Security Software Discovery

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Security Software Discovery
Technique
ID T1063
Tactic Discovery
Platform macOS, Windows
Permissions Required User, Administrator, SYSTEM
Data Sources File monitoring, Process command-line parameters, Process monitoring

Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on the system. This may include things such as local firewall rules, anti-virus, and virtualization. These checks may be built into early-stage remote access tools.

Windows

Example commands that can be used to obtain security software information are netsh, reg query with Reg, dir with cmd, and Tasklist, but other indicators of discovery behavior may be more specific to the type of software or security system the adversary is looking for.

Mac

It's becoming more common to see macOS malware perform checks for LittleSnitch and KnockKnock software.

Examples

  • FIN8 has used Registry keys to detect and avoid executing in potential sandboxes.1
  • Naikon uses commands such as netsh advfirewall firewall to discover local firewall settings.2
  • Patchwork scanned the “Program Files” directories for a directory with the string “Total Security” (the installation path of the “360 Total Security” antivirus tool).3
  • CHOPSTICK checks for anti-virus, forensics, and virtualization software.4
  • The main CozyCar dropper checks whether the victim has an anti-virus product installed. If the installed product is on a predetermined list, the dropper will exit. Newer versions of CozyCar will check to ensure it is not being executed inside a virtual machine or a known malware analysis sandbox environment. If it detects that it is, it will exit. 5
  • Crimson contains a command to collect information about anti-virus software on the victim.6
  • DustySky checks for the existence of anti-virus.7
  • The Dyre crimeware toolkit has refined its detection of sandbox analysis environments by inspecting the process list and Registry.8
  • Felismus checks for processes associated with anti-virus vendors.9
  • Flame identifies security software such as antivirus through the Security module.10
  • JPIN checks for the presence of certain security-related processes and deletes its installer/uninstaller component if it identifies any of them.11
  • Kasidet has the ability to identify any anti-virus installed on the infected system.12
  • POWERSTATS has detected security tools.13
  • POWRUNER may collect information the victim's anti-virus software.14
  • A module in Prikormka collects information from the victim about installed anti-virus software.15
  • RTM can obtain information about security software on the victim.16
  • Remsec has a plugin to detect active drivers of some security products.17
  • StreamEx has the ability to scan for security tools such as firewalls and antivirus tools.18
  • T9000 performs checks for various antivirus and security products during installation.19
  • Tasklist can be used to enumerate security software currently running on a system by process name of known products.20
  • Wingbird checks for the presence of Bitdefender security software.21
  • netsh can be used to discover system firewall settings.22

Mitigation

Identify unnecessary system utilities or potentially malicious software that may be used to acquire information about local security software, and audit and/or block them by using whitelisting23 tools, like AppLocker,2425 or Software Restriction Policies26 where appropriate.27

Detection

System and network discovery techniques normally occur throughout an operation as an adversary learns the environment. Data and events should not be viewed in isolation, but as part of a chain of behavior that could lead to other activities, such as lateral movement, based on the information obtained.

Monitor processes and command-line arguments for actions that could be taken to gather system and network information. Remote access tools with built-in features may interact directly with the Windows API to gather information. Information may also be acquired through Windows system management tools such as Windows Management Instrumentation and PowerShell.

References

  1. ^  Elovitz, S. & Ahl, I. (2016, August 18). Know Your Enemy: New Financially-Motivated & Spear-Phishing Group. Retrieved February 26, 2018.
  2. ^  Baumgartner, K., Golovkin, M.. (2015, May). The MsnMM Campaigns: The Earliest Naikon APT Campaigns. Retrieved December 17, 2015.
  3. ^  Cymmetria. (2016). Unveiling Patchwork - The Copy-Paste APT. Retrieved August 3, 2016.
  4. ^  FireEye. (2015). APT28: A WINDOW INTO RUSSIA’S CYBER ESPIONAGE OPERATIONS?. Retrieved August 19, 2015.
  5. ^  F-Secure Labs. (2015, April 22). CozyDuke: Malware Analysis. Retrieved December 10, 2015.
  6. ^  Huss, D.. (2016, March 1). Operation Transparent Tribe. Retrieved June 8, 2016.
  7. ^  ClearSky. (2016, January 7). Operation DustySky. Retrieved January 8, 2016.
  8. ^  Raff, A. (2015, April 30). New Dyre Version- Yet Another Malware Evading Sandboxes. Retrieved July 18, 2016.
  9. ^  Somerville, L. and Toro, A. (2017, March 30). Playing Cat & Mouse: Introducing the Felismus Malware. Retrieved November 16, 2017.
  10. ^  Gostev, A. (2012, May 30). Flame: Bunny, Frog, Munch and BeetleJuice…. Retrieved March 1, 2017.
  11. ^  Windows Defender Advanced Threat Hunting Team. (2016, April 29). PLATINUM: Targeted attacks in South and Southeast Asia. Retrieved February 15, 2018.
  12. ^  Yadav, A., et al. (2016, January 29). Malicious Office files dropping Kasidet and Dridex. Retrieved March 24, 2016.
  13. ^  Singh, S. et al.. (2018, March 13). Iranian Threat Group Updates Tactics, Techniques and Procedures in Spear Phishing Campaign. Retrieved April 11, 2018.
  14. ^  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.
  1. ^  Cherepanov, A.. (2016, May 17). Operation Groundbait: Analysis of a surveillance toolkit. Retrieved May 18, 2016.
  2. ^  Faou, M. and Boutin, J.. (2017, February). Read The Manual: A Guide to the RTM Banking Trojan. Retrieved March 9, 2017.
  3. ^  Kaspersky Lab's Global Research & Analysis Team. (2016, August 9). The ProjectSauron APT. Technical Analysis. Retrieved August 17, 2016.
  4. ^  Cylance SPEAR Team. (2017, February 9). Shell Crew Variants Continue to Fly Under Big AV’s Radar. Retrieved February 15, 2017.
  5. ^  Grunzweig, J. and Miller-Osborn, J.. (2016, February 4). T9000: Advanced Modular Backdoor Uses Complex Anti-Analysis Techniques. Retrieved April 15, 2016.
  6. ^  Microsoft. (n.d.). Tasklist. Retrieved December 23, 2015.
  7. ^  Anthe, C. et al. (2016, December 14). Microsoft Security Intelligence Report Volume 21. Retrieved November 27, 2017.
  8. ^  Microsoft. (2009, June 3). Netsh Commands for Windows Firewall. Retrieved April 20, 2016.
  9. ^  Beechey, J. (2010, December). Application Whitelisting: Panacea or Propaganda?. Retrieved November 18, 2014.
  10. ^  Tomonaga, S. (2016, January 26). Windows Commands Abused by Attackers. Retrieved February 2, 2016.
  11. ^  NSA Information Assurance Directorate. (2014, August). Application Whitelisting Using Microsoft AppLocker. Retrieved March 31, 2016.
  12. ^  Corio, C., & Sayana, D. P. (2008, June). Application Lockdown with Software Restriction Policies. Retrieved November 18, 2014.
  13. ^  Microsoft. (2012, June 27). Using Software Restriction Policies and AppLocker Policies. Retrieved April 7, 2016.