Query: detect Detects the execution of a script event consumer. When scrcons.exe launches, it does so in response to the creation of a in logs
Matching passage: Sigma rule: Detects the execution of a script event consumer. When scrcons.exe launches, it does so in response to the creation of a. Logsource: windows / process_creation. Rule: title: WMI Persistence - Script Event Consumer id: ec1d5e28-8f3b-4188-a6f8-6e8df81dc28e status: test description: 'Detects the execution of a script event consumer. When scrcons.exe launches, it does so in response to the creation of an ActiveScriptEventConsumer instance and will execute registered JScript or VBScript code as a result. Script event consumers are a built-in Windows Management Instrumentation (WMI) class that automatically executes a predefined script (in VBScript or JScript) whenever a specific system event occurs. Adversaries often abuse script event consumers to maintain persistence on a compromised host by executing a malicious script whenever a specific event occurs. ' references: - https://redcanary.com/blog/threat-detection/child-processes/ - https://www.eideon.com/2018-03-02-THL03-WMIBackdoors/ author: Thomas Patzke date: 2018-03-07 modified: 2022-10-11 tags: - attack.persistence - attack.privilege-escalation - attack.t1546.003 logsource: category: process_creation product: windows detection: selection: Image: C:\WINDOWS\system32\wbem\scrcons.exe ParentImage: C:\Windows\System32\svchost.exe condition: selection falsepositives: - Legitimate event consumers - Dell computers on some versions register an event consumer that is known to cause false positives when brightness is changed by the corresponding keyboard button level: medium
Near-miss passage: Sigma rule: Detects potentially suspicious file downloads directly from IP addresses using curl.exe. Logsource: windows / process_creation. Rule: title: Suspicious File Download From IP Via Curl.EXE id: 5cb299fc-5fb1-4d07-b989-0644c68b6043 status: test description: Detects potentially suspicious file downloads directly from IP addresses using curl.exe references: - https://labs.withsecure.com/publications/fin7-target-veeam-servers - https://github.com/WithSecureLabs/iocs/blob/344203de742bb7e68bd56618f66d34be95a9f9fc/FIN7VEEAM/iocs.csv - https://github.com/pr0xylife/IcedID/blob/8dd1e218460db4f750d955b4c65b2f918a1db906/icedID_09.28.2023.txt author: Nasreddine Bencherchali (Nextron Systems) date: 2023-07-27 tags: - attack.execution logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \curl.exe - OriginalFileName: curl.exe selection_ip: CommandLine|re: ://[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3} selection_http: CommandLine|contains: http selection_flag: CommandLine|contains: - ' -O' - --remote-name - --output selection_ext: CommandLine|endswith: - .bat - .bat" - .dat - .dat" - .dll - .dll" - .exe - .exe" - .gif - .gif" - .hta - .hta" - .jpeg - .jpeg" - .log - .log" - .msi - .msi" - .png - .png" - .ps1 - .ps1" - .psm1 - .psm1" - .vbe - .vbe" - .vbs - .vbs" - .bat' - .dat' - .dll' - .exe' - .gif' - .hta' - .jpeg' - .log' - .msi' - .png' - .ps1' - .psm1' - .vbe' - .vbs' condition: all of selection_* falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_curl_download_direct_ip_susp_extensions/info.yml