Extracted

• • Target

    a81d0099ecd54a32aa6b858544b82a809237cddc903b45b032618d93ef7f70f3

  • Size

    4.5MB

  • MD5

    d9825d1424b9058fd87f5bb6e808346a

  • SHA1

    21980e67e2bba65b9753021e9091c2ab7c99f3e3

  • SHA256

    a81d0099ecd54a32aa6b858544b82a809237cddc903b45b032618d93ef7f70f3

  • SHA512

    7359f0bc4f06f48b8a60764ba142bf7650cee52cfa8499142686c846abc8366faf6f8746573ec370eef64e6c92b5999e8e22f9521c4da91626d7d783883a0cef

  Score

  10^/10

  servhelperbackdoordiscoveryexploitpersistencetrojanupx

  • ServHelper

    ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.

    trojanbackdoorservhelper

  • Grants admin privileges

    Uses net.exe to modify the user's privileges.

  • Blocklisted process makes network request

  • Modifies RDP port number used by Windows

  • Possible privilege escalation attempt

    exploit

  • Sets DLL path for service in the registry

    persistence

  • Sets service image path in registry

    persistence

  • UPX packed file

    Detects executables packed with UPX/modified UPX open source packer.

    upx

  • Loads dropped DLL

  • Modifies file permissions

    discovery

  • Drops file in System32 directory

  behavioral1behavioral2