nemty_successor_nefilimnephilim_ransomware

rule nemty_successor_nefilimnephilim_ransomware {
 meta:
    author = "Emir Erdogan"
    description = "Ransomware families NEMTY, Nefilim and Nephilim continue to evolve and merge, taking on aspects of other successful variants that aim to encrypt and extort.  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/lC8zLKPM5tEv"
    version = "0.01"
    created = "2021-03-09"
    product = "windows"
    service = "sysmon"
    mitre = "T1486, T1490, T1089"

  events:
(re.regex($selection.target.process.file.full_path, `.*\\cmd\.exe`) and re.regex($selection.target.process.command_line, `.*/c bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet & wmic shadowcopy delete`))

  condition:
    $selection
}