From 93880a8100021c5320eae1d60ad2a8a20bf9dcff Mon Sep 17 00:00:00 2001
From: Ming Di Leom <2809763-curben@users.noreply.gitlab.com>
Date: Sun, 1 Jun 2025 11:54:08 +0000
Subject: [PATCH] page(threat-hunting): Windows JScript execution

---
 source/threat-hunting/index.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/source/threat-hunting/index.md b/source/threat-hunting/index.md
index abb9159..15880bc 100644
--- a/source/threat-hunting/index.md
+++ b/source/threat-hunting/index.md
@@ -1695,6 +1695,17 @@ SPL:
 | table Time, index, host, EventCode, EventDescription, process, user, Name, Email
 ```
 
+## Windows JScript execution
+
+Description: JScript execution with unusual file extension.
+References: [1](https://redcanary.com/blog/threat-intelligence/intelligence-insights-may-2025/)
+SPL:
+
+```spl
+| tstats summariesonly=true allow_old_summaries=true fillnull_value="(unknown)" count FROM datamodel=Endpoint.Processes WHERE index="windows" Processes.process_name IN ("wscript.exe", "cscript.exe") Processes.process="*/e:jscript*" NOT Processes.process IN ("*.js", "*.bat", "*.cmd") BY index, host, Processes.signature_id, Processes.signature, Processes.parent_process, Processes.process, Processes.user, _time span=1s
+| rename Processes.* AS *, signature_id AS EventCode, signature AS EventDescription
+```
+
 ## Windows Script Executed from Scheduled Task
 
 References: [1](https://redcanary.com/blog/threat-intelligence/intelligence-insights-may-2024/)