/* Yara Rule Set Author: Florian Roth Date: 2016-02-17 Identifier: Locky */ rule Locky_Ransomware { meta: description = "Detects Locky Ransomware (matches also on Win32/Kuluoz)" author = "Florian Roth (Nextron Systems) (with the help of binar.ly)" reference = "https://goo.gl/qScSrE" date = "2016-02-17" hash = "5e945c1d27c9ad77a2b63ae10af46aee7d29a6a43605a9bfbf35cebbcff184d8" id = "ce61e01e-a9ce-54f4-bd2d-8acf1d5fbc30" strings: $o1 = { 45 b8 99 f7 f9 0f af 45 b8 89 45 b8 } // address=0x4144a7 $o2 = { 2b 0a 0f af 4d f8 89 4d f8 c7 45 } // address=0x413863 condition: all of ($o*) }