Sigma rule: Execution From Webserver Root Folder

Rule

Title

Execution From Webserver Root Folder

Status

test

Level

medium

Author

Florian Roth (Nextron Systems)

Date

2019-01-16

Modified

2024-01-18

File

rules-threat-hunting/windows/process_creation/proc_creation_win_susp_execution_path_webserver.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a program executing from a web server root folder. Use this rule to hunt for potential interesting activity such as webshell or backdoors

Log source

product

windows

category

process_creation

Detection

selection:
    Image|contains:
        - '\wwwroot\'
        - '\wmpub\'
        - '\htdocs\'
filter_main_generic:
    Image|contains:
        - 'bin\'
        - '\Tools\'
        - '\SMSComponent\'
    ParentImage|endswith: '\services.exe'
condition: selection and not 1 of filter_main_*

False positives (as the rule lists them)

• Various applications
• Tools that include ping or nslookup command invocations

Tags

• attack.persistence
• attack.t1505.003
• detection.threat-hunting

MITRE ATT&CK ids this rule names

• T1505.003

References

• Internal Research

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-threat-hunting/windows/process_creation/proc_creation_win_susp_execution_path_webserver.yml