analyzing-ios-app-security-with-objection

analyzing-ios-app-security-with-objection is a skill for Claude Code from plurigrid/asi. It costs 99 tokens per session (1,468 once invoked), scanned A, original, MIT.

A guide to testing iOS app behavior at runtime with Objection, a security-testing toolkit built on Frida. It lets authorized testers inspect app internals, including keychain data, files, memory, and client-side protections.

In plain words
What is it for?
Use it during authorized iOS penetration tests to inspect app data and runtime behavior, assess client-side controls, and investigate security issues on jailbroken or specially prepared devices.
Why use it?
It helps security testers examine an app while it is running, even when they do not have its source code. This can reveal sensitive data exposure and show whether protections such as SSL pinning or jailbreak detection can be bypassed.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the asi plugin — 56 skills shipped together

Good fit Use it during authorized iOS penetration tests to inspect app data and runtime behavior, assess client-side controls, and investigate security issues on jailbroken or specially prepared devices.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/plurigrid/asi/analyzing-ios-app-security-with-objection
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add plurigrid/asi --skill analyzing-ios-app-security-with-objection
Clone the repo
git clone --depth 1 https://github.com/plurigrid/asi

Made for: Claude Code.

Or install asi, the plugin that ships this one along with the rest of its 56 skills.

Wrote this? Show the measurements

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README.md
[![agentmods](https://agentmods.dev/badge/skills/plurigrid/asi/analyzing-ios-app-security-with-objection/github.svg)](https://agentmods.dev/skills/plurigrid/asi/analyzing-ios-app-security-with-objection)
Your own site
<a href="https://agentmods.dev/skills/plurigrid/asi/analyzing-ios-app-security-with-objection"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/analyzing-ios-app-security-with-objection/github.svg" alt="Measured on agentmods" height="20"></a>

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Your own site · 80×15
<a href="https://agentmods.dev/skills/plurigrid/asi/analyzing-ios-app-security-with-objection"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/analyzing-ios-app-security-with-objection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,468 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 7 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 6
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 78
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 169
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 184
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 77
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 184
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Rogue Agent · line 81
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00099 $0.01468
Opus 5 $0.00049 $0.00734
Sonnet 5 $0.00020 $0.00294
Haiku 4.5 $0.00010 $0.00147

Measured 5d ago against content hash d456f2ebcd5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

analyzing-ios-app-security-with-objection scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

4 near-identical copies found in the catalogue:

plugins/asi/skills/analyzing-ios-app-security-with-objection/SKILL.md · 187 lines

How it starts

The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Analyzing iOS App Security with Objection

When to Use

Use this skill when:

  • Performing runtime security assessment of iOS applications during authorized penetration tests
  • Inspecting iOS keychain, filesystem, and memory for sensitive data exposure
  • Bypassing client-side security controls (SSL pinning, jailbreak detection) during security testing
  • Evaluating iOS app behavior at runtime without access to source code

Do not use this skill on production devices without explicit authorization -- Objection modifies app runtime behavior and may trigger security monitoring.

Prerequisites

  • Python 3.10+ with pip
  • Objection installed: pip install objection
  • Frida installed: pip install frida-tools
  • Target iOS device (jailbroken with Frida server, or non-jailbroken with repackaged IPA)
  • For non-jailbroken: objection patchipa to inject Frida gadget into IPA
  • macOS recommended for iOS testing (Xcode, ideviceinstaller)
  • USB connection to target device or network Frida server

Workflow

Step 1: Prepare the Testing Environment

For jailbroken devices:

# Install Frida server on device via Cydia/Sileo
# SSH to device and start Frida server
ssh root@<device_ip> "/usr/sbin/frida-server -D"

# Verify Frida connectivity
frida-ps -U  # List processes on USB-connected device

For non-jailbroken devices (authorized testing):

# Patch IPA with Frida gadget
objection patchipa --source target.ipa --codesign-signature "Apple Development: [email protected]"

# Install patched IPA
ideviceinstaller -i target-patched.ipa

Step 2: Attach Objection to Target App

# Attach to running app by bundle ID
objection --gadget "com.target.app" explore

# Or spawn the app fresh
objection --gadget "com.target.app" explore --startup-command "ios hooking list classes"

Once attached, Objection provides an interactive REPL for runtime exploration.

Step 3: Assess Data Storage Security (MASVS-STORAGE)

# Dump iOS Keychain items accessible to the app
ios keychain dump

# List files in app sandbox
ios plist cat Info.plist
env  # Show app environment paths

# Inspect NSUserDefaults for sensitive data
ios nsuserdefaults get

# List SQLite databases
sqlite connect app_data.db
sqlite execute query "SELECT * FROM credentials"

# Check for sensitive data in pasteboard
ios pasteboard monitor

Read the full file on GitHub · 187 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 187 lines · 99 tokens per session scan A d456f2ebcd5f

Subscribe to this mod's changes

analyzing-ios-app-security-with-objection is a skill published in the GitHub repository plurigrid/asi (62 stars, last pushed 2mo ago), licensed MIT. It adds 99 tokens to every session and 1,468 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

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analyzing-ios-app-security-with-objection

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