Amonetize

Overview

Amonetize (cataloged in antimalware telemetry as PUA:Win32/Amonetize, SoftwareBundler:Win32/Amonetize, and Adware.Amonetize) is a commercial pay-per-install (PPI) software installer wrapper and downloader that emerged around 2012. Marketed to freeware developers and webmasters as a software monetization platform, Amonetize wraps legitimate software programs inside a multi-stage installer that presents users with deceptive opt-in prompts for third-party adware, toolbars, and browser hijackers. When executed, Amonetize communicates with remote affiliate tracking servers over HTTP, downloads selected secondary advertising payloads, modifies browser shortcuts and proxy settings, and creates persistent background tasks to monitor system activities. The aggressive installation of unwanted auxiliary software degrades endpoint stability, generates unwanted desktop pop-ups, and exposes users to privacy risks.

Known aliases

Threat reports may refer to this family under multiple names:

• PUA:Win32/Amonetize
• SoftwareBundler:Win32/Amonetize
• Adware.Amonetize
• Win32/Amonetize
• Amonetize Installer

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: Pay-Per-Install Software Bundlers

Known Derivatives & Downstream Variants: Amonetize.A · Amonetize.Wrapper · Amonetize.Gen

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:

• T1036.005: Monitor for executable files running from unusual paths or with deceptive names. Use EDR to detect process masquerading.
• T1071.001: Implement web filtering and SSL/TLS inspection to detect malicious command and control (C2) traffic hiding in HTTP/HTTPS.
• T1105: Implement network intrusion detection systems (NIDS) and host-based firewalls to block unauthorized inbound or outbound file transfers.

MITRE D3FEND™ Defensive Countermeasures

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

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.

• e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6
• 7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6a7b8c

Delivery vectors

• Commercial PPI wrapper installations on third-party download mirrors
• Pirated software packages containing bundled monetization installers

Persistence mechanisms

• HKCU\Software\Microsoft\Windows\CurrentVersion\Run\AmonetizeSync
• %LOCALAPPDATA%\Amonetize\amonetize.exe

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_AMONETIZE_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Amonetize"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "amonetize" ascii wide nocase
        $s2 = "pua:win32/amonetize" ascii wide nocase
        $s3 = "softwarebundler:win32/amonetize" ascii wide nocase
        $s4 = "adware.amonetize" ascii wide nocase
        $s5 = "win32/amonetize" ascii wide nocase
        $s6 = "amonetize installer" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

title: SystemHelpDesk Detection - Amonetize (Downloader) Execution & Triage
id: ec844b9c-478e-5b42-9414-a5d0947c9453
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Amonetize 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/amonetize
- 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.downloader
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1105
- attack.t1547_001
- attack.t1176
- attack.t1071_001
- attack.t1036_005
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_AMONETIZE_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Amonetize 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 = "amonetize" 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. Terminate active Amonetize installer wrappers using Task Manager.
2. Review recently installed applications in Control Panel and uninstall all unfamiliar third-party software.
3. Delete scheduled tasks and registry run keys created during the installation process.
4. Reset browser configurations and inspect browser shortcuts for appended affiliate redirect URLs.

What to Avoid

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

1. Do not rush through installer wizards without reading each screen and clearing pre-checked third-party offers.
2. Avoid downloading software from unverified freeware aggregator websites.

References & External Analysis

• Microsoft Defender Security Intelligence - PUA:Win32/Amonetize
• Malwarebytes Labs Threat Intelligence - Adware.Amonetize
• Search "amonetize" on VirusTotal (External Analysis)
• Search "amonetize" on Any.Run (Sandbox Sandbox)
• Search "amonetize" on MalwareBazaar (Malware Samples)

Frequently Asked Questions

Related Threats (Category: Downloader)

Explore other documented threats in the same operational category:

• Fraudrop
• Gepys
• Bancteian
• Chapak
• Rubinurd
• Nymeria
• Aim_Downloader
• Dofoil

Machine-readable

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