Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/killvxk/cybersecurity-skills-zh/analyzing-powershell-script-block-loggingnpx skills add killvxk/cybersecurity-skills-zh --skill analyzing-powershell-script-block-logginggit clone --depth 1 https://github.com/killvxk/cybersecurity-skills-zhWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/killvxk/cybersecurity-skills-zh/analyzing-powershell-script-block-logging)<a href="https://agentmods.dev/skills/killvxk/cybersecurity-skills-zh/analyzing-powershell-script-block-logging"><img src="https://agentmods.dev/badge/skills/killvxk/cybersecurity-skills-zh/analyzing-powershell-script-block-logging.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00111 | $0.00513 |
| Opus 5 | $0.00056 | $0.00257 |
| Sonnet 5 | $0.00022 | $0.00103 |
| Haiku 4.5 | $0.00011 | $0.00051 |
Grade A, and why
analyzing-powershell-script-block-logging scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
使用说明
- 安装依赖:
pip install python-evtx lxml - 收集 PowerShell 操作日志:
Microsoft-Windows-PowerShell%4Operational.evtx - 使用 python-evtx 解析事件 ID 4104 条目，提取 ScriptBlockText、ScriptBlockId 以及 MessageNumber/MessageTotal，用于多块脚本重建。
- 应用检测启发式规则：
- Base64 编码命令（
-EncodedCommand、FromBase64String） - 下载植入器（
DownloadString、DownloadFile、Invoke-WebRequest、Net.WebClient） - AMSI 绕过模式（
AmsiUtils、amsiInitFailed） - 混淆指标（高熵、反引号插入、字符串拼接）
- Base64 编码命令（
- 生成报告，包含重建脚本、风险评分和 MITRE ATT&CK 映射。
python scripts/agent.py --evtx-file /path/to/PowerShell-Operational.evtx --output ps_analysis.json
示例
检测编码命令执行
import base64
if "-encodedcommand" in script_text.lower():
encoded = script_text.split()[-1]
decoded = base64.b64decode(encoded).decode("utf-16-le")
重建多块脚本
拆分在多个 4104 事件中的脚本共享一个 ScriptBlockId。按 MessageNumber 顺序拼接各块以恢复完整脚本。
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 41 lines · 111 tokens per session scan A 2e6a8f30e3ca
analyzing-powershell-script-block-logging is a skill published in the GitHub repository killvxk/cybersecurity-skills-zh (44 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 111 tokens to every session and 513 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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golang
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