rules/RedGhost_Linux.yara

rule RedGhost_Linux: postexploitation linuxmalware
{
    meta:

        Author = "Adam M. Swanda"
        Website = "https://www.deadbits.org"
        Repo = "https://github.com/deadbits/yara-rules"
        Date = "2019-08-07"
        Reference = "https://github.com/d4rk007/RedGhost/"

    strings:
        $name = "[ R E D G H O S T - P O S T  E X P L O I T - T O O L]" ascii

        $feature0 = "Payloads" ascii
        $feature1 = "SudoInject" ascii
        $feature2 = "lsInject" ascii
        $feature3 = "Crontab" ascii
        $feature4 = "GetRoot" ascii
        $feature5 = "Clearlogs" ascii
        $feature6 = "MassinfoGrab" ascii
        $feature7 = "CheckVM" ascii
        $feature8 = "MemoryExec" ascii
        $feature9 = "BanIP" ascii

        $func0 = "checkVM(){" ascii
        $func1 = "memoryexec(){" ascii
        $func2 = "banip(){" ascii
        $func3 = "linprivesc(){" ascii
        $func4 = "dirty(){" ascii
        $func5 = "Ocr(){" ascii
        $func6 = "clearlog(){" ascii
        $func7 = "conmethods(){" ascii
        $func8 = "add2sys(){" ascii

        //$header = "#!/bin/bash" ascii

    condition:
      // #!/bin/bash header
      (uint16be(0x0) == 0x2321 and 
      for any i in (0..64) : (
          uint16be(i) == 0x2f62 and uint8(i+2) == 0x68
      ))
      and
      ($name or 5 of them)
}