Versions (3)
Version DetailsCurrent
Rev: 4 • Nov 29, 2018, 12:00 PMET MALWARE Inbound PowerShell Executing Base64 Decoded VBE from Temp 2018-11-29
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Inbound PowerShell Executing Base64 Decoded VBE from Temp 2018-11-29"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"|3a 3a|FromBase64String"; nocase; content:"-Path|20|C|3a 5c|windows|5c|temp|5c|"; distance:0; nocase; content:"start-process|20|c|3a 5c|windows|5c|system32|5c|wscript.exe|20|-ArgumentList|20 22|c|3a 5c|windows|5c|temp|5c|"; distance:0; nocase; fast_pattern; content:".vbe|22|"; within:20; reference:url,www.clearskysec.com/muddywater-operations-in-lebanon-and-oman/; classtype:trojan-activity; sid:2026677; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_11_29, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag PowerShell, tag Obfuscated, updated_at 2020_11_18;)
Nov 29, 2018, 12:00 PM
Nov 18, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules