System Services: Service Execution
Adversaries may abuse the Windows service control manager to execute malicious commands or payloads. The Windows service control manager (
services.exe) is an interface to manage and manipulate services. The service control manager is accessible to users via GUI components as well as system utilities such as
sc.exe and Net.
Adversaries may leverage these mechanisms to execute malicious content. This can be done by either executing a new or modified service. This technique is the execution used in conjunction with Windows Service during service persistence or privilege escalation.
|Privileged Account Management||
Ensure that permissions disallow services that run at a higher permissions level from being created or interacted with by a user with a lower permission level.
|Restrict File and Directory Permissions||
Ensure that high permission level service binaries cannot be replaced or modified by users with a lower permission level.
Changes to service Registry entries and command line invocation of tools capable of modifying services that do not correlate with known software, patch cycles, etc., may be suspicious. If a service is used only to execute a binary or script and not to persist, then it will likely be changed back to its original form shortly after the service is restarted so the service is not left broken, as is the case with the common administrator tool PsExec.
- Microsoft. (2018, May 31). Service Control Manager. Retrieved March 28, 2020.
- Russinovich, M. (2014, May 2). Windows Sysinternals PsExec v2.11. Retrieved May 13, 2015.
- Savill, J. (1999, March 4). Net.exe reference. Retrieved September 22, 2015.
- Magius, J., et al. (2017, July 19). Koadic. Retrieved June 18, 2018.
- Nicolas Verdier. (n.d.). Retrieved January 29, 2018.
- Rayaprolu, A.. (2011, April 12). xCmd an Alternative to PsExec. Retrieved August 10, 2016.
- Strategic Cyber LLC. (2017, March 14). Cobalt Strike Manual. Retrieved May 24, 2017.
- Cobalt Strike. (2017, December 8). Tactics, Techniques, and Procedures. Retrieved December 20, 2017.
- Prakash, T. (2017, June 21). Run commands on Windows system remotely using Winexe. Retrieved January 22, 2018.
- SecureAuth. (n.d.). Retrieved January 15, 2019.
- Schroeder, W., Warner, J., Nelson, M. (n.d.). Github PowerShellEmpire. Retrieved April 28, 2016.
- Nettitude. (2018, July 23). Python Server for PoshC2. Retrieved April 23, 2019.
- Symantec Security Response. (2016, September 6). Buckeye cyberespionage group shifts gaze from US to Hong Kong. Retrieved September 26, 2016.
- Sherstobitoff, R., Malhotra, A. (2018, April 24). Analyzing Operation GhostSecret: Attack Seeks to Steal Data Worldwide. Retrieved May 16, 2018.
- Fitzgerald, P. (2010, January 26). How Trojan.Hydraq Stays On Your Computer. Retrieved February 22, 2018.
- Anthe, C. et al. (2016, December 14). Microsoft Security Intelligence Report Volume 21. Retrieved November 27, 2017.
- Microsoft. (2017, November 9). Backdoor:Win32/Wingbird.A!dha. Retrieved November 27, 2017.
- Cylance. (2014, December). Operation Cleaver. Retrieved September 14, 2017.
- Falcone, R.. (2016, November 30). Shamoon 2: Return of the Disttrack Wiper. Retrieved January 11, 2017.
- Roccia, T., Saavedra-Morales, J., Beek, C.. (2018, December 19). Shamoon Attackers Employ New Tool Kit to Wipe Infected Systems. Retrieved May 29, 2020.
- Lee, B. Grunzweig, J. (2015, December 22). BBSRAT Attacks Targeting Russian Organizations Linked to Roaming Tiger. Retrieved August 19, 2016.
- Mercer, W. and Rascagneres, P. (2018, February 12). Olympic Destroyer Takes Aim At Winter Olympics. Retrieved March 14, 2019.
- Chiu, A. (2016, June 27). New Ransomware Variant "Nyetya" Compromises Systems Worldwide. Retrieved March 26, 2019.
- US-CERT. (2017, July 1). Alert (TA17-181A): Petya Ransomware. Retrieved March 15, 2019.
- US-CERT. (2019, April 10). MAR-10135536-8 – North Korean Trojan: HOPLIGHT. Retrieved April 19, 2019.
- Falcone, R. and Lancaster, T.. (2019, May 28). Emissary Panda Attacks Middle East Government Sharepoint Servers. Retrieved July 9, 2019.
- Hromcova, Z. (2019, October). AT COMMANDS, TOR-BASED COMMUNICATIONS: MEET ATTOR, A FANTASY CREATURE AND ALSO A SPY PLATFORM. Retrieved May 6, 2020.
- Hromcova, Z. (2019, July). OKRUM AND KETRICAN: AN OVERVIEW OF RECENT KE3CHANG GROUP ACTIVITY. Retrieved May 6, 2020.
- Malik, M. (2019, June 20). LoudMiner: Cross-platform mining in cracked VST software. Retrieved May 18, 2020.
- Szappanos, G., Brandt, A.. (2020, May 27). Netwalker ransomware tools give insight into threat actor. Retrieved May 27, 2020.
- SophosLabs. (2020, May 21). Ragnar Locker ransomware deploys virtual machine to dodge security. Retrieved June 29, 2020.
- Sherstobitoff, R. (2018, March 02). McAfee Uncovers Operation Honeybee, a Malicious Document Campaign Targeting Humanitarian Aid Groups. Retrieved May 16, 2018.
- Smallridge, R. (2018, March 10). APT15 is alive and strong: An analysis of RoyalCli and RoyalDNS. Retrieved April 4, 2018.
- Dumont, R. (2019, March 20). Fake or Fake: Keeping up with OceanLotus decoys. Retrieved April 1, 2019.
- McKeague, B. et al. (2019, April 5). Pick-Six: Intercepting a FIN6 Intrusion, an Actor Recently Tied to Ryuk and LockerGoga Ransomware. Retrieved April 17, 2019.
- GReAT. (2017, November 1). Silence – a new Trojan attacking financial organizations. Retrieved May 24, 2019.
- Group-IB. (2018, September). Silence: Moving Into the Darkside. Retrieved May 5, 2020.
- Glyer, C, et al. (2020, March). This Is Not a Test: APT41 Initiates Global Intrusion Campaign Using Multiple Exploits. Retrieved April 28, 2020.
- Rusu, B. (2020, May 21). Iranian Chafer APT Targeted Air Transportation and Government in Kuwait and Saudi Arabia. Retrieved May 22, 2020.
- Symantec. (2018, February 28). Chafer: Latest Attacks Reveal Heightened Ambitions. Retrieved May 22, 2020.
- Lambert, T. (2020, May 7). Introducing Blue Mockingbird. Retrieved May 26, 2020.