Building Ransomware Playbook With Cisa Framework

                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      "You" (or "Your") shall mean an individual or Legal Entity
      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,
      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the
      editorial revisions, annotations, elaborations, or other modifications
      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions
      to that Work or Derivative Works thereof, that is intentionally
      submitted to the Licensor for inclusion in the Work by the copyright owner
      or by an individual or Legal Entity authorized to submit on behalf of
      the copyright owner. For the purposes of this definition, "submitted"
      means any form of electronic, verbal, or written communication sent
      to the Licensor or its representatives, including but not limited to
      communication on electronic mailing lists, source code control systems,
      and issue tracking systems that are managed by, or on behalf of, the
      Licensor for the purpose of discussing and improving the Work, but
      excluding communication that is conspicuously marked or otherwise
      designated in writing by the copyright owner as "Not a Contribution."

      "Contributor" shall mean Licensor and any individual or Legal Entity
      on behalf of whom a Contribution has been received by the Licensor and
      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      copyright license to reproduce, prepare Derivative Works of,
      publicly display, publicly perform, sublicense, and distribute the
      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable
      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
      cross-claim or counterclaim in a lawsuit) alleging that the Work
      or a Contribution incorporated within the Work constitutes direct
      or contributory patent infringement, then any patent licenses
      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without
      modifications, and in Source or Object form, provided that You
      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works
          that You distribute, all copyright, patent, trademark, and
          attribution notices from the Source form of the Work,
          excluding those notices that do not pertain to any part of
          the Derivative Works; and

      (d) If the Work includes a "NOTICE" text file as part of its
          distribution, then any Derivative Works that You distribute must
          include a readable copy of the attribution notices contained
          within such NOTICE file, excluding any notices that do not
          pertain to any part of the Derivative Works, in at least one
          of the following places: within a NOTICE text file distributed
          as part of the Derivative Works; within the Source form or
          documentation, if provided along with the Derivative Works; or,
          within a display generated by the Derivative Works, if and
          wherever such third-party notices normally appear. The contents
          of the NOTICE file are for informational purposes only and
          do not modify the License. You may add Your own attribution
          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions
      for use, reproduction, or distribution of Your modifications, or
      for any such Derivative Works as a whole, provided Your use,
      reproduction, and distribution of the Work otherwise complies with
      the conditions stated in this License.

   5. Submission of Contributions. Unless You explicitly state otherwise,
      any Contribution intentionally submitted for inclusion in the Work
      by You to the Licensor shall be under the terms and conditions of
      this License, without any additional terms or conditions.
      Notwithstanding the above, nothing herein shall supersede or modify
      the terms of any separate license agreement you may have executed
      with Licensor regarding such Contributions.

   6. Trademarks. This License does not grant permission to use the trade
      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each
      Contributor provides its Contributions) on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
      implied, including, without limitation, any warranties or conditions
      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
      PARTICULAR PURPOSE. You are solely responsible for determining the
      appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be
      liable to You for damages, including any direct, indirect, special,
      incidental, or consequential damages of any character arising as a
      result of this License or out of the use or inability to use the
      Work (including but not limited to damages for loss of goodwill,
      work stoppage, computer failure or malfunction, or any and all
      other commercial damages or losses), even if such Contributor
      has been advised of the possibility of such damages.

   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only
      on Your own behalf and on Your sole responsibility, not on behalf
      of any other Contributor, and only if You agree to indemnify,
      defend, and hold each Contributor harmless for any liability
      incurred by, or claims asserted against, such Contributor by reason
      of your accepting any such warranty or additional liability.

   END OF TERMS AND CONDITIONS

   APPENDIX: How to apply the Apache License to your work.

      To apply the Apache License to your work, attach the following
      boilerplate notice, with the fields enclosed by brackets "[]"
      replaced with your own identifying information. (Don't include
      the brackets!)  The text should be enclosed in the appropriate
      comment syntax for the file format. Please do not remove or change
      the license header comment from a contributed file except when
      necessary.

   Copyright 2026 mukul975

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

#!/usr/bin/env python3
"""CISA ransomware playbook builder and compliance checker agent.

Generates a structured ransomware incident response playbook aligned with the
CISA StopRansomware Guide. Assesses organizational readiness against CISA
checklist items and produces gap analysis reports.
"""

import json
import sys
from datetime import datetime

CISA_PREPARATION_CHECKLIST = {
    "PREP-01": {
        "control": "Offline encrypted backups",
        "description": "Maintain offline, encrypted backups of critical data tested quarterly",
        "cisa_ref": "StopRansomware Guide Part 1, Section 1",
        "priority": "Critical",
    },
    "PREP-02": {
        "control": "Incident response plan",
        "description": "Create, maintain, and exercise a cyber incident response plan with ransomware annex",
        "cisa_ref": "StopRansomware Guide Part 1, Section 2",
        "priority": "Critical",
    },
    "PREP-03": {
        "control": "Network segmentation",
        "description": "Implement network segmentation between IT, OT, and critical asset zones",
        "cisa_ref": "StopRansomware Guide Part 1, Section 3",
        "priority": "High",
    },
    "PREP-04": {
        "control": "Multi-factor authentication",
        "description": "Enable MFA on all remote access, privileged accounts, and email",
        "cisa_ref": "StopRansomware Guide Part 1, Section 4",
        "priority": "Critical",
    },
    "PREP-05": {
        "control": "Endpoint detection and response",
        "description": "Deploy EDR on all endpoints with automated response capabilities",
        "cisa_ref": "StopRansomware Guide Part 1, Section 5",
        "priority": "High",
    },
    "PREP-06": {
        "control": "RDP restrictions",
        "description": "Disable or restrict RDP; require VPN with MFA for remote access",
        "cisa_ref": "StopRansomware Guide Part 1, Section 6",
        "priority": "Critical",
    },
    "PREP-07": {
        "control": "Patch management",
        "description": "Apply patches within 48 hours for internet-facing systems, 30 days for internal",
        "cisa_ref": "StopRansomware Guide Part 1, Section 7",
        "priority": "High",
    },
    "PREP-08": {
        "control": "Email security",
        "description": "Configure email filtering, disable macros by default, implement DMARC/DKIM/SPF",
        "cisa_ref": "StopRansomware Guide Part 1, Section 8",
        "priority": "High",
    },
    "PREP-09": {
        "control": "Application allowlisting",
        "description": "Implement AppLocker or WDAC to restrict unauthorized executables",
        "cisa_ref": "StopRansomware Guide Part 1, Section 9",
        "priority": "Medium",
    },
    "PREP-10": {
        "control": "Security awareness training",
        "description": "Conduct regular phishing simulation and security awareness training",
        "cisa_ref": "StopRansomware Guide Part 1, Section 10",
        "priority": "Medium",
    },
}

RESPONSE_PHASES = {
    "detection": {
        "name": "Detection and Analysis",
        "steps": [
            "Identify initial indicators (mass file renames, ransom notes, EDR alerts)",
            "Take system images and memory captures of affected devices",
            "Identify patient zero and initial access vector",
            "Determine ransomware family using ID Ransomware or sample analysis",
            "Assess encryption scope: systems, shares, data classification impacted",
            "Check for data exfiltration indicators (double extortion)",
            "Notify incident response team and escalate per IRP",
        ],
        "time_target": "0-2 hours",
    },
    "containment": {
        "name": "Containment",
        "steps": [
            "Isolate affected systems (disable NIC, VLAN quarantine, firewall block)",
            "If unable to disconnect, power down affected systems immediately",
            "Disable shared drives and mapped network shares",
            "Reset credentials for compromised and service accounts",
            "Block known IOCs at firewall and proxy (C2 domains, IPs, hashes)",
            "Preserve forensic evidence (do not wipe or rebuild yet)",
            "Engage legal counsel for breach notification assessment",
            "Activate out-of-band communication channel for response team",
        ],
        "time_target": "1-4 hours",
    },
    "eradication": {
        "name": "Eradication and Recovery",
        "steps": [
            "Rebuild affected systems from known-clean images",
            "Restore data from verified offline backups",
            "Reset ALL domain passwords including krbtgt (twice, 12h apart)",
            "Scan restored systems with updated AV and EDR before reconnection",
            "Re-enable services in priority order (DC/DNS first, then business apps)",
            "Monitor restored systems for 72 hours for reinfection signals",
            "Validate data integrity of restored files against known checksums",
        ],
        "time_target": "1-7 days",
    },
    "post_incident": {
        "name": "Post-Incident Activity",
        "steps": [
            "Conduct root cause analysis with full incident timeline",
            "Document lessons learned with all response team stakeholders",
            "Update incident response playbook based on findings",
            "Implement new controls to address identified gaps",
            "File regulatory notifications within required timeframes",
            "Report to CISA at report.cisa.gov and FBI at ic3.gov",
            "Schedule follow-up review in 30, 60, and 90 days",
        ],
        "time_target": "1-4 weeks",
    },
}


def assess_readiness(current_controls):
    """Assess ransomware readiness against CISA checklist."""
    results = {"total_controls": len(CISA_PREPARATION_CHECKLIST), "implemented": 0,
               "gaps": [], "score": 0.0, "details": []}

    for ctrl_id, ctrl in CISA_PREPARATION_CHECKLIST.items():
        status = current_controls.get(ctrl_id, "not_implemented")
        is_implemented = status in ("implemented", "partial")
        if is_implemented:
            results["implemented"] += 1
        else:
            results["gaps"].append({
                "id": ctrl_id,
                "control": ctrl["control"],
                "priority": ctrl["priority"],
                "cisa_ref": ctrl["cisa_ref"],
            })
        results["details"].append({
            "id": ctrl_id,
            "control": ctrl["control"],
            "status": status,
            "priority": ctrl["priority"],
        })

    results["score"] = round(
        (results["implemented"] / results["total_controls"]) * 100, 1
    )
    return results


def generate_playbook(org_name="Organization"):
    """Generate a full ransomware response playbook."""
    playbook = {
        "title": f"Ransomware Incident Response Playbook - {org_name}",
        "framework": "CISA StopRansomware Guide + NIST CSF",
        "version": "1.0",
        "generated": datetime.now().isoformat(),
        "preparation": CISA_PREPARATION_CHECKLIST,
        "response_phases": RESPONSE_PHASES,
        "escalation_matrix": {
            "severity_1_critical": {
                "criteria": "Encryption active, spreading across network, critical systems affected",
                "notify": ["CISO", "CEO", "Legal Counsel", "External IR Firm", "CISA", "FBI"],
                "response_time": "Immediate",
            },
            "severity_2_high": {
                "criteria": "Encryption contained to single segment, no critical systems affected",
                "notify": ["CISO", "IT Director", "Legal Counsel"],
                "response_time": "Within 1 hour",
            },
            "severity_3_medium": {
                "criteria": "Ransomware detected but not yet executed (pre-encryption)",
                "notify": ["SOC Manager", "IT Director"],
                "response_time": "Within 4 hours",
            },
        },
        "communication_plan": {
            "internal": "Use out-of-band channel (Signal, phone tree) - assume email compromised",
            "external_stakeholders": "Prepared holding statement; legal review before public disclosure",
            "regulatory": "GDPR 72h, HIPAA 60d, SEC 4 business days, state-specific breach laws",
            "cisa_reporting": "Report to report.cisa.gov within 24 hours",
        },
    }
    return playbook


def generate_markdown_playbook(playbook):
    """Render playbook as Markdown document."""
    lines = [f"# {playbook['title']}", "", f"**Framework:** {playbook['framework']}",
             f"**Version:** {playbook['version']}", f"**Generated:** {playbook['generated']}", ""]

    lines.append("## Preparation Checklist (CISA Part 1)")
    lines.append("")
    for ctrl_id, ctrl in playbook["preparation"].items():
        lines.append(f"- [ ] **{ctrl_id}**: {ctrl['control']} - {ctrl['description']} "
                      f"[{ctrl['priority']}]")
    lines.append("")

    lines.append("## Response Phases (CISA Part 2)")
    lines.append("")
    for phase_id, phase in playbook["response_phases"].items():
        lines.append(f"### {phase['name']} (Target: {phase['time_target']})")
        lines.append("")
        for i, step in enumerate(phase["steps"], 1):
            lines.append(f"{i}. {step}")
        lines.append("")

    lines.append("## Escalation Matrix")
    lines.append("")
    for sev, details in playbook["escalation_matrix"].items():
        lines.append(f"### {sev.replace('_', ' ').title()}")
        lines.append(f"- **Criteria:** {details['criteria']}")
        lines.append(f"- **Notify:** {', '.join(details['notify'])}")
        lines.append(f"- **Response Time:** {details['response_time']}")
        lines.append("")

    return "\n".join(lines)


if __name__ == "__main__":
    print("=" * 60)
    print("CISA Ransomware Playbook Builder Agent")
    print("Playbook generation and readiness assessment")
    print("=" * 60)

    if len(sys.argv) < 2:
        print("\nUsage:")
        print("  python agent.py generate [org_name]     Generate playbook")
        print("  python agent.py assess <controls.json>  Assess readiness")
        print("  python agent.py checklist               Print CISA checklist")
        sys.exit(0)

    command = sys.argv[1]

    if command == "generate":
        org = sys.argv[2] if len(sys.argv) > 2 else "Organization"
        playbook = generate_playbook(org)
        md = generate_markdown_playbook(playbook)
        output_file = f"ransomware_playbook_{org.lower().replace(' ', '_')}.md"
        with open(output_file, "w") as f:
            f.write(md)
        print(f"\n[+] Playbook generated: {output_file}")
        print(f"[+] Contains {len(CISA_PREPARATION_CHECKLIST)} preparation controls")
        print(f"[+] Contains {len(RESPONSE_PHASES)} response phases")
        print(f"\n{md[:500]}...")

    elif command == "assess":
        if len(sys.argv) < 3:
            print("[!] Provide a JSON file with current control statuses")
            print('    Format: {"PREP-01": "implemented", "PREP-02": "not_implemented", ...}')
            sys.exit(1)
        with open(sys.argv[2]) as f:
            controls = json.load(f)
        results = assess_readiness(controls)
        print(f"\n--- Ransomware Readiness Assessment ---")
        print(f"  Score: {results['score']}% ({results['implemented']}/{results['total_controls']})")
        if results["gaps"]:
            print(f"\n  Critical Gaps:")
            for gap in results["gaps"]:
                print(f"    [{gap['priority']}] {gap['id']}: {gap['control']}")
        print(f"\n{json.dumps(results, indent=2)}")

    elif command == "checklist":
        print("\n--- CISA Ransomware Preparation Checklist ---")
        for ctrl_id, ctrl in CISA_PREPARATION_CHECKLIST.items():
            print(f"  [{ctrl['priority']:8s}] {ctrl_id}: {ctrl['control']}")
            print(f"             {ctrl['description']}")
    else:
        print(f"[!] Unknown command: {command}")