SigmaHQ/rules/windows/process_creation/win_exploit_cve_2017_8759.yml

title: Exploit for CVE-2017-8759
description: Detects Winword starting uncommon sub process csc.exe as used in exploits for CVE-2017-8759
references:
    - https://www.hybrid-analysis.com/sample/0b4ef455e385b750d9f90749f1467eaf00e46e8d6c2885c260e1b78211a51684?environmentId=100
    - https://www.reverse.it/sample/0b4ef455e385b750d9f90749f1467eaf00e46e8d6c2885c260e1b78211a51684?environmentId=100
tags:
    - attack.execution
    - attack.t1203
author: Florian Roth
date: 2017/09/15
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage: '*\WINWORD.EXE'
        Image: '*\csc.exe'
    condition: selection
falsepositives:
    - Unknown
level: critical
Converted Sysmon/1 and Security/4688 to generic process creation rules 2019-01-16 22:36:31 +00:00			`title: Exploit for CVE-2017-8759`
CVE-2017-8759 - Winword.exe > csc.exe 2017-09-15 13:49:05 +00:00			`description: Detects Winword starting uncommon sub process csc.exe as used in exploits for CVE-2017-8759`
Change "reference" to "references" to match new schema 2018-01-27 23:12:19 +00:00			`references:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`- https://www.hybrid-analysis.com/sample/0b4ef455e385b750d9f90749f1467eaf00e46e8d6c2885c260e1b78211a51684?environmentId=100`
			`- https://www.reverse.it/sample/0b4ef455e385b750d9f90749f1467eaf00e46e8d6c2885c260e1b78211a51684?environmentId=100`
atc review 2019-03-06 04:25:12 +00:00			`tags:`
			`- attack.execution`
			`- attack.t1203`
CVE-2017-8759 - Winword.exe > csc.exe 2017-09-15 13:49:05 +00:00			`author: Florian Roth`
fixed incorrect date format 2019-03-07 21:52:11 +00:00			`date: 2017/09/15`
CVE-2017-8759 - Winword.exe > csc.exe 2017-09-15 13:49:05 +00:00			`logsource:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`category: process_creation`
			`product: windows`
CVE-2017-8759 - Winword.exe > csc.exe 2017-09-15 13:49:05 +00:00			`detection:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`selection:`
			`ParentImage: '*\WINWORD.EXE'`
			`Image: '*\csc.exe'`
			`condition: selection`
CVE-2017-8759 - Winword.exe > csc.exe 2017-09-15 13:49:05 +00:00			`falsepositives:`
Increased indentation to 4 * Converted (to generic sigma) rules * Converter outputs by default with indentation 4 2019-03-01 23:14:20 +00:00			`- Unknown`
CVE-2017-8759 - Winword.exe > csc.exe 2017-09-15 13:49:05 +00:00			`level: critical`