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RTT· red team

RTT · red team

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Techniques›Defense Evasion›HTML Help (CHM) Proxy Execution

Defense Evasion

HTML Help (CHM) Proxy Execution

T1218.001 · MITRE ATT&CK

On Windows, adversaries can abuse compiled HTML Help (.chm) content loaded by hh.exe to proxy execution through the HTML Help system. CHM files can contain HTML and scripting or ActiveX content, but opening a CHM does not guarantee arbitrary code execution; the observed behavior depends on the file contents, host configuration, and user interaction. ATT&CK T1218.001 describes this system-binary proxy execution behavior.

ArtifactsRESTRICTED_ACCESS_BLUR_MARKER

Steps1

CategoryLOLBin Abuse

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Walkthrough

Step 1

RESTRICTED_ACCESS_BLUR_MARKER

RESTRICTED_ACCESS_BLUR_MARKER

Requirements: ALL(RESTRICTED_ACCESS_BLUR_MARKER)

Check before starting: RESTRICTED_ACCESS_BLUR_MARKER

Coverage Gap: No catalog tool command currently produces this step's declared outcomes.

RESTRICTED_ACCESS_BLUR_MARKER

Detection signal

Detection 01

RESTRICTED_ACCESS_BLUR_MARKER

Mitigations

Mitigation 01

RESTRICTED_ACCESS_BLUR_MARKER

OPSEC notes

RESTRICTED_ACCESS_BLUR_MARKER

References

Extended details

RESTRICTED_ACCESS_BLUR_MARKER