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.

Задания BITS

Adversaries may abuse BITS jobs to persistently execute code and perform various background tasks. Windows Background Intelligent Transfer Service (BITS) is a low-bandwidth, asynchronous file transfer mechanism exposed through Component Object Model (COM).(Citation: Microsoft COM)(Citation: Microsoft BITS) BITS is commonly used by updaters, messengers, and other applications preferred to operate in the background (using available idle bandwidth) without interrupting other networked applications. File transfer tasks are implemented as BITS jobs, which contain a queue of one or more file operations. The interface to create and manage BITS jobs is accessible through PowerShell and the BITSAdmin tool.(Citation: Microsoft BITS)(Citation: Microsoft BITSAdmin) Adversaries may abuse BITS to download (e.g. Ingress Tool Transfer), execute, and even clean up after running malicious code (e.g. Indicator Removal). BITS tasks are self-contained in the BITS job database, without new files or registry modifications, and often permitted by host firewalls.(Citation: CTU BITS Malware June 2016)(Citation: Mondok Windows PiggyBack BITS May 2007)(Citation: Symantec BITS May 2007) BITS enabled execution may also enable persistence by creating long-standing jobs (the default maximum lifetime is 90 days and extendable) or invoking an arbitrary program when a job completes or errors (including after system reboots).(Citation: PaloAlto UBoatRAT Nov 2017)(Citation: CTU BITS Malware June 2016) BITS upload functionalities can also be used to perform Exfiltration Over Alternative Protocol.(Citation: CTU BITS Malware June 2016)

ID: T1197
Тактика(-и): Defense Evasion, Persistence
Платформы: Windows
Источники данных: Command: Command Execution, Network Traffic: Network Connection Creation, Process: Process Creation, Service: Service Metadata
Версия: 1.3
Дата создания: 18 Apr 2018
Последнее изменение: 14 Sep 2022

Примеры процедур

Название Описание

MarkiRAT can use BITS Utility to connect with the C2 server.(Citation: Kaspersky Ferocious Kitten Jun 2021)


Patchwork has used BITS jobs to download malicious payloads.(Citation: Unit 42 BackConfig May 2020)


Bazar has been downloaded via Windows BITS functionality.(Citation: NCC Group Team9 June 2020)

Cobalt Strike

Cobalt Strike can download a hosted "beacon" payload using BITSAdmin.(Citation: CobaltStrike Scripted Web Delivery)(Citation: Talos Cobalt Strike September 2020)(Citation: Cobalt Strike Manual 4.3 November 2020)


Egregor has used BITSadmin to download and execute malicious DLLs.(Citation: Intrinsec Egregor Nov 2020)

Cobalt Strike

Cobalt Strike can download a hosted "beacon" payload using BITSAdmin.(Citation: CobaltStrike Scripted Web Delivery)


A JPIN variant downloads the backdoor payload via the BITS service.(Citation: Microsoft PLATINUM April 2016)


UBoatRAT takes advantage of the /SetNotifyCmdLine option in BITSAdmin to ensure it stays running on a system to maintain persistence.(Citation: PaloAlto UBoatRAT Nov 2017)


ProLock can use BITS jobs to download its malicious payload.(Citation: Group IB Ransomware September 2020)


Leviathan has used BITSAdmin to download additional tools.(Citation: FireEye Periscope March 2018)


APT39 has used the BITS protocol to exfiltrate stolen data from a compromised host.(Citation: FBI FLASH APT39 September 2020)


BITSAdmin can be used to create BITS Jobs to launch a malicious process.(Citation: TrendMicro Tropic Trooper Mar 2018)


APT41 used BITSAdmin to download and install payloads.(Citation: FireEye APT41 March 2020)(Citation: Crowdstrike GTR2020 Mar 2020)


Контрмера Описание
User Account Management

Manage the creation, modification, use, and permissions associated to user accounts.

BITS Jobs Mitigation

This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of operating system design features. For example, disabling all BITS functionality will likely have unintended side effects, such as preventing legitimate software patching and updating. Efforts should be focused on preventing adversary tools from running earlier in the chain of activity and on identification of subsequent malicious behavior. (Citation: Mondok Windows PiggyBack BITS May 2007) Modify network and/or host firewall rules, as well as other network controls, to only allow legitimate BITS traffic. Consider limiting access to the BITS interface to specific users or groups. (Citation: Symantec BITS May 2007) Consider reducing the default BITS job lifetime in Group Policy or by editing the JobInactivityTimeout and MaxDownloadTime Registry values in HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\BITS. (Citation: Microsoft BITS)

Filter Network Traffic

Use network appliances to filter ingress or egress traffic and perform protocol-based filtering. Configure software on endpoints to filter network traffic.

Operating System Configuration

Make configuration changes related to the operating system or a common feature of the operating system that result in system hardening against techniques.


BITS runs as a service and its status can be checked with the Sc query utility (sc query bits).(Citation: Microsoft Issues with BITS July 2011) Active BITS tasks can be enumerated using the BITSAdmin tool (bitsadmin /list /allusers /verbose).(Citation: Microsoft BITS) Monitor usage of the BITSAdmin tool (especially the ‘Transfer’, 'Create', 'AddFile', 'SetNotifyFlags', 'SetNotifyCmdLine', 'SetMinRetryDelay', 'SetCustomHeaders', and 'Resume' command options)(Citation: Microsoft BITS) Admin logs, PowerShell logs, and the Windows Event log for BITS activity.(Citation: Elastic - Hunting for Persistence Part 1) Also consider investigating more detailed information about jobs by parsing the BITS job database.(Citation: CTU BITS Malware June 2016) Monitor and analyze network activity generated by BITS. BITS jobs use HTTP(S) and SMB for remote connections and are tethered to the creating user and will only function when that user is logged on (this rule applies even if a user attaches the job to a service account).(Citation: Microsoft BITS)


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