Query: alert when Detects the creation of a scheduled task using schtasks.exe, potentially in combination with curl for downloading payloa
Matching passage: Sigma rule: Detects the creation of a scheduled task using schtasks.exe, potentially in combination with curl for downloading payloa. Logsource: windows / process_creation. Rule: title: Scheduled Task Creation with Curl and PowerShell Execution Combo id: 1d174d38-8fda-4081-a9b6-56d9763c0cd8 status: experimental description: 'Detects the creation of a scheduled task using schtasks.exe, potentially in combination with curl for downloading payloads and PowerShell for executing them. This facilitates executing malicious payloads or connecting with C&C server persistently without dropping the malware sample on the host. ' references: - https://tria.ge/241015-l98snsyeje/behavioral2 author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-02-05 tags: - attack.privilege-escalation - attack.execution - attack.persistence - attack.stealth - attack.t1053.005 - attack.t1218 - attack.command-and-control - attack.t1105 logsource: category: process_creation product: windows detection: selection_img: Image|endswith: \schtasks.exe CommandLine|contains|windash: ' /create ' selection_curl: CommandLine|contains|all: - 'curl ' - http - -o selection_powershell: CommandLine|contains: powershell condition: all of selection_* falsepositives: - Legitimate use of schtasks for administrative purposes. - Automation scripts combining curl and PowerShell in controlled environments. level: medium
Near-miss passage: Sigma rule: Detects suspicious activity where the WMIC process is used to create an autorun registry entry via reg.exe, which is oft. Logsource: windows / process_creation. Rule: title: Suspicious Autorun Registry Modified via WMI id: c80e66d8-1780-48a9-b412-46663fd21ac0 status: experimental description: 'Detects suspicious activity where the WMIC process is used to create an autorun registry entry via reg.exe, which is often indicative of persistence mechanisms employed by malware. ' references: - Internal Research - https://github.com/HackTricks-wiki/hacktricks/blob/e4c7b21b8f36c97c35b7c622732b38a189ce18f7/src/windows-hardening/windows-local-privilege-escalation/privilege-escalation-with-autorun-binaries.md author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-02-17 tags: - attack.privilege-escalation - attack.execution - attack.persistence - attack.t1547.001 - attack.t1047 logsource: category: process_creation product: windows detection: selection_execution_img: - Image|endswith: \wmic.exe - OriginalFileName: wmic.exe - ParentImage|endswith: \wmiprvse.exe selection_execution_cmd: CommandLine|contains|all: - reg - ' add ' CommandLine|contains: - \Software\Microsoft\Windows\CurrentVersion\Run - \Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run - \Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run selection_suspicious_paths_1: CommandLine|contains: - :\Perflogs - :\ProgramData' - :\Windows\Temp - :\Temp - \AppData\Local\Temp - \AppData\Roaming - :\$Recycle.bin - :\Users\Default - :\Users\public - '%temp%' - '%tmp%' - '%Public%' - '%AppData%' selection_suspicious_paths_user_1: CommandLine|contains: :\Users\ selection_suspicious_paths_user_2: CommandLine|contains: - \Favorites - \Favourites - \Contacts - \Music - \Pictures - \Documents - \Photos condition: all of selection_execution_* and (selection_suspicious_paths_1 or (all of selection_suspicious_paths_user_*)) falsepositives: - Legitimate administrative activity or software installations level: high