improvement and add is_static data

frida/README.md

@@ -1,3 +1,21 @@
 # Theseus Data Collector
 
 Collect runtime information about reflection operation done by en application to feed them to the patcher.
+
+The Frida hook uses a Java class to collect the stack information, before building/installing the python package, you need to build the class:
+
+```shell
+
+# If the default values do not match, set the variables:
+# 
+# JAVAC: path to the java compiler
+# ANDROID_SDK: path to the android sdk
+# VERSION: Android SDK version to use
+# D8: path to the d8 executable
+# ANDROID_JAR: path to the android.jar file to link
+# BUILD_F: build folder (will be delated if exist)
+# OUT_FILE: the file where to put the b64 of the compiled dex
+
+bash consumer/build.sh
+poetry build # / poetry install / pip install .
+```

frida/consumer/StackConsumer.java

@@ -9,7 +9,7 @@ class StackConsumer implements Consumer<StackFrame> {
     public ArrayList<StackFrame> stack;
 
     public StackConsumer() {
-        this.stack = new ArrayList();
+        this.stack = new ArrayList<StackFrame>();
     }
 
     @Override

frida/consumer/build.sh

@@ -1,20 +1,30 @@
 #!/usr/bin/env bash
 
 
-JAVAC='/usr/lib/jvm/java-17-openjdk/bin/javac'
-SDK_TOOLS="${HOME}/Android/Sdk/"
-VERSION='34.0.0'
-D8="${SDK_TOOLS}/build-tools/${VERSION}/d8"
-VERSION_B=$(echo "${VERSION}" | sed 's/\..*//')
-ANDROID_JAR="${SDK_TOOLS}/platforms/android-${VERSION_B}/android.jar"
+JAVAC="${JAVAC:-/usr/lib/jvm/java-17-openjdk/bin/javac}"
+ANDROID_SDK="${ANDROID_SDK:-${HOME}/Android/Sdk/}"
+VERSION="${VERSION:-34.0.0}"
+D8="${D8:-${ANDROID_SDK}/build-tools/${VERSION}/d8}"
+VERSION_B="${VERSION_B:-$(echo "${VERSION}" | sed 's/\..*//')}"
+ANDROID_JAR="${ANDROID_JAR:-${ANDROID_SDK}/platforms/android-${VERSION_B}/android.jar}"
 
 FOLDER=$(dirname "$(realpath $0)")
-BUILD_F="${FOLDER}/build"
-OUT_FILE="${FOLDER}/../theseus_frida/StackConsumer.dex.b64"
+BUILD_F="${BUILD_F:-${FOLDER}/build}"
+OUT_FILE="${OUT_FILE:-${FOLDER}/../theseus_frida/StackConsumer.dex.b64}"
+
+echo "JAVAC = ${JAVAC}"
+echo "ANDROID_SDK = ${ANDROID_SDK}"
+echo "VERSION = ${VERSION}"
+echo "D8 = ${D8}"
+# echo "VERSION_B = ${VERSION_B}"
+echo "ANDROID_JAR = ${ANDROID_JAR}"
+echo "BUILD_F = ${BUILD_F}"
+echo "OUT_FILE = ${OUT_FILE}"
+
 rm -r "${BUILD_F}"
 mkdir "${BUILD_F}"
 
-"${JAVAC}" -d "${BUILD_F}" -classpath "${ANDROID_JAR}" "${FOLDER}/StackConsumer.java"
+"${JAVAC}" -Xlint -d "${BUILD_F}" -classpath "${ANDROID_JAR}" "${FOLDER}/StackConsumer.java"
 
 mkdir "${BUILD_F}/classes"
 "${D8}" --classpath "${ANDROID_JAR}" "${BUILD_F}/theseus/android/StackConsumer.class" --output "${BUILD_F}/classes"

frida/theseus_frida/__init__.py

@@ -7,6 +7,9 @@ from pathlib import Path
 
 import frida  # type: ignore
 from androguard.core.apk import get_apkid  # type: ignore
+from loguru import logger  # type: ignore
+
+logger.remove()  # remove androguard logs
 
 FRIDA_SCRIPT = Path(__file__).parent / "hook.js"
 STACK_CONSUMER_B64 = Path(__file__).parent / "StackConsumer.dex.b64"
@@ -35,32 +38,25 @@ def print_stack(stack, prefix: str):
         print(f"{prefix}{frame['method']}:{frame['bytecode_index']}{native}")
 
 
-# def get_ty(java_name: str) -> str:
-#    """Return the android name from the java name of a class / type"""
-#    # TODO: array
-#    # TODO: scalar
-#    if java_name == "V":  # tmp stub
-#        return "V"
-#    return f"L{java_name.replace('.', '/')};"
-
-
-# def get_method_id(method_data) -> str:
-#    """Get a method descriptor from the different elements collected from the methods."""
-#    name = method_data["name"]
-#    ret = get_ty(method_data["ret"])
-#    cls = get_ty(method_data["class"])
-#    args = "".join(map(get_ty, method_data["args"]))
-#    return f"{cls}->{name}({args}){ret}"
-
-
 def handle_invoke_data(data, data_storage: dict):
     method = data["method"]
+    # TODO: good idea?
+    if method in [
+        "Landroid/view/View;->getTranslationZ()F",
+        "Landroid/view/View;->getElevation()F",
+    ]:
+        return
     if len(data["stack"]) == 0:
         return
     caller_method = data["stack"][0]["method"]
     addr = data["stack"][0]["bytecode_index"]
+    is_static = data["is_static"]
+    if is_static:
+        is_static_str = " (static)"
+    else:
+        is_static_str = ""
     print("Method.Invoke:")
-    print(f"    called: {method}")
+    print(f"    called: {method}{is_static_str}")
     print(f"    by:     {caller_method}")
     print(f"    at:     0x{addr:08x}")
     # print(f"    stack:")
@@ -72,6 +68,7 @@ def handle_invoke_data(data, data_storage: dict):
             "method": method,
             "caller_method": caller_method,
             "addr": addr,
+            "is_static": is_static,
         }
     )
 

frida/theseus_frida/hook.js

@@ -67,6 +67,7 @@ Java.perform(() => {
   const Method = Java.use("java.lang.reflect.Method");
   const Class = Java.use("java.lang.Class");
   const Constructor = Java.use("java.lang.reflect.Constructor");
+  const Modifier = Java.use("java.lang.reflect.Modifier");
   Method.invoke.overload(
     "java.lang.Object", "[Ljava.lang.Object;" // the Frida type parser is so cursted...
   ).implementation = function (obj, args) {
@@ -80,7 +81,8 @@ Java.perform(() => {
             "args": this.getParameterTypes().map((argty) => argty.getName() ),
             "ret": this.getReturnType().getName(),
           },*/
-	  "stack": get_stack()
+	  "stack": get_stack(),
+	  "is_static": Modifier.isStatic(this.getModifiers()),
       }
     });
     return this.invoke(obj, args);