curben
/
blog
mirror of https://gitlab.com/curben/blog
1
0
Fork 0
Code Issues Releases Wiki Activity

feat(threat-hunting): WinrsHost.exe execution

This commit is contained in:
Ming Di Leom 2025-02-16 10:17:08 +00:00
parent 7da3ce2538
commit b5a08380d4
No known key found for this signature in database
GPG Key ID: 32D3E28E96A695E8
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
source/threat-hunting/index.md
View File

@ -1583,3 +1583,16 @@ SPL:
| lookup ad_users sAMAccountName AS user OUTPUT displayName AS Name, mail AS Email | lookup ad_users sAMAccountName AS user OUTPUT displayName AS Name, mail AS Email
| table Time, host, process, parent_process, EventCode, EventDescription, user, Name, Email, index | table Time, host, process, parent_process, EventCode, EventDescription, user, Name, Email, index
``` ```
## WinrsHost.exe execution
References: [1](https://www.elastic.co/security-labs/fragile-web-ref7707), [2](https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/winrs)
SPL:
```spl
| tstats summariesonly=true allow_old_summaries=true fillnull_value="unknown" count FROM datamodel=Endpoint.Processes WHERE index="windows" Processes.signature_id=4688 (Processes.parent_process_name="winrshost.exe" OR Processes.process_name="winrs.exe") 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
| eval Time = strftime(_time, "%Y-%m-%d %H:%M:%S %z")
| lookup ad_users sAMAccountName AS user OUTPUT displayName AS Name, mail AS Email
| table Time, index, host, EventCode, EventDescription, parent_process, process, user, Name, Email
```