Ensure 'Configure Attack Surface Reduction rules: Set the state for each ASR rule' is set to 'b2b3f03d-6a65-4f7b-a9c7- 1c7ef74a9ba4:1'

VisokaNivo 1Automatskadefender

Opis

With this rule, admins can prevent unsigned or untrusted executable files from running from USB removable drives, including SD cards. Blocked file types include executable files (such as .exe, .dll, or .scr). Rule ID and name: - b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 (Block untrusted and unsigned processes that run from USB) The recommended state for this setting is: b2b3f03d-6a65-4f7b-a9c7- 1c7ef74a9ba4:1 (Block). Rationale: Attack surface reduction helps prevent actions and apps that are typically used by exploit-seeking malware to infect machines. Audit reads the Group Policy registry value and prints 'compliant', 'unset' (policy not configured, reported as FAIL) or the non-compliant value. Registry value: HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Windows Defender Exploit Guard\ASR\Rules:b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 (REG_SZ); compliant when it is 1.

Kako se proverava

Metod provere: Windows registar

registry

$v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Windows Defender Exploit Guard\ASR\Rules' -Name 'b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4' -ErrorAction SilentlyContinue).'b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4'; if ($null -eq $v) { 'unset' } elseif (($null -ne $v -and @('1') -contains "$v")) { 'compliant' } else { "non-compliant: $v" }

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Configure through Group Policy: Computer Configuration\Policies\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Attack Surface Reduction\Configure Attack Surface Reduction rules: Set the state for each ASR rule = b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 with a value of 1. Test in audit mode (2) first. Local alternative (writes Defender preferences, not the Group Policy value this audit reads): Add-MpPreference -AttackSurfaceReductionRules_Ids b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 -AttackSurfaceReductionRules_Actions 1

Svojstva

Operativni sistemi: Bilo koji
Oznake: defenderantiviruscis-l1
Referenca: CIS Microsoft Defender Antivirus Benchmark v1.0.0 - 1.6.1.15 Ensure 'Configure Attack Surface Reduction rules: Set the state for each ASR rule' is set to 'b2b3f03d-6a65-4f7b-a9c7- 1c7ef74a9ba4:1'

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target defender