Mypcbackup

Overview

PUA:Win32/Mypcbackup is a notorious Potentially Unwanted Program (PUA) that operates as highly aggressive 'Scareware'. It masquerades as a legitimate, essential cloud backup utility. However, it utilizes deceptive marketing, fabricated warnings about impending data loss, and extremely intrusive pop-ups to coerce users into purchasing a premium, recurring subscription for a subpar or non-existent cloud storage service.

Understanding Mypcbackup Scareware
To an end-user, Mypcbackup is a constant source of anxiety. It suddenly appears on their machine and begins flashing warnings like 'Your files are not backed up! Hard drive failure imminent!' For a security analyst, it is a manipulative fraud. It is classified as a PUA because it almost always installs itself silently via software bundlers, bypassing user consent, and its primary function is aggressive financial extortion rather than actual utility.

Execution and Deception Mechanics
Mypcbackup is heavily distributed via deceptive freeware bundlers (`T1189`), often piggybacking on downloads like PDF readers or video converters. Upon execution (`T1204.002`), it establishes aggressive persistence via Registry Run keys and multiple Scheduled Tasks (`T1053.005`). It immediately runs a fake 'scan', analyzing the user's files to generate alarming, customized pop-ups (`T1566.002`) claiming massive amounts of data are at risk. It frequently modifies browser settings or installs adware extensions to generate secondary revenue. The constant pop-ups are designed to wear the user down until they enter their credit card information to stop the harassment.

Indicators of Compromise & Impact
The primary impact is financial loss (recurring fraudulent subscriptions) and a severely degraded user experience due to constant, uncloseable pop-ups and system sluggishness. Incident responders will observe the unexpected installation of the Mypcbackup GUI (usually in `C:\Program Files (x86)\MyPC Backup`). EDR logs will show the creation of multiple persistent startup entries designed to launch the fake scanner GUI on a recurring basis.

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

Sigma Rule

title: Suspicious Mypcbackup Activity
id: 2c6031df804b5fb2695a2845af102723
status: experimental
description: Detects generic indicators of the mypcbackup malware family.
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
        CommandLine|contains:
            - "*mypcbackup*"
    condition: selection
level: medium

Containment & Response Steps

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

1. Use the Windows Control Panel to thoroughly uninstall the Mypcbackup software and any bundled applications installed on the same date.
2. Deploy an enterprise adware/PUA removal tool (e.g., Malwarebytes) to locate and strip the deeply embedded Scheduled Tasks and registry hooks left behind.
3. If the user entered credit card information into the software's portal, advise them to contact their bank immediately to dispute the fraudulent charge and cancel the recurring subscription.
4. Force a complete reset of all installed web browsers to factory defaults to eradicate any bundled rogue extensions.

What to Avoid

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

1. Do not rely solely on the software's provided uninstaller; it frequently leaves behind watchdog services to generate pop-ups later or reinstall the software.
2. Avoid paying the requested fee; it funds fraudulent operations and traps the user in a difficult-to-cancel recurring billing cycle.

References & External Analysis

• Search "mypcbackup" on VirusTotal (External Analysis)

Frequently Asked Questions

Related Families (Category: advanced_threat)

Explore other malware families in the same category:

• Qqspy
• Vrbrothers
• Plicker
• Keybase
• Garrun

Machine-readable

Get this profile as JSON: https://jordan123234-malware-families-explorer.static.hf.space/api/mypcbackup.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.