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Hide Artifacts:  Скрытые файлы и каталоги

ID Название
.001 Скрытые файлы и каталоги
.002 Скрытые пользователи
.003 Скрытое окно
.004 Атрибуты файла NTFS
.005 Скрытая файловая система
.006 Запуск виртуальной машины
.007 Сокрытие в скомпилированном VBA-коде
.008 Правила для сокрытия писем
.009 Разветвление ресурсов
.010 Подмена аргументов процесса
.011 Ignore Process Interrupts
.012 File/Path Exclusions

Adversaries may set files and directories to be hidden to evade detection mechanisms. To prevent normal users from accidentally changing special files on a system, most operating systems have the concept of a ‘hidden’ file. These files don’t show up when a user browses the file system with a GUI or when using normal commands on the command line. Users must explicitly ask to show the hidden files either via a series of Graphical User Interface (GUI) prompts or with command line switches (dir /a for Windows and ls –a for Linux and macOS). On Linux and Mac, users can mark specific files as hidden simply by putting a “.” as the first character in the file or folder name (Citation: Sofacy Komplex Trojan) (Citation: Antiquated Mac Malware). Files and folders that start with a period, ‘.’, are by default hidden from being viewed in the Finder application and standard command-line utilities like “ls”. Users must specifically change settings to have these files viewable. Files on macOS can also be marked with the UF_HIDDEN flag which prevents them from being seen in Finder.app, but still allows them to be seen in Terminal.app (Citation: WireLurker). On Windows, users can mark specific files as hidden by using the attrib.exe binary. Many applications create these hidden files and folders to store information so that it doesn’t clutter up the user’s workspace. For example, SSH utilities create a .ssh folder that’s hidden and contains the user’s known hosts and keys. Adversaries can use this to their advantage to hide files and folders anywhere on the system and evading a typical user or system analysis that does not incorporate investigation of hidden files.

ID: T1564.001
Относится к технике:  T1564
Тактика(-и): Defense Evasion
Платформы: Linux, macOS, Windows
Требуемые разрешения: User
Источники данных: Command: Command Execution, File: File Creation, File: File Metadata, Process: Process Creation
Версия: 1.0
Дата создания: 26 Feb 2020
Последнее изменение: 29 Mar 2020

Примеры процедур
Название Описание
QakBot

QakBot has placed its payload in hidden subdirectories.(Citation: Trend Micro Black Basta October 2022)
XCSSET

XCSSET uses a hidden folder named .xcassets and .git to embed itself in Xcode.(Citation: trendmicro xcsset xcode project 2020)
APT28

APT28 has saved files with hidden file attributes.(Citation: Talos Seduploader Oct 2017)(Citation: Talos Seduploader Oct 2017)
RedCurl

RedCurl added the “hidden” file attribute to original files, manipulating victims to click on malicious LNK files.(Citation: group-ib_redcurl1)(Citation: group-ib_redcurl2)
Cuckoo Stealer

Cuckoo Stealer has copied its binary and the victim's scraped password into a hidden folder in the `/Users` directory.(Citation: Kandji Cuckoo April 2024)(Citation: SentinelOne Cuckoo Stealer May 2024)
Clambling

Clambling has the ability to set its file attributes to hidden.(Citation: Trend Micro DRBControl February 2020)
LuminousMoth

LuminousMoth has used malware to store malicious binaries in hidden directories on victim's USB drives.(Citation: Kaspersky LuminousMoth July 2021)
WastedLocker

WastedLocker has copied a random file from the Windows System32 folder to the %APPDATA% location under a different hidden filename.(Citation: NCC Group WastedLocker June 2020)
PlugX

PlugX can modify the characteristics of folders to hide them from the compromised user.(Citation: Proofpoint TA416 Europe March 2022)
Lazarus Group

Lazarus Group has used a VBA Macro to set its file attributes to System and Hidden and has named files with a dot prefix to hide them from the Finder application.(Citation: McAfee Lazarus Resurfaces Feb 2018)(Citation: SentinelOne Lazarus macOS July 2020)(Citation: TrendMicro macOS Dacls May 2020)(Citation: Lazarus APT January 2022)
CoinTicker

CoinTicker downloads the following hidden files to evade detection and maintain persistence: /private/tmp/.info.enc, /private/tmp/.info.py, /private/tmp/.server.sh, ~/Library/LaunchAgents/.espl.plist, ~/Library/Containers/.[random string]/[random string].(Citation: CoinTicker 2019)
Mustang Panda

Mustang Panda's PlugX variant has created a hidden folder on USB drives named RECYCLE.BIN to store malicious executables and collected data.(Citation: Avira Mustang Panda January 2020)
PoetRAT

PoetRAT has the ability to hide and unhide files.(Citation: Talos PoetRAT April 2020)
AppleJeus

AppleJeus has added a leading . to plist filenames, unlisting them from the Finder app and default Terminal directory listings.(Citation: CISA AppleJeus Feb 2021)
OSX/Shlayer

OSX/Shlayer has executed a .command script from a hidden directory in a mounted DMG.(Citation: Carbon Black Shlayer Feb 2019)
Tropic Trooper

Tropic Trooper has created a hidden directory under C:\ProgramData\Apple\Updates\ and C:\Users\Public\Documents\Flash\.(Citation: TrendMicro Tropic Trooper Mar 2018)(Citation: TrendMicro Tropic Trooper May 2020)
ThiefQuest

ThiefQuest hides a copy of itself in the user's ~/Library directory by using a . at the beginning of the file name followed by 9 random characters.(Citation: wardle evilquest parti)
Rocke

Rocke downloaded a file "libprocesshider", which could hide files on the target system.(Citation: Talos Rocke August 2018)(Citation: Unit 42 Rocke January 2019)
LoudMiner

LoudMiner has set the attributes of the VirtualBox directory and VBoxVmService parent directory to "hidden".(Citation: ESET LoudMiner June 2019)
QuasarRAT

QuasarRAT has the ability to set file attributes to "hidden" to hide files from the compromised user's view in Windows File Explorer.(Citation: CISA AR18-352A Quasar RAT December 2018)
OSX_OCEANLOTUS.D

OSX_OCEANLOTUS.D sets the main loader file’s attributes to hidden.(Citation: TrendMicro MacOS April 2018)
InvisiMole

InvisiMole can create hidden system directories.(Citation: ESET InvisiMole June 2020)
FIN13

FIN13 has created hidden files and folders within a compromised Linux system `/tmp` directory. FIN13 also has used `attrib.exe` to hide gathered local host information.(Citation: Mandiant FIN13 Aug 2022)(Citation: Sygnia Elephant Beetle Jan 2022)
EnvyScout

EnvyScout can use hidden directories and files to hide malicious executables.(Citation: MSTIC Nobelium Toolset May 2021)
Imminent Monitor

Imminent Monitor has a dynamic debugging feature to set the file attribute to hidden.(Citation: QiAnXin APT-C-36 Feb2019)
ccf32

ccf32 has created a hidden directory on targeted systems, naming it after the current local time (year, month, and day).(Citation: Bitdefender FunnyDream Campaign November 2020)
Ixeshe

Ixeshe sets its own executable file's attributes to hidden.(Citation: Trend Micro IXESHE 2012)
MacSpy

MacSpy stores itself in ~/Library/.DS_Stores/ (Citation: alientvault macspy)
Transparent Tribe

Transparent Tribe can hide legitimate directories and replace them with malicious copies of the same name.(Citation: Kaspersky Transparent Tribe August 2020)
Okrum

Before exfiltration, Okrum's backdoor has used hidden files to store logs and outputs from backdoor commands.(Citation: ESET Okrum July 2019)
Agent Tesla

Agent Tesla has created hidden folders.(Citation: SentinelLabs Agent Tesla Aug 2020)
Carberp

Carberp has created a hidden file in the Startup folder of the current user.(Citation: Trusteer Carberp October 2010)
WannaCry

WannaCry uses attrib +h to make some of its files hidden.(Citation: LogRhythm WannaCry)
NETWIRE

NETWIRE can copy itself to and launch itself from hidden folders.(Citation: Red Canary NETWIRE January 2020)
HAFNIUM

HAFNIUM has hidden files on a compromised host.(Citation: Rapid7 HAFNIUM Mar 2021)
Lokibot

Lokibot has the ability to copy itself to a hidden file and directory.(Citation: Infoblox Lokibot January 2019)
iKitten

iKitten saves itself with a leading "." so that it's hidden from users by default.(Citation: objsee mac malware 2017)
SysUpdate

SysUpdate has the ability to set file attributes to hidden.(Citation: Trend Micro Iron Tiger April 2021)
FruitFly

FruitFly saves itself with a leading "." to make it a hidden file.(Citation: objsee mac malware 2017)
BackConfig

BackConfig has the ability to set folders or files to be hidden from the Windows Explorer default view.(Citation: Unit 42 BackConfig May 2020)
Attor

Attor can set attributes of log files and directories to HIDDEN, SYSTEM, ARCHIVE, or a combination of those.(Citation: ESET Attor Oct 2019)
APT32

APT32's macOS backdoor hides the clientID file via a chflags function.(Citation: ESET OceanLotus macOS April 2019)
COATHANGER

COATHANGER creates and installs itself to a hidden installation directory.(Citation: NCSC-NL COATHANGER Feb 2024)
DarkGate

DarkGate initial installation involves dropping several files to a hidden directory named after the victim machine name.(Citation: Ensilo Darkgate 2018)
Calisto

Calisto uses a hidden directory named .calisto to store data from the victim’s machine before exfiltration.(Citation: Securelist Calisto July 2018)(Citation: Symantec Calisto July 2018)
Explosive

Explosive has commonly set file and path attributes to hidden.(Citation: CheckPoint Volatile Cedar March 2015)
Micropsia

Micropsia creates a new hidden directory to store all components' outputs in a dedicated sub-folder for each.(Citation: Radware Micropsia July 2018)
Dacls

Dacls has had its payload named with a dot prefix to make it hidden from view in the Finder application.(Citation: SentinelOne Lazarus macOS July 2020)(Citation: TrendMicro macOS Dacls May 2020)
Rising Sun

Rising Sun can modify file attributes to hide files.(Citation: McAfee Sharpshooter December 2018)
Komplex

The Komplex payload is stored in a hidden directory at /Users/Shared/.local/kextd.(Citation: Sofacy Komplex Trojan)
SLOTHFULMEDIA

SLOTHFULMEDIA has been created with a hidden attribute to insure it's not visible to the victim.(Citation: CISA MAR SLOTHFULMEDIA October 2020)
Machete

Machete has the capability to exfiltrate stolen data to a hidden folder on a removable drive.(Citation: ESET Machete July 2019)

Обнаружение

Monitor the file system and shell commands for files being created with a leading "." and the Windows command-line use of attrib.exe to add the hidden attribute.

Ссылки

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