Fakehack

Overview

Program:Win32/Fakehack (or similar Rogue Security Software) is a type of Scareware or Potentially Unwanted Program (PUP) that uses social engineering to extort money from users. It intentionally displays highly alarming, fabricated warnings indicating the system is critically infected with viruses or is under active attack, and then coerces the user into purchasing a 'premium' license to resolve these non-existent threats (`T1566.002`).

Understanding Fakehack (Scareware)
To an end-user, the computer suddenly displays official-looking, flashing warnings (often mimicking the Windows Security Center interface) claiming the system is critically compromised. For a SOC analyst, Fakehack is a nuisance that generates support tickets and indicates a lapse in web filtering or user awareness, as it is almost always downloaded manually by a tricked user.

Execution and Deception Mechanics
Fakehack typically gains access via drive-by downloads (`T1189`), bundled software installers, or deceptive ads ('Your PC is infected, click here to scan'). Once installed, it establishes persistence (usually via Registry Run keys) so that it launches automatically. It then runs 'scans' that are designed to always find critical errors. It aggressively hooks into the browser to display pop-ups and may attempt to block legitimate security software or prevent the user from opening the Task Manager until they pay (`T1489`).

Indicators of Compromise & Impact
The impact is primarily financial fraud against the user and a severe degradation of the user experience. Host-based IoCs include the presence of the Fakehack application in `C:\Program Files` (often with a deceptive name like 'Antivirus Pro 2024'), an overwhelming number of pop-up windows, and modifications to the browser's default search engine. Network IoCs include connections to payment gateways associated with known rogue software vendors.

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to the MITRE ATT&CK framework:

Tactical Mitigations

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

• T1566.002: Inspect email links for known malicious domains and use link-rewriting services for time-of-click analysis.

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_FAKEHACK {
    meta:
        description = "Detects Fakehack (advanced_threat)"
        author = "SystemHelpdesk Boilerplate Generator"
        date = "2026-07-06"
    strings:
        $s1 = "fakehack" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

Sigma Rule

title: Suspicious Fakehack Activity
id: 89cbaaecdcf7bf75ea7d07a8b7efb1f8
status: experimental
description: Detects generic indicators of the fakehack malware family.
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
        CommandLine|contains:
            - "*fakehack*"
    condition: selection
level: medium

Containment & Response Steps

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

1. Boot the machine into Safe Mode (this usually prevents the Fakehack software from loading its persistence mechanisms) and uninstall the rogue application.
2. Reset the user's browser settings (home page, search engine, extensions) to their defaults.
3. Run a full scan with a legitimate, enterprise-grade AV solution to ensure no actual malware was downloaded alongside the scareware.
4. Educate the user on how to identify fake security alerts and avoid downloading unapproved software.

What to Avoid

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

1. Do not instruct the user to 'just ignore' the pop-ups; the software must be forcefully removed to restore usability.
2. Avoid assuming the machine is actually infected with the severe malware the scareware claims it found.

References & External Analysis

• Search "fakehack" on VirusTotal (External Analysis)

Frequently Asked Questions

Related Families (Category: advanced_threat)

Explore other malware families in the same category:

• Pswdump
• Mucc
• Catalina
• Hostschanger
• Widdit

Machine-readable

Get this profile as JSON: https://jordanricky1604-ship-it.github.io/malware-families-catalog/api/fakehack.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.