91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/*
|
|
*
|
|
* Copyright (c) 2011-2016 The University of Waikato, Hamilton, New Zealand.
|
|
* All rights reserved.
|
|
*
|
|
* This file is part of libprotoident.
|
|
*
|
|
* This code has been developed by the University of Waikato WAND
|
|
* research group. For further information please see http://www.wand.net.nz/
|
|
*
|
|
* libprotoident is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* libprotoident is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "libprotoident.h"
|
|
#include "proto_manager.h"
|
|
#include "proto_common.h"
|
|
|
|
/* https://www.trendmicro.com/vinfo/us/threat-encyclopedia/malware/bkdr_glupteba.yvg */
|
|
|
|
static inline bool match_glup_hello(uint32_t payload, uint32_t len) {
|
|
|
|
if (MATCH(payload, 'H', 'E', 'L', 'L'))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static inline bool match_glup_id(uint32_t payload, uint32_t len) {
|
|
|
|
/* ID changes from infected host to infected host, but I'm
|
|
* going to assume the ID has a similar length.
|
|
*/
|
|
|
|
if (len >= 18 && len <= 25) {
|
|
/* Always begins with @ */
|
|
if (MATCH(payload, '@', ANY, ANY, ANY))
|
|
return true;
|
|
}
|
|
return false;
|
|
|
|
}
|
|
|
|
static inline bool match_glupteba(lpi_data_t *data, lpi_module_t *mod UNUSED) {
|
|
|
|
if (match_glup_hello(data->payload[0], data->payload_len[0])) {
|
|
if (match_glup_id(data->payload[1], data->payload_len[1])) {
|
|
return true;
|
|
}
|
|
if (match_glup_hello(data->payload[1], data->payload_len[1])) {
|
|
return true;
|
|
}
|
|
}
|
|
if (match_glup_hello(data->payload[1], data->payload_len[1])) {
|
|
if (match_glup_id(data->payload[0], data->payload_len[0])) {
|
|
return true;
|
|
}
|
|
if (match_glup_hello(data->payload[0], data->payload_len[0])) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static lpi_module_t lpi_glupteba = {
|
|
LPI_PROTO_GLUPTEBA,
|
|
LPI_CATEGORY_MALWARE,
|
|
"GluptebaBackdoor",
|
|
50,
|
|
match_glupteba
|
|
};
|
|
|
|
void register_glupteba(LPIModuleMap *mod_map) {
|
|
register_protocol(&lpi_glupteba, mod_map);
|
|
}
|
|
|