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.

Proxy:  Внутренний прокси-сервер

Adversaries may use an internal proxy to direct command and control traffic between two or more systems in a compromised environment. Many tools exist that enable traffic redirection through proxies or port redirection, including HTRAN, ZXProxy, and ZXPortMap. (Citation: Trend Micro APT Attack Tools) Adversaries use internal proxies to manage command and control communications inside a compromised environment, to reduce the number of simultaneous outbound network connections, to provide resiliency in the face of connection loss, or to ride over existing trusted communications paths between infected systems to avoid suspicion. Internal proxy connections may use common peer-to-peer (p2p) networking protocols, such as SMB, to better blend in with the environment. By using a compromised internal system as a proxy, adversaries may conceal the true destination of C2 traffic while reducing the need for numerous connections to external systems.

ID: T1090.001
Относится к технике:  T1090
Тактика(-и): Command and Control
Платформы: Linux, macOS, Network, Windows
Источники данных: Network Traffic: Network Connection Creation, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Версия: 1.1
Дата создания: 14 Mar 2020
Последнее изменение: 07 Mar 2024

Примеры процедур

Название Описание
Pay2Key

Pay2Key has designated machines in the compromised network to serve as reverse proxy pivot points to channel communications with C2.(Citation: ClearkSky Fox Kitten February 2020)(Citation: Check Point Pay2Key November 2020)

Duqu

Duqu can be configured to have commands relayed over a peer-to-peer network of infected hosts if some of the hosts do not have Internet access.(Citation: Symantec W32.Duqu)

During the SolarWinds Compromise, APT29 used SSH port forwarding capabilities on public-facing systems, and configured at least one instance of Cobalt Strike to use a network pipe over SMB.(Citation: CrowdStrike StellarParticle January 2022)(Citation: Symantec RAINDROP January 2021)

CHOPSTICK

CHOPSTICK used a proxy server between victims and the C2 server.(Citation: ESET Sednit Part 2)

FIN13

FIN13 has utilized a proxy tool to communicate between compromised assets.(Citation: Sygnia Elephant Beetle Jan 2022)

Drovorub

Drovorub can use a port forwarding rule on its agent module to relay network traffic through the client module to a remote host on the same network.(Citation: NSA/FBI Drovorub August 2020)

Cobalt Strike

Cobalt Strike can be configured to have commands relayed over a peer-to-peer network of infected hosts. This can be used to limit the number of egress points, or provide access to a host without direct internet access.(Citation: cobaltstrike manual)(Citation: Cobalt Strike Manual 4.3 November 2020)

Higaisa

Higaisa discovered system proxy settings and used them if available.(Citation: Zscaler Higaisa 2020)

Mafalda

Mafalda can create a named pipe to listen for and send data to a named pipe-based C2 server.(Citation: SentinelLabs Metador Technical Appendix Sept 2022)

Mythic

Mythic can leverage a peer-to-peer C2 profile between agents.(Citation: Mythc Documentation)

Winnti for Windows

The Winnti for Windows HTTP/S C2 mode can make use of a local proxy.(Citation: Novetta Winnti April 2015)

Strider

Strider has used local servers with both local network and Internet access to act as internal proxy nodes to exfiltrate data from other parts of the network without direct Internet access.(Citation: Kaspersky ProjectSauron Blog)

MiniDuke

MiniDuke can can use a named pipe to forward communications from one compromised machine with internet access to other compromised machines.(Citation: ESET Dukes October 2019)

FatDuke

FatDuke can used pipes to connect machines with restricted internet access to remote machines via other infected hosts.(Citation: ESET Dukes October 2019)

Kazuar

Kazuar has used internal nodes on the compromised network for C2 communications.(Citation: Accenture HyperStack October 2020)

BACKSPACE

The "ZJ" variant of BACKSPACE allows "ZJ link" infections with Internet access to relay traffic from "ZJ listen" to a command server.(Citation: FireEye APT30)

Volt Typhoon

Volt Typhoon has used the built-in netsh `port proxy` command to create proxies on compromised systems to facilitate access.(Citation: Microsoft Volt Typhoon May 2023)(Citation: CISA AA24-038A PRC Critical Infrastructure February 2024)

APT29

APT29 has used SSH port forwarding capabilities on public-facing systems, and configured at least one instance of Cobalt Strike to use a network pipe over SMB during the 2020 SolarWinds intrusion.(Citation: Symantec RAINDROP January 2021)(Citation: CrowdStrike StellarParticle January 2022)

Ninja

Ninja can proxy C2 communications including to and from internal agents without internet connectivity.(Citation: Kaspersky ToddyCat June 2022)(Citation: Kaspersky ToddyCat Check Logs October 2023)

Turla

Turla has compromised internal network systems to act as a proxy to forward traffic to C2.(Citation: Talos TinyTurla September 2021)

InvisiMole

InvisiMole can function as a proxy to create a server that relays communication between the client and C&C server, or between two clients.(Citation: ESET InvisiMole June 2018)

Lazarus Group

Lazarus Group has used a compromised router to serve as a proxy between a victim network's corporate and restricted segments.(Citation: Kaspersky ThreatNeedle Feb 2021)

During Operation Wocao, threat actors proxied traffic through multiple infected systems.(Citation: FoxIT Wocao December 2019)

Operation Wocao

Operation Wocao can proxy traffic through multiple infected systems.(Citation: FoxIT Wocao December 2019)

metaMain

metaMain can create a named pipe to listen for and send data to a named pipe-based C2 server.(Citation: SentinelLabs Metador Technical Appendix Sept 2022)

Cobalt Strike

Cobalt Strike can be configured to have commands relayed over a peer-to-peer network of infected hosts. This can be used to limit the number of egress points, or provide access to a host without direct internet access.(Citation: cobaltstrike manual)

Hikit

Hikit supports peer connections.(Citation: Novetta-Axiom)

APT39

APT39 used custom tools to create SOCK5 and custom protocol proxies between infected hosts.(Citation: FireEye APT39 Jan 2019)(Citation: BitDefender Chafer May 2020)

Stuxnet

Stuxnet installs an RPC server for P2P communications.(Citation: Nicolas Falliere, Liam O Murchu, Eric Chien February 2011)

UNC2452

UNC2452 configured at least one instance of Cobalt Strike to use a network pipe over SMB during the 2020 SolarWinds intrusion.(Citation: Symantec RAINDROP January 2021)

Контрмеры

Контрмера Описание
Network Intrusion Prevention

Use intrusion detection signatures to block traffic at network boundaries.

Обнаружение

Analyze network data for uncommon data flows between clients that should not or often do not communicate with one another. Processes utilizing the network that do not normally have network communication or have never been seen before are suspicious. Analyze packet contents to detect communications that do not follow the expected protocol behavior for the port that is being used.(Citation: University of Birmingham C2)

Ссылки

  1. CrowdStrike. (2022, January 27). Early Bird Catches the Wormhole: Observations from the StellarParticle Campaign. Retrieved February 7, 2022.
  2. Symantec Threat Hunter Team. (2021, January 18). Raindrop: New Malware Discovered in SolarWinds Investigation. Retrieved January 19, 2021.
  3. Dantzig, M. v., Schamper, E. (2019, December 19). Operation Wocao: Shining a light on one of China’s hidden hacking groups. Retrieved October 8, 2020.
  4. Strategic Cyber LLC. (2017, March 14). Cobalt Strike Manual. Retrieved May 24, 2017.
  5. Wilhoit, K. (2013, March 4). In-Depth Look: APT Attack Tools of the Trade. Retrieved December 2, 2015.
  6. Gardiner, J., Cova, M., Nagaraja, S. (2014, February). Command & Control Understanding, Denying and Detecting. Retrieved April 20, 2016.
  7. Check Point. (2020, November 6). Ransomware Alert: Pay2Key. Retrieved January 4, 2021.
  8. ClearSky. (2020, February 16). Fox Kitten – Widespread Iranian Espionage-Offensive Campaign. Retrieved December 21, 2020.
  9. Symantec Security Response. (2011, November). W32.Duqu: The precursor to the next Stuxnet. Retrieved September 17, 2015.
  10. ESET. (2016, October). En Route with Sednit - Part 2: Observing the Comings and Goings. Retrieved November 21, 2016.
  11. Sygnia Incident Response Team. (2022, January 5). TG2003: ELEPHANT BEETLE UNCOVERING AN ORGANIZED FINANCIAL-THEFT OPERATION. Retrieved February 9, 2023.
  12. NSA/FBI. (2020, August). Russian GRU 85th GTsSS Deploys Previously Undisclosed Drovorub Malware. Retrieved August 25, 2020.
  13. Strategic Cyber LLC. (2020, November 5). Cobalt Strike: Advanced Threat Tactics for Penetration Testers. Retrieved April 13, 2021.
  14. Strategic Cyber LLC. (2017, March 14). Cobalt Strike Manual. Retrieved May 24, 2017.
  15. Singh, S. Singh, A. (2020, June 11). The Return on the Higaisa APT. Retrieved March 2, 2021.
  16. SentinelLabs. (2022, September 22). Metador Technical Appendix. Retrieved April 4, 2023.
  17. Thomas, C. (n.d.). Mythc Documentation. Retrieved March 25, 2022.
  18. Novetta Threat Research Group. (2015, April 7). Winnti Analysis. Retrieved February 8, 2017.
  19. Kaspersky Lab's Global Research & Analysis Team. (2016, August 8). ProjectSauron: top level cyber-espionage platform covertly extracts encrypted government comms. Retrieved August 17, 2016.
  20. Faou, M., Tartare, M., Dupuy, T. (2019, October). OPERATION GHOST. Retrieved September 23, 2020.
  21. Accenture. (2020, October). Turla uses HyperStack, Carbon, and Kazuar to compromise government entity. Retrieved December 2, 2020.
  22. FireEye Labs. (2015, April). APT30 AND THE MECHANICS OF A LONG-RUNNING CYBER ESPIONAGE OPERATION. Retrieved May 1, 2015.
  23. Microsoft Threat Intelligence. (2023, May 24). Volt Typhoon targets US critical infrastructure with living-off-the-land techniques. Retrieved July 27, 2023.
  24. CISA et al.. (2024, February 7). PRC State-Sponsored Actors Compromise and Maintain Persistent Access to U.S. Critical Infrastructure. Retrieved May 15, 2024.
  25. Dedola, G. et al. (2023, October 12). ToddyCat: Keep calm and check logs. Retrieved January 3, 2024.
  26. Dedola, G. (2022, June 21). APT ToddyCat. Retrieved January 3, 2024.
  27. Cisco Talos. (2021, September 21). TinyTurla - Turla deploys new malware to keep a secret backdoor on victim machines. Retrieved December 2, 2021.
  28. Hromcová, Z. (2018, June 07). InvisiMole: Surprisingly equipped spyware, undercover since 2013. Retrieved July 10, 2018.
  29. Vyacheslav Kopeytsev and Seongsu Park. (2021, February 25). Lazarus targets defense industry with ThreatNeedle. Retrieved October 27, 2021.
  30. Dantzig, M. v., Schamper, E. (2019, December 19). Operation Wocao: Shining a light on one of China’s hidden hacking groups. Retrieved October 8, 2020.
  31. Novetta. (n.d.). Operation SMN: Axiom Threat Actor Group Report. Retrieved November 12, 2014.
  32. Rusu, B. (2020, May 21). Iranian Chafer APT Targeted Air Transportation and Government in Kuwait and Saudi Arabia. Retrieved May 22, 2020.
  33. Hawley et al. (2019, January 29). APT39: An Iranian Cyber Espionage Group Focused on Personal Information. Retrieved February 19, 2019.
  34. Nicolas Falliere, Liam O Murchu, Eric Chien 2011, February W32.Stuxnet Dossier (Version 1.4) Retrieved. 2017/09/22

Связанные риски

Ничего не найдено

Каталоги

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