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MITRE ATT&CK - Техника Изменение временных меток
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MITRE ATT&CK
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Изменение временных меток
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Indicator Removal:  Изменение временных меток

ID Название
.001 Очистка журналов событий Windows
.002 Очистка системных журналов Linux или Mac
.003 Очистка истории команд
.004 Удаление файлов
.005 Удаление подключений к общим сетевым ресурсам
.006 Изменение временных меток
.007 Очистка истории сетевых соединений и конфигураций
.008 Очистка почтового ящика
.009 Удаление индикаторов компрометации

Adversaries may modify file time attributes to hide new or changes to existing files. Timestomping is a technique that modifies the timestamps of a file (the modify, access, create, and change times), often to mimic files that are in the same folder. This is done, for example, on files that have been modified or created by the adversary so that they do not appear conspicuous to forensic investigators or file analysis tools. Timestomping may be used along with file name Masquerading to hide malware and tools.(Citation: WindowsIR Anti-Forensic Techniques)

ID: T1070.006
Относится к технике:  T1070
Тактика(-и): Defense Evasion
Платформы: Linux, macOS, Windows
Требуемые разрешения: root, SYSTEM, User
Источники данных: File: File Metadata, File: File Modification
Версия: 1.0
Дата создания: 31 Jan 2020
Последнее изменение: 29 Mar 2020

Примеры процедур
Название Описание
TAINTEDSCRIBE

TAINTEDSCRIBE can change the timestamp of specified filenames.(Citation: CISA MAR-10288834-2.v1 TAINTEDSCRIBE MAY 2020)
APT28

APT28 has performed timestomping on victim files.(Citation: Crowdstrike DNC June 2016)
Cyclops Blink

Cyclops Blink has the ability to use the Linux API function `utime` to change the timestamps of modified firmware update images.(Citation: NCSC Cyclops Blink February 2022)
Gazer

For early Gazer versions, the compilation timestamp was faked.(Citation: ESET Gazer Aug 2017)
Stuxnet

Stuxnet extracts and writes driver files that match the times of other legitimate files.(Citation: Symantec W.32 Stuxnet Dossier)
Bankshot

Bankshot modifies the time of a file as specified by the control server.(Citation: McAfee Bankshot)
FALLCHILL

FALLCHILL can modify file or directory timestamps.(Citation: US-CERT FALLCHILL Nov 2017)
OwaAuth

OwaAuth has a command to timestop a file or directory.(Citation: Dell TG-3390)
USBStealer

USBStealer sets the timestamps of its dropper files to the last-access and last-write timestamps of a standard Windows library chosen on the system.(Citation: ESET Sednit USBStealer 2014)
BitPaymer

BitPaymer can modify the timestamp of an executable so that it can be identified and restored by the decryption tool.(Citation: Crowdstrike Indrik November 2018)
Derusbi

The Derusbi malware supports timestomping.(Citation: Novetta-Axiom)(Citation: Fidelis Turbo)
Cobalt Strike

Cobalt Strike can timestomp any files or payloads placed on a target machine to help them blend in.(Citation: cobaltstrike manual)(Citation: Cobalt Strike Manual 4.3 November 2020)
OSX_OCEANLOTUS.D

OSX_OCEANLOTUS.D can use the touch -t command to change timestamps.(Citation: Trend Micro MacOS Backdoor November 2020)(Citation: 20 macOS Common Tools and Techniques)
PowerStallion

PowerStallion modifies the MAC times of its local log files to match that of the victim's desktop.ini file.(Citation: ESET Turla PowerShell May 2019)
APT29

APT29 modified timestamps of backdoors to match legitimate Windows files.(Citation: Microsoft Deep Dive Solorigate January 2021)
SEASHARPEE

SEASHARPEE can timestomp files on victims using a Web shell.(Citation: FireEye APT34 Webinar Dec 2017)
Elise

Elise performs timestomping of a CAB file it creates.(Citation: Lotus Blossom Jun 2015)
APT38

APT38 has modified data timestamps to mimic files that are in the same folder on a compromised host.(Citation: CISA AA20-239A BeagleBoyz August 2020)
APT32

APT32 has used scheduled task raw XML with a backdated timestamp of June 2, 2016. The group has also set the creation time of the files dropped by the second stage of the exploit to match the creation time of kernel32.dll. Additionally, APT32 has used a random value to modify the timestamp of the file storing the clientID.(Citation: FireEye APT32 May 2017)(Citation: ESET OceanLotus Mar 2019)(Citation: ESET OceanLotus macOS April 2019)
Kimsuky

Kimsuky has manipulated timestamps for creation or compilation dates to defeat anti-forensics.(Citation: Cybereason Kimsuky November 2020)
KeyBoy

KeyBoy time-stomped its DLL in order to evade detection.(Citation: PWC KeyBoys Feb 2017)
EVILNUM

EVILNUM has changed the creation date of files.(Citation: Prevailion EvilNum May 2020)
BLINDINGCAN

BLINDINGCAN has modified file and directory timestamps.(Citation: US-CERT BLINDINGCAN Aug 2020)(Citation: NHS UK BLINDINGCAN Aug 2020)
MacMa

MacMa has the capability to create and modify file timestamps.(Citation: ESET DazzleSpy Jan 2022)
Kobalos

Kobalos can modify timestamps of replaced files, such as ssh with the added credential stealer or sshd used to deploy Kobalos.(Citation: ESET Kobalos Jan 2021)

PingPull

PingPull has the ability to timestomp a file.(Citation: Unit 42 PingPull Jun 2022)
Attor

Attor has manipulated the time of last access to files and registry keys after they have been created or modified.(Citation: ESET Attor Oct 2019)
China Chopper

China Chopper's server component can change the timestamp of files.(Citation: FireEye Periscope March 2018)(Citation: Lee 2013)(Citation: NCSC Joint Report Public Tools)
InvisiMole

InvisiMole samples were timestomped by the authors by setting the PE timestamps to all zero values. InvisiMole also has a built-in command to modify file times.(Citation: ESET InvisiMole June 2018)
Gelsemium

Gelsemium has the ability to perform timestomping of files on targeted systems.(Citation: ESET Gelsemium June 2021)
Winnti for Windows

Winnti for Windows can set the timestamps for its worker and service components to match that of cmd.exe.(Citation: Novetta Winnti April 2015)
TEMP.Veles

TEMP.Veles used timestomping to modify the $STANDARD_INFORMATION attribute on tools.(Citation: FireEye TRITON 2019)
Chimera

Chimera has used a Windows version of the Linux touch command to modify the date and time stamp on DLLs.(Citation: NCC Group Chimera January 2021)
TDTESS

After creating a new service for persistence, TDTESS sets the file creation time for the service to the creation time of the victim's legitimate svchost.exe file.(Citation: ClearSky Wilted Tulip July 2017)
Lazarus Group

Several Lazarus Group malware families use timestomping, including modifying the last write timestamp of a specified Registry key to a random date, as well as copying the timestamp for legitimate .exe files (such as calc.exe or mspaint.exe) to its dropped files.(Citation: Novetta Blockbuster)(Citation: Novetta Blockbuster Destructive Malware)(Citation: Novetta Blockbuster Loaders)(Citation: McAfee GhostSecret)
3PARA RAT

3PARA RAT has a command to set certain attributes such as creation/modification timestamps on files.(Citation: CrowdStrike Putter Panda)
POSHSPY

POSHSPY modifies timestamps of all downloaded executables to match a randomly selected file created prior to 2013.(Citation: FireEye POSHSPY April 2017)
Psylo

Psylo has a command to conduct timestomping by setting a specified file’s timestamps to match those of a system file in the System32 directory.(Citation: Scarlet Mimic Jan 2016)
Cobalt Strike

Cobalt Strike will timestomp any files or payloads placed on a target machine to help them blend in.(Citation: cobaltstrike manual)
Misdat

Many Misdat samples were programmed using Borland Delphi, which will mangle the default PE compile timestamp of a file.(Citation: Cylance Dust Storm)
Shamoon

Shamoon can change the modified time for files to evade forensic detection.(Citation: McAfee Shamoon December 2018)

Empire

Empire can timestomp any files or payloads placed on a target machine to help them blend in.(Citation: Github PowerShell Empire)
UNC2452

UNC2452 modified timestamps of backdoors to match legitimate Windows files.(Citation: Microsoft Deep Dive Solorigate January 2021)
Rocke

Rocke has changed the time stamp of certain files.(Citation: Anomali Rocke March 2019)

Контрмеры
Контрмера Описание
Timestomp Mitigation

Mitigation of timestomping specifically is likely difficult. Efforts should be focused on preventing potentially malicious software from running. Identify and block potentially malicious software that may contain functionality to perform timestomping by using whitelisting (Citation: Beechey 2010) tools like AppLocker (Citation: Windows Commands JPCERT) (Citation: NSA MS AppLocker) or Software Restriction Policies (Citation: Corio 2008) where appropriate. (Citation: TechNet Applocker vs SRP)

Обнаружение

Forensic techniques exist to detect aspects of files that have had their timestamps modified. (Citation: WindowsIR Anti-Forensic Techniques) It may be possible to detect timestomping using file modification monitoring that collects information on file handle opens and can compare timestamp values.

Ссылки

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