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Add evasion module applocker_evasion_install_util #11795

Merged
merged 18 commits into from
Jul 23, 2019
Merged

Add evasion module applocker_evasion_install_util #11795

merged 18 commits into from
Jul 23, 2019

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NickTyrer
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@NickTyrer NickTyrer commented Apr 29, 2019

Intro

This module is designed to evade solutions such as software restriction policies and Applocker.
The main vector for this bypass is to use the trusted binary InstallUtil.exe in executing user supplied code.

This pull request is in reference to the previous pull request #8783.

Vulnerable Application

This evasion will work on all versions of Windows that include .net versions 3.5 or greater (note: ensure the selected payload matches the target os architecture).

Verification Steps

  1. Enable Applocker and enable executable rules
  2. Verify a standard .exe will not run from the users desktop
  3. Do use evasion/windows/applocker_evasion_install_util
  4. Do exploit
  5. Follow the onscreen instructions by copying the created file to the targets desktop
  6. Verify that the .exe executes from the users Desktop

@bcoles bcoles added the module label Apr 29, 2019
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@busterb should I submit each Applocker evasion technique as separate evasion modules or should I create one module that gives the option of which Applocker evasion to create?

modules/evasion/windows/applocker_evasion_install_util.rb Outdated Show resolved Hide resolved
modules/evasion/windows/applocker_evasion_install_util.rb Outdated Show resolved Hide resolved
modules/evasion/windows/applocker_evasion_install_util.rb Outdated Show resolved Hide resolved
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## Intro

This module is designed to evade solutions such as software restriction policies and Applocker.
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software restriction policies

this is too vague

modules/evasion/windows/applocker_evasion_install_util.rb Outdated Show resolved Hide resolved
@NickTyrer
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Thanks @cbrnrd for the review.

@bcoles bcoles added the docs label Jun 6, 2019
@wchen-r7 wchen-r7 self-assigned this Jul 23, 2019
@wchen-r7 wchen-r7 merged commit 5a010e1 into rapid7:master Jul 23, 2019
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wchen-r7 commented Jul 23, 2019

Release Notes

The applocker_evasion_install_util module has been added to the framework. It is designed to evade software restriction policies and Applocker. The main vector for this bypass is to use the trusted binary InstallUtil.exe in executing user supplied code.

@NickTyrer NickTyrer deleted the applocker_evasion_install_util branch July 25, 2019 07:11
@tdoan-r7 tdoan-r7 added the rn-modules release notes for new or majorly enhanced modules label Aug 6, 2019
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7 participants