Add a module to parse uninstalled apps from dumpsys data, for both bugreport and AndroidQF output, and match them against package name IoCs.

src/mvt/android/artifacts/dumpsys_platform_compat.py

@@ -0,0 +1,44 @@
+# Mobile Verification Toolkit (MVT)
+# Copyright (c) 2021-2023 The MVT Authors.
+# Use of this software is governed by the MVT License 1.1 that can be found at
+#   https://license.mvt.re/1.1/
+
+from .artifact import AndroidArtifact
+
+
+class DumpsysPlatformCompatArtifact(AndroidArtifact):
+    """
+    Parser for uninstalled apps listed in platform_compat section.
+    """
+
+    def check_indicators(self) -> None:
+        if not self.indicators:
+            return
+
+        for result in self.results:
+            ioc = self.indicators.check_app_id(result["package_name"])
+            if ioc:
+                result["matched_indicator"] = ioc
+                self.detected.append(result)
+                continue
+
+    def parse(self, data: str) -> None:
+        for line in data.splitlines():
+            if not line.startswith("ChangeId(168419799; name=DOWNSCALED;"):
+                continue
+
+            if line.strip() == "":
+                break
+            
+            # Look for rawOverrides field
+            if "rawOverrides={" in line:
+                # Extract the content inside the braces for rawOverrides
+                overrides_field = line.split("rawOverrides={", 1)[1].split("};", 1)[0]
+
+                for entry in overrides_field.split(", "):
+                    # Extract app name
+                    uninstall_app = entry.split("=")[0].strip()
+
+                    self.results.append(
+                        {"package_name": uninstall_app}
+                    )

src/mvt/android/modules/androidqf/__init__.py

@@ -14,6 +14,7 @@ from .dumpsys_receivers import DumpsysReceivers
 from .dumpsys_adb import DumpsysADBState
 from .getprop import Getprop
 from .packages import Packages
+from .dumpsys_platform_compat import DumpsysPlatformCompat
 from .processes import Processes
 from .settings import Settings
 from .sms import SMS
@@ -29,6 +30,7 @@ ANDROIDQF_MODULES = [
     DumpsysBatteryHistory,
     DumpsysADBState,
     Packages,
+    DumpsysPlatformCompat,
     Processes,
     Getprop,
     Settings,

src/mvt/android/modules/androidqf/dumpsys_platform_compat.py

@@ -0,0 +1,44 @@
+# Mobile Verification Toolkit (MVT)
+# Copyright (c) 2021-2023 The MVT Authors.
+# Use of this software is governed by the MVT License 1.1 that can be found at
+#   https://license.mvt.re/1.1/
+
+import logging
+from typing import Optional
+
+from mvt.android.artifacts.dumpsys_platform_compat import DumpsysPlatformCompatArtifact
+
+from .base import AndroidQFModule
+
+
+class DumpsysPlatformCompat(DumpsysPlatformCompatArtifact, AndroidQFModule):
+    """This module extracts details on uninstalled apps."""
+
+    def __init__(
+        self,
+        file_path: Optional[str] = None,
+        target_path: Optional[str] = None,
+        results_path: Optional[str] = None,
+        module_options: Optional[dict] = None,
+        log: logging.Logger = logging.getLogger(__name__),
+        results: Optional[list] = None,
+    ) -> None:
+        super().__init__(
+            file_path=file_path,
+            target_path=target_path,
+            results_path=results_path,
+            module_options=module_options,
+            log=log,
+            results=results,
+        )
+
+    def run(self) -> None:
+        dumpsys_file = self._get_files_by_pattern("*/dumpsys.txt")
+        if not dumpsys_file:
+            return
+
+        data = self._get_file_content(dumpsys_file[0]).decode("utf-8", errors="replace")
+        content = self.extract_dumpsys_section(data, "DUMP OF SERVICE platform_compat:")
+        self.parse(content)
+
+        self.log.info("Found %d uninstalled apps", len(self.results))

src/mvt/android/modules/bugreport/__init__.py

@@ -11,6 +11,7 @@ from .battery_history import BatteryHistory
 from .dbinfo import DBInfo
 from .getprop import Getprop
 from .packages import Packages
+from .platform_compat import PlatformCompat
 from .receivers import Receivers
 from .adb_state import DumpsysADBState
 
@@ -23,6 +24,7 @@ BUGREPORT_MODULES = [
     DBInfo,
     Getprop,
     Packages,
+    PlatformCompat,
     Receivers,
     DumpsysADBState,
 ]

src/mvt/android/modules/bugreport/platform_compat.py

@@ -0,0 +1,48 @@
+# Mobile Verification Toolkit (MVT)
+# Copyright (c) 2021-2023 The MVT Authors.
+# Use of this software is governed by the MVT License 1.1 that can be found at
+#   https://license.mvt.re/1.1/
+
+import logging
+from typing import Optional
+
+from mvt.android.artifacts.dumpsys_platform_compat import DumpsysPlatformCompatArtifact
+
+from mvt.android.modules.bugreport.base import BugReportModule
+
+
+class PlatformCompat(DumpsysPlatformCompatArtifact, BugReportModule):
+    """This module extracts details on uninstalled apps."""
+
+    def __init__(
+        self,
+        file_path: Optional[str] = None,
+        target_path: Optional[str] = None,
+        results_path: Optional[str] = None,
+        module_options: Optional[dict] = None,
+        log: logging.Logger = logging.getLogger(__name__),
+        results: Optional[list] = None,
+    ) -> None:
+        super().__init__(
+            file_path=file_path,
+            target_path=target_path,
+            results_path=results_path,
+            module_options=module_options,
+            log=log,
+            results=results,
+        )
+
+    def run(self) -> None:
+        data = self._get_dumpstate_file()
+        if not data:
+            self.log.error(
+                "Unable to find dumpstate file. "
+                "Did you provide a valid bug report archive?"
+            )
+            return
+
+        data = data.decode("utf-8", errors="replace")
+        content = self.extract_dumpsys_section(data, "DUMP OF SERVICE platform_compat:")
+        self.parse(content)
+
+        self.log.info("Found %d uninstalled apps", len(self.results))

src/mvt/common/indicators.py

@@ -324,6 +324,7 @@ class Indicators:
 
     def get_iocs(self, ioc_type: str) -> Iterator[Dict[str, Any]]:
         for ioc_collection in self.ioc_collections:
+
             for ioc in ioc_collection.get(ioc_type, []):
                 yield {
                     "value": ioc,