自动化接入 · API / MCP EN

技术说明 · T1218.001

Compiled HTML File

Adversaries may abuse Compiled HTML files (.chm) to conceal malicious code. CHM files are commonly distributed as part of the Microsoft HTML Help system. CHM files are compressed compilations of various content such as HTML documents, images, and scripting/web related programming languages such as VBA, JScript, Java, and ActiveX. CHM content is displayed using underlying components of the Internet Explorer browser loaded by the HTML Help executable program (hh.exe). A custom CHM file containing embedded payloads could be delivered to a victim then triggered by User Execution. CHM execution may also bypass application control on older and/or unpatched systems that do not account for execution of binaries through hh.exe.

ATT&CK T1218.001 platforms — 状态 有效 版本 20.1

Adversaries may abuse Compiled HTML files (.chm) to conceal malicious code. CHM files are commonly distributed as part of the Microsoft HTML Help system. CHM files are compressed compilations of various content such as HTML documents, images, and scripting/web related programming languages such as VBA, JScript, Java, and ActiveX.1 CHM content is displayed using underlying components of the Internet Explorer browser2 loaded by the HTML Help executable program (hh.exe).3 A custom CHM file containing embedded payloads could be delivered to a victim then triggered by User Execution. CHM execution may also bypass application control on older and/or unpatched systems that do not account for execution of binaries through hh.exe.45

  1. Microsoft HTML Help May 2018
  2. Microsoft HTML Help ActiveX
  3. Microsoft HTML Help Executable Program
  4. MsitPros CHM Aug 2017
  5. Microsoft CVE-2017-8625 Aug 2017

使用该技术的组织

组织名称国家
grp_g0070Dark Caracal—
grp_g0049OilRigIran
grp_g0082APT38DPRK
grp_g0091Silence—
grp_g0096APT41China

断言

尚无指向该技术的公开断言。

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