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analyzing-banking-trojan-webinjects

Analyzes banking trojan webinject configurations to extract targeted institutions, injected JavaScript/HTML, and data-theft hooks, mapping the fraud workflow. Activates for requests to analyze banking trojan webinjects, parse a webinject config, or map targeted banks and credential-theft injections.

中文简介正在准备中。当前显示原文说明。

查看安装方法

包含的文件(4)

  • SKILL.md2.7 KB
  • LICENSE340 B
  • references/api-reference.md1.4 KB
  • scripts/analyst.py2.6 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

Analyzing Banking Trojan Webinjects

When to Use

  • You have a banking trojan webinject config (Zeus/Gozi/Dridex-style set_url/data_before/ data_inject blocks) and want to extract targeted institutions and injected code.
  • You are mapping the web-fraud workflow (form-grabbing, fake fields, MFA interception).

Do not use this to deploy or test injects against live banking sites. This skill parses the config statically and executes nothing.

Prerequisites

  • The decoded webinject config text (decrypt the config first if needed).

Safety & Handling

  • Treat injected JS/HTML as malicious; do not render it. Defang any exfil URLs.

Workflow

Step 1: Parse webinject blocks

python scripts/analyst.py parse webinjects.txt

Parses set_url/data_before/data_inject/data_after blocks into structured entries with the targeted URL pattern and the injected snippet.

Step 2: Extract targets and exfil endpoints

List targeted institution URL patterns and any exfil endpoints referenced by the injected code.

Step 3: Classify the injection technique

Identify form-grabbing, fake additional fields (SSN, PIN, card), and MFA/OTP interception from the injected markup/JS.

Step 4: Defang and report

Defang URLs and summarize targeted banks and theft techniques.

Validation

  • Each webinject block is parsed into target URL + injection.
  • Exfil endpoints in injected code are extracted and defanged.
  • Injection techniques are classified from the snippet content.

Pitfalls

  • Encrypted/packed configs needing decryption before parsing.
  • Wildcard URL patterns matching broadly — note the scope.
  • Obfuscated injected JS hiding the true exfil endpoint.

References

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