Versions (4)
Version DetailsCurrent
Rev: 4 • Aug 13, 2021, 12:00 PMET EXPLOIT Microsoft Windows VBScript Engine VbsErase Memory Corruption (CVE-2019-0667)
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Microsoft Windows VBScript Engine VbsErase Memory Corruption (CVE-2019-0667)"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"<script"; content:"Class|20|"; pcre:"/^(?P<class>[A-Z0-9_-]{1,20})\s*.*?(?P<var>[A-Z0-9_-]{1,15})\s*=\s*(?:&\x3b|0x|\\x|&?h)*\d{8}\s*.*?(?:ReDim|Dim)\s*(?P=var)\(\d{4,20}\).*?set\s*(?P=var)\(\d+\)\s*=\s*new\s*(?P=class).*?Erase\s*(?P=var).*?Erase\s*(?P=var)/Rsi"; content:"Erase|20|"; fast_pattern; content:"Dim|20|"; reference:cve,2019-0667; classtype:attempted-admin; sid:2033733; rev:4; metadata:attack_target Server, created_at 2021_08_13, cve CVE_2019_0667, deployment Perimeter, deployment Internal, confidence Low, signature_severity Major, tag Exploit, updated_at 2021_11_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)
Aug 13, 2021, 12:00 PM
Nov 3, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-exploit.rules