t1070-005-network-share-connection-removal

name	T1070.005_network-share-connection-removal
description	Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation.
category	configuration
version	18.1
author	cyberstrike-official
tags	["mitre-attack","enterprise","t1070.005","defense-evasion","windows","sub-technique"]
technique_id	T1070.005
tactic	defense-evasion
all_tactics	["defense-evasion"]
platforms	["Windows"]
mitre_url	https://attack.mitre.org/techniques/T1070/005
tech_stack	["windows"]
cwe_ids	["CWE-693"]
chains_with	["T1070","T1070.001","T1070.002","T1070.003","T1070.004","T1070.006","T1070.007","T1070.008","T1070.009","T1070.010"]
prerequisites	["T1070"]
severity_boost	{"T1070":"Chain with T1070 for deeper attack path","T1070.001":"Chain with T1070.001 for deeper attack path","T1070.002":"Chain with T1070.002 for deeper attack path"}

T1070.005 Network Share Connection Removal

Sub-technique of: T1070

High-Level Description

Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation. Windows shared drive and SMB/Windows Admin Shares connections can be removed when no longer needed. Net is an example utility that can be used to remove network share connections with the net use \system\share /delete command.

Kill Chain Phase

• Defense Evasion (TA0005)

Platforms: Windows

What to Check

• Identify if Network Share Connection Removal technique is applicable to target environment
• Check Windows systems for indicators of Network Share Connection Removal
• Assess detection coverage (1 detection strategies)

How to Test

Atomic Red Team Tests

The following tests are from Atomic Red Team and provide actionable ways to test this technique:

Atomic Test 1: Add Network Share

Add a Network Share utilizing the command_prompt

Supported Platforms: windows

net use c: #{share_name}
net share test=#{share_name} /REMARK:"test share" /CACHE:No

Atomic Test 2: Remove Network Share

Removes a Network Share utilizing the command_prompt

Supported Platforms: windows

net share #{share_name} /delete

Atomic Test 3: Remove Network Share PowerShell

Removes a Network Share utilizing PowerShell

Supported Platforms: windows

Remove-SmbShare -Name #{share_name}
Remove-FileShare -Name #{share_name}

Atomic Test 4: Disable Administrative Share Creation at Startup

Administrative shares are hidden network shares created by Microsoft’s Windows NT operating systems that grant system administrators remote access to every disk volume on a network-connected system. These shares are automatically created at started unless they have been purposefully disabled as is done in this Atomic test. As Microsoft puts it, "Missing administrative shares typically indicate that the computer in question has been compromised by malicious software."