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来源:https://www.52pojie.cn/thread-2125841-1-1.html
发现:CrazyNut
抄送:@火绒工程师
发现者描述- 一不小心安装了一个假的 Microsoft Teams 安装包
复制代码
下载来源
暂未提供
文件指纹
Teams Setup.msi
大小: 50913280 字节 : 48 MiB
CRC32: 1C583B8C
CRC64: AEB192D04ED50CDE
XXH64: 8F0C00C1140EC5C6
SHA256: 31347e57d7d2a47d76231b067cd92df38f684930efd3a29ceb78cc4dc985200d
SHA3-256: ffebe6df476d5f92b3ef786f97bb376e85ea31b6c4115657fdcfc30fe26eeda5
teams-launcher.exe
大小: 49654768 字节 : 47 MiB
CRC32: A2B2AE7A
CRC64: 275808A6D707F657
XXH64: 60F927CC3BA67634
SHA256: 6e6c2e394915cfe078b9c6f7d1969720628bb2842ba0141b597a7e1565e400b2
SHA3-256: 36de8552b94fc3ad7c52840ed9637e57eecf544f273e32a7cce18b4d259986dd
火绒扫描(我自己的本地扫描结果)
6.0.11.3 版本
09-01 20:18 病毒库
2026/09/02 10:13:34
病毒防护
病毒查杀
自定义扫描(手动执行),发现0个风险项目
病毒库时间:2026-09-01 20:18
开始时间:2026-09-02 10:13
执行类型:手动执行
扫描类型:自定义扫描
总计用时:00:00:02
扫描对象:7
扫描文件:2
发现风险:0
已处理风险:0
解包工具- 常见 MSI、NSIS、Inno 打包程序解包工具(20180703 更新)
- https://www.52pojie.cn/thread-751608-1-1.html by Hmily
- lessmsi-v2.12.9 2026-04-03.zip
- https://github.com/activescott/lessmsi/releases
复制代码 外壳属性- NOT EXE - its MSI format ( .DOC .XLS .PPS ) -> Gen. OLE2 - .MSI - ver : 4.62
- 标题
- Teams Windows Installer
- 创建内容的时间
- 2024-12-21 21:45
- 程序名称
- Windows Installer XML Toolset (3.14.1.8722)
- 项目类型
- Windows Installer 程序包
- 作者
- Teams Company
复制代码 核心属性- x64 - [ Rust Compiler v1.12 - 1.96 or Unknown or not Rust - www.rust-lang.org ] - stub : x64 Microsoft Visual C++ v14.44 - 2025 - (exe 4883EC28-48) - [ Deb : 02 C++ CodeView ] ,
- Overlay : Signed
- 调试符号
- teams_launcher.pdb
- 编译时间
- 2026-08-03 08:20:15
- 文件说明
- Application Runtime Environment
- 类型
- 应用程序
- 产品名称
- Teams Launcher
- 文件版本
- 2.90.2117.26616
- 产品版本
- 8.97.5892.18531
- 大小
- 47.3 MB
- 版权
- Copyright 2025 Teams lnc.
- 语言
- 英语(美国)
- 合法商标
- Registered trademark.
- 原始文件名
- Teams Launcher.exe
复制代码 核心解压- SFX ZIP 压缩文件
- 总文件
- 1
- 总大小
- 797,183,936
- 打包大小
- 2,231,369,727
- 压缩率
- 279%
- SFX 模块大小
- 1,702,653 字节
复制代码 核心数签- 自签名证书
- Application Publisher
- 2026-08-03 08:20:15
- Application Publisher 签发
- SHA256 摘要算法,RSA 摘要加密算法
- 证书序列号:5c c0 a0 3d aa fa 04 47 a6 1d 56 04 64 04 c5 10 6f 21 a1 c0
复制代码 数签验证- 数字签名被篡改,哈希校验不通过,签名复制(Forged Signature)
复制代码 外壳报错- ---------------------------
- Teams Launcher Setup
- ---------------------------
- 系统无法打开指定的设备或文件。
- ---------------------------
- Retry
- Cancel
- ---------------------------
复制代码 默认位置- C:\Program Files\Teams Launcher\teams-launcher.exe
复制代码 释放文件- %LocalAppData%\com.applauncher.desktop\EBWebView
- 常见的 Chromium User Data 运行产物
复制代码 后台调用- msedgewebview2.exe"
- --embedded-browser-webview=1
- --webview-exe-name=teams-launcher.exe
- --webview-exe-version=8.97.5892.18531
- --user-data-dir="C:\Users\Administrator\AppData\Local\com.applauncher.desktop\EBWebView"
- --noerrdialogs
- --embedded-browser-webview-dpi-awareness=2
- --autoplay-policy=no-user-gesture-required
- --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection
- --enable-features=MojoIpcz
- --lang=zh-CN
- --mojo-named-platform-channel-pipe=4444.6508.10478349120750749191
- msedgewebview2.exe"
- --type=crashpad-handler
- --user-data-dir=C:\Users\Administrator\AppData\Local\com.applauncher.desktop\EBWebView /prefetch:4
- --monitor-self-annotation=ptype=crashpad-handler
- --database=C:\Users\Administrator\AppData\Local\com.applauncher.desktop\EBWebView\Crashpad
- --annotation=IsOfficialBuild=1
- --annotation=channel=
- --annotation=chromium-version=128.0.6613.114 "
- --annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\128.0.2739.54\msedgewebview2.exe"
- --annotation=plat=Win64 "
- --annotation=prod=Edge WebView2"
- --annotation=ver=128.0.2739.54
- --initial-client-data=0x1f8,0x1fc,0x200,0x1d4,0x1ac,0x7ffccc519fd8,0x7ffccc519fe4,0x7ffccc519ff0
- msedgewebview2.exe"
- --embedded-browser-webview=1
- --webview-exe-name=teams-launcher.exe
- --webview-exe-version=8.97.5892.18531
- --user-data-dir="C:\Users\Administrator\AppData\Local\com.applauncher.desktop\EBWebView"
- --noerrdialogs
- --embedded-browser-webview-dpi-awareness=2
- --autoplay-policy=no-user-gesture-required
- --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection
- --enable-features=MojoIpcz
- --lang=zh-CN
- --mojo-named-platform-channel-pipe=4444.6508.17584959315016413151
- msedgewebview2.exe"
- --type=crashpad-handler
- --user-data-dir=C:\Users\Administrator\AppData\Local\com.applauncher.desktop\EBWebView /prefetch:4
- --monitor-self-annotation=ptype=crashpad-handler
- --database=C:\Users\Administrator\AppData\Local\com.applauncher.desktop\EBWebView\Crashpad
- --annotation=IsOfficialBuild=1
- --annotation=channel=
- --annotation=chromium-version=128.0.6613.114 "
- --annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\128.0.2739.54\msedgewebview2.exe"
- --annotation=plat=Win64 "
- --annotation=prod=Edge WebView2"
- --annotation=ver=128.0.2739.54
- --initial-client-data=0x1f0,0x1f4,0x1f8,0x1cc,0x204,0x7ffccc519fd8,0x7ffccc519fe4,0x7ffccc519ff0
复制代码
下载来源
暂未提供
C2地址
暂无发现
外壳情况
https://virusscan.jotti.org/zh-CN/filescanjob/rwouessugt
https://tix.qq.com/search/single?keyword=8693b761190e744b76df962af5b833a2
https://sandbox.ti.qianxin.com/sandbox/page/detail?type=file&id=AaBfrd0emTITNisAPVDl
https://sandbox.dbappsecurity.com.cn/report/a520ced5-4701-4db8-b419-f76339cc49ea/flat
https://fenxi.antiy.cn/#/entirety/file/searchResult?hash=8693b761190e744b76df962af5b833a2
https://virus.cverc.org.cn/#/entirety/file/searchResult?hash=8693b761190e744b76df962af5b833a2
https://www.maldun.com/submit/submit_file#:~:text=您上传的文件超过了最大允许上传的大小限制
https://www.virscan.org/report/31347e57d7d2a47d76231b067cd92df38f684930efd3a29ceb78cc4dc985200d
https://www.virustotal.com/gui/file/31347e57d7d2a47d76231b067cd92df38f684930efd3a29ceb78cc4dc985200d
https://s.threatbook.com/report/file/31347e57d7d2a47d76231b067cd92df38f684930efd3a29ceb78cc4dc985200d
https://sandbox.qianxin.com/tq/report/toNewReport.do?rid=e3233af4a20fe0d495706a4774ce1994&sk=96945467
https://opentip.kaspersky.com/31347E57D7D2A47D76231B067CD92DF38F684930EFD3A29CEB78CC4DC985200D/results?tab=upload
核心情况
https://virusscan.jotti.org/zh-CN/filescanjob/8nfv5zxls8
https://tix.qq.com/search/single?keyword=bd7c6ac2a55300833ea5889ef71ff4f2
https://sandbox.dbappsecurity.com.cn/report/2d9b2124-b119-4f8b-bc31-aca5e3a7f6ff/flat
https://sandbox.ti.qianxin.com/sandbox/page/detail?type=file&id=AaBf6dURmTITNisAPVE7
https://fenxi.antiy.cn/#/entirety/file/searchResult?hash=bd7c6ac2a55300833ea5889ef71ff4f2
https://virus.cverc.org.cn/#/entirety/file/searchResult?hash=bd7c6ac2a55300833ea5889ef71ff4f2
https://www.maldun.com/submit/submit_file#:~:text=您上传的文件超过了最大允许上传的大小限制
https://www.virscan.org/report/6e6c2e394915cfe078b9c6f7d1969720628bb2842ba0141b597a7e1565e400b2
https://www.virustotal.com/gui/file/6e6c2e394915cfe078b9c6f7d1969720628bb2842ba0141b597a7e1565e400b2
https://sandbox.qianxin.com/tq/report/toNewReport.do?rid=e0d19ed53fa3f11625b6c4a88a37fd68&sk=20308589
https://s.threatbook.com/report/file/6e6c2e394915cfe078b9c6f7d1969720628bb2842ba0141b597a7e1565e400b2
https://opentip.kaspersky.com/6E6C2E394915CFE078B9C6F7D1969720628BB2842BA0141B597A7E1565E400B2/results?tab=upload
样本(发现提供)
提取码:无,解压码:52pojie- https://wwbcf.lanzoul.com/ifxT245w6oah?unzip=52pojie
复制代码 |
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