网络安全 Analyzing Powershell Empire Artifacts

Analyzing Powershell Empire Artifacts：网络安全 skill: analyzing-powershell-empire-artifacts，适用于安全分析、取证与威胁排查场景。

Skill Documentation

网络安全 Analyzing Powershell Empire Artifacts

摘要

Analyzing Powershell Empire Artifacts：网络安全 skill: analyzing-powershell-empire-artifacts，适用于安全分析、取证与威胁排查场景。

> 来源: mukul975/Anthropic-Cybersecurity-Skills (18k stars) — 网络安全专业技能集

> 原文件: skills/analyzing-powershell-empire-artifacts/SKILL.md

> 模型推荐: claude-opus-4-7 (安全分析深度推理)

这个 skill 是干嘛的

mukul975 整理的 100+ 个网络安全专业 skill — 覆盖渗透测试 / 取证 / 威胁情报 / 合规审计 / 云安全 / 移动安全 等领域。每个 skill 对应一个具体的安全分析任务。

michael 强调"skill 要有相应的指导功能,指导用户使用",所以加了下面两节让 Agent 和用户对接。

---

🤖 Agent 使用说明

1. 用户提到"分析 X 日志 / 取证 / 检测威胁 / 渗透测试 / 安全审计"时触发对应 skill

2. skill 按操作步骤执行(取证镜像 / 解析日志 / 跑威胁情报)

3. 涉及破坏性操作前必须 ask user 确认

4. 完工后跑自检

5. 区分"防御性分析" vs "恶意代码审计"

👤 用户需要做什么?

1. 告诉 Agent 你要做什么(分析日志 / 取证 / 安全审计 / 渗透测试)

2. 按 Agent 提示提供文件/镜像/日志/哈希

3. 涉及破坏性操作时明确告诉 Agent"继续"或"取消"

4. 全程 Agent 自动化,你只需提供数据 + 回答决策点

---

原 skill 内容(mukul975/Anthropic-Cybersecurity-Skills/skills/analyzing-powershell-empire-artifacts/SKILL.md,截断到 12k chars)

---

name: analyzing-powershell-empire-artifacts

description: Detect PowerShell Empire post-exploitation framework artifacts in Windows Script Block Logging (Event ID 4104) and Module Logging (Event ID 4103), including the default launcher string, Base64-encoded WebClient/FromBase64String payloads, known module invocations (Invoke-Mimikatz, Invoke-Kerberoast), and staging URL patterns. Use when hunting for or confirming Empire C2 activity in Windows event logs.

domain: cybersecurity

subdomain: threat-hunting

tags:

• PowerShell-Empire
• threat-hunting
• Script-Block-Logging
• base64
• stager
• C2
• MITRE-ATT&CK
• T1059.001
• forensics

version: '1.0'

author: mahipal

license: Apache-2.0

d3fend_techniques:

• Executable Denylisting
• Execution Isolation
• File Metadata Consistency Validation
• Content Format Conversion
• File Content Analysis

nist_ai_rmf:

• GOVERN-1.1
• MEASURE-2.7
• MANAGE-3.1

nist_csf:

• DE.CM-01
• DE.AE-02
• DE.AE-07
• ID.RA-05

mitre_attack:

• T1059.001
• T1071.001
• T1003.001
• T1558.003
• T1027.010

---

Analyzing PowerShell Empire Artifacts

Overview

PowerShell Empire is a post-exploitation framework consisting of listeners, stagers, and agents. Its artifacts leave detectable traces in Windows event logs, particularly PowerShell Script Block Logging (Event ID 4104) and Module Logging (Event ID 4103). This skill analyzes event logs for Empire's default launcher string (`powershell -noP -sta -w 1 -enc`), Base64 encoded payloads containing `System.Net.WebClient` and `FromBase64String`, known module invocations (Invoke-Mimikatz, Invoke-Kerberoast, Invoke-TokenManipulation), and staging URL patterns.

When to Use

• When investigating security incidents that require analyzing powershell empire artifacts
• When building detection rules or threat hunting queries for this domain
• When SOC analysts need structured procedures for this analysis type
• When validating security monitoring coverage for related attack techniques

Prerequisites

• Python 3.9+ with access to Windows Event Log or exported EVTX files
• PowerShell Script Block Logging (Event ID 4104) enabled via Group Policy
• Module Logging (Event ID 4103) enabled for comprehensive coverage

Key Detection Patterns

1. **Default launcher** — `powershell -noP -sta -w 1 -enc` followed by Base64 blob

2. **Stager indicators** — `System.Net.WebClient`, `DownloadData`, `DownloadString`, `FromBase64String`

3. **Module signatures** — Invoke-Mimikatz, Invoke-Kerberoast, Invoke-TokenManipulation, Invoke-PSInject, Invoke-DCOM

4. **User agent strings** — default Empire user agents in HTTP listener configuration

5. **Staging URLs** — `/login/process.php`, `/admin/get.php` and similar default URI patterns

Output

JSON report with matched IOCs, decoded Base64 payloads, timeline of suspicious events, MITRE ATT&CK technique mappings, and severity scores.

常见问题（FAQ）

使用「Analyzing Powe」这个 skill 能解决什么问题?

本 skill 专注于Analyzing Powe，网络安全 skill: analyzing-powershell-empire-artifacts。它将相关流程标准化，帮助用户更快拿到可靠结果，减少重复手工操作。

什么情况下适合使用「Analyzing Powe」?

当你需要在Analyzing Powershell Empire Artifacts相关工作中获得稳定、可复用的产出时最适合——无论是单次任务还是纳入日常工作流，都能直接调用。

使用「Analyzing Powe」前需要准备什么?

需要明确授权范围内的目标系统或样本文件，并准备隔离的分析环境（虚拟机/沙箱）。