Mumawow

Overview

Executive Summary

Infection Vector and Technical Capabilities

• Process Monitoring and Keylogging: The malware continuously monitors the system's running processes, waiting for the target game executable (e.g., `wow.exe`) to launch. Once detected, it activates a specialized keylogger designed to capture the login sequence.
• Authenticator Bypassing: Advanced variants of Mumawow may attempt to intercept or manipulate the entry of two-factor authentication (2FA) codes, often by rapidly forwarding the captured code to a remote attacker who attempts to log in simultaneously.
• Data Exfiltration: The stolen credentials and account details are exfiltrated via HTTP POST requests to an attacker-controlled server.

Threat Assessment

Incident Response and Remediation

• Global Credential Reset: The absolute highest priority is a complete password reset for the affected gaming account, as well as ANY other service (email, banking) that shares the same or a similar password. This must be done from a *different, clean device*.
• Account Recovery: Contact the game publisher's customer support immediately to initiate account recovery procedures and attempt to reverse any unauthorized in-game transactions.
• Endpoint Eradication: Run a full system scan using a reputable enterprise antivirus solution to remove the Mumawow executable and any associated keylogging DLLs.

Known aliases

Threat reports may refer to this family under multiple names:

• PWS.Mumawow
• TrojanSpy.WoWStealer
• Win32/Muma

MITRE ATT&CK Techniques

This family has been observed using the following ATT&CK techniques: T1555.003 T1056.001 T1048

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.

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_MUMAWOW {
    meta:
        description = "Detects Mumawow (advanced_threat)"
        author = "SystemHelpdesk Boilerplate Generator"
        date = "2026-07-06"
    strings:
        $s1 = "mumawow" ascii wide nocase
        $s2 = "pws.mumawow" ascii wide nocase
        $s3 = "trojanspy.wowstealer" ascii wide nocase
        $s4 = "win32/muma" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

Sigma Rule

title: Suspicious Mumawow Activity
id: a4bdacdb4656d2d3fa24e33291e33c8b
status: experimental
description: Detects generic indicators of the mumawow malware family.
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
        CommandLine|contains:
            - "*mumawow*"
            - "*pws.mumawow*"
            - "*trojanspy.wowstealer*"
            - "*win32/muma*"
    condition: selection
level: medium

References & External Analysis

• Search "mumawow" on VirusTotal (External Analysis)

Frequently Asked Questions

Related Families (Category: advanced_threat)

Explore other malware families in the same category:

• Sbdbat2Exe
• Mucc
• Speed
• Vxidl
• Ayolog

Machine-readable

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