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API 게이트웨이 액세스 로그 분석

AWS API Gateway, Kong, Nginx 등 API 게이트웨이 액세스 로그를 파싱하여 보안 위협을 탐지합니다.

API 게이트웨이 액세스 로그 분석란 무엇인가요?

이 스킬은 API 게이트웨이 액세스 로그를 분석하여 BOLA(객체 수준 권한 위반), 과도한 데이터 노출, 인젝션 공격 등 주요 API 취약점을 탐지하는 방법을 제공합니다. Python과 pandas를 활용하여 로그 데이터를 처리하며, 순차적 리소스 ID 열거, 헤더 조작을 통한 속도 제한 우회, 단일 소스에서의 401 오류 급증(자격 증명 스캐닝), SQL/NoSQL 인젝션, 읽기 전용 엔드포인트에 대한 비정상적 HTTP 메서드 사용 등의 패턴을 식별합니다. 보안 운영 센터(SOC) 분석가가 사고 조사, 탐지 규칙 구축, 위협 헌팅 쿼리 작성 시 활용할 수 있으며, 안전한 실행을 위한 실습 환경 접근 권한과 Python 3.8 이상이 필요합니다.

지원 대상~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/analyzing-api-gateway-access-logs

즐겨 사용하는 AI에게 물어보기

이 에이전트 스킬이 미리 로드된 새 채팅을 엽니다.

문서

API 게이트웨이 액세스 로그 분석은(는) 무엇을 하나요?

사용 시기

  • API 게이트웨이 액세스 로그 분석이 필요한 보안 사고를 조사할 때
  • 이 도메인에 대한 탐지 규칙 또는 위협 헌팅 쿼리를 작성할 때
  • SOC 분석가가 이 분석 유형에 대한 체계적인 절차를 필요로 할 때
  • 관련 공격 기술에 대한 보안 모니터링 커버리지를 검증할 때

사전 요구 사항

  • 보안 운영 개념 및 도구에 대한 숙련도
  • 안전한 실행을 위한 테스트 또는 실습 환경 접근 권한
  • 필요한 종속성이 설치된 Python 3.8 이상
  • 모든 테스트 활동에 대한 적절한 인가

지침

API 게이트웨이 액세스 로그를 파싱하여 BOLA(객체 수준 권한 위반), 과도한 데이터 노출, 인젝션 시도 등 공격 패턴을 식별합니다.

import pandas as pd

df = pd.read_json("api_gateway_logs.json", lines=True)
# BOLA 탐지: 동일 사용자가 다양한 리소스 ID에 접근
bola = df.groupby(["user_id", "endpoint"]).agg(
    unique_ids=("resource_id", "nunique")).reset_index()
suspicious = bola[bola["unique_ids"] > 50]

주요 탐지 패턴:

  1. BOLA/IDOR: 순차적 리소스 ID 열거
  2. 헤더 조작을 통한 속도 제한 우회
  3. 자격 증명 스캐닝 (단일 소스에서 401 오류 급증)
  4. 쿼리 매개변수 내 SQL/NoSQL 인젝션
  5. 읽기 전용 엔드포인트에 대한 비정상적 HTTP 메서드 (DELETE, PATCH)

예시

# 자격 증명 스캐닝을 나타내는 401 오류 급증 탐지
auth_failures = df[df["status_code"] == 401]
scanner_ips = auth_failures.groupby("source_ip").size()
scanners = scanner_ips[scanner_ips > 100]

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

abusing-dpapi-for-credential-access

Extract and decrypt Windows DPAPI-protected secrets (Credential Manager, browser logins/cookies, Wi-Fi credentials, KeePass keys) online or offline using SharpDPAPI, SharpChrome, Mimikatz, or Impacket

abusing-shadow-credentials-for-privesc

Take over Active Directory accounts by writing attacker-controlled public keys to msDS-KeyCredentialLink (Shadow Credentials) with pyWhisker, Whisker, or Certipy, then authenticate via PKINIT to recover the target

achieving-cmmc-level-2-compliance

>-

acquiring-disk-image-with-dd-and-dcfldd

Create forensically sound bit-for-bit disk images with dd or dcfldd on a Linux forensic workstation, preserving evidence integrity through hash verification (MD5/SHA) during acquisition. Use when imaging a suspect drive, USB device, or memory card for investigation, preserving volatile disk evidence during incident response, or producing a verified copy for legal or law-enforcement proceedings before any destructive analysis.

analyzing-active-directory-acl-abuse

Detect dangerous ACL misconfigurations in Active Directory using ldap3

analyzing-android-malware-with-apktool

Perform static analysis of Android APK malware using apktool for resource decompilation, jadx for Java source recovery, and androguard for manifest inspection, dangerous permission-combination detection, and identification of obfuscated code, dynamic code loading, and reflection-based API calls. Use to statically triage a suspicious APK without executing it or to build mobile malware detection rules.

analyzing-apt-group-with-mitre-navigator

Query ATT&CK data with attackcti, mitreattack-python, and stix2, then build MITRE ATT&CK Navigator layers and multi-layer heatmap overlays mapping one or more APT groups

analyzing-azure-activity-logs-for-threats

Queries Azure Monitor activity logs and sign-in logs via azure-monitor-query

analyzing-bootkit-and-rootkit-samples

Analyzes bootkit and advanced rootkit malware infecting the Master

analyzing-browser-forensics-with-hindsight

Parse Chromium-based browser databases with Hindsight to extract and correlate browsing history, downloads, cookies, cached content, autofill data, saved passwords, and extensions from Chrome, Edge, Brave, Opera, and Vivaldi into a unified timeline (XLSX, JSON, or SQLite output). Use during incident response, insider-threat investigations, or criminal cases when you need to reconstruct a user

analyzing-campaign-attribution-evidence

Systematically evaluate cyber-campaign evidence to attribute an operation to a threat actor, using the Diamond Model and Analysis of Competing Hypotheses (ACH) to weigh infrastructure overlaps, TTP consistency, malware code similarity, and timing/language artifacts into confidence-weighted attribution assessments. Use when an incident investigation needs a defensible attribution confidence level.

analyzing-certificate-transparency-for-phishing

Monitor Certificate Transparency logs using crt.sh and Certstream to

analyzing-cloud-storage-access-patterns

Detect abnormal access in AWS S3, GCS, and Azure Blob Storage by analyzing CloudTrail Data Events, GCS audit logs, and Azure Storage Analytics for after-hours bulk downloads, new-IP access, and API-call spikes (e.g. GetObject) via statistical baselines and time-series anomaly detection. Use when investigating suspected cloud data exfiltration or building related detection rules.

analyzing-cobalt-strike-beacon-configuration

Extract and analyze Cobalt Strike beacon configuration from PE files

analyzing-cobaltstrike-malleable-c2-profiles

Parse and analyze Cobalt Strike Malleable C2 profiles with dissect.cobaltstrike (profiles and beacon-payload configs) and pyMalleableC2 (AST parsing) to extract HTTP/DNS transforms, URIs, headers, sleep/jitter, and injection behavior, then generate network detection signatures. Use when reverse-engineering a captured malleable profile or building detections against Cobalt Strike Beacon traffic.

analyzing-command-and-control-communication

Analyzes malware C2 communication over HTTP, HTTPS, DNS, and custom

analyzing-cyber-kill-chain

Analyzes intrusion activity against the Lockheed Martin Cyber Kill Chain

analyzing-disk-image-with-autopsy

Perform comprehensive forensic analysis of raw (dd), E01, or AFF disk images with Autopsy and The Sleuth Kit, recovering deleted files, examining metadata and embedded artifacts, keyword searching, and building investigation timelines with visual reports. Use for structured analysis of a forensic disk image or when stakeholders need visual reports from evidence.

analyzing-dns-logs-for-exfiltration

Analyzes DNS query logs to detect data exfiltration via DNS tunneling,

analyzing-docker-container-forensics

Investigate compromised Docker containers by analyzing images, layers,

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