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Net

The Net utility is a component of the Windows operating system. It is used in command-line operations for control of users, groups, services, and network connections. [1]

Net has a great deal of functionality, [2] much of which is useful for an adversary, such as gathering system and network information for Discovery, moving laterally through SMB/Windows Admin Shares using net use commands, and interacting with services. The net1.exe utility is executed for certain functionality when net.exe is run and can be used directly in commands such as net1 user.

ID: S0039
ⓘ
Associated Software: net.exe
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Type: TOOL
ⓘ
Platforms: Windows
Contributors: David Ferguson, CyberSponse
Version: 2.6
Created: 31 May 2017
Last Modified: 01 February 2024
Enterprise Layer
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Techniques Used

Domain ID Name Use
Enterprise T1136 .001 创建账户: Local Account

The net user username \password commands in Net can be used to create a local account.[2]
.002 创建账户: Domain Account

The net user username \password \domain commands in Net can be used to create a domain account.[2]
Enterprise T1201 密码策略发现

The net accounts and net accounts /domain commands with Net can be used to obtain password policy information.[2]
Enterprise T1069 .001 权限组发现: Local Groups

Commands such as net group and net localgroup can be used in Net to gather information about and manipulate groups.[2]
.002 权限组发现: Domain Groups

Commands such as net group /domain can be used in Net to gather information about and manipulate groups.[2]
Enterprise T1070 .005 移除指标: Network Share Connection Removal

The net use \system\share /delete command can be used in Net to remove an established connection to a network share.[3]
Enterprise T1124 系统时间发现

The net time command can be used in Net to determine the local or remote system time.[4]
Enterprise T1569 .002 系统服务: Service Execution

The net start and net stop commands can be used in Net to execute or stop Windows services.[2]
Enterprise T1007 系统服务发现

The net start command can be used in Net to find information about Windows services.[2]
Enterprise T1049 系统网络连接发现

Commands such as net use and net session can be used in Net to gather information about network connections from a particular host.[2]
Enterprise T1135 网络共享发现

The net view \remotesystem and net share commands in Net can be used to find shared drives and directories on remote and local systems respectively.[2]
Enterprise T1087 .001 账号发现: Local Account

Commands under net user can be used in Net to gather information about and manipulate user accounts.[2]
.002 账号发现: Domain Account

Net commands used with the /domain flag can be used to gather information about and manipulate user accounts on the current domain.[5]
Enterprise T1098 .007 账号操控: Additional Local or Domain Groups

The net localgroup and net group commands in Net can be used to add existing users to local and domain groups.[6] [7]
Enterprise T1021 .002 远程服务: SMB/Windows Admin Shares

Lateral movement can be done with Net through net use commands to connect to the on remote systems.[2]
Enterprise T1018 远程系统发现

Commands such as net view can be used in Net to gather information about available remote systems.[2]

Groups That Use This Software

ID Name References
G0019 Naikon

[8][9]
G0059 Magic Hound

[10][11]
G0082 APT38

[12]
G0035 Dragonfly

[13]
G0009 Deep Panda

[14]
G0027 Threat Group-3390

[15]
G0049 OilRig

[16][17]
G0028 Threat Group-1314

[18]
G0007 APT28

[19]
G0096 APT41

[20]
G0045 menuPass

[21]
G0004 Ke3chang

[22][23]
G0065 Leviathan

[24]
G1023 APT5

[25]
G0071 Orangeworm

[26]
G0093 GALLIUM

[27]
G0018 admin@338

[28]
G1032 INC Ransom

[29]
G0114 Chimera

[30]
G0006 APT1

[31]
G0061 FIN8

[32]
G0092 TA505

[33]
G1022 ToddyCat

[34]
G0010 Turla

[35]
G0064 APT33

[36]
G0102 Wizard Spider

[37][38][39][40][41][42][43][44]
G0034 Sandworm Team

[45]
G0016 APT29

[46]
G0050 APT32

[47]
G1017 Volt Typhoon

[48][49]
G0060 BRONZE BUTLER

[50]

Campaigns

ID Name Description
C0026 C0026

[51]

References

  1. Microsoft. (2006, October 18). Net.exe Utility. Retrieved September 22, 2015.
  2. Savill, J. (1999, March 4). Net.exe reference. Retrieved September 22, 2015.
  3. Microsoft. (n.d.). Net Use. Retrieved November 25, 2016.
  4. Microsoft. (n.d.). Net time. Retrieved November 25, 2016.
  5. Microsoft. (2017, February 14). Net Commands On Windows Operating Systems. Retrieved March 19, 2020.
  6. Microsoft. (2016, August 31). Net Localgroup. Retrieved August 5, 2024.
  7. Microsoft. (2016, August 31). Net group. Retrieved August 5, 2024.
  8. Baumgartner, K., Golovkin, M.. (2015, May). The MsnMM Campaigns: The Earliest Naikon APT Campaigns. Retrieved April 10, 2019.
  9. Vrabie, V. (2021, April 23). NAIKON – Traces from a Military Cyber-Espionage Operation. Retrieved June 29, 2021.
  10. DFIR Report. (2022, March 21). APT35 Automates Initial Access Using ProxyShell. Retrieved May 25, 2022.
  11. DFIR Report. (2021, November 15). Exchange Exploit Leads to Domain Wide Ransomware. Retrieved January 5, 2023.
  12. FireEye. (2018, October 03). APT38: Un-usual Suspects. Retrieved November 6, 2018.
  13. US-CERT. (2018, March 16). Alert (TA18-074A): Russian Government Cyber Activity Targeting Energy and Other Critical Infrastructure Sectors. Retrieved June 6, 2018.
  14. Alperovitch, D. (2014, July 7). Deep in Thought: Chinese Targeting of National Security Think Tanks. Retrieved November 12, 2014.
  15. Counter Threat Unit Research Team. (2017, June 27). BRONZE UNION Cyberespionage Persists Despite Disclosures. Retrieved July 13, 2017.
  16. Falcone, R. and Lee, B.. (2016, May 26). The OilRig Campaign: Attacks on Saudi Arabian Organizations Deliver Helminth Backdoor. Retrieved May 3, 2017.
  17. Sardiwal, M, et al. (2017, December 7). New Targeted Attack in the Middle East by APT34, a Suspected Iranian Threat Group, Using CVE-2017-11882 Exploit. Retrieved December 20, 2017.
  18. Dell SecureWorks Counter Threat Unit Special Operations Team. (2015, May 28). Living off the Land. Retrieved January 26, 2016.
  19. NSA, CISA, FBI, NCSC. (2021, July). Russian GRU Conducting Global Brute Force Campaign to Compromise Enterprise and Cloud Environments. Retrieved July 26, 2021.
  20. Fraser, N., et al. (2019, August 7). Double DragonAPT41, a dual espionage and cyber crime operation APT41. Retrieved September 23, 2019.
  21. PwC and BAE Systems. (2017, April). Operation Cloud Hopper: Technical Annex. Retrieved April 13, 2017.
  22. Villeneuve, N., Bennett, J. T., Moran, N., Haq, T., Scott, M., & Geers, K. (2014). OPERATION “KE3CHANG”: Targeted Attacks Against Ministries of Foreign Affairs. Retrieved November 12, 2014.
  23. Smallridge, R. (2018, March 10). APT15 is alive and strong: An analysis of RoyalCli and RoyalDNS. Retrieved April 4, 2018.
  24. Plan, F., et al. (2019, March 4). APT40: Examining a China-Nexus Espionage Actor. Retrieved March 18, 2019.
  25. Perez, D. et al. (2021, May 27). Re-Checking Your Pulse: Updates on Chinese APT Actors Compromising Pulse Secure VPN Devices. Retrieved February 5, 2024.
  26. Symantec Security Response Attack Investigation Team. (2018, April 23). New Orangeworm attack group targets the healthcare sector in the U.S., Europe, and Asia. Retrieved May 8, 2018.
  1. Cybereason Nocturnus. (2019, June 25). Operation Soft Cell: A Worldwide Campaign Against Telecommunications Providers. Retrieved July 18, 2019.
  2. FireEye Threat Intelligence. (2015, December 1). China-based Cyber Threat Group Uses Dropbox for Malware Communications and Targets Hong Kong Media Outlets. Retrieved December 4, 2015.
  3. Carvey, H. (2024, May 1). LOLBin to INC Ransomware. Retrieved June 5, 2024.
  4. Jansen, W . (2021, January 12). Abusing cloud services to fly under the radar. Retrieved September 12, 2024.
  5. Mandiant. (n.d.). APT1 Exposing One of China’s Cyber Espionage Units. Retrieved July 18, 2016.
  6. Elovitz, S. & Ahl, I. (2016, August 18). Know Your Enemy: New Financially-Motivated & Spear-Phishing Group. Retrieved February 26, 2018.
  7. Hiroaki, H. and Lu, L. (2019, June 12). Shifting Tactics: Breaking Down TA505 Group’s Use of HTML, RATs and Other Techniques in Latest Campaigns. Retrieved May 29, 2020.
  8. Dedola, G. et al. (2023, October 12). ToddyCat: Keep calm and check logs. Retrieved January 3, 2024.
  9. Kaspersky Lab's Global Research and Analysis Team. (2014, August 7). The Epic Turla Operation: Solving some of the mysteries of Snake/Uroburos. Retrieved December 11, 2014.
  10. Security Response attack Investigation Team. (2019, March 27). Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.. Retrieved April 10, 2019.
  11. Hanel, A. (2019, January 10). Big Game Hunting with Ryuk: Another Lucrative Targeted Ransomware. Retrieved May 12, 2020.
  12. Brian Donohue, Katie Nickels, Paul Michaud, Adina Bodkins, Taylor Chapman, Tony Lambert, Jeff Felling, Kyle Rainey, Mike Haag, Matt Graeber, Aaron Didier.. (2020, October 29). A Bazar start: How one hospital thwarted a Ryuk ransomware outbreak. Retrieved October 30, 2020.
  13. Kimberly Goody, Jeremy Kennelly, Joshua Shilko, Steve Elovitz, Douglas Bienstock. (2020, October 28). Unhappy Hour Special: KEGTAP and SINGLEMALT With a Ransomware Chaser. Retrieved October 28, 2020.
  14. The DFIR Report. (2020, October 8). Ryuk’s Return. Retrieved October 9, 2020.
  15. The DFIR Report. (2020, November 5). Ryuk Speed Run, 2 Hours to Ransom. Retrieved November 6, 2020.
  16. The DFIR Report. (2020, October 18). Ryuk in 5 Hours. Retrieved October 19, 2020.
  17. Sean Gallagher, Peter Mackenzie, Elida Leite, Syed Shahram, Bill Kearney, Anand Aijan, Sivagnanam Gn, Suraj Mundalik. (2020, October 14). They’re back: inside a new Ryuk ransomware attack. Retrieved October 14, 2020.
  18. Shilko, J., et al. (2021, October 7). FIN12: The Prolific Ransomware Intrusion Threat Actor That Has Aggressively Pursued Healthcare Targets. Retrieved June 15, 2023.
  19. Joe Slowik. (2018, October 12). Anatomy of an Attack: Detecting and Defeating CRASHOVERRIDE. Retrieved December 18, 2020.
  20. CISA. (2020, July 16). MAR-10296782-1.v1 – SOREFANG. Retrieved September 29, 2020.
  21. Dahan, A. (2017). Operation Cobalt Kitty. Retrieved December 27, 2018.
  22. Counter Threat Unit Research Team. (2023, May 24). Chinese Cyberespionage Group BRONZE SILHOUETTE Targets U.S. Government and Defense Organizations. Retrieved July 27, 2023.
  23. CISA et al.. (2024, February 7). PRC State-Sponsored Actors Compromise and Maintain Persistent Access to U.S. Critical Infrastructure. Retrieved May 15, 2024.
  24. Counter Threat Unit Research Team. (2017, October 12). BRONZE BUTLER Targets Japanese Enterprises. Retrieved January 4, 2018.
  25. Hawley, S. et al. (2023, February 2). Turla: A Galaxy of Opportunity. Retrieved May 15, 2023.