Data from Removable Media
Sensitive data can be collected from any removable media (optical disk drive, USB memory, etc.) connected to the compromised system prior to Exfiltration.
Adversaries may search connected removable media on computers they have compromised to find files of interest. Interactive command shells may be in use, and common functionality within cmd may be used to gather information. Some adversaries may also use Automated Collection on removable media.
FLASHFLOOD searches for interesting files (either a default or customized set of file extensions) on removable media and copies them to a staging area. The default file types copied would include data copied to the drive by SPACESHIP.
This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of system features.
Monitor processes and command-line arguments for actions that could be taken to collect files from a system's connected removable media. Remote access tools with built-in features may interact directly with the Windows API to gather data. Data may also be acquired through Windows system management tools such as Windows Management Instrumentation and PowerShell.
- Calvet, J. (2014, November 11). Sednit Espionage Group Attacking Air-Gapped Networks. Retrieved January 4, 2017.
- Kaspersky Lab's Global Research and Analysis Team. (2015, December 4). Sofacy APT hits high profile targets with updated toolset. Retrieved December 10, 2015.
- Mercer, W., Rascagneres, P. (2018, April 26). GravityRAT - The Two-Year Evolution Of An APT Targeting India. Retrieved May 16, 2018.
- F-Secure Labs. (2014, July). COSMICDUKE Cosmu with a twist of MiniDuke. Retrieved July 3, 2014.
- FireEye Labs. (2015, April). APT30 AND THE MECHANICS OF A LONG-RUNNING CYBER ESPIONAGE OPERATION. Retrieved May 1, 2015.
- Cherepanov, A.. (2016, May 17). Operation Groundbait: Analysis of a surveillance toolkit. Retrieved May 18, 2016.
- Ray, V., Hayashi, K. (2016, February 29). New Malware ‘Rover’ Targets Indian Ambassador to Afghanistan. Retrieved February 29, 2016.
- Kaspersky Lab's Global Research & Analysis Team. (2016, August 9). The ProjectSauron APT. Technical Analysis. Retrieved August 17, 2016.
- Lunghi, D., et al. (2017, December). Untangling the Patchwork Cyberespionage Group. Retrieved July 10, 2018.
- Huss, D.. (2016, March 1). Operation Transparent Tribe. Retrieved June 8, 2016.
- ESET. (2019, July). MACHETE JUST GOT SHARPER Venezuelan government institutions under attack. Retrieved September 13, 2019.
- Anthe, C. et al. (2015, October 19). Microsoft Security Intelligence Report Volume 19. Retrieved December 23, 2015.
- Kasza, A. and Reichel, D.. (2017, February 27). The Gamaredon Group Toolset Evolution. Retrieved March 1, 2017.
- Faou, M. and Dumont R.. (2019, May 29). A dive into Turla PowerShell usage. Retrieved June 14, 2019.
- Symantec DeepSight Adversary Intelligence Team. (2019, June 20). Waterbug: Espionage Group Rolls Out Brand-New Toolset in Attacks Against Governments. Retrieved July 8, 2019.
- The Cylance Threat Research Team. (2017, March 22). El Machete's Malware Attacks Cut Through LATAM. Retrieved September 13, 2019.