HKTL_CobaltStrike_SleepMask_Jul22

rule HKTL_CobaltStrike_SleepMask_Jul22 {
   meta:
      description = "Detects static bytes in Cobalt Strike 4.5 sleep mask function that are not obfuscated"
      author = "CodeX"
      date = "2022-07-04"
      reference = "https://codex-7.gitbook.io/codexs-terminal-window/blue-team/detecting-cobalt-strike/sleep-mask-kit-iocs"
      score = 80
      id = "d396ab0e-b584-5a7c-8627-5f318a20f9dd"
   strings:
      $sleep_mask = { 48 8B C4 48 89 58 08 48 89 68 10 48 89 70 18 48 89 78 20 45 33 DB 45 33 D2 33 FF 33 F6 48 8B E9 BB 03 00 00 00 85 D2 0F 84 81 00 00 00 0F B6 45 }
   condition:
      $sleep_mask
}