RemoteNC detection

# SPDX-FileCopyrightText: 2003 J.Mlodzianowski
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.11855");
  script_version("2023-08-01T13:29:10+0000");
  script_tag(name:"last_modification", value:"2023-08-01 13:29:10 +0000 (Tue, 01 Aug 2023)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_name("RemoteNC detection");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2003 J.Mlodzianowski");
  script_family("Malware");
  script_dependencies("find_service2.nasl", "JM_FsSniffer.nasl");
  script_require_ports("Services/RemoteNC", 19340);

  script_xref(name:"URL", value:"http://www.rapter.net/jm2.htm");

  script_tag(name:"solution", value:"See the references for details on the removal.");

  script_tag(name:"impact", value:"An attacker may use it to steal your passwords.");

  script_tag(name:"summary", value:"This host appears to be running RemoteNC on this port.

  RemoteNC is a Backdoor which allows an intruder gain remote control of your computer.");

  script_tag(name:"solution_type", value:"Mitigation");
  script_tag(name:"qod_type", value:"remote_analysis");

  exit(0);
}

include("misc_func.inc");
include("port_service_func.inc");

port = service_get_port( default:19340, proto:"RemoteNC" );
soc = open_sock_tcp( port );
if( ! soc )
  exit( 0 );

r = recv( socket:soc, min:1, length:30 );
close( soc );
if( ! r )
  exit( 0 );

if( "RemoteNC Control Password:" >< r ) {
  security_message( port:port );
  exit( 0 );
}

exit( 99 );