Куда я попал?
SECURITM это SGRC система, ? автоматизирующая процессы в службах информационной безопасности. SECURITM помогает построить и управлять ИСПДн, КИИ, ГИС, СМИБ/СУИБ, банковскими системами защиты.
А еще SECURITM это место для обмена опытом и наработками для служб безопасности.

System Firmware

The BIOS (Basic Input/Output System) and The Unified Extensible Firmware Interface (UEFI) or Extensible Firmware Interface (EFI) are examples of system firmware that operate as the software interface between the operating system and hardware of a computer. (Citation: Wikipedia BIOS) (Citation: Wikipedia UEFI) (Citation: About UEFI) System firmware like BIOS and (U)EFI underly the functionality of a computer and may be modified by an adversary to perform or assist in malicious activity. Capabilities exist to overwrite the system firmware, which may give sophisticated adversaries a means to install malicious firmware updates as a means of persistence on a system that may be difficult to detect.

ID: T1019
Tactic(s): Persistence
Platforms: Windows
Permissions Required: Administrator, SYSTEM
Version: 1.0
Created: 31 May 2017
Last Modified: 30 Mar 2020

Procedure Examples

Name Description
LoJax

LoJax is a UEFI BIOS rootkit deployed to persist remote access software on some targeted systems.(Citation: ESET LoJax Sept 2018)

Hacking Team UEFI Rootkit

Hacking Team UEFI Rootkit is a UEFI BIOS rootkit developed by the company Hacking Team to persist remote access software on some targeted systems.(Citation: TrendMicro Hacking Team UEFI)

Trojan.Mebromi

Trojan.Mebromi performs BIOS modification and can download and execute a file as well as protect itself from removal.(Citation: Ge 2011)

Mitigations

Mitigation Description
Update Software

Perform regular software updates to mitigate exploitation risk.

Boot Integrity

Use secure methods to boot a system and verify the integrity of the operating system and loading mechanisms.

Privileged Account Management

Manage the creation, modification, use, and permissions associated to privileged accounts, including SYSTEM and root.

System Firmware Mitigation

Prevent adversary access to privileged accounts or access necessary to perform this technique. Check the integrity of the existing BIOS or EFI to determine if it is vulnerable to modification. Patch the BIOS and EFI as necessary. Use Trusted Platform Module technology. (Citation: TCG Trusted Platform Module)

Detection

System firmware manipulation may be detected. (Citation: MITRE Trustworthy Firmware Measurement) Dump and inspect BIOS images on vulnerable systems and compare against known good images. (Citation: MITRE Copernicus) Analyze differences to determine if malicious changes have occurred. Log attempts to read/write to BIOS and compare against known patching behavior. Likewise, EFI modules can be collected and compared against a known-clean list of EFI executable binaries to detect potentially malicious modules. The CHIPSEC framework can be used for analysis to determine if firmware modifications have been performed. (Citation: McAfee CHIPSEC Blog) (Citation: Github CHIPSEC) (Citation: Intel HackingTeam UEFI Rootkit)

Связанные риски

Ничего не найдено

Каталоги

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