mandiant / mandiant/capa-rules

[Rule Idea] - Hide Desktop Icons

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rule idea
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Avg merge
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Merged PRs (30d)
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Description

## Prerequisites

* [x] Put an X between the brackets on this line if you have done all of the following:
* Checked that your rule idea isn't already filed: [search](https://github.com/fireeye/capa-rules/issues?q=is%3Aissue+is%3Aopen+)

## Summary
A ransomware-like technique to hide desktop icons.

## Examples
Code segment is here -> https://vxug.fakedoma.in/papers/VXUG/Exclusive/HideDesktopIcons.cpp

## Features
* Folder flags of `0x00001000 = FWF_NOICONS`
* SetCurrentFolderFlags

## Additional context

## Rule details

### Namespace
* `host-interaction/gui/window/hide/`

### References
* https://vxug.fakedoma.in/papers/VXUG/Exclusive/HideDesktopIcons.cpp

### Other rule meta information

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the referenced HideDesktopIcons.cpp and the listed FWF_NOICONS and SetCurrentFolderFlags indicators. Add a capa rule under the specified host-interaction/gui/window/hide/ namespace that represents this behavior, and verify that the rule recognizes the referenced technique.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
operating-systems, security
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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