Beschreibung

Scrounger – eine Person, die von anderen leiht oder auf deren Kosten lebt.

Es gibt keine bessere Beschreibung für dieses Tool aus zwei Hauptgründen: Erstens, weil dieses Tool von vielen anderen bereits veröffentlichten Tools inspiriert ist, und zweitens, weil es von Schwachstellen mobiler Anwendungen lebt.

Warum

Obwohl mehrere andere mobile Anwendungsanalysetools entwickelt wurden, gibt es kein einziges Tool, das sowohl für Android als auch für iOS verwendet werden kann und als ein „Standard“-Muss bei jeder Bewertung mobiler Anwendungen bezeichnet werden kann.

Die Idee hinter Scrounger ist es, ein metasploit-ähnliches Tool zu schaffen, das nicht die Arbeit eines Pentesters erledigt, sondern dem Pentester bei seiner Bewertung hilft, indem es banale Aufgaben ausführt, die bei allen Bewertungen durchgeführt werden müssen.

Der Unterschied

Die Hauptfunktionen, die Scrounger bietet und andere nicht:

Funktioniert mit Android und iOS
Metasploit-ähnliche Konsole und Module
Bietet eine Vielzahl von Modulen, die ausgeführt werden können, um dem Pentester einen Ausgangspunkt zu geben
Einfach erweiterbar

Inspiration / Danksagung

Scrounger wurde von anderen Tools inspiriert, ein großer Dank an die Entwickler von:

Drozer (https://github.com/mwrlabs/drozer);
Needle (https://github.com/mwrlabs/needle); und
iOS Application Analysis (https://github.com/timb-machine/ios-application-analyser).

Technisches

Als Haftungsausschluss sollten alle identifizierten Ergebnisse von Scrounger immer manuell überprüft werden.

Bei der Verwendung von Modulen, die ein Android- oder iOS-Gerät benötigen, benötigt Scrounger ein gerootetes bzw. gejailbreaktes Gerät.

Scrounger wurde getestet, um auf iOS 11 und Android 8.1 zu funktionieren.

Scrounger wurde nur für python 2.7 entwickelt.

Installation```

git clone https://github.com/nettitude/scrounger.git cd scrounger bash setup.sh pip install -r requirements.txt python setup.py install

## Entwicklung```
git pull https://github.com/nettitude/scrounger.git
cd scrounger
bash setup.sh
pip install -r requirements.txt
python setup.py develop

Aktualisierung```

cd scrounger git pull python setup.py install --upgrade

## Erforderliche Binärdateien

### Für Android-Module
* java (<http://www.oracle.com/technetwork/java/javase/downloads/index.html>)
* jd-cli (<https://github.com/kwart/jd-cmd>)
* apktool (<https://ibotpeaches.github.io/Apktool/>)
* d2j-dex2jar (<https://github.com/pxb1988/dex2jar>)
* adb (<https://developer.android.com/studio/releases/platform-tools>)
* Other (Optional):
    * avdmanager (<https://developer.android.com/studio/#downloads>)


### Für iOS-Module
* jtool (Linux) (<http://www.newosxbook.com/tools/jtool.html>)
* otool (MacOS) (<https://developer.apple.com/xcode/>)
* ldid (<https://github.com/daeken/ldid.git>)
* iproxy (Package: libimobiledevice)
* lsusb (Package: usbutils)
* unzip

### iOS-Binärdateien
* Gebündelte Binärdateien:
    * dump_backup_flag
    * dump_file_protection
    * dump_keychain
    * dump_log
    * listapps
* Cydia Karen's Repository (https://cydia.angelxwind.net) (Optional):
    * AppSync Unified (Package: net.angelxwind.appsyncunified)
    * appinst (Package: com.linusyang.appinst)
* Cydia Shmoo419's Repository (https://shmoo419.github.io/) (Optional):
    * uncrypt11 (Package: com.shmoo.uncrypt11)
    * gdb (Package: gdb71050)
* Cydia Ichitaso's Repository (http://cydia.ichitaso.com/) (Optional):
    * clutch (Package: com.kjcracks.clutch2)

## Installationsskripte

### Linux```
# install iproxy lsusb
sudo apt-get install libimobiledevice usbutils

# install jd-cli
if [ ! -x "$(which jd-cli)" ]; then
    curl -L -o /tmp/jdcli.zip https://github.com/kwart/jd-cmd/releases/download/jd-cmd-0.9.2.Final/jd-cli-0.9.2-dist.zip
    unzip /tmp/jdcli.zip /usr/local/share/jd-cli
    ln -s /usr/local/share/jd-cli/jd-cli /usr/local/bin/jd-cli
    ln -s /usr/local/share/jd-cli/jd-cli.jar /usr/local/bin/jd-cli.jar
    rm -rf /tmp/jdcli.zip
fi

# install apktool
if [ ! -x "$(which apktool)" ]; then
    mkdir /usr/local/share/apktool
    curl -L -o /usr/local/share/apktool/apktool https://raw.githubusercontent.com/iBotPeaches/Apktool/master/scripts/osx/apktool
    curl -L -o /usr/local/share/apktool/apktool.jar https://bitbucket.org/iBotPeaches/apktool/downloads/apktool_2.3.3.jar
    chmod +x /usr/local/share/apktool /usr/local/share/apktool/apktool.jar
    ln -s /usr/local/share/apktool /usr/local/bin/apktool
    ln -s /usr/local/share/apktool.jar /usr/local/bin/apktool.jar
fi

# install dex2jar
if [ ! -x "$(which d2j-dex2jar)" ]; then
    curl -L -o /tmp/d2j.zip https://github.com/pxb1988/dex2jar/files/1867564/dex-tools-2.1-SNAPSHOT.zip
    unzip /tmp/d2j.zip -d /tmp/d2j
    dirname=$(ls --color=none /tmp/d2j)
    mv /tmp/d2j/$dirname /usr/local/share/d2j-dex2jar
    ln -s /usr/local/share/d2j-dex2jar/d2j-dex2jar.sh /usr/local/bin/d2j-dex2jar.sh
    ln -s /usr/local/share/d2j-dex2jar/d2j-apk-sign.sh /usr/local/bin/d2j-apk-sign.sh
    rm -rf /tmp/d2j.zip
fi

if [ ! -x "$(which d2j-dex2jar)" ]; then
    ln -s /usr/local/bin/d2j-dex2jar.sh /usr/local/bin/d2j-dex2jar
fi

# install adb
if [ ! -x "$(which adb)" ]; then
    curl -L -o /tmp/platform-tools.zip https://dl.google.com/android/repository/platform-tools-latest-linux.zip
    unzip /tmp/platform-tools.zip -d /tmp/pt
    mv /tmp/pt/platform-tools /usr/local/share/
    ln -s /usr/local/share/platform-tools/adb /usr/local/bin/adb
    ln -s /usr/local/share/platform-tools/fastboot /usr/local/bin/fastboot
fi

# install ldid
if [ ! -x "$(which ldid)" ]; then
    git clone https://github.com/daeken/ldid.git /tmp/ldid
    cd /tmp/ldid
    ./make.sh
    mv ldid /usr/local/bin/
    cd /tmp
    rm -rf /tmp/ldid
fi

# install jtool
if [ ! -x "$(which jtool)" ]; then
    curl -L -o /tmp/jtool.tar http://www.newosxbook.com/tools/jtool.tar
    mkdir /tmp/jtool
    tar xvf /tmp/jtool.tar -C /tmp/jtool
    mv /tmp/jtool/jtool.ELF64 /usr/local/bin/jtool
    rm -rf /tmp/jtool.tar /tmp/jtool
fi

# install scrounger
git clone [email protected]:nettitude/scrounger.git
cd scrounger
pip install -r requirements.txt
python setup.py install

MacOS```

install iproxy ldid lsusb

brew tap jlhonora/lsusb && brew install lsusb libimobiledevice ldid

install jd-cli

if [ ! -x "$(which jd-cli)" ]; then curl -L -o /tmp/jdcli.zip https://github.com/kwart/jd-cmd/releases/download/jd-cmd-0.9.2.Final/jd-cli-0.9.2-dist.zip unzip /tmp/jdcli.zip /usr/local/share/jd-cli ln -s /usr/local/share/jd-cli/jd-cli /usr/local/bin/jd-cli ln -s /usr/local/share/jd-cli/jd-cli.jar /usr/local/bin/jd-cli.jar rm -rf /tmp/jdcli.zip fi

install apktool

if [ ! -x "$(which apktool)" ]; then mkdir /usr/local/share/apktool curl -L -o /usr/local/share/apktool/apktool https://raw.githubusercontent.com/iBotPeaches/Apktool/master/scripts/osx/apktool curl -L -o /usr/local/share/apktool/apktool.jar https://bitbucket.org/iBotPeaches/apktool/downloads/apktool_2.3.3.jar chmod +x /usr/local/share/apktool /usr/local/share/apktool/apktool.jar ln -s /usr/local/share/apktool /usr/local/bin/apktool ln -s /usr/local/share/apktool.jar /usr/local/bin/apktool.jar fi

install dex2jar

if [ ! -x "$(which d2j-dex2jar)" ]; then curl -L -o /tmp/d2j.zip https://github.com/pxb1988/dex2jar/files/1867564/dex-tools-2.1-SNAPSHOT.zip unzip /tmp/d2j.zip -d /tmp/d2j dirname=$(ls --color=none /tmp/d2j) mv /tmp/d2j/$dirname /usr/local/share/d2j-dex2jar ln -s /usr/local/share/d2j-dex2jar/d2j-dex2jar.sh /usr/local/bin/d2j-dex2jar.sh ln -s /usr/local/share/d2j-dex2jar/d2j-apk-sign.sh /usr/local/bin/d2j-apk-sign.sh rm -rf /tmp/d2j.zip fi

if [ ! -x "$(which d2j-dex2jar)" ]; then ln -s /usr/local/bin/d2j-dex2jar.sh /usr/local/bin/d2j-dex2jar fi

install adb

if [ ! -x "$(which adb)" ]; then curl -L -o /tmp/platform-tools.zip https://dl.google.com/android/repository/platform-tools-latest-darwin.zip unzip /tmp/platform-tools.zip -d /tmp/pt mv /tmp/pt/platform-tools /usr/local/share/ ln -s /usr/local/share/platform-tools/adb /usr/local/bin/adb ln -s /usr/local/share/platform-tools/fastboot /usr/local/bin/fastboot fi

install Xcode / command line tools

xcode-select --install

install scrounger

git clone [email protected]:nettitude/scrounger.git cd scrounger pip install -r requirements.txt python setup.py install

## Hinzufügen benutzerdefinierter Module

Bei der Installation der Anwendung wird ein Ordner `~/.scrounger` erstellt.
Innerhalb von `~/.scrounger` befindet sich ein Ordner namens `modules/custom` mit der gleichen Struktur wie die standardmäßigen Scrounger-Module, z.B. `analysis/android/module_name`.

Um ein neues benutzerdefiniertes Modul zu erstellen, fügen Sie einfach eine neue Datei mit dem gewünschten Modulnamen hinzu, und es wird beim nächsten Start von Scrounger berücksichtigt.

### Beispiel

Folgendes Modul wurde hinzugefügt (`~/.scrounger/modules/custom/misc/test.py`):```
from scrounger.core.module import BaseModule

class Module(BaseModule):
    meta = {
        "author": "RDC",
        "description": """Just a Test module""",
        "certainty": 100
    }

    options = [
        {
            "name": "output",
            "description": "local output directory",
            "required": False,
            "default": None
        },
    ]

    def run(self):

        print("This is a print from the custom module")

        return {
            "print": "This will be print by scrounger's console."
        }

Ausführung```

$ scrounger-console Starting Scrounger console...

scrounger > list custom/misc

Module Certainty Author Description

custom/misc/test 100% RDC Just a Test module

scrounger > use custom/misc/test

scrounger custom/misc/test > options

Global Options:

Name    Value
----    -----
device
output  /tmp/scrounger-app

Module Options (custom/misc/test):

Name    Required  Description             Current Setting
----    --------  -----------             ---------------
output  False     local output directory  /tmp/scrounger-app

scrounger custom/misc/test > run This is a print from the custom module [+] This will be print by scrounger's console.

scrounger custom/misc/test >

## Beispiele

### Module auflisten / durchsuchen```
$ scrounger-console
Starting Scrounger console...

> help

Documented commands (type help <topic>):
========================================
add_device  devices  list     print  results  set   unset
back        help     options  quit   run      show  use


> help list
Lists all available modules

> list ios

Module                                  Certainty Author Description
------                                  --------- ------ -----------
analysis/ios/app_transport_security     90%       RDC    Checks if there are any Application Transport Security misconfigurations
analysis/ios/arc_support                90%       RDC    Checks if a binary was compiled with ARC support
analysis/ios/backups                    90%       RDC    Checks the application's files have the backup flag on
analysis/ios/clipboard_access           75%       RDC    Checks if the application disables clipboard access
analysis/ios/debugger_detection         75%       RDC    Checks if the application detects debuggers
analysis/ios/excessive_permissions      90%       RDC    Checks if the application uses excessive permissions
analysis/ios/file_protection            90%       RDC    Checks the application's files specific protection flags
analysis/ios/full_analysis              100%      RDC    Runs all modules in analysis and writes a report into the output directory
analysis/ios/insecure_channels          50%       RDC    Checks if the application uses insecure channels
analysis/ios/insecure_function_calls    75%       RDC    Checks if the application uses insecure function calls
analysis/ios/jailbreak_detection        60%       RDC    Checks if the application implements jailbreak detection
analysis/ios/logs                       60%       RDC    Checks if the application logs to syslog
analysis/ios/passcode_detection         60%       RDC    Checks if the application checks for passcode being set
analysis/ios/pie_support                100%      RDC    Checks if the application was compiled with PIE support
analysis/ios/prepared_statements        60%       RDC    Checks if the application uses sqlite calls and if so checks if it also uses prepared statements
analysis/ios/ssl_pinning                60%       RDC    Checks if the application implements SSL pinning
analysis/ios/stack_smashing             90%       RDC    Checks if a binary was compiled stack smashing protections
analysis/ios/third_party_keyboard       65%       RDC    Checks if an application checks of third party keyboards
analysis/ios/unencrypted_communications 80%       RDC    Checks if the application implements communicates over unencrypted channels
analysis/ios/unencrypted_keychain_data  70%       RDC    Checks if the application saves unencrypted data in the keychain
analysis/ios/weak_crypto                60%       RDC    Checks if the application uses weak crypto
analysis/ios/weak_random                50%       RDC    Checks if a binary uses weak random functions
analysis/ios/weak_ssl_ciphers           50%       RDC    Checks if a binary uses weak SSL ciphers
misc/ios/app/archs                      100%      RDC    Gets the application's available architectures
misc/ios/app/data                       100%      RDC    Gets the application's data from the remote device
misc/ios/app/entitlements               100%      RDC    Gets the application's entitlements
misc/ios/app/flags                      100%      RDC    Gets the application's compilation flags
misc/ios/app/info                       100%      RDC    Pulls the Info.plist info from the device
misc/ios/app/start                      100%      RDC    Launches an application on the remote device
misc/ios/app/symbols                    100%      RDC    Gets the application's symbols out of an installed application on the device
misc/ios/class_dump                     100%      RDC    Dumps the classes out of a decrypted binary
misc/ios/decrypt_bin                    100%      RDC    Decrypts and pulls a binary application
misc/ios/install_binaries               100%      RDC    Installs iOS binaries required to run some checks
misc/ios/keychain_dump                  100%      RDC    Dumps contents from the connected device's keychain
misc/ios/local/app/archs                100%      RDC    Gets the application's available architectures
misc/ios/local/app/entitlements         100%      RDC    Gets the application's entitlements from a local binary and saves them to file
misc/ios/local/app/flags                100%      RDC    Gets the application's compilation flags using local tools. Will look for otool and jtool in the PATH.
misc/ios/local/app/info                 100%      RDC    Pulls the Info.plist info from the unzipped IPA file and saves an XML file with it's contents to the output folder
misc/ios/local/app/symbols              100%      RDC    Gets the application's symbols out of an installed application on the device
misc/ios/local/class_dump               100%      RDC    Dumps the classes out of a decrypted binary
misc/ios/pull_ipa                       100%      RDC    Pulls the IPA file from a remote device
misc/ios/unzip_ipa                      100%      RDC    Unzips the IPA file into the output directory

Verwendung des Misc-Moduls```

$ scrounger-console Starting Scrounger console...

use misc/android/decompile_apk

misc/android/decompile_apk > options

Global Options:

Name   Value
----   -----
device
output /tmp/scrounger-app

Module Options (misc/android/decompile_apk):

Name   Required Description                Current Setting
----   -------- -----------                ---------------
output True     local output directory     /tmp/scrounger-app
apk    True     local path to the APK file

misc/android/decompile_apk > set output scrounger-demo-output

misc/android/decompile_apk > set apk ./a.apk

misc/android/decompile_apk > options

Global Options:

Name   Value
----   -----
device
output /tmp/scrounger-app

Module Options (misc/android/decompile_apk):

Name   Required Description                Current Setting
----   -------- -----------                ---------------
output True     local output directory     scrounger-demo-output
apk    True     local path to the APK file ./a.apk

misc/android/decompile_apk > run 2018-05-01 10:29:53 - decompile_apk : Creating decompilation directory 2018-05-01 10:29:53 - decompile_apk : Decompiling application 2018-05-01 10:29:59 - manifest : Checking for AndroidManifest.xml file 2018-05-01 10:29:59 - manifest : Creating manifest object [+] Application decompiled to scrounger-demo-output/com.eg.challengeapp.decompiled

### Ergebnisse aus anderen Modulen verwenden```
misc/android/decompile_apk > show results

Results:

    Name                             Value
    ----                             -----
    com.eg.challengeapp_decompiled scrounger-demo-output/com.eg.challengeapp.decompiled

misc/android/decompile_apk > use analysis/android/permissions

analysis/android/permissions > options

Global Options:

    Name   Value
    ----   -----
    device
    output /tmp/scrounger-app

Module Options (analysis/android/permissions):

    Name           Required Description                                        Current Setting
    ----           -------- -----------                                        ---------------
    decompiled_apk True     local folder containing the decompiled apk file
    permissions    True     dangerous permissions to check for, seperated by ; android.permission.GET_TASKS;android.permission.BIND_DEVICE_ADMIN;android.permission.USE_CREDENTIALS;com.android.browser.permission.READ_HISTORY_BOOKMARKS;android.permission.PROCESS_OUTGOING_CA

analysis/android/permissions > print option permissions

Option Name: permissions
Value: android.permission.GET_TASKS;android.permission.BIND_DEVICE_ADMIN;android.permission.USE_CREDENTIALS;com.android.browser.permission.READ_HISTORY_BOOKMARKS;android.permission.PROCESS_OUTGOING_CALLS;android.permission.READ_LOGS;android.permission.READ_SMS;android.permission.READ_CALL_LOG;android.permission.RECORD_AUDIO;android.permission.MANAGE_ACCOUNTS;android.permission.RECEIVE_SMS;android.permission.RECEIVE_MMS;android.permission.WRITE_CONTACTS;android.permission.DISABLE_KEYGUARD;android.permission.WRITE_SETTINGS;android.permission.WRITE_SOCIAL_STREAM;android.permission.WAKE_LOCK

analysis/android/permissions > set decompiled_apk result:com.eg.challengeapp_decompiled

analysis/android/permissions > options

Global Options:

    Name   Value
    ----   -----
    device
    output /tmp/scrounger-app

Module Options (analysis/android/permissions):

    Name           Required Description                                        Current Setting
    ----           -------- -----------                                        ---------------
    decompiled_apk True     local folder containing the decompiled apk file    result:com.eg.challengeapp_decompiled
    permissions    True     dangerous permissions to check for, seperated by ; android.permission.GET_TASKS;android.permission.BIND_DEVICE_ADMIN;android.permission.USE_CREDENTIALS;com.android.browser.permission.READ_HISTORY_BOOKMARKS;android.permission.PROCESS_OUTGOING_CA

analysis/android/permissions > run
2018-05-01 10:54:58 -                       manifest : Checking for AndroidManifest.xml file
2018-05-01 10:54:58 -                       manifest : Creating manifest object
2018-05-01 10:54:58 -                    permissions : Analysing application's manifest permissions
[+] Analysis result:
The Application Has Inadequate Permissions
    Report: True
    Details:
* android.permission.READ_SMS

Geräte verwenden```

$ scrounger-console Starting Scrounger console...

show devices

Added Devices:

Scrounger ID Device OS Identifier
------------ --------- ----------

add_device android ios

add_device android 00cd7e67ec57c127

show devices

Added Devices:

Scrounger ID Device OS Identifier
------------ --------- ----------
1            android   00cd7e67ec57c127

set global device 1

options

Global Options:

Name   Value
----   -----
device 1
output /tmp/scrounger-app

use misc/list_apps

misc/list_apps > options

Global Options:

Name   Value
----   -----
device 1
output /tmp/scrounger-app

Module Options (misc/list_apps):

Name   Required Description            Current Setting
----   -------- -----------            ---------------
output False    local output directory /tmp/scrounger-app
device True     the remote device      1

misc/list_apps > unset output

misc/list_apps > options

Global Options:

Name   Value
----   -----
device 1
output /tmp/scrounger-app

Module Options (misc/list_apps):

Name   Required Description            Current Setting
----   -------- -----------            ---------------
output False    local output directory
device True     the remote device      1

misc/list_apps > run [+] Applications installed on 00cd7e67ec57c127:

com.android.sharedstoragebackup com.android.providers.partnerbookmarks com.google.android.apps.maps com.google.android.partnersetup de.codenauts.hockeyapp ...

### Kommandozeilen-Hilfe```
$ scrounger --help
usage: scrounger [-h] [-m analysis/ios/module1;analysis/ios/module2]
                 [-a argument1=value1;argument1=value2;]
                 [-f /path/to/the/app.[apk|ipa]] [-d device_id] [-l] [-o]
                 [-p /path/to/full-analysis.json] [-V] [-D]

   _____
  / ____|
 | (___   ___ _ __ ___  _   _ _ __   __ _  ___ _ __
  \___ \ / __| '__/ _ \| | | | '_ \ / _` |/ _ \ '__|
  ____) | (__| | | (_) | |_| | | | | (_| |  __/ |
 |_____/ \___|_|  \___/ \__,_|_| |_|\__, |\___|_|
                                     __/ |
                                    |___/

optional arguments:
  -h, --help            show this help message and exit
  -m analysis/ios/module1;analysis/ios/module2, --modules analysis/ios/module1;analysis/ios/module2
                        modules to be run - seperated by ; - will be run in order
  -a argument1=value1;argument1=value2;, --arguments argument1=value1;argument1=value2;
                        arguments for the modules to be run
  -f /path/to/the/app.[apk|ipa], --full-analysis /path/to/the/app.[apk|ipa]
                        runs a full analysis on the application
  -d device_id, --device device_id
                        device to be used by the modules
  -l, --list            list available devices and modules
  -o, --options         prints the required options for the selected modules
  -p /path/to/full-analysis.json, --print-results /path/to/full-analysis.json
                        prints the results of a full analysis json file
  -V, --verbose         prints more information when running the modules
  -D, --debug           prints more information when running scrounger

Verwendung der Befehlszeile```

$ scrounger -o -m "misc/android/decompile_apk"

Module Options (misc.android.decompile_apk):

Name   Required Description                Default
----   -------- -----------                -------
output True     local output directory     None
apk    True     local path to the APK file None

$ scrounger -m "misc/android/decompile_apk" -a "apk=./a.apk;output=./cli-demo" Excuting Module 0 2018-05-01 11:17:42 - decompile_apk : Creating decompilation directory 2018-05-01 11:17:42 - decompile_apk : Decompiling application 2018-05-01 11:17:46 - manifest : Checking for AndroidManifest.xml file 2018-05-01 11:17:46 - manifest : Creating manifest object [+] Application decompiled to ./cli-demo/com.eg.challengeapp.decompiled

## AUFGABEN

* Init-Datei hinzufügen, die jedes Mal ausgeführt wird, wenn die scrounger-console gestartet wird
* Speicherung von Sitzungsergebnissen korrigieren, wenn es sich nicht um Zeichenketten handelt

scrounger

Beliebteste

Beschreibung

Warum

Der Unterschied

Inspiration / Danksagung

Technisches

Installation```

Aktualisierung```

MacOS```

install iproxy ldid lsusb

install jd-cli

install apktool

install dex2jar

install adb

install Xcode / command line tools

install scrounger

Ausführung```

Verwendung des Misc-Moduls```

Geräte verwenden```

Verwendung der Befehlszeile```