Include sll1-add-hash32 as new custom API hash.

14 files changed, 799 insertions, 7 deletions

diff --git a/configure.ac b/configure.ac
index 3ecd8de..0a1ed1c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -631,9 +631,11 @@ AC_CONFIG_FILES([Makefile
                  pixmaps/Makefile
                  plugins/Makefile
                  plugins/apihashing/Makefile
+                 plugins/apihashing/classics/Makefile
+                 plugins/apihashing/custom/Makefile
                  plugins/apihashing/python/Makefile
                  plugins/apihashing/python/classics/Makefile
-                 plugins/apihashing/classics/Makefile
+                 plugins/apihashing/python/custom/Makefile
                  plugins/arm/Makefile
                  plugins/arm/python/Makefile
                  plugins/arm/python/v7/Makefile
diff --git a/plugins/apihashing/Makefile.am b/plugins/apihashing/Makefile.am
index 8ea8a1a..d73f8b0 100644
--- a/plugins/apihashing/Makefile.am
+++ b/plugins/apihashing/Makefile.am
@@ -45,7 +45,8 @@ libapihashing_la_SOURCES =					\
 
 libapihashing_la_LIBADD =					\
 	$(PYTHON3_LIBADD)						\
-	classics/libapihashingclassics.la
+	classics/libapihashingclassics.la		\
+	custom/libapihashingcustom.la
 
 libapihashing_la_CFLAGS = $(TOOLKIT_CFLAGS) $(LIBXML_CFLAGS) -I$(top_srcdir)/src
 
@@ -61,4 +62,4 @@ devdir = $(includedir)/chrysalide/$(subdir)
 dev_HEADERS = $(libapihashing_la_SOURCES:%c=)
 
 
-SUBDIRS = $(PYTHON3_SUBDIRS) classics
+SUBDIRS = $(PYTHON3_SUBDIRS) classics custom
diff --git a/plugins/apihashing/classics/ror13.c b/plugins/apihashing/classics/ror13.c
index 0b17cbe..e557804 100644
--- a/plugins/apihashing/classics/ror13.c
+++ b/plugins/apihashing/classics/ror13.c
@@ -72,7 +72,7 @@ static char *g_scan_ror13_modifier_get_path(const GScanRor13Modifier *, size_t *
 /* ---------------------------------------------------------------------------------- */
 
 
-/* Indique le type défini pour une transormation en encodage Ror13. */
+/* Indique le type défini pour une transormation en empreinte ror13. */
 G_DEFINE_TYPE(GScanRor13Modifier, g_scan_ror13_modifier, G_TYPE_API_HASH_MODIFIER);
 
 
diff --git a/plugins/apihashing/core.c b/plugins/apihashing/core.c
index 7e98f7c..dd480a8 100644
--- a/plugins/apihashing/core.c
+++ b/plugins/apihashing/core.c
@@ -35,6 +35,7 @@
 #include "classics/crc32.h"
 #include "classics/djb2.h"
 #include "classics/ror13.h"
+#include "custom/sll1-add-hash32.h"
 
 
 #ifdef INCLUDE_PYTHON3_BINDINGS_
@@ -83,6 +84,8 @@ G_MODULE_EXPORT bool chrysalide_plugin_init(GPluginModule *plugin)
     if (result) result = REGISTER_SCAN_MODIFIER(g_scan_djb2_modifier_new());
     if (result) result = REGISTER_SCAN_MODIFIER(g_scan_ror13_modifier_new());
 
+    if (result) result = REGISTER_SCAN_MODIFIER(g_scan_sll1_add_hash32_modifier_new());
+
 #ifdef INCLUDE_PYTHON3_BINDINGS
 
     if (result) result = add_apihashing_module_to_python_module();
diff --git a/plugins/apihashing/custom/Makefile.am b/plugins/apihashing/custom/Makefile.am
new file mode 100644
index 0000000..4c0359b
--- /dev/null
+++ b/plugins/apihashing/custom/Makefile.am
@@ -0,0 +1,12 @@
+
+noinst_LTLIBRARIES = libapihashingcustom.la
+
+libapihashingcustom_la_SOURCES =			\
+	sll1-add-hash32.h sll1-add-hash32.c
+
+libapihashingcustom_la_CFLAGS = $(TOOLKIT_CFLAGS) $(LIBXML_CFLAGS) -I$(top_srcdir)/src
+
+
+devdir = $(includedir)/chrysalide-$(subdir)
+
+dev_HEADERS = $(libapihashingcustom_la_SOURCES:%c=)
diff --git a/plugins/apihashing/custom/sll1-add-hash32.c b/plugins/apihashing/custom/sll1-add-hash32.c
new file mode 100644
index 0000000..de00f81
--- /dev/null
+++ b/plugins/apihashing/custom/sll1-add-hash32.c
@@ -0,0 +1,326 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * sll1-add-hash32.c - transormation en empreinte d'API sll1-add-hash32
+ *
+ * Copyright (C) 2023 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Chrysalide 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "sll1-add-hash32.h"
+
+
+#include <malloc.h>
+#include <string.h>
+
+
+#include <analysis/scan/patterns/modifier-int.h>
+
+
+
+
+/* ----------------------- RECHERCHE D'UN MOTIF DE TEXTE BRUT ----------------------- */
+
+
+/* Initialise la classe des transmissions en sll1-add-hash32. */
+static void g_scan_sll1_add_hash32_modifier_class_init(GScanSll1AddHash32ModifierClass *klass);
+
+/* Initialise une instance de transmission en sll1-add-hash32. */
+static void g_scan_sll1_add_hash32_modifier_init(GScanSll1AddHash32Modifier *);
+
+/* Supprime toutes les références externes. */
+static void g_scan_sll1_add_hash32_modifier_dispose(GScanSll1AddHash32Modifier *);
+
+/* Procède à la libération totale de la mémoire. */
+static void g_scan_sll1_add_hash32_modifier_finalize(GScanSll1AddHash32Modifier *);
+
+
+
+/* --------------------- IMPLEMENTATION DES FONCTIONS DE CLASSE --------------------- */
+
+
+/* Fournit le nom d'appel d'un modificateur pour motif. */
+static char *g_scan_sll1_add_hash32_modifier_get_name(const GScanSll1AddHash32Modifier *);
+
+/* Calcule l'empreinte sll1-add-hash32 d'un motif de recherche. */
+static uint32_t compute_sll1_add_hash32(const sized_binary_t *);
+
+/* Transforme une séquence d'octets pour motif de recherche. */
+static bool g_scan_sll1_add_hash32_modifier_transform(const GScanSll1AddHash32Modifier *, const sized_binary_t *, size_t, sized_binary_t **, size_t *);
+
+/* Retrouve l'origine d'une correspondance à partir d'un indice. */
+static char *g_scan_sll1_add_hash32_modifier_get_path(const GScanSll1AddHash32Modifier *, size_t *);
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/*                         RECHERCHE D'UN MOTIF DE TEXTE BRUT                         */
+/* ---------------------------------------------------------------------------------- */
+
+
+/* Indique le type défini pour une transormation en empreinte sll1-add-hash32. */
+G_DEFINE_TYPE(GScanSll1AddHash32Modifier, g_scan_sll1_add_hash32_modifier, G_TYPE_API_HASH_MODIFIER);
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : klass = classe à initialiser.                                *
+*                                                                             *
+*  Description : Initialise la classe des transmissions en sll1-add-hash32.   *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_scan_sll1_add_hash32_modifier_class_init(GScanSll1AddHash32ModifierClass *klass)
+{
+    GObjectClass *object;                   /* Autre version de la classe  */
+    GScanTokenModifierClass *modifier;      /* Version de classe parente   */
+
+    object = G_OBJECT_CLASS(klass);
+
+    object->dispose = (GObjectFinalizeFunc/* ! */)g_scan_sll1_add_hash32_modifier_dispose;
+    object->finalize = (GObjectFinalizeFunc)g_scan_sll1_add_hash32_modifier_finalize;
+
+    modifier = G_SCAN_TOKEN_MODIFIER_CLASS(klass);
+
+    modifier->get_name = (get_scan_modifier_name_fc)g_scan_sll1_add_hash32_modifier_get_name;
+
+    modifier->transform = (transform_scan_token_fc)g_scan_sll1_add_hash32_modifier_transform;
+    modifier->get_path = (get_modifier_path)g_scan_sll1_add_hash32_modifier_get_path;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : modifier = instance à initialiser.                           *
+*                                                                             *
+*  Description : Initialise une instance de transmission en sll1-add-hash32.  *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_scan_sll1_add_hash32_modifier_init(GScanSll1AddHash32Modifier *modifier)
+{
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : modifier = instance d'objet GLib à traiter.                  *
+*                                                                             *
+*  Description : Supprime toutes les références externes.                     *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_scan_sll1_add_hash32_modifier_dispose(GScanSll1AddHash32Modifier *modifier)
+{
+    G_OBJECT_CLASS(g_scan_sll1_add_hash32_modifier_parent_class)->dispose(G_OBJECT(modifier));
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : modifier = instance d'objet GLib à traiter.                  *
+*                                                                             *
+*  Description : Procède à la libération totale de la mémoire.                *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_scan_sll1_add_hash32_modifier_finalize(GScanSll1AddHash32Modifier *modifier)
+{
+    G_OBJECT_CLASS(g_scan_sll1_add_hash32_modifier_parent_class)->finalize(G_OBJECT(modifier));
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Construit un modificateur vers empreintes sll1-add-hash32.   *
+*                                                                             *
+*  Retour      : Mécanisme mis en place.                                      *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+GScanTokenModifier *g_scan_sll1_add_hash32_modifier_new(void)
+{
+    GScanTokenModifier *result;                    /* Structure à retourner       */
+
+    result = g_object_new(G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER, NULL);
+
+    return result;
+
+}
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/*                       IMPLEMENTATION DES FONCTIONS DE CLASSE                       */
+/* ---------------------------------------------------------------------------------- */
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : modifier = modificateur à consulter.                         *
+*                                                                             *
+*  Description : Fournit le nom d'appel d'un modificateur pour motif.         *
+*                                                                             *
+*  Retour      : Désignation humaine.                                         *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static char *g_scan_sll1_add_hash32_modifier_get_name(const GScanSll1AddHash32Modifier *modifier)
+{
+    char *result;                           /* Désignation à retourner     */
+
+    result = strdup("sll1-add-hash32");
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : src = séquence d'octets à traiter.                           *
+*                                                                             *
+*  Description : Calcule l'empreinte sll1-add-hash32 d'un motif de recherche. *
+*                                                                             *
+*  Retour      : Valeur entière de l'empreinte déterminée.                    *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static uint32_t compute_sll1_add_hash32(const sized_binary_t *src)
+{
+    uint32_t result;                        /* Valeur à retourner          */
+    size_t i;                               /* Boucle de parcours          */
+
+    result = 0;
+
+    for (i = 0; i < src->len; i++)
+    {
+        result += (src->data[i] | 0x60);
+        result <<= 1;
+    }
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : modifier = modificateur à solliciter.                        *
+*                src      = séquences d'octets à traiter.                     *
+*                scount   = quantité de ces séquences.                        *
+*                dest     = nouvelle(s) séquence(s) d'octets obtenue(s) [OUT] *
+*                dcount   = quantité de ces séquences.                        *
+*                                                                             *
+*  Description : Transforme une séquence d'octets pour motif de recherche.    *
+*                                                                             *
+*  Retour      : Bilan de l'opération : succès ou échec.                      *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static bool g_scan_sll1_add_hash32_modifier_transform(const GScanSll1AddHash32Modifier *modifier, const sized_binary_t *src, size_t scount, sized_binary_t **dest, size_t *dcount)
+{
+    bool result;                            /* Bilan d'opération à renvoyer*/
+    sized_binary_t *binary;                 /* Raccourci vers le stockage  */
+    size_t i;                               /* Boucle de parcours #1       */
+    const sized_binary_t *_src;             /* Source courante             */
+    uint32_t hash;                          /* Valeur d'empreinte calculée */
+
+    result = true;
+
+    *dcount = scount;
+    *dest = calloc(*dcount, sizeof(sized_binary_t));
+
+    binary = &(*dest)[0];
+
+    for (i = 0; i < scount; i++, binary++)
+    {
+        _src = src + i;
+
+        hash = compute_sll1_add_hash32(_src);
+
+        binary->data = malloc(sizeof(hash) * sizeof(bin_t));
+        binary->len = sizeof(hash);
+
+        memcpy(binary->data, &hash, sizeof(hash));
+
+    }
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : modifier = modificateur à consulter.                         *
+*                index    = indice de la combinaison ciblée. [OUT]            *
+*                                                                             *
+*  Description : Retrouve l'origine d'une correspondance à partir d'un indice.*
+*                                                                             *
+*  Retour      : Version humainement lisible de la combinaison.               *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static char *g_scan_sll1_add_hash32_modifier_get_path(const GScanSll1AddHash32Modifier *modifier, size_t *index)
+{
+    char *result;                           /* Combinaison à retourner     */
+
+    if (*index > 0)
+    {
+        result = NULL;
+        (*index)--;
+    }
+
+    else
+        result = strdup("sll1-add-hash32");
+
+    return result;
+
+}
diff --git a/plugins/apihashing/custom/sll1-add-hash32.h b/plugins/apihashing/custom/sll1-add-hash32.h
new file mode 100644
index 0000000..39abee2
--- /dev/null
+++ b/plugins/apihashing/custom/sll1-add-hash32.h
@@ -0,0 +1,58 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * sll1-add-hash32.h - prototypes pour la transormation en empreinte d'API sll1-add-hash32
+ *
+ * Copyright (C) 2023 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Chrysalide 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef _PLUGINS_APIHASHING_CUSTOM_SLL1_ADD_HASH32_H
+#define _PLUGINS_APIHASHING_CUSTOM_SLL1_ADD_HASH32_H
+
+
+#include <glib-object.h>
+
+
+#include "../apihash.h"
+
+
+
+#define G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER            g_scan_sll1_add_hash32_modifier_get_type()
+#define G_SCAN_SLL1_ADD_HASH32_MODIFIER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER, GScanSll1AddHash32Modifier))
+#define G_IS_SCAN_SLL1_ADD_HASH32_MODIFIER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER))
+#define G_SCAN_SLL1_ADD_HASH32_MODIFIER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER, GScanSll1AddHash32ModifierClass))
+#define G_IS_SCAN_SLL1_ADD_HASH32_MODIFIER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER))
+#define G_SCAN_SLL1_ADD_HASH32_MODIFIER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER, GScanSll1AddHash32ModifierClass))
+
+
+/* Transormation en empreinte d'API sll1_add_hash32 (instance) */
+typedef GApiHashModifier GScanSll1AddHash32Modifier;
+
+/* Transormation en empreinte d'API sll1_add_hash32 (classe) */
+typedef GApiHashModifierClass GScanSll1AddHash32ModifierClass;
+
+
+/* Indique le type défini pour une transormation en empreinte sll1-add-hash32. */
+GType g_scan_sll1_add_hash32_modifier_get_type(void);
+
+/* Construit un modificateur vers empreintes sll1-add-hash32. */
+GScanTokenModifier *g_scan_sll1_add_hash32_modifier_new(void);
+
+
+
+#endif  /* _PLUGINS_APIHASHING_CUSTOM_SLL1_ADD_HASH32_H */
diff --git a/plugins/apihashing/python/classics/module.h b/plugins/apihashing/python/classics/module.h
index ee0e098..10c817d 100644
--- a/plugins/apihashing/python/classics/module.h
+++ b/plugins/apihashing/python/classics/module.h
@@ -22,8 +22,8 @@
  */
 
 
-#ifndef _PLUGINS_ENCODINGS_PYTHON_ROST_MODULE_H
-#define _PLUGINS_ENCODINGS_PYTHON_ROST_MODULE_H
+#ifndef _PLUGINS_APIHASHING_PYTHON_CLASSICS_MODULE_H
+#define _PLUGINS_APIHASHING_PYTHON_CLASSICS_MODULE_H
 
 
 #include <stdbool.h>
@@ -35,4 +35,4 @@ bool register_apihashing_classics_modifiers(void);
 
 
 
-#endif  /* _PLUGINS_ENCODINGS_PYTHON_ROST_MODULE_H */
+#endif  /* _PLUGINS_APIHASHING_PYTHON_CLASSICS_MODULE_H */
diff --git a/plugins/apihashing/python/custom/Makefile.am b/plugins/apihashing/python/custom/Makefile.am
new file mode 100644
index 0000000..04b0f81
--- /dev/null
+++ b/plugins/apihashing/python/custom/Makefile.am
@@ -0,0 +1,14 @@
+
+noinst_LTLIBRARIES = libapihashingpythoncustom.la
+
+libapihashingpythoncustom_la_SOURCES = 		\
+	module.h module.c						\
+	sll1-add-hash32.h sll1-add-hash32.c
+
+libapihashingpythoncustom_la_CFLAGS = $(TOOLKIT_CFLAGS) $(LIBXML_CFLAGS) $(LIBPYTHON_CFLAGS) $(LIBPYGOBJECT_CFLAGS) \
+	-I$(top_srcdir)/src -DNO_IMPORT_PYGOBJECT
+
+
+devdir = $(includedir)/chrysalide-$(subdir)
+
+dev_HEADERS = $(libapihashingpythoncustom_la_SOURCES:%c=)
diff --git a/plugins/apihashing/python/custom/module.c b/plugins/apihashing/python/custom/module.c
new file mode 100644
index 0000000..cc0afff
--- /dev/null
+++ b/plugins/apihashing/python/custom/module.c
@@ -0,0 +1,64 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * module.c - intégration du répertoire custom en tant que module
+ *
+ * Copyright (C) 2023 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Chrysalide 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include "module.h"
+
+
+#include <assert.h>
+#include <Python.h>
+
+
+#include <plugins/pychrysalide/access.h>
+#include <plugins/pychrysalide/helpers.h>
+
+
+#include "sll1-add-hash32.h"
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Intègre les modificateurs d'empreintes particulières à ROST. *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool register_apihashing_custom_modifiers(void)
+{
+    bool result;                            /* Bilan à retourner           */
+
+    result = true;
+
+    if (result) result = ensure_python_scan_sll1_add_hash32_modifier_is_registered();
+
+    assert(result);
+
+    return result;
+
+}
diff --git a/plugins/apihashing/python/custom/module.h b/plugins/apihashing/python/custom/module.h
new file mode 100644
index 0000000..9073651
--- /dev/null
+++ b/plugins/apihashing/python/custom/module.h
@@ -0,0 +1,38 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * module.h - prototypes pour l'intégration du répertoire custom en tant que module
+ *
+ * Copyright (C) 2023 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Chrysalide 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#ifndef _PLUGINS_APIHASHING_PYTHON_CUSTOM_MODULE_H
+#define _PLUGINS_APIHASHING_PYTHON_CUSTOM_MODULE_H
+
+
+#include <stdbool.h>
+
+
+
+/* Intègre les modificateurs d'empreintes particulières à ROST. */
+bool register_apihashing_custom_modifiers(void);
+
+
+
+#endif  /* _PLUGINS_APIHASHING_PYTHON_CUSTOM_MODULE_H */
diff --git a/plugins/apihashing/python/custom/sll1-add-hash32.c b/plugins/apihashing/python/custom/sll1-add-hash32.c
new file mode 100644
index 0000000..c63fcf3
--- /dev/null
+++ b/plugins/apihashing/python/custom/sll1-add-hash32.c
@@ -0,0 +1,211 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * sll1-add-hash32.c - équivalent Python du fichier "plugins/apihashing/custom/sll1-add-hash32.c"
+ *
+ * Copyright (C) 2023 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Chrysalide 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include "sll1-add-hash32.h"
+
+
+#include <pygobject.h>
+
+
+#include <i18n.h>
+#include <plugins/pychrysalide/access.h>
+#include <plugins/pychrysalide/helpers.h>
+
+
+#include "../apihash.h"
+#include "../../custom/sll1-add-hash32.h"
+
+
+
+CREATE_DYN_CONSTRUCTOR(scan_sll1_add_hash32_modifier, G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER);
+
+/* Initialise une instance sur la base du dérivé de GObject. */
+static int py_scan_sll1_add_hash32_modifier_init(PyObject *, PyObject *, PyObject *);
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : self = objet à initialiser (théoriquement).                  *
+*                args = arguments fournis à l'appel.                          *
+*                kwds = arguments de type key=val fournis.                    *
+*                                                                             *
+*  Description : Initialise une instance sur la base du dérivé de GObject.    *
+*                                                                             *
+*  Retour      : 0.                                                           *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static int py_scan_sll1_add_hash32_modifier_init(PyObject *self, PyObject *args, PyObject *kwds)
+{
+    int ret;                                /* Bilan de lecture des args.  */
+
+#define SCAN_SLL1_ADD_HASH32_MODIFIER_DOC                           \
+    "The *Sll1AddHash32Modifier* class transforms a byte pattern"   \
+    " using a variation of the sll1 algorithm.\n"                   \
+    "\n"                                                            \
+    "Instances can be created using the following constructor:\n"   \
+    "\n"                                                            \
+    "    Sll1AddHash32Modifier()"
+
+    /* Initialisation d'un objet GLib */
+
+    ret = forward_pygobjet_init(self);
+    if (ret == -1) return -1;
+
+    return 0;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Fournit un accès à une définition de type à diffuser.        *
+*                                                                             *
+*  Retour      : Définition d'objet pour Python.                              *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+PyTypeObject *get_python_scan_sll1_add_hash32_modifier_type(void)
+{
+    static PyMethodDef py_scan_sll1_add_hash32_modifier_methods[] = {
+        { NULL }
+    };
+
+    static PyGetSetDef py_scan_sll1_add_hash32_modifier_getseters[] = {
+        { NULL }
+    };
+
+    static PyTypeObject py_scan_sll1_add_hash32_modifier_type = {
+
+        PyVarObject_HEAD_INIT(NULL, 0)
+
+        .tp_name        = "pychrysalide.analysis.scan.patterns.modifiers.Sll1AddHash32Modifier",
+        .tp_basicsize   = sizeof(PyGObject),
+
+        .tp_flags       = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+
+        .tp_doc         = SCAN_SLL1_ADD_HASH32_MODIFIER_DOC,
+
+        .tp_methods     = py_scan_sll1_add_hash32_modifier_methods,
+        .tp_getset      = py_scan_sll1_add_hash32_modifier_getseters,
+
+        .tp_init        = py_scan_sll1_add_hash32_modifier_init,
+        .tp_new         = py_scan_sll1_add_hash32_modifier_new,
+
+    };
+
+    return &py_scan_sll1_add_hash32_modifier_type;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Prend en charge l'objet '...Sll1AddHash32Modifier'.          *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool ensure_python_scan_sll1_add_hash32_modifier_is_registered(void)
+{
+    PyTypeObject *type;                     /* Type Sll1AddHash32Modifier  */
+    PyObject *module;                       /* Module à recompléter        */
+    PyObject *dict;                         /* Dictionnaire du module      */
+
+    type = get_python_scan_sll1_add_hash32_modifier_type();
+
+    if (!PyType_HasFeature(type, Py_TPFLAGS_READY))
+    {
+        module = get_access_to_python_module("pychrysalide.analysis.scan.patterns.modifiers");
+
+        dict = PyModule_GetDict(module);
+
+        if (!ensure_python_api_hash_modifier_is_registered())
+            return false;
+
+        if (!register_class_for_pygobject(dict, G_TYPE_SCAN_SLL1_ADD_HASH32_MODIFIER, type))
+            return false;
+
+    }
+
+    return true;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : arg = argument quelconque à tenter de convertir.             *
+*                dst = destination des valeurs récupérées en cas de succès.   *
+*                                                                             *
+*  Description : Tente de convertir en empreinte sll1-add-hash32.             *
+*                                                                             *
+*  Retour      : Bilan de l'opération, voire indications supplémentaires.     *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+int convert_to_scan_sll1_add_hash32_modifier(PyObject *arg, void *dst)
+{
+    int result;                             /* Bilan à retourner           */
+
+    result = PyObject_IsInstance(arg, (PyObject *)get_python_scan_sll1_add_hash32_modifier_type());
+
+    switch (result)
+    {
+        case -1:
+            /* L'exception est déjà fixée par Python */
+            result = 0;
+            break;
+
+        case 0:
+            PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to sll1-add-hash32 modifier");
+            break;
+
+        case 1:
+            *((GScanSll1AddHash32Modifier **)dst) = G_SCAN_SLL1_ADD_HASH32_MODIFIER(pygobject_get(arg));
+            break;
+
+        default:
+            assert(false);
+            break;
+
+    }
+
+    return result;
+
+}
diff --git a/plugins/apihashing/python/custom/sll1-add-hash32.h b/plugins/apihashing/python/custom/sll1-add-hash32.h
new file mode 100644
index 0000000..bf11c34
--- /dev/null
+++ b/plugins/apihashing/python/custom/sll1-add-hash32.h
@@ -0,0 +1,45 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * sll1-add-hash32.h - équivalent Python du fichier "plugins/apihashing/custom/sll1-add-hash32.h"
+ *
+ * Copyright (C) 2023 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Chrysalide 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#ifndef _PLUGINS_APIHASHING_PYTHON_CUSTOM_SLL1_ADD_HASH32_H
+#define _PLUGINS_APIHASHING_PYTHON_CUSTOM_SLL1_ADD_HASH32_H
+
+
+#include <Python.h>
+#include <stdbool.h>
+
+
+
+/* Fournit un accès à une définition de type à diffuser. */
+PyTypeObject *get_python_scan_sll1_add_hash32_modifier_type(void);
+
+/* Prend en charge l'objet 'pychrysalide.analysis.scan.patterns.modifiers.Sll1AddHash32Modifier'. */
+bool ensure_python_scan_sll1_add_hash32_modifier_is_registered(void);
+
+/* Tente de convertir en empreinte sll1-add-hash32. */
+int convert_to_scan_sll1_add_hash32_modifier(PyObject *, void *);
+
+
+
+#endif  /* _PLUGINS_APIHASHING_PYTHON_CUSTOM_SLL1_ADD_HASH32_H */
diff --git a/tests/analysis/scan/pyapi.py b/tests/analysis/scan/pyapi.py
index e81e947..cfd12b3 100644
--- a/tests/analysis/scan/pyapi.py
+++ b/tests/analysis/scan/pyapi.py
@@ -165,6 +165,7 @@ class TestRostPythonAPI(ChrysalideTestCase):
 
         # Example :
         #  - ?? (2021) - https://www.threatspike.com/blogs/reflective-dll-injection
+        #  - Mustang Panda (2022) - https://blog.talosintelligence.com/mustang-panda-targets-europe/
 
         mod = find_token_modifiers_for_name('ror13')
         self.assertIsNotNone(mod)
@@ -174,6 +175,23 @@ class TestRostPythonAPI(ChrysalideTestCase):
 
         self.assertEqual(b2i(transformed[0]), 0x7c0dfcaa)
 
+        source = b'VirtualAlloc'
+        transformed = mod.transform(source)
+
+        self.assertEqual(b2i(transformed[0]), 0x91afca54)
+
+
+        # Example
+        #  - Energetic Bear (2019) - https://insights.sei.cmu.edu/blog/api-hashing-tool-imagine-that/
+
+        mod = find_token_modifiers_for_name('sll1-add-hash32')
+        self.assertIsNotNone(mod)
+
+        source = b'LoadLibraryA'
+        transformed = mod.transform(source)
+
+        self.assertEqual(b2i(transformed[0]), 0x000d5786)
+
 
     def testBytePatternModifiersAPI(self):
         """Validate the API for pattern modifiers."""