",
    "ext:soteria-rules-edr"
  ],
  "source": "ad19afae-3759-4207-b06e-8648b225c455.47501359-645e-4049-906e-e6195da7afcf.04e68799-92b7-411a-9abf-293a59ff94df.20000000.2",
  "source_rule": "service.NIX-Host_Based_Firewall_Disabled",
  "ts": 1774846433000
}

{
  "virustotal": {
    "malicious": false,
    "provider": "virustotal",
    "reputation": 0,
    "stats": {
      "confirmed-timeout": 0,
      "failure": 0,
      "harmless": 0,
      "malicious": 0,
      "suspicious": 0,
      "timeout": 0,
      "type-unsupported": 11,
      "undetected": 65
    }
  }
}

{
  "_model_name": "dgx-122b",
  "_primary_summary": "### \ud83e\udde0 dgx-122b Analysis (Primary)\n**Verdict:** false_positive | **Confidence:** 0.95\nThe process executes a legitimate Linux system utility from the expected system path. Historical data indicates a 100% false positive rate for this specific rule variant.\n\n**IOC Analysis:** Binary /usr/sbin/xtables-nft-multi is a standard component of the iptables/nftables suite located in the expected system directory. The command flushes a specific UFW-related chain, consistent with automated maintenance rather than malicious activity.",
  "confidence": 0.95,
  "false_positive_reason": "Historical statistics show 8 False Positives and 0 True Positives for this exact pattern. The binary is a legitimate system utility running with expected privileges.",
  "investigation_questions": [
    "Is this execution triggered by a known management tool or script?",
    "Does the host have UFW installed and managed by this process?"
  ],
  "ioc_analysis": "Binary /usr/sbin/xtables-nft-multi is a standard component of the iptables/nftables suite located in the expected system directory. The command flushes a specific UFW-related chain, consistent with automated maintenance rather than malicious activity.",
  "iocs_extracted": [
    "/usr/sbin/xtables-nft-multi",
    "a1610dd70bb5ab04180671280df65b0077b680b627c0b6c51480b327732a762d"
  ],
  "mitre_techniques": [],
  "recommended_actions": [
    "Suppress this rule for this specific binary/chain pattern",
    "Verify if this is part of a scheduled maintenance task"
  ],
  "risk_score": 10,
  "severity": "low",
  "summary": "The process executes a legitimate Linux system utility from the expected system path. Historical data indicates a 100% false positive rate for this specific rule variant.",
  "verdict": "false_positive"
}