params.h

Go to the documentation of this file.

#pragma once
#include <sstream>
 
#include "pe_sieve.h"
#include "params_info/pe_sieve_params_info.h"
 
#include <paramkit.h>
 
using namespace paramkit;
using namespace pesieve;
 
//scan options:
#define PARAM_PID "pid"
#define PARAM_SHELLCODE "shellc"
#define PARAM_OBFUSCATED "obfusc"
#define PARAM_THREADS "threads"
#define PARAM_DATA "data"
#define PARAM_IAT "iat"
#define PARAM_MODULES_IGNORE "mignore"
#define PARAM_REFLECTION "refl"
#define PARAM_DOTNET_POLICY "dnet"
 
//dump options:
#define PARAM_IMP_REC "imp"
#define PARAM_DUMP_MODE "dmode"
#define PARAM_REBASE "rebase"
//output options:
#define PARAM_OUT_FILTER "ofilter"
#define PARAM_RESULTS_FILTER "report"
#define PARAM_QUIET "quiet"
#define PARAM_JSON "json"
#define PARAM_JSON_LVL "jlvl"
#define PARAM_DIR "dir"
#define PARAM_MINIDUMP "minidmp"
#define PARAM_PATTERN "pattern"
 
 
bool alloc_strparam(PARAM_STRING& strparam, ULONG len)
{
    if (strparam.buffer != nullptr) { // already allocated
        return false;
    }
    strparam.buffer = (char*)calloc(len + 1, sizeof(char));
    if (strparam.buffer) {
        strparam.length = len;
        return true;
    }
    return false;
}
 
void free_strparam(PARAM_STRING& strparam)
{
    free(strparam.buffer);
    strparam.buffer = nullptr;
    strparam.length = 0;
}
 
class PEsieveParams : public Params
{
public:
    PEsieveParams(const std::string &version)
        : Params(version)
    {
        this->addParam(new IntParam(PARAM_PID, true));
        this->setInfo(PARAM_PID, "Set the PID of the target process.");
 
        EnumParam *enumParam = new EnumParam(PARAM_IMP_REC, "imprec_mode", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_IMP_REC, "Set in which mode the ImportTable should be recovered");
            for (size_t i = 0; i < PE_IMPREC_MODES_COUNT; i++) {
                t_imprec_mode mode = (t_imprec_mode)(i);
                enumParam->addEnumValue(mode, imprec_mode_to_id(mode), translate_imprec_mode(mode));
            }
        }
 
        enumParam = new EnumParam(PARAM_OUT_FILTER, "ofilter_id", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_OUT_FILTER, "Filter the dumped output.");
            for (size_t i = 0; i < OUT_FILTERS_COUNT; i++) {
                t_output_filter mode = (t_output_filter)(i);
                enumParam->addEnumValue(mode, translate_out_filter(mode));
            }
        }
 
        enumParam = new EnumParam(PARAM_RESULTS_FILTER, "result_type", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_RESULTS_FILTER, "Define what type of results are reported.");
            for (size_t i = SHOW_SUSPICIOUS; i < SHOW_FILTERS_COUNT; i++) {
                t_results_filter mode = (t_results_filter)(i);
                std::string info = translate_results_filter(mode);
                if (info.empty()) continue;
                enumParam->addEnumValue(mode, results_filter_to_id(i), info);
            }
        }
 
        this->addParam(new StringListParam(PARAM_MODULES_IGNORE, false, PARAM_LIST_SEPARATOR));
        {
            std::stringstream ss1;
            ss1 << "Do not scan module/s with given name/s.";
            std::stringstream ss2;
            ss2 << INFO_SPACER << "Example: kernel32.dll" << PARAM_LIST_SEPARATOR << "user32.dll";
            this->setInfo(PARAM_MODULES_IGNORE, ss1.str(), ss2.str());
        }
 
        this->addParam(new BoolParam(PARAM_REBASE, false));
        this->setInfo(PARAM_REBASE, "Rebase the module to its original base (if known).");
 
        this->addParam(new BoolParam(PARAM_QUIET, false));
        this->setInfo(PARAM_QUIET, "Print only the summary. Do not log on stdout during the scan.");
 
        this->addParam(new BoolParam(PARAM_JSON, false));
        this->setInfo(PARAM_JSON, "Print the JSON report as the summary.");
        //
        //PARAM_JSON_LVL
        enumParam = new EnumParam(PARAM_JSON_LVL, "json_lvl", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_JSON_LVL, "Level of details of the JSON report.");
            for (size_t i = 0; i < JSON_LVL_COUNT; i++) {
                t_json_level mode = (t_json_level)(i);
                enumParam->addEnumValue(mode, translate_json_level(mode));
            }
        }
 
        this->addParam(new BoolParam(PARAM_MINIDUMP, false));
        this->setInfo(PARAM_MINIDUMP, "Create a minidump of the full suspicious process.");
 
        //PARAM_SHELLCODE
        enumParam = new EnumParam(PARAM_SHELLCODE, "shellc_mode", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_SHELLCODE, "Detect shellcode implants (by patterns or statistics). ");
            for (size_t i = 0; i < SHELLC_COUNT; i++) {
                t_shellc_mode mode = (t_shellc_mode)(i);
                enumParam->addEnumValue(mode, shellc_mode_mode_to_id(mode), translate_shellc_mode(mode));
            }
        }
        
        this->addParam(new StringParam(PARAM_PATTERN, false));
        this->setInfo(PARAM_PATTERN, "Set additional shellcode patterns (file in the SIG format).");
 
        //PARAM_OBFUSCATED
        enumParam = new EnumParam(PARAM_OBFUSCATED, "obfusc_mode", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_OBFUSCATED, "Detect encrypted content, and possible obfuscated shellcodes.");
            for (size_t i = 0; i < OBFUSC_COUNT; i++) {
                t_obfusc_mode mode = (t_obfusc_mode)(i);
                enumParam->addEnumValue(mode, obfusc_mode_mode_to_id(mode), translate_obfusc_mode(mode));
            }
        }
 
        //PARAM_THREADS
        this->addParam(new BoolParam(PARAM_THREADS, false));
        this->setInfo(PARAM_THREADS, "Scan threads' callstack. Detect shellcodes, incl. 'sleeping beacons'.");
 
        //PARAM_REFLECTION
        this->addParam(new BoolParam(PARAM_REFLECTION, false));
        this->setInfo(PARAM_REFLECTION, 
            "Make a process reflection before scan.", 
            std::string(INFO_SPACER) + "This allows i.e. to force-read inaccessible pages."
        );
 
        //PARAM_IAT
        enumParam = new EnumParam(PARAM_IAT, "iat_scan_mode", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_IAT, "Scan for IAT hooks.");
            for (size_t i = 0; i < PE_IATS_MODES_COUNT; i++) {
                t_iat_scan_mode mode = (t_iat_scan_mode)(i);
                enumParam->addEnumValue(mode, translate_iat_scan_mode(mode));
            }
        }
 
        //PARAM_DOTNET_POLICY
        enumParam = new EnumParam(PARAM_DOTNET_POLICY, "dotnet_policy", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_DOTNET_POLICY, "Set the policy for scanning managed processes (.NET).");
            for (size_t i = 0; i < PE_DNET_COUNT; i++) {
                t_dotnet_policy mode = (t_dotnet_policy)(i);
                enumParam->addEnumValue(mode, translate_dotnet_policy(mode));
            }
        }
 
        //PARAM_DATA
        enumParam = new EnumParam(PARAM_DATA, "data_scan_mode", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_DATA, "Set if non-executable pages should be scanned.");
            for (size_t i = 0; i < PE_DATA_COUNT; i++) {
                t_data_scan_mode mode = (t_data_scan_mode)(i);
                enumParam->addEnumValue(mode, translate_data_mode(mode));
            }
        }
 
        //PARAM_DUMP_MODE
        enumParam = new EnumParam(PARAM_DUMP_MODE, "dump_mode", false);
        if (enumParam) {
            this->addParam(enumParam);
            this->setInfo(PARAM_DUMP_MODE, "Set in which mode the detected PE files should be dumped.");
            for (size_t i = 0; i < PE_DUMP_MODES_COUNT; i++) {
                peconv::t_pe_dump_mode mode = (peconv::t_pe_dump_mode)(i);
                enumParam->addEnumValue(mode, dump_mode_to_id(mode), translate_dump_mode(mode));
            }
        }
 
        //PARAM_DIR
        this->addParam(new StringParam(PARAM_DIR, false));
        this->setInfo(PARAM_DIR, "Set a root directory for the output (default: current directory).");
 
        //optional: group parameters
        std::string str_group = "5. output options";
        this->addGroup(new ParamGroup(str_group));
        this->addParamToGroup(PARAM_DIR, str_group);
        this->addParamToGroup(PARAM_JSON, str_group);
        this->addParamToGroup(PARAM_JSON_LVL, str_group);
        this->addParamToGroup(PARAM_OUT_FILTER, str_group);
        this->addParamToGroup(PARAM_RESULTS_FILTER, str_group);
 
        str_group = "1. scanner settings";
        this->addGroup(new ParamGroup(str_group));
        this->addParamToGroup(PARAM_QUIET, str_group);
        this->addParamToGroup(PARAM_REFLECTION, str_group);
 
        str_group = "3. scan options";
        this->addGroup(new ParamGroup(str_group));
        this->addParamToGroup(PARAM_DATA, str_group);
        this->addParamToGroup(PARAM_IAT, str_group);
        this->addParamToGroup(PARAM_SHELLCODE, str_group);
        this->addParamToGroup(PARAM_OBFUSCATED, str_group);
        this->addParamToGroup(PARAM_THREADS, str_group);
        this->addParamToGroup(PARAM_PATTERN, str_group);
 
        str_group = "4. dump options";
        this->addGroup(new ParamGroup(str_group));
        this->addParamToGroup(PARAM_MINIDUMP, str_group);
        this->addParamToGroup(PARAM_IMP_REC, str_group);
        this->addParamToGroup(PARAM_DUMP_MODE, str_group);
        this->addParamToGroup(PARAM_REBASE, str_group);
 
        str_group = "2. scan exclusions";
        this->addGroup(new ParamGroup(str_group));
        this->addParamToGroup(PARAM_DOTNET_POLICY, str_group);
        this->addParamToGroup(PARAM_MODULES_IGNORE, str_group);
    }
 
    bool fillStringParam(const std::string &paramId, PARAM_STRING &strparam)
    {
        StringParam* myStr = dynamic_cast<StringParam*>(this->getParam(paramId));
        if (!myStr || !myStr->isSet()) {
            return false;
        }
        std::string val = myStr->valToString();
        const size_t len = val.length();
        if (!len) {
            return false;
        }
        alloc_strparam(strparam, len);
        bool is_copied = false;
        if (strparam.buffer) {
            is_copied = copyCStr<StringParam>(paramId, strparam.buffer, strparam.length);
        }
        return is_copied;
    }
 
    void fillStruct(t_params &ps)
    {
        copyVal<IntParam>(PARAM_PID, ps.pid);
        copyVal<EnumParam>(PARAM_IMP_REC, ps.imprec_mode);
        copyVal<EnumParam>(PARAM_OUT_FILTER, ps.out_filter);
        copyVal<EnumParam>(PARAM_RESULTS_FILTER, ps.results_filter);
 
        fillStringParam(PARAM_MODULES_IGNORE, ps.modules_ignored);
        copyVal<BoolParam>(PARAM_REBASE, ps.rebase);
        copyVal<BoolParam>(PARAM_QUIET, ps.quiet);
        copyVal<BoolParam>(PARAM_JSON, ps.json_output);
 
        copyVal<EnumParam>(PARAM_JSON_LVL, ps.json_lvl);
 
        copyVal<BoolParam>(PARAM_MINIDUMP, ps.minidump);
        copyVal<EnumParam>(PARAM_SHELLCODE, ps.shellcode);
        copyVal<EnumParam>(PARAM_OBFUSCATED, ps.obfuscated);
        copyVal<BoolParam>(PARAM_THREADS, ps.threads);
        copyVal<BoolParam>(PARAM_REFLECTION, ps.make_reflection);
 
        copyVal<EnumParam>(PARAM_IAT, ps.iat);
        copyVal<EnumParam>(PARAM_DOTNET_POLICY, ps.dotnet_policy);
        copyVal<EnumParam>(PARAM_DATA, ps.data);
        copyVal<EnumParam>(PARAM_DUMP_MODE, ps.dump_mode);
 
        copyCStr<StringParam>(PARAM_DIR, ps.output_dir, _countof(ps.output_dir));
        fillStringParam(PARAM_PATTERN, ps.pattern_file);
    }
 
    void printBanner()
    {
        char logo[] = "\
.______    _______           _______. __   ___________    ____  _______ \n\
|   _  \\  |   ____|         /       ||  | |   ____\\   \\  /   / |   ____|\n\
|  |_)  | |  |__    ______ |   (----`|  | |  |__   \\   \\/   /  |  |__   \n\
|   ___/  |   __|  |______| \\   \\    |  | |   __|   \\      /   |   __|  \n\
|  |      |  |____      .----)   |   |  | |  |____   \\    /    |  |____ \n\
| _|      |_______|     |_______/    |__| |_______|   \\__/     |_______|\n";
 
        char logo2[] = "\
  _        _______       _______      __   _______     __       _______ \n";
        char logo3[] = "\
________________________________________________________________________\n";
        paramkit::print_in_color(DARK_GREEN, logo);
        paramkit::print_in_color(DARK_RED, logo2);
        paramkit::print_in_color(DARK_RED, logo3);
        std::cout << "\n";
        std::cout << pesieve::info();
    }
 
};