class IncidentResponseSystem {
private playbooks: Map<string, IncidentPlaybook>;
private incidents: Map<string, Incident>;
private communications: CommunicationManager;
private forensics: ForensicsManager;
constructor() {
this.playbooks = new Map();
this.incidents = new Map();
this.communications = new CommunicationManager();
this.forensics = new ForensicsManager();
this.initializePlaybooks();
}
private initializePlaybooks() {
this.playbooks.set('malware_detection', new IncidentPlaybook({
name: '恶意软件检测',
severity: 'high',
steps: [
{
name: '隔离受感染系统',
action: this.isolateSystem,
validation: this.validateIsolation
},
{
name: '分析恶意软件',
action: this.analyzeMalware,
validation: this.validateAnalysis
},
{
name: '清除恶意软件',
action: this.removeMalware,
validation: this.validateRemoval
},
{
name: '恢复系统',
action: this.restoreSystem,
validation: this.validateRestoration
}
],
stakeholders: ['security_team', 'it_team', 'management']
}));
this.playbooks.set('data_breach', new IncidentPlaybook({
name: '数据泄露事件',
severity: 'critical',
steps: [
{
name: '确认泄露范围',
action: this.confirmBreachScope,
validation: this.validateScopeConfirmation
},
{
name: '控制泄露源',
action: this.controlBreachSource,
validation: this.validateSourceControl
},
{
name: '通知相关方',
action: this.notifyStakeholders,
validation: this.validateNotification
},
{
name: '修复漏洞',
action: this.patchVulnerability,
validation: this.validatePatch
}
],
stakeholders: ['security_team', 'legal_team', 'pr_team', 'management']
}));
this.playbooks.set('ddos_attack', new IncidentPlaybook({
name: 'DDoS攻击',
severity: 'critical',
steps: [
{
name: '确认攻击',
action: this.confirmAttack,
validation: this.validateAttackConfirmation
},
{
name: '启动防护',
action: this.activateProtection,
validation: this.validateProtection
},
{
name: '监控攻击',
action: this.monitorAttack,
validation: this.validateMonitoring
},
{
name: '缓解攻击',
action: this.mitigateAttack,
validation: this.validateMitigation
}
],
stakeholders: ['security_team', 'network_team', 'management']
}));
}
async handleIncident(incidentData: IncidentData): Promise<Incident> {
const incident: Incident = {
id: this.generateIncidentId(),
created_at: new Date(),
type: incidentData.type,
severity: incidentData.severity,
description: incidentData.description,
status: 'new',
playbook: null,
steps: [],
stakeholders: [],
communications: [],
timeline: [],
resolution: null
};
const playbook = this.identifyPlaybook(incident);
incident.playbook = playbook;
incident.status = 'in_progress';
this.incidents.set(incident.id, incident);
await this.notifyIncidentCreated(incident);
await this.executeResponseSteps(incident);
await this.performForensics(incident);
return incident;
}
private identifyPlaybook(incident: Incident): IncidentPlaybook | null {
for (const [playbookName, playbook] of this.playbooks) {
if (this.isPlaybookApplicable(playbook, incident)) {
return playbook;
}
}
return null;
}
private isPlaybookApplicable(playbook: IncidentPlaybook, incident: Incident): boolean {
if (incident.severity !== playbook.severity) {
return false;
}
return true;
}
private async executeResponseSteps(incident: Incident): Promise<void> {
if (!incident.playbook) return;
const playbook = incident.playbook;
for (const step of playbook.steps) {
try {
const result = await step.action(incident);
incident.steps.push({
step_name: step.name,
executed_at: new Date(),
status: 'completed',
result: result,
notes: ''
});
const validation = await step.validation(result);
if (!validation.success) {
incident.steps[incident.steps.length - 1].status = 'failed';
incident.steps[incident.steps.length - 1].notes = validation.message;
await this.triggerStepFailureAlert(incident, step);
}
} catch (error) {
incident.steps.push({
step_name: step.name,
executed_at: new Date(),
status: 'failed',
result: null,
notes: error.message
});
await this.triggerStepFailureAlert(incident, step);
}
}
const allStepsCompleted = incident.steps.every(step => step.status === 'completed');
if (allStepsCompleted) {
incident.status = 'resolved';
await this.notifyIncidentResolved(incident);
}
}
private async performForensics(incident: Incident): Promise<ForensicsReport> {
const report: ForensicsReport = {
incident_id: incident.id,
performed_at: new Date(),
findings: [],
timeline: [],
recommendations: []
};
const evidence = await this.collectEvidence(incident);
report.findings.push(...evidence);
const timeline = await this.analyzeTimeline(incident);
report.timeline.push(...timeline);
const recommendations = await this.generateForensicsRecommendations(incident);
report.recommendations.push(...recommendations);
incident.forensics_report = report;
return report;
}
private async collectEvidence(incident: Incident): Promise<Evidence[]> {
const evidence: Evidence[] = [];
const logEvidence = await this.collectLogEvidence(incident);
evidence.push(...logEvidence);
const networkEvidence = await this.collectNetworkEvidence(incident);
evidence.push(...networkEvidence);
const systemEvidence = await this.collectSystemEvidence(incident);
evidence.push(...systemEvidence);
return evidence;
}
private async collectLogEvidence(incident: Incident): Promise<Evidence[]> {
return [];
}
private async collectNetworkEvidence(incident: Incident): Promise<Evidence[]> {
return [];
}
private async collectSystemEvidence(incident: Incident): Promise<Evidence[]> {
return [];
}
private async analyzeTimeline(incident: Incident): Promise<TimelineEvent[]> {
const timeline: TimelineEvent[] = [];
timeline.push({
timestamp: incident.created_at,
event: 'incident_detected',
description: '安全事件被检测到',
source: 'monitoring_system'
});
incident.steps.forEach(step => {
timeline.push({
timestamp: step.executed_at,
event: 'step_executed',
description: `步骤 ${step.step_name} ${step.status === 'completed' ? '完成' : '失败'}`,
source: 'incident_response_system',
details: {
step_name: step.step_name,
status: step.status,
notes: step.notes
}
});
});
timeline.sort((a, b) => a.timestamp.getTime() - b.timestamp.getTime());
return timeline;
}
private async generateForensicsRecommendations(incident: Incident): Promise<Recommendation[]> {
const recommendations: Recommendation[] = [];
recommendations.push({
title: '加强监控',
description: '建议加强系统监控能力',
priority: 'medium'
});
recommendations.push({
title: '更新防护措施',
description: '建议更新安全防护措施',
priority: 'high'
});
return recommendations;
}
private async notifyIncidentCreated(incident: Incident): Promise<void> {
await this.communications.sendNotification({
type: 'incident_created',
incident_id: incident.id,
severity: incident.severity,
message: `新的事件已创建: ${incident.description}`,
recipients: this.getStakeholders(incident),
priority: this.getNotificationPriority(incident.severity)
});
}
private async notifyIncidentResolved(incident: Incident): Promise<void> {
await this.communications.sendNotification({
type: 'incident_resolved',
incident_id: incident.id,
message: `事件已解决: ${incident.description}`,
recipients: this.getStakeholders(incident),
priority: 'normal'
});
}
private getStakeholders(incident: Incident): string[] {
if (incident.playbook) {
return incident.playbook.stakeholders;
}
return ['security_team', 'management'];
}
private getNotificationPriority(severity: string): string {
const priorityMap = {
'low': 'low',
'medium': 'medium',
'high': 'high',
'critical': 'critical'
};
return priorityMap[severity] || 'medium';
}
private async triggerStepFailureAlert(incident: Incident, step: ResponseStep): Promise<void> {
await this.communications.sendAlert({
type: 'step_failure',
incident_id: incident.id,
step_name: step.name,
message: `响应步骤 ${step.name} 执行失败`,
severity: 'high',
requires_acknowledgement: true
});
}
private generateIncidentId(): string {
const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
const random = Math.random().toString(36).substr(2, 6);
return `INC-${timestamp}-${random}`;
}
private async isolateSystem(incident: Incident): Promise<IsolationResult> {
console.log(`隔离系统: ${incident.id}`);
return {
success: true,
isolated_systems: [],
affected_users: [],
estimated_impact: 'medium'
};
}
private async validateIsolation(result: IsolationResult): Promise<ValidationResult> {
return {
success: result.success,
message: result.success ? '系统隔离成功' : '系统隔离失败'
};
}
private async analyzeMalware(incident: Incident): Promise<MalwareAnalysis> {
console.log(`分析恶意软件: ${incident.id}`);
return {
detected_threats: [],
analysis_complete: true,
recommendations: []
};
}
private async validateAnalysis(result: MalwareAnalysis): Promise<ValidationResult> {
return {
success: result.analysis_complete,
message: result.analysis_complete ? '恶意软件分析完成' : '恶意软件分析未完成'
};
}
private async removeMalware(incident: Incident): Promise<MalwareRemovalResult> {
console.log(`清除恶意软件: ${incident.id}`);
return {
removed_threats: [],
system_clean: true,
reboot_required: false
};
}
private async validateRemoval(result: MalwareRemovalResult): Promise<ValidationResult> {
return {
success: result.system_clean,
message: result.system_clean ? '系统已清理' : '系统未完全清理'
};
}
private async restoreSystem(incident: Incident): Promise<SystemRestoreResult> {
console.log(`恢复系统: ${incident.id}`);
return {
restored_systems: [],
recovery_complete: true,
data_integrity: 'verified'
};
}
private async validateRestoration(result: SystemRestoreResult): Promise<ValidationResult> {
return {
success: result.recovery_complete,
message: result.recovery_complete ? '系统恢复完成' : '系统恢复未完成'
};
}
}
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