Adversaries may enumerate system and service logs to find useful data. These logs may highlight various types of valuable insights for an adversary, such as user authentication records (Account Discovery), security or vulnerable software (Software Discovery), or hosts within a compromised network (Remote System Discovery).

Host binaries may be leveraged to collect system logs. Examples include using wevtutil.exe or PowerShell on Windows to access and/or export security event information.^[1],[2] In cloud environments, adversaries may leverage utilities such as the Azure VM Agent’s CollectGuestLogs.exe to collect security logs from cloud hosted infrastructure.^[3]

Adversaries may also target centralized logging infrastructure such as SIEMs. Logs may also be bulk exported and sent to adversary-controlled infrastructure for offline analysis.

In addition to gaining a better understanding of the environment, adversaries may also monitor logs in real time to track incident response procedures. This may allow them to adjust their techniques in order to maintain persistence or evade defenses.^[4]

References

1. Ruohonen, S. & Robinson, S. (2023, February 2). No Pineapple! -DPRK Targeting of Medical Research and Technology Sector. Retrieved July 10, 2023.
2. Microsoft Threat Intelligence. (2023, June 14). Cadet Blizzard emerges as a novel and distinct Russian threat actor. Retrieved July 10, 2023.
3. Mandiant Intelligence. (2023, May 16). SIM Swapping and Abuse of the Microsoft Azure Serial Console: Serial Is Part of a Well Balanced Attack. Retrieved June 2, 2023.
4. Ian Ahl. (2023, May 22). Unmasking GUI-Vil: Financially Motivated Cloud Threat Actor. Retrieved August 30, 2024.

Incidencias vinculadas

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