Query: alert when Detects dropped files with double extensions, which is often used by malware as a method to abuse the fact that Windows
Matching passage: Sigma rule: Detects dropped files with double extensions, which is often used by malware as a method to abuse the fact that Windows. Logsource: windows / file_event. Rule: title: Suspicious Double Extension Files id: b4926b47-a9d7-434c-b3a0-adc3fa0bd13e related: - id: 1cdd9a09-06c9-4769-99ff-626e2b3991b8 type: derived - id: 3215aa19-f060-4332-86d5-5602511f3ca8 type: similar status: test description: Detects dropped files with double extensions, which is often used by malware as a method to abuse the fact that Windows hide default extensions by default. references: - https://www.crowdstrike.com/blog/meet-crowdstrikes-adversary-of-the-month-for-june-mustang-panda/ - https://www.anomali.com/blog/china-based-apt-mustang-panda-targets-minority-groups-public-and-private-sector-organizations - https://www.cybereason.com/blog/research/a-bazar-of-tricks-following-team9s-development-cycles - https://twitter.com/malwrhunterteam/status/1235135745611960321 - https://twitter.com/luc4m/status/1073181154126254080 - https://cloud.google.com/blog/topics/threat-intelligence/cybercriminals-weaponize-fake-ai-websites - https://vipre.com/blog/svg-phishing-attacks-the-new-trick-in-the-cybercriminals-playbook/ author: Nasreddine Bencherchali (Nextron Systems), frack113 date: 2022-06-19 modified: 2026-03-31 tags: - attack.stealth - attack.t1036.007 logsource: category: file_event product: windows detection: selection_gen: TargetFilename|endswith: - .exe - .iso - .rar - .svg - .zip TargetFilename|contains: - .doc. - .docx. - .gif. - .jpeg. - .jpg. - .mp3. - .mp4. - .pdf. - .png. - .ppt. - .pptx. - .rtf. - .svg. - .txt. - .xls. - .xlsx. selection_exe: TargetFilename|endswith: - .rar.exe - .zip.exe filter_icons_linux: TargetFilename|startswith: /usr/share/icons/ condition: 1 of selection_* and not 1 of filter_* falsepositives: - Unlikely level: high
Near-miss passage: Sigma rule: Detects the execution of UACMe, a tool used for UAC bypasses, via default PE metadata. Logsource: windows / process_creation. Rule: title: HackTool - UACMe Akagi Execution id: d38d2fa4-98e6-4a24-aff1-410b0c9ad177 status: test description: Detects the execution of UACMe, a tool used for UAC bypasses, via default PE metadata references: - https://github.com/hfiref0x/UACME author: Christian Burkard (Nextron Systems), Florian Roth (Nextron Systems) date: 2021-08-30 modified: 2024-11-23 tags: - attack.privilege-escalation - attack.t1548.002 logsource: category: process_creation product: windows detection: selection_pe: - Product: UACMe - Company: - REvol Corp - APT 92 - UG North - Hazardous Environments - CD Project Rekt - Description: - UACMe main module - Pentesting utility - OriginalFileName: - Akagi.exe - Akagi64.exe selection_img: Image|endswith: - \Akagi64.exe - \Akagi.exe selection_hashes_sysmon: Hashes|contains: - IMPHASH=767637C23BB42CD5D7397CF58B0BE688 - IMPHASH=14C4E4C72BA075E9069EE67F39188AD8 - IMPHASH=3C782813D4AFCE07BBFC5A9772ACDBDC - IMPHASH=7D010C6BB6A3726F327F7E239166D127 - IMPHASH=89159BA4DD04E4CE5559F132A9964EB3 - IMPHASH=6F33F4A5FC42B8CEC7314947BD13F30F - IMPHASH=5834ED4291BDEB928270428EBBAF7604 - IMPHASH=5A8A8A43F25485E7EE1B201EDCBC7A38 - IMPHASH=DC7D30B90B2D8ABF664FBED2B1B59894 - IMPHASH=41923EA1F824FE63EA5BEB84DB7A3E74 - IMPHASH=3DE09703C8E79ED2CA3F01074719906B condition: 1 of selection_* falsepositives: - Unknown level: high