Log Enumeration
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.(Citation: WithSecure Lazarus-NoPineapple Threat Intel Report 2023)(Citation: Cadet Blizzard emerges as novel threat actor) In cloud environments, adversaries may leverage utilities such as the Azure VM Agent’s `CollectGuestLogs.exe` to collect security logs from cloud hosted infrastructure.(Citation: SIM Swapping and Abuse of the Microsoft Azure Serial Console) 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.(Citation: Permiso GUI-Vil 2023)
Примеры процедур |
|
| Название | Описание |
|---|---|
| APT5 |
APT5 has used the BLOODMINE utility to parse and extract information from Pulse Secure Connect logs.(Citation: Mandiant Pulse Secure Update May 2021) |
| Ember Bear |
Ember Bear has enumerated SECURITY and SYSTEM log files during intrusions.(Citation: CISA GRU29155 2024) |
| Volt Typhoon |
Volt Typhoon has used `wevtutil.exe` and the PowerShell command `Get-EventLog security` to enumerate Windows logs to search for successful logons.(Citation: Joint Cybersecurity Advisory Volt Typhoon June 2023)(Citation: CISA AA24-038A PRC Critical Infrastructure February 2024) |
| Aquatic Panda |
Aquatic Panda enumerated logs related to authentication in Linux environments prior to deleting selective entries for defense evasion purposes.(Citation: Crowdstrike HuntReport 2022) |
| Pacu |
Pacu can collect CloudTrail event histories and CloudWatch logs.(Citation: GitHub Pacu) |
| DUSTTRAP |
DUSTTRAP can identify infected system log information.(Citation: Google Cloud APT41 2024) |
Контрмеры |
|
| Контрмера | Описание |
|---|---|
| User Account Management |
Manage the creation, modification, use, and permissions associated to user accounts. |
Ссылки
- Ruohonen, S. & Robinson, S. (2023, February 2). No Pineapple! -DPRK Targeting of Medical Research and Technology Sector. Retrieved July 10, 2023.
- Microsoft Threat Intelligence. (2023, June 14). Cadet Blizzard emerges as a novel and distinct Russian threat actor. Retrieved July 10, 2023.
- 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.
- Ian Ahl. (2023, May 22). Unmasking GUI-Vil: Financially Motivated Cloud Threat Actor. Retrieved August 30, 2024.
- 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.
- US Cybersecurity & Infrastructure Security Agency et al. (2024, September 5). Russian Military Cyber Actors Target U.S. and Global Critical Infrastructure. Retrieved September 6, 2024.
- NSA et al. (2023, May 24). People's Republic of China State-Sponsored Cyber Actor Living off the Land to Evade Detection. Retrieved July 27, 2023.
- CISA et al.. (2024, February 7). PRC State-Sponsored Actors Compromise and Maintain Persistent Access to U.S. Critical Infrastructure. Retrieved May 15, 2024.
- CrowdStrike. (2023). 2022 Falcon OverWatch Threat Hunting Report. Retrieved May 20, 2024.
- Rhino Security Labs. (2019, August 22). Pacu. Retrieved October 17, 2019.
- Mike Stokkel et al. (2024, July 18). APT41 Has Arisen From the DUST. Retrieved September 16, 2024.
Связанные риски
Каталоги
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