Query: alert when Detects a file ending in jse, vbe, js, vba, vbs, wsf, wsh written by cscript.exe or wscript.exe
Matching passage: Sigma rule: Detects a file ending in jse, vbe, js, vba, vbs, wsf, wsh written by cscript.exe or wscript.exe. Logsource: windows / file_event. Rule: title: WScript or CScript Dropper - File id: 002bdb95-0cf1-46a6-9e08-d38c128a6127 related: - id: cea72823-df4d-4567-950c-0b579eaf0846 type: derived status: test description: Detects a file ending in jse, vbe, js, vba, vbs, wsf, wsh written by cscript.exe or wscript.exe references: - WScript or CScript Dropper (cea72823-df4d-4567-950c-0b579eaf0846) author: Tim Shelton date: 2022-01-10 modified: 2026-02-17 tags: - attack.execution - attack.t1059.005 - attack.t1059.007 logsource: category: file_event product: windows detection: selection: Image|endswith: - \wscript.exe - \cscript.exe TargetFilename|contains: - :\Perflogs\ - :\ProgramData\ - :\Temp\ - :\Tmp\ - :\Users\ - :\Windows\Temp\ - \AppData\Local\Temp - \AppData\Roaming\Temp - \Start Menu\Programs\Startup\ - \Temporary Internet TargetFilename|endswith: - .js - .jse - .vba - .vbe - .vbs - .wsf - .wsh condition: selection falsepositives: - Unknown level: high
Near-miss passage: Sigma rule: Detects the load of RstrtMgr DLL (Restart Manager) by an uncommon process. This library has been used during ransomware. Logsource: windows / image_load. Rule: title: Load Of RstrtMgr.DLL By An Uncommon Process id: 3669afd2-9891-4534-a626-e5cf03810a61 related: - id: b48492dc-c5ef-4572-8dff-32bc241c15c8 type: derived status: test description: 'Detects the load of RstrtMgr DLL (Restart Manager) by an uncommon process. This library has been used during ransomware campaigns to kill processes that would prevent file encryption by locking them (e.g. Conti ransomware, Cactus ransomware). It has also recently been seen used by the BiBi wiper for Windows. It could also be used for anti-analysis purposes by shut downing specific processes. ' references: - https://www.crowdstrike.com/blog/windows-restart-manager-part-1/ - https://www.crowdstrike.com/blog/windows-restart-manager-part-2/ - https://web.archive.org/web/20231221193106/https://www.swascan.com/cactus-ransomware-malware-analysis/ - https://taiwan.postsen.com/business/88601/Hamas-hackers-use-data-destruction-software-BiBi-which-consumes-a-lot-of-processor-resources-to-wipe-Windows-computer-data--iThome.html author: Luc Génaux date: 2023-11-28 modified: 2026-07-28 tags: - attack.impact - attack.defense-impairment - attack.t1486 - attack.t1685 logsource: category: image_load product: windows detection: selection: - ImageLoaded|endswith: \RstrtMgr.dll - OriginalFileName: RstrtMgr.dll filter_main_generic: Image|startswith: - C:\$WINDOWS.~BT\ - C:\$WinREAgent\ - C:\Program Files (x86)\ - C:\Program Files\ - C:\ProgramData\ - C:\Windows\explorer.exe - C:\Windows\SoftwareDistribution\ - C:\Windows\SysNative\ - C:\Windows\System32\ - C:\Windows\SysWOW64\ - C:\Windows\WinSxS\ - C:\WUDownloadCache\ filter_main_user_software_installations: Image|startswith: C:\Users\ Image|contains|all: - \AppData\Local\Temp\is- - .tmp\ Image|endswith: .tmp filter_main_admin_software_installations: Image|startswith: C:\Windows\Temp\ filter_optional_onedrive_1: Image|startswith: C:\Users\ Image|endswith: - \AppData\Local\Microsoft\OneDrive\OneDrive.exe - \AppData\Local\Microsoft\OneDrive\OneDriveStandaloneUpdater.exe filter_optional_onedrive_2: Image|startswith: C:\Users\ Image|contains: \AppData\Local\Microsoft\OneDrive\ Image|endswith: \OneDrive.Sync.Service.exe condition: selection and not 1 of filter_main_* and not 1 of filter_optional_* falsepositives: - Other legitimate Windows processes not currently listed - Processes related to software installation level: low