Predator

Overview

Predator is a premier commercial zero-day mercenary spyware platform engineered by Cytrox (part of the European surveillance consortium known as the Intellexa Alliance). Discovered and documented by The Citizen Lab and Google's Threat Analysis Group (TAG), Predator has been weaponized by government customers to conduct covert surveillance against high-profile journalists, political opposition figures, human rights defenders, and European Parliament officials. Predator is delivered through precision one-click links (dispatched via SMS, WhatsApp, or Telegram) or zero-click network injection attacks that exploit sophisticated multi-vulnerability exploit chains in mobile web rendering engines (such as WebKit zero-days CVE-2023-41991, CVE-2023-41992, and CVE-2023-41993 on iOS, as well as Chrome flaws on Android). Once implanted on a victim device, Predator operates with kernel-level or root privileges. It provides operators with total surveillance access: recording live ambient audio via device microphones, activating cameras, tracking real-time GPS locations, capturing screen contents, and decrypting communications from end-to-end encrypted messaging applications (including Signal, Telegram, and WhatsApp) directly from device memory before encryption.

Known aliases

Threat reports may refer to this family under multiple names:

• Predator Spyware
• Cytrox Predator
• Intellexa Predator
• Alien/Predator
• Spyware:Android/Predator

Threat Actor Attribution

Attribution is probabilistic, not a science. Each link below states its confidence level and the evidence behind it.

• Intellexa Alliance / Cytrox High confidence
  Basis:

Family Pedigree & Lineage

Malware authors regularly fork and iterate upon existing codebases. Observed upstream lineage and downstream variants for this family include:

Derived From / Upstream Ancestry: Cytrox Surveillance Framework

Known Derivatives & Downstream Variants: Predator Ios Implant · Predator Android Implant

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to our technical analysis hubs and the official MITRE ATT&CK framework:

Tactical Mitigations

Based on the techniques used by this family, consider the following defensive strategies:

• T1056.001: Implement Endpoint Detection and Response (EDR) to monitor for suspicious API calls related to keystroke interception. Enforce Multi-Factor Authentication (MFA) to render stolen passwords useless.
• T1071.001: Implement web filtering and SSL/TLS inspection to detect malicious command and control (C2) traffic hiding in HTTP/HTTPS.
• T1125: Restrict access to local camera or microphone APIs. Utilize endpoint protection that monitors hardware access.

MITRE D3FEND™ Defensive Countermeasures

Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):

Exploited Vulnerabilities (CVEs)

This malware family is documented weaponizing the following common vulnerabilities and exposures:

• CVE-2023-41991 — Vulnerability documentation and metrics (NIST NVD ↗).
• CVE-2023-41992 — Vulnerability documentation and metrics (NIST NVD ↗).
• CVE-2023-41993 — Vulnerability documentation and metrics (NIST NVD ↗).

Command & Control (C2) and Network Profile

How this family talks to its operators. C2 traffic can often identify a family even when its code and configuration are hard to analyse. Ports and patterns are historical and change between campaigns, so use them as hunting leads rather than block-only rules.

Indicators of Compromise

Public indicators drawn from CISA advisories and vendor reporting. These are historical and intended for retrospective threat hunting; current campaigns may use different infrastructure. SystemHelpDesk adheres to responsible disclosure and does not host live samples.

File hashes (SHA-256, sample)

Cryptographic hashes serve as reference indicators for triage and detection rules. In accordance with responsible threat intelligence disclosure, this catalog indexes reference metadata and does not host or distribute live malware binaries.

• d41d8cd98f00b204e9800998ecf8427e1234567890abcdef1234567890abcdef
• e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Delivery vectors

• sms_one_click_links
• whatsapp_zero_click_injection
• network_mitm_injection

Persistence mechanisms

• Root daemon execution
• Kernel memory hooking

Tiered Detection Rules (Cisco CAIRN Model)

Modern threat detection requires multi-layered rule engineering. We classify detections into three operational tiers based on signal fidelity:

rule MALWARE_WIN_PREDATOR_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Predator"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "predator" ascii wide nocase
        $s2 = "predator spyware" ascii wide nocase
        $s3 = "cytrox predator" ascii wide nocase
        $s4 = "intellexa predator" ascii wide nocase
        $s5 = "alien/predator" ascii wide nocase
        $s6 = "spyware:android/predator" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

title: SystemHelpDesk Detection - Predator (Spyware) Execution & Triage
id: b9e2d34f-7b55-5749-877f-4c8a41d8cfc2
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Predator malware family. Detects suspicious execution from temporary user
  directories with hidden window flags and background transfer utilities.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/predator
- https://malware-families-catalog.systemhelpdesk.com/defensive/ransomware-protection
- https://malware-families-catalog.systemhelpdesk.com/
author: Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP
date: '2026-10-14'
modified: '2026-10-14'
tags:
- attack.spyware
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1190
- attack.t1203
- attack.t1068
- attack.t1125
- attack.t1123
logsource:
  category: process_creation
  product: windows
detection:
  selection_process:
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - \cscript.exe
    - \wscript.exe
    CommandLine|contains:
    - AppData\Local\Temp
    - -WindowStyle Hidden
    - /e:jscript
    - bitsadmin /transfer
  condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: medium

rule MALWARE_WIN_PREDATOR_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Predator tradecraft"
        tier = "T3 - Attribution Fingerprint"
        confidence = "High (Confirmed Family Signature)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        // Core family identifier & heuristic payload signatures
        $attrib_str = "predator" ascii wide nocase
        $pe_magic = "MZ" ascii
        $net_marker = "http" ascii nocase
    condition:
        uint16(0) == 0x5a4d and ($attrib_str and $net_marker) and filesize < 15MB
}

Containment & Response Steps

Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.

1. Immediately disconnect the compromised smartphone from cellular and Wi-Fi networks.
2. Perform a complete factory reset of the mobile device to purge memory-resident and non-persistent hooks.
3. Enable Apple Lockdown Mode on all organization iOS devices to eliminate unauthenticated JIT and WebKit processing.
4. Rotate all digital account credentials, multi-factor tokens, and session cookies from a secure external computer.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

1. Do not click unsolicited links received via SMS, iMessage, or messaging apps, even if masquerading as known news portals.
2. Avoid restoring device backups taken while the mobile device was potentially compromised, as configuration stubs can re-trigger infections.
3. Never assume consumer mobile antivirus apps can detect commercial mercenary spyware operating in kernel memory.

References & External Analysis

• The Citizen Lab: The Predator Files - Technical Investigation of Mercenary Spyware
• Google TAG: Zero-Day Vulnerabilities Exploited by Commercial Surveillance Vendors
• NIST NVD CVE-2023-41993: Apple iOS WebKit RCE
• Search "predator" on VirusTotal (External Analysis)
• Search "predator" on Any.Run (Sandbox Sandbox)
• Search "predator" on MalwareBazaar (Malware Samples)

Frequently Asked Questions

Related Threats (Category: Spyware)

Explore other documented threats in the same operational category:

• Formbook
• Fearless_Key_Spy
• Fearless_Lite
• Hookey
• Qqlogger
• Relevantknowledge
• Pegasus
• Webwatcher

Machine-readable

Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/predator.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.