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14 Commits
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757bd8618e |
@@ -8,7 +8,7 @@ However, not all is lost.
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Because malware attacks over Android typically take the form of malicious or backdoored apps, the very first thing you might want to do is to extract and verify all installed Android packages and triage quickly if there are any which stand out as malicious or which might be atypical.
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While it is out of the scope of this documentation to dwell into details on how to analyze Android apps, MVT does allow to easily and automatically extract information about installed apps, download copies of them, and quickly lookup services such as [VirusTotal](https://www.virustotal.com) or [Koodous](https://www.koodous.com) which might quickly indicate known bad apps.
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While it is out of the scope of this documentation to dwell into details on how to analyze Android apps, MVT does allow to easily and automatically extract information about installed apps, download copies of them, and quickly lookup services such as [VirusTotal](https://www.virustotal.com) or [Koodous](https://koodous.com) which might quickly indicate known bad apps.
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## Check the device over Android Debug Bridge
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@@ -1,6 +1,6 @@
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# Install libimobiledevice
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Before proceeding with doing any acquisition of iOS devices we recommend installing [libimobiledevice](https://www.libimobiledevice.org/) utilities. These utilities will become useful when extracting crash logs and generating iTunes backups. Because the utilities and its libraries are subject to frequent changes in response to new versions of iOS, you might want to consider compiling libimobiledevice utilities from sources. Otherwise, if available, you can try installing packages available in your distribution:
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Before proceeding with doing any acquisition of iOS devices we recommend installing [libimobiledevice](https://libimobiledevice.org/) utilities. These utilities will become useful when extracting crash logs and generating iTunes backups. Because the utilities and its libraries are subject to frequent changes in response to new versions of iOS, you might want to consider compiling libimobiledevice utilities from sources. Otherwise, if available, you can try installing packages available in your distribution:
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```bash
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sudo apt install libimobiledevice-utils
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@@ -34,6 +34,14 @@ def cli():
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logo()
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#==============================================================================
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# Command: version
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#==============================================================================
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@cli.command("version", help="Show the currently installed version of MVT")
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def version():
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return
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#==============================================================================
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# Download APKs
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#==============================================================================
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@@ -11,7 +11,6 @@ import pkg_resources
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from tqdm import tqdm
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from mvt.common.module import InsufficientPrivileges
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from mvt.common.utils import get_sha256_from_file_path
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from .modules.adb.base import AndroidExtraction
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from .modules.adb.packages import Packages
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@@ -158,37 +157,16 @@ class DownloadAPKs(AndroidExtraction):
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log.info("[%d/%d] Package: %s", counter, len(packages_selection),
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package["package_name"])
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# Get the file path for the specific package.
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try:
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output = self._adb_command(f"pm path {package['package_name']}")
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output = output.strip().replace("package:", "")
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if not output:
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continue
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except Exception as e:
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log.exception("Failed to get path of package %s: %s",
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package["package_name"], e)
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self._adb_reconnect()
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continue
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# Sometimes the package path contains multiple lines for multiple apks.
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# We loop through each line and download each file.
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for path in output.split("\n"):
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device_path = path.strip()
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file_path = self.pull_package_file(package["package_name"],
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device_path)
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if not file_path:
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for package_file in package["files"]:
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device_path = package_file["path"]
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local_path = self.pull_package_file(package["package_name"],
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device_path)
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if not local_path:
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continue
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file_info = {
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"path": device_path,
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"local_name": file_path,
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"sha256": get_sha256_from_file_path(file_path),
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}
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if "files" not in package:
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package["files"] = [file_info,]
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else:
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package["files"].append(file_info)
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package_file["local_path"] = local_path
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log.info("Download of selected packages completed")
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@@ -32,7 +32,7 @@ def koodous_lookup(packages):
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res = requests.get(url)
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report = res.json()
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row = [package["package_name"], file["local_name"]]
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row = [package["package_name"], file["path"]]
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if "package_name" in report:
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trusted = "no"
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@@ -75,7 +75,7 @@ def virustotal_lookup(packages):
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for package in packages:
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for file in package.get("files", []):
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row = [package["package_name"], file["local_name"]]
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row = [package["package_name"], file["path"]]
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if file["sha256"] in detections:
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detection = detections[file["sha256"]]
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@@ -132,7 +132,7 @@ class AndroidExtraction(MVTModule):
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"""
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return self._adb_command(f"su -c {command}")
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def _adb_check_file_exists(self, file):
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"""Verify that a file exists.
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@@ -166,7 +166,7 @@ class AndroidExtraction(MVTModule):
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self._adb_download_root(remote_path, local_path, progress_callback)
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else:
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raise Exception(f"Unable to download file {remote_path}: {e}")
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def _adb_download_root(self, remote_path, local_path, progress_callback=None):
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try:
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# Check if we have root, if not raise an Exception.
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@@ -191,7 +191,7 @@ class AndroidExtraction(MVTModule):
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# Delete the copy on /sdcard/.
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self._adb_command(f"rm -rf {new_remote_path}")
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except AdbCommandFailureException as e:
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raise Exception(f"Unable to download file {remote_path}: {e}")
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@@ -33,6 +33,14 @@ class ChromeHistory(AndroidExtraction):
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"data": f"{record['id']} - {record['url']} (visit ID: {record['visit_id']}, redirect source: {record['redirect_source']})"
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}
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def check_indicators(self):
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if not self.indicators:
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return
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for result in self.results:
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if self.indicators.check_domain(result["url"]):
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self.detected.append(result)
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def _parse_db(self, db_path):
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"""Parse a Chrome History database file.
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@@ -44,16 +44,49 @@ class Packages(AndroidExtraction):
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root_packages_path = os.path.join("..", "..", "data", "root_packages.txt")
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root_packages_string = pkg_resources.resource_string(__name__, root_packages_path)
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root_packages = root_packages_string.decode("utf-8").split("\n")
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root_packages = [rp.strip() for rp in root_packages]
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for root_package in root_packages:
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root_package = root_package.strip()
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if not root_package:
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continue
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if root_package in self.results:
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for result in self.results:
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if result["package_name"] in root_packages:
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self.log.warning("Found an installed package related to rooting/jailbreaking: \"%s\"",
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root_package)
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self.detected.append(root_package)
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result["package_name"])
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self.detected.append(result)
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if result["package_name"] in self.indicators.ioc_app_ids:
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self.log.warning("Found a malicious package name: \"%s\"",
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result["package_name"])
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self.detected.append(result)
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for file in result["files"]:
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if file["sha256"] in self.indicators.ioc_files_sha256:
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self.log.warning("Found a malicious APK: \"%s\" %s",
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result["package_name"],
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file["sha256"])
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self.detected.append(result)
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def _get_files_for_package(self, package_name):
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output = self._adb_command(f"pm path {package_name}")
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output = output.strip().replace("package:", "")
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if not output:
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return []
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package_files = []
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for file_path in output.split("\n"):
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file_path = file_path.strip()
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md5 = self._adb_command(f"md5sum {file_path}").split(" ")[0]
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sha1 = self._adb_command(f"sha1sum {file_path}").split(" ")[0]
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sha256 = self._adb_command(f"sha256sum {file_path}").split(" ")[0]
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sha512 = self._adb_command(f"sha512sum {file_path}").split(" ")[0]
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package_files.append({
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"path": file_path,
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"md5": md5,
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"sha1": sha1,
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"sha256": sha256,
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"sha512": sha512,
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})
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return package_files
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def run(self):
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self._adb_connect()
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@@ -85,6 +118,8 @@ class Packages(AndroidExtraction):
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first_install = dumpsys[1].split("=")[1].strip()
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last_update = dumpsys[2].split("=")[1].strip()
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package_files = self._get_files_for_package(package_name)
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self.results.append({
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"package_name": package_name,
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"file_name": file_name,
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@@ -96,6 +131,7 @@ class Packages(AndroidExtraction):
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"disabled": False,
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"system": False,
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"third_party": False,
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"files": package_files,
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})
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cmds = [
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@@ -23,6 +23,8 @@ class Indicators:
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self.ioc_processes = []
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self.ioc_emails = []
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self.ioc_files = []
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self.ioc_files_sha256 = []
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self.ioc_app_ids = []
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self.ioc_count = 0
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def _add_indicator(self, ioc, iocs_list):
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@@ -66,6 +68,12 @@ class Indicators:
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elif key == "file:name":
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self._add_indicator(ioc=value,
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iocs_list=self.ioc_files)
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elif key == "app:id":
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self._add_indicator(ioc=value,
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iocs_list=self.ioc_app_ids)
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elif key == "file:hashes.sha256":
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self._add_indicator(ioc=value,
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iocs_list=self.ioc_files_sha256)
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def check_domain(self, url) -> bool:
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"""Check if a given URL matches any of the provided domain indicators.
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@@ -6,7 +6,7 @@
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import requests
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from packaging import version
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MVT_VERSION = "1.2.7"
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MVT_VERSION = "1.2.9"
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def check_for_updates():
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res = requests.get("https://pypi.org/pypi/mvt/json")
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@@ -38,6 +38,14 @@ def cli():
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logo()
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#==============================================================================
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# Command: version
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#==============================================================================
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@cli.command("version", help="Show the currently installed version of MVT")
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def version():
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return
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#==============================================================================
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# Command: decrypt-backup
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#==============================================================================
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@@ -52,6 +52,9 @@ class LocationdClients(IOSExtraction):
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return records
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def check_indicators(self):
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if not self.indicators:
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return
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for result in self.results:
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parts = result["package"].split("/")
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proc_name = parts[len(parts)-1]
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@@ -223,6 +223,7 @@ IPHONE_IOS_VERSIONS = [
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{"build": "18G69", "version": "14.7"},
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{"build": "18G82", "version": "14.7.1"},
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{"build": "18H17", "version": "14.8"},
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{"build": "19A346", "version": "15.0"},
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]
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def get_device_desc_from_id(identifier, devices_list=IPHONE_MODELS):
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Reference in New Issue
Block a user