Extracted

• • Target

    clr.exe

  • Size

    6.0MB

  • MD5

    1e9f45329ffece31382bb884367f58df

  • SHA1

    52d3d55364d8c4d350231d38bfe6eb156cf8473f

  • SHA256

    8779c8ac97c45254bc243e2ee79b436d1a96bc56885dcaa72c4837790b2071fc

  • SHA512

    12272d5f20c42764992420aa1a178b16d7ef1873f2c9619bd8ac16e0eb9a0067a08a9d70863c1d3e95dd4a2aa19c081ae0baabaf3431f5068ea7191c8f4d6c62

  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

  • 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