Phonerooter
Overview
Executive Summary
PhoneRooter is a classification encompassing various Android "rooting" utilities (e.g., KingoRoot, Towelroot, Framaroot) that utilize software exploits to bypass the Android operating system's security architecture and grant the user "superuser" or "root" access. While sometimes used intentionally by tech-savvy users to customize their devices, these tools are universally classified as HackTools or Exploits because they deliberately attack vulnerabilities in the Linux kernel to permanently subvert the device's security model. Threat actors frequently weaponize these identical exploits to quietly compromise mobile devices.Infection Vector and Technical Capabilities
Legitimate users intentionally download these APKs from third-party websites (as they are banned from the Google Play Store). However, malicious apps often embed these exploits to achieve root access silently in the background without user consent. Upon execution, PhoneRooter tools perform the following actions:- Vulnerability Exploitation: The tool scans the device's hardware architecture and Android OS version, then deploys a specific, known exploit (e.g., "Dirty COW," "PingPongRoot") targeting a flaw in the Linux kernel or a specific hardware driver.
- Privilege Escalation: If the exploit is successful, the tool bypasses the Android Application Sandbox, elevating its privileges from a standard application to a highly privileged kernel-level process.
- SU Binary Installation: It remounts the system partition as read/write and installs the `su` (superuser) binary and a root management app (like SuperSU), permanently breaking the security model and allowing any application (with permission) to execute arbitrary commands.
Threat Assessment
The presence of a PhoneRooter tool or a successfully rooted device in a corporate environment (e.g., BYOD or Corporate-Owned devices) is a critical compliance violation. Rooting completely destroys the integrity of MDM (Mobile Device Management) controls, allows data exfiltration by bypassing application sandboxing, and makes the device highly susceptible to advanced mobile malware (like banking trojans that steal SMS 2FA codes).Incident Response and Remediation
- MDM Enforcement (Automated Isolation): Enterprise MDM solutions (e.g., Intune, Workspace ONE) must be configured with strict compliance policies that constantly monitor for "Jailbroken/Rooted" status. If detected, the MDM should automatically revoke corporate access, wipe corporate data, and quarantine the device from the network.
- Device Wipe (Factory Reset): A device that has been rooted using an exploit cannot be trusted. The only secure remediation is a complete factory reset, which restores the original, uncompromised system partition from the manufacturer's recovery image.
- Policy Review: Reiterate corporate BYOD policies regarding unauthorized device modifications and enforce strict conditional access based on device health attestation.
Known aliases
Threat reports may refer to this family under multiple names:
MITRE ATT&CK Techniques
This family has been observed using the following ATT&CK techniques: T1068 T1404 T1636
Generated Detections (Boilerplate)
These YARA and Sigma rules are auto-generated based on the family name and aliases. They must be heavily tuned before deployment in a production environment.
YARA Rule
rule MALWARE_WIN_PHONEROOTER {
meta:
description = "Detects Phonerooter (trojan)"
author = "SystemHelpdesk Boilerplate Generator"
date = "2026-07-06"
strings:
$s1 = "phonerooter" ascii wide nocase
$s2 = "hacktool.androidroot" ascii wide nocase
$s3 = "exploit.android.rooter" ascii wide nocase
$s4 = "tool.kingoroot" ascii wide nocase
condition:
uint16(0) == 0x5a4d and any of them
}Sigma Rule
title: Suspicious Phonerooter Activity
id: 6ef7ea4ec598436b5b0d89b8490e3b8b
status: experimental
description: Detects generic indicators of the phonerooter malware family.
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith:
- '\cmd.exe'
- '\powershell.exe'
CommandLine|contains:
- "*phonerooter*"
- "*hacktool.androidroot*"
- "*exploit.android.rooter*"
- "*tool.kingoroot*"
condition: selection
level: mediumReferences & External Analysis
- Search "phonerooter" on VirusTotal (External Analysis)
Frequently Asked Questions
How do I remove the Phonerooter Trojan from Windows?
Manual removal of Phonerooter is highly discouraged as it may leave persistence mechanisms intact. We recommend disconnecting the device from the internet and utilizing a professional incident response service or enterprise-grade EDR software to conduct a full forensic sweep.
Is Phonerooter a virus or a Trojan?
Phonerooter is classified as a Trojan. Unlike traditional viruses that infect files, modern malware like Phonerooter typically operates as a standalone payload designed to compromise systems, steal data, or deploy secondary stage implants.
What are the main symptoms of a Phonerooter infection?
Symptoms of Phonerooter can include unexpected system slowness, unauthorized outbound network traffic to unknown IP addresses, disabled security software, and suspicious background processes running from AppData or Temp directories.
Related Families (Category: trojan)
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Protect Your Network Against Trojans
Want to prevent Phonerooter and similar threats from compromising your organization? Read our comprehensive defensive guide: Banking Trojan Protection.
Machine-readable
Get this profile as JSON: https://jordanricky1604-ship-it.github.io/malware-families-catalog/api/phonerooter.json
Ecosystem & Interactive Environments
This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.