Query: alert when Detects LOLBINs and applications that should not legitimately drop executable or executable-equivalent files to disk. Th
Matching passage: Sigma rule: Detects LOLBINs and applications that should not legitimately drop executable or executable-equivalent files to disk. Th. Logsource: windows / file_event. Rule: title: Legitimate Application Dropped Executable id: f0540f7e-2db3-4432-b9e0-3965486744bc status: test description: 'Detects LOLBINs and applications that should not legitimately drop executable or executable-equivalent files to disk. This may indicate malware staging, process injection, or abuse of a trusted binary for payload delivery. ' references: - https://github.com/Neo23x0/sysmon-config/blob/3f808d9c022c507aae21a9346afba4a59dd533b9/sysmonconfig-export-block.xml#L1326 - https://dmpdump.github.io/posts/TelegramRat/ - https://www.virustotal.com/gui/file/a0d5b30578acd1df9139e7a8a4bfc659dc2cf48f4dc0c5804b70890adeb9fa21/behavior author: frack113, Florian Roth (Nextron Systems) date: 2022-08-21 modified: 2026-05-11 tags: - attack.stealth - attack.t1218 logsource: product: windows category: file_event detection: selection: Image|endswith: - \eqnedt32.exe - \wordpad.exe - \wordview.exe - \certutil.exe - \certoc.exe - \CertReq.exe - \Desktopimgdownldr.exe - \esentutl.exe - \mshta.exe - \AcroRd32.exe - \RdrCEF.exe - \hh.exe - \finger.exe TargetFilename|endswith: - .com - .dll - .exe - .jar - .ocx - .pyc condition: selection falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/file/file_event/file_event_win_susp_legitimate_app_dropping_exe/info.yml
Near-miss passage: Sigma rule: Detects scenario where weak encryption is enabled for a user profile which could be used for hash/password cracking.. Logsource: windows / security. Rule: title: Weak Encryption Enabled and Kerberoast id: f6de9536-0441-4b3f-a646-f4e00f300ffd status: test description: Detects scenario where weak encryption is enabled for a user profile which could be used for hash/password cracking. references: - https://adsecurity.org/?p=2053 - https://blog.harmj0y.net/redteaming/another-word-on-delegation/ author: '@neu5ron' date: 2017-07-30 modified: 2021-11-27 tags: - attack.defense-impairment - attack.t1685 logsource: product: windows service: security definition: 'Requirements: Audit Policy : Account Management > Audit User Account Management, Group Policy : Computer Configuration\Windows Settings\Security Settings\Advanced Audit Policy Configuration\Audit Policies\Account Management\Audit User Account Management' detection: selection: EventID: 4738 olduac_des: OldUacValue|endswith: - 8??? - 9??? - A??? - B??? - C??? - D??? - E??? - F??? newuac_des: NewUacValue|endswith: - 8??? - 9??? - A??? - B??? - C??? - D??? - E??? - F??? olduac_preauth: OldUacValue|endswith: - 1???? - 3???? - 5???? - 7???? - 9???? - B???? - D???? - F???? newuac_preauth: NewUacValue|endswith: - 1???? - 3???? - 5???? - 7???? - 9???? - B???? - D???? - F???? olduac_encrypted: OldUacValue|endswith: - 8?? - 9?? - A?? - B?? - C?? - D?? - E?? - F?? newuac_encrypted: NewUacValue|endswith: - 8?? - 9?? - A?? - B?? - C?? - D?? - E?? - F?? condition: selection and ((newuac_des and not olduac_des) or (newuac_preauth and not olduac_preauth) or (newuac_encrypted and not olduac_encrypted)) falsepositives: - Unknown level: high